CN111799880A - Off-grid integrated communication power supply system, control method and storage medium - Google Patents

Off-grid integrated communication power supply system, control method and storage medium Download PDF

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Publication number
CN111799880A
CN111799880A CN202010715292.2A CN202010715292A CN111799880A CN 111799880 A CN111799880 A CN 111799880A CN 202010715292 A CN202010715292 A CN 202010715292A CN 111799880 A CN111799880 A CN 111799880A
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China
Prior art keywords
energy
module
power supply
energy storage
power generation
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CN202010715292.2A
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Chinese (zh)
Inventor
许阳秋
罗超
申智渊
沈培峰
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Shenzhen Kweight Technology Co ltd
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Shenzhen Kweight Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention belongs to the technical field of communication power supplies, and discloses an off-grid integrated communication power supply system, a control method and a storage medium. The energy source of the invention adopts solar energy, wind energy and diesel oil as power supply modules to realize multi-energy complementation, and the energy storage modules are matched, so that a plurality of systems are superposed to ensure that the system stably and efficiently provides energy for loads, thereby having strong environmental adaptability; through the cooperation of the power supply module, the central processing module and the communication module, parameters of each module are uploaded to the central processing module, and the set control logic prioritizes power supply sequence and protection switching, so that stable and safe power supply is ensured.

Description

Off-grid integrated communication power supply system, control method and storage medium
Technical Field
The invention belongs to the technical field of communication power supplies, and particularly relates to an off-grid integrated communication power supply system and a control method thereof.
Background
At present, various inductive loads such as relays exist in a communication device, and overvoltage and heavy current impact can be generated on the communication device at the moment of power-on and power-off. The prior peer-to-peer device reduces the damage of overvoltage and overcurrent to the peer-to-peer device by the protection action of a high-capacity inductor and a capacitor at the input front stage, has no input power supply monitoring function, and supplies power to a main power supply no matter how the input power supply fluctuates; the method has a certain inhibiting effect on instantaneous high-power pulse impact, but when the communication device is in an overvoltage working state for a long time, the front-stage power supply protection circuit of the module can not release overload energy in time to generate a breakdown phenomenon, and even the communication device is damaged. Meanwhile, in the prior art, when a power supply system is arranged for communication equipment, the stability of the power supply is usually considered, namely, the stability of the power supply is enhanced to design and produce the power supply system, but certain potential safety hazards exist in the technology. With the development of power supply technology, a certain bottleneck exists in the current power supply design scheme, and under the situation, how to improve the safety of a power supply system of communication equipment becomes a problem which needs to be solved urgently. In the prior art, wind energy or solar energy is often adopted for power supply, the power supply mode is single, the single power supply mode is related to weather conditions, and if cloudy days are met, the power supply is unstable only by adopting solar energy, the environmental adaptability is poor, only one energy supply channel is provided, and the problem of unsafe load exists.
Through the above analysis, the problems and defects of the prior art are as follows:
the power supply system of the existing communication device only adopts wind energy or solar energy to supply power, the power supply mode is single, the power supply mode is related to climatic conditions, the environmental adaptability is poor, only one energy supply channel is provided, and the problem of unsafe load exists.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an off-grid integrated communication power supply system and a control method thereof.
The invention is realized in this way, an off-grid integrated communication power supply system, comprising:
the system comprises an energy supply module, an inverter, an energy storage module, a data acquisition module, a central processing module, an early warning module and a remote control module;
the energy supply module comprises a wind power generation unit, a solar power generation unit and a diesel power generation unit, is electrically connected with the central processing module, the energy storage module and the load, and is used for providing power for the energy storage module or the load;
the inverter is electrically connected with the central processing module, the energy supply module and the load and is used for converting direct current into alternating current;
the data acquisition module is used for acquiring data of the energy supply module, the converter and the energy storage module and transmitting the data to the central processing module;
the central processing module is connected with each module through a communication line, analyzes and processes the acquired data, and sends corresponding instructions to each module.
Further, the early warning module is in communication connection with the central processing module and is used for identifying the abnormity and/or the fault of the off-grid integrated communication power supply system through an early warning device, controlling the generator set of the abnormal and/or faulty energy supply module to be turned off and controlling the standby generator set to be turned on.
Furthermore, the remote control module is connected with the central processing module through a communication line and used for sending a control instruction to the central processing module so as to indirectly control the working conditions of the energy supply module, the inverter, the energy storage module and the data acquisition module.
Furthermore, the energy storage module comprises a battery pack, a charging protection unit for protecting the battery pack and intelligently charging, and a charging pack control unit connected with the charging protection unit, the charging protection circuit is connected with the battery pack, and the charging pack control unit is connected with the central processing module; and the charging control unit realizes the charging and discharging of the battery pack according to the instruction controlled by the central processing module.
Another objective of the present invention is to provide a method for controlling an off-grid integrated communication power supply system, which includes the following steps:
s101: the method comprises the following steps that a sensor collects energy storage data of various types of energy power generation equipment and transmits the energy storage data to a main controller; wherein the energy generating equipment comprises wind energy generating equipment, solar energy generating equipment and diesel engine generating equipment;
s102: detecting the charge amount of the energy storage battery pack and transmitting the charge amount to the main controller;
s103: the main controller determines a power supply mode of the system according to the energy storage data, the power consumption of the load and the charge quantity, and judges the working condition of the energy storage battery;
s104: the main controller acquires the charge condition of the energy storage battery pack in real time, and if the energy storage battery pack meets the preset discharge requirement, the main controller jumps to S103; otherwise, the energy storage battery pack is in an idle or charging state, and the system continuously supplies power.
Further, in step S103, the master controller determines a power supply mode of the system according to the energy storage data, the power consumption of the load, and the power-on amount, specifically:
the energy storage data comprises wind energy actual generated energy, solar energy actual generated energy and diesel engine actual generated energy;
if the actual wind power generation amount or the actual solar power generation amount is larger than the load power consumption amount, adopting a wind power supply mode or a solar power supply mode;
if the actual wind power generation amount or the actual solar power generation amount is smaller than the load power consumption amount and the sum of the actual wind power generation amount and the actual solar power generation amount is larger than the load power consumption amount, the solar energy and the wind energy are mixed for power supply;
if the sum of the actual wind energy generation amount and the actual solar energy generation amount is less than the load power consumption amount and the sum of the actual wind energy generation amount, the actual solar energy generation amount and the charge amount is greater than the load power consumption amount, the solar energy, the wind energy and the energy storage battery pack are used for hybrid power supply;
and if the sum of the actual wind energy generating capacity, the actual solar energy generating capacity and the charge capacity is less than the load power consumption, the solar energy, the wind energy, the energy storage battery pack and the diesel engine are used for hybrid power supply.
Further, if the sum of the wind energy actual power generation amount, the solar energy actual power generation amount and the charge amount is less than the load power consumption amount, the method further comprises the following steps:
and the main controller determines the power generation time of the diesel engine according to the actual power generation of the wind energy and the actual power generation of the solar energy, the charged energy and the hourly energy consumption of the load.
Further, in step S104, the meeting of the preset discharge requirement includes:
if the charge amount is larger than a first pre-charge value and smaller than or equal to a second preset interval, and the actual power generation amount of the wind power generation equipment and the solar power generation equipment is smaller than the power consumption amount of the load, the energy storage battery pack is in a discharge mode;
the charging mode is as follows: and if the charged quantity is smaller than a first preset charged interval value, charging the energy storage battery pack by using a preset first current.
Further, after step S4, the method further includes:
the environment monitor collects the environment parameters of the energy power generation equipment, the main controller and the energy storage battery pack and transmits the environment parameters to the main controller, the main controller analyzes and compares the preset conditions with the environment parameters, if the environment parameters exceed the range of the preset conditions, the early warning device identifies the abnormity and/or the fault of the off-grid integrated communication power supply system, controls the abnormal and/or the fault of the energy power generation equipment to be closed, and controls the energy storage battery pack to be opened.
Another object of the present invention is to provide a computer-readable storage medium, which includes a computer-readable program, and when the computer-readable program is executed on an electronic device, the computer-readable program provides a user input interface to implement the method for controlling an off-network integrated communication power system.
By combining all the technical schemes, the invention has the advantages and positive effects that: the off-grid integrated communication power supply system provided by the invention can select independent or hybrid power supply of a wind, light and diesel storage system; AC/DC output and remote monitoring; the energy storage module provides multiple choices of lead-acid storage batteries, iron phosphate nutria and the like. In addition, the off-grid integrated communication power supply system provided by the invention also has the following advantages:
compared with the prior art, the off-grid integrated communication power supply system provided by the application has the advantages and positive effects that: the energy adopts solar energy, wind energy and diesel oil as power supply modules to realize multi-energy complementation, and the energy storage modules are matched, so that a plurality of systems are superposed to ensure that the system stably and efficiently provides energy for loads, and the system has strong environmental adaptability; through the cooperation of the power supply module, the central processing module and the communication module, parameters of each module are uploaded to the central processing module, and the set control logic prioritizes power supply sequence and protection switching, so that stable and safe power supply is ensured.
The remote monitoring module is in communication monitoring with the central processing module, and the central processing module can control the on-off of each path of energy input and each path of load output through remote signaling remote monitoring operation parameters, so that the power supply stability and the safety and reliability of the load are ensured.
(1) The intelligent power module: the solar power module of the fifth generation initiated in the industry is complementary online, is intelligent in value and can efficiently convert system energy;
(2) system multilevel double backup: the system is designed in a full-modular mode, and a multi-stage double backup program I ensures the safety and reliability of the system;
(3) hyperfine battery management: the mV-level storage battery is subjected to float charge management, has a self-learning function, and can maintain capacity differentiation intelligent distribution I to ensure the service life and the service performance of the battery;
(4) complete remote monitoring: remote signaling, remote measuring, remote control and one-stop intelligent control;
(5) integrated input, hot plug and online complementation: all modules are integrally input into a leather-held hot plug, and energy resources can be used for online backup and maximum utilization;
(6) strong environmental adaptability: the off-grid power supply product can be widely suitable for various severe and complex environmental conditions such as indoor and outdoor conditions, severe cold, high temperature and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a block diagram of an off-grid integrated communication power supply system according to an embodiment of the present invention;
in the figure: 1. an energy supply module; 2. an inverter; 3. an energy storage module; 4. a data acquisition module; 5. a central processing module; 6. an early warning module; 7. and a remote control module.
Fig. 2 is a schematic diagram of an off-grid integrated communication power supply system according to an embodiment of the present invention.
Fig. 3 is a flowchart of a control method of the off-grid integrated communication power supply system according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In view of the problems in the prior art, the present invention provides an off-grid integrated communication power supply system and a control method thereof, and the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an off-grid integrated communication power supply system provided in an embodiment of the present invention includes: the system comprises an energy supply module 1, an inverter 2, an energy storage module 3, a data acquisition module 4, a central processing module 5, an early warning module 6 and a remote control module 7.
The energy supply module 1 comprises a wind power generation unit, a solar power generation unit and a diesel power generation unit, is electrically connected with the central processing module 5, the energy storage module 3 and the load, and is used for providing power for the energy storage module 3 or the load;
the inverter 2 is electrically connected with the central processing module 5, the energy supply module 1 and the load and is used for converting direct current into alternating current;
the data acquisition module 4 is used for acquiring data of the energy supply module 1, the converter and the energy storage module 3 and transmitting the data to the central processing module 5;
specifically, the data acquisition module 4 includes an energy supply module data acquisition module, an environmental data acquisition module and a load data acquisition module thereof; the energy supply module data acquisition module is used for acquiring voltage, temperature, electric quantity and charging state data of each energy storage module 3 supplied by energy.
And the central processing module 5 is connected with each module through a communication line, analyzes and processes the acquired data, and sends corresponding instructions to each module.
Compared with the prior art, the energy source in the embodiment of the invention adopts solar energy, wind energy and diesel oil as power supply modules to realize multi-energy complementation, and the energy storage module 3 is matched, so that a plurality of systems are superposed to ensure that the system stably and efficiently provides energy for a load, and the system has strong environmental adaptability; through the cooperation of the energy supply module 1, the central processing module 5 and the communication line, the parameters of each module are uploaded to the central processing module 5, and the set control logic prioritizes the power supply sequence and protection switching, so that the stability and safety of power supply are ensured.
In one embodiment, the off-grid integrated communication power supply system further comprises an early warning module 6. And the early warning module 6 is in communication connection with the central processing module 5 and is used for identifying the abnormity and/or the fault of the off-grid integrated communication power supply system through the early warning device, controlling the generator set of the abnormal and/or faulty energy supply module 1 to be turned off and controlling the standby generator set to be turned on.
Specifically, this early warning module 6 includes LED electronic display screen, voice broadcast module, alarm lamp and warning calling set, can make the audio-visual parameter information and the humiture information of mastering each energy supply module 1 of staff, and early warning module 6 can in time effectually arouse outside personnel's attention to can carry out voice broadcast and whistle the alarm according to dangerous grade, improved whole management and control system's efficiency greatly.
And the remote control module 7 is connected with the central processing module 5 through a communication line and is used for sending a control instruction to the central processing module 5 so as to indirectly control the working conditions of the energy supply module 1, the inverter 2, the energy storage module 3 and the data acquisition module 4.
According to the off-network integrated communication power supply system, the remote control module 7 is a mobile control terminal, the central processing module 5 can communicate with the mobile control terminal through a communication line, relevant parameter information of the system is transmitted to the mobile control terminal, and meanwhile the central processing module 5 can also receive a control signal of the mobile control terminal, so that the efficiency of the off-network integrated communication power supply system is greatly improved. Here, the remote monitoring module and the central processing module 5 enable the central processing module 5 to remotely monitor the operation parameters through remote signaling, and can control the on/off of each path of energy input and each path of load output, so as to ensure stable power supply and safe and reliable load.
The energy storage module 3 in the embodiment of the invention comprises a battery pack, a charging protection unit for protecting the battery pack and intelligently charging, and a charging pack control unit connected with the charging protection unit, wherein a charging protection circuit is connected with the battery pack, and the charging pack control unit is connected with a central processing module 5; the charging control unit realizes charging and discharging of the battery pack according to the instruction controlled by the central processing module 5. By arranging the charging protection unit and the charging set control unit in the energy storage module 3, the service life of the battery set can be effectively prolonged.
Specifically, the charging set control module controls the energy storage module 3 to reasonably switch between charging and discharging according to an instruction signal sent by the central processing module 5, and controls the output current to be distributed between two paths of direct supply to a load and conversion into alternating current through the inverter 2.
The data acquisition module 4 in the embodiment of the present invention includes a plurality of optocouplers PC817A, a peripheral circuit cooperating with the plurality of optocouplers PC817A, a plurality of operational amplifiers 74LS158, and a peripheral circuit cooperating with the operational amplifiers 74LS 158; the signal access end is connected with the input end of the optical coupler PC817A, the output end of the optical coupler PC817A is connected with the input end of the operational amplifier 74LS158, and the output end of the operational amplifier 74LS158 is connected with the input end of the central processor module. The data acquisition module 4 in the embodiment of the invention can isolate various interferences of the battery in the charging and discharging operation through the optical coupler, and ensure the accuracy of acquiring each operation data of the power supply.
As shown in fig. 2, the method for controlling an off-grid integrated communication power supply system according to an embodiment of the present invention includes the following steps:
s101: the sensor collects energy storage data of various types of energy generating equipment and transmits the energy storage data to the main controller; the energy power generation equipment comprises wind power generation equipment, solar power generation equipment and diesel power generation equipment;
specifically, the wind power generation device and the solar power generation device are the first main power generation device, and the diesel power generation device is the auxiliary power generation device. Of course, in the daytime, the commercial power can be directly used as a main power supply channel.
S102: detecting the charge amount of the energy storage battery pack and transmitting the charge amount to the main controller;
s103: the main controller determines a power supply mode of the system according to the energy storage data, the power consumption and the charge quantity of the load, and judges the working condition of the energy storage battery;
specifically, the power supply mode comprises wind energy power supply, solar power generation, hybrid power supply of wind energy, solar energy and an energy storage battery pack, power supply of the energy storage battery pack, hybrid power supply of the solar energy, the energy storage battery pack and a diesel engine, and power supply of the diesel engine, wherein the main controller preferably selects a wind energy, solar energy or hybrid power supply mode of the wind energy, solar energy and the energy storage battery pack, and the diesel engine generates power for the power supply mode finally selected by the system.
S104: the main controller acquires the charge condition of the energy storage battery pack in real time, and if the energy storage battery pack meets the preset discharge requirement, the main controller jumps to S103; otherwise, the energy storage battery pack is in an idle or charging state, and the system continuously supplies power.
Specifically, the invention can switch and control the power supply of the load end by wind power generation equipment, solar power generation equipment, diesel engine power generation equipment and the like so as to realize that the load end is preferentially supplied with power by wind power generation and solar power generation and the load end is supplied with power by solar energy when wind power is not generated; when the solar energy and wind power generation system is in extreme weather, the battery pack of the energy storage system supplies power when the solar energy and the wind power generation are not carried out; when the electric power of the battery pack is exhausted, the diesel generator is automatically switched to be started to supply the electric power, and each system is connected with a system main control unit through a chain circuit breaker, a switching controller, signal transmission equipment and the like so as to realize the control of the whole system and ensure the electric power supply.
The wind, light and diesel storage system can be selected to supply power independently or in a hybrid mode in the embodiment of the invention; AC/DC output and remote monitoring; the energy storage battery pack provides multiple choices of lead-acid storage batteries, iron phosphate nutria and the like. Complete remote monitoring can be realized through remote signaling, remote measurement, remote control and one-stop intelligent management and control.
In step S103, the main controller determines a power supply mode of the system according to the energy storage data, the power consumption of the load, and the charge amount, specifically:
the energy storage data comprises wind energy actual generated energy, solar energy actual generated energy and diesel engine actual generated energy;
if the actual wind power generation amount or the actual solar power generation amount is larger than the load power consumption amount, adopting a wind power supply mode or a solar power supply mode;
if the actual wind energy generation or the actual solar energy generation is smaller than the load power consumption and the sum of the actual wind energy generation and the actual solar energy generation is larger than the load power consumption, the solar energy and the wind energy are mixed for power supply;
if the sum of the wind energy actual generated energy and the solar energy actual generated energy is less than the load power consumption and the sum of the wind energy actual generated energy and the solar energy actual generated energy and the charge amount is greater than the load power consumption, the solar energy, wind energy and energy storage battery pack is adopted for hybrid power supply;
and if the sum of the actual generated energy of the wind energy, the actual generated energy of the solar energy and the charged electricity is less than the load electricity consumption, the solar energy, the wind energy, the energy storage battery and the diesel engine are used for hybrid power supply.
If the sum of the actual generated energy of wind energy, the actual generated energy of solar energy and the charged electricity quantity is less than the load electricity consumption, the method further comprises the following steps:
the main controller determines the power generation time of the diesel engine according to the actual power generation amount of wind energy, the actual power generation amount of solar energy, the charged energy and the hourly energy consumption condition of the load.
In the embodiment of the invention, solar energy, wind energy and diesel oil are used as power supply modules, so that multi-energy complementation, online complementation, intelligent check-in and system energy efficient conversion are realized, and complete remote monitoring can be realized through remote signaling, remote measurement, remote control and one-stop intelligent control.
In step S104 in the embodiment of the present invention, satisfying the preset discharge requirement includes:
if the charged quantity is greater than the first pre-charged value and less than or equal to a second preset interval, and the actual generated energy of the wind power generation equipment and the solar billing equipment is less than the power consumption of the load, the energy storage battery pack is in a discharging mode; the charging mode is as follows: and if the charged quantity is smaller than a first preset charged interval value, charging the energy storage battery pack by using a preset first current.
According to the embodiment of the invention, the working parameters of the discharging mode and the charging mode are divided, so that the working conditions can be conveniently and rapidly identified, and the control efficiency is improved.
After step S104, the embodiment of the present invention further includes:
the environment monitor collects environment parameters of the energy power generation equipment, the main controller and the energy storage battery pack and transmits the environment parameters to the main controller, the main controller analyzes and compares the preset conditions with the environment parameters, and if the environment parameters exceed the range of the preset conditions, the early warning device identifies the abnormity and/or the fault of the off-grid integrated communication power supply system, controls the abnormal and/or the fault energy power generation equipment to be closed, and controls the energy storage battery pack to be opened.
The working state of each energy power generation device can be monitored in real time through the early warning device, and the abnormal energy power generation devices can be stopped in time, so that the energy power generation devices are prevented from being damaged when exceeding the working parameter range.
Specifically, this early warning device includes LED electronic display screen, voice broadcast module, alarm lamp and warning calling set, can make the audio-visual parameter information and the humiture information of mastering each energy supply module 1 of staff, and alarm system can in time effectually arouse outside personnel's attention to can carry out voice broadcast and whistle the alarm according to dangerous grade, improve whole management and control system's efficiency greatly.
Compared with the prior art, the invention breaks through the inherent thinking of the prior art in the field, overcomes the defects and shortcomings of the prior art, adopts two power generation units of wind power generation and solar power generation as main energy sources, adopts a diesel generator as a standby emergency power generation unit, realizes multi-energy complementation, adds an energy storage system, and superposes multiple systems to ensure that the system can provide high-quality energy supply for loads stably and high-quality, can be suitable for all places without power grid coverage, including places with corrosion, flammability, explosiveness and the like, particularly in the fields with mobile energy requirements such as communication base stations, forest fire monitoring, scientific investigation, exploration, emergency rescue and the like, is easy to install and maintain, has stable performance and high efficiency, and can carry out wind resistance, lodging resistance, wind resistance, light power generation and efficiency on trial effect by autonomous design, trial production, actual trial on-site trial of the project and the like, The test of the quality of the electric energy and other aspects, the performance of each aspect can meet the design requirement, the effect is very obvious, and the perfect success is achieved; the wind, light and oil storage and oil engine complementary off-grid power supply control system has the advantages of high integration level, high safety, high working efficiency, long service life and all-weather power supply.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, the computer program product comprises one or more computer instructions. The procedures or functions described in accordance with the embodiments of the invention are all or partially effected when the computer program instructions are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An off-grid integrated communication power supply system, comprising:
the energy supply module, the inverter, the energy storage module, the data acquisition module and the central processing module;
the energy supply module comprises a wind power generation unit, a solar power generation unit and a diesel power generation unit, is electrically connected with the central processing module, the energy storage module and the load, and is used for providing power for the energy storage module or the load;
the inverter is electrically connected with the central processing module, the energy supply module and the load and is used for converting direct current into alternating current;
the data acquisition module is used for acquiring data of the energy supply module, the converter and the energy storage module and transmitting the data to the central processing module;
the central processing module is connected with each module through a communication line, analyzes and processes the acquired data, and sends corresponding instructions to each module.
2. The off-grid integrated communication power supply system of claim 1, further comprising an early warning module in communication connection with the central processing module, wherein the early warning module is configured to identify an abnormality and/or a failure of the off-grid integrated communication power supply system through an early warning device, control a generator set of the abnormal and/or failed energy supply module to be turned off, and control a standby generator set to be turned on.
3. The off-grid integrated communication power supply system of claim 1, wherein the energy storage module comprises a battery pack, a charging protection unit for protecting the battery pack and performing intelligent charging, and a charging pack control unit connected with the charging protection unit, the charging protection circuit is connected with the battery pack, and the charging pack control unit is connected with the central processing module; and the charging control unit realizes the charging and discharging of the battery pack according to the instruction controlled by the central processing module.
4. The off-grid integrated communication power supply system according to claim 1, further comprising a remote control module 7 connected to the central processing module through a communication line, wherein the remote control module 7 is configured to send a control command to the central processing module to indirectly control the operating conditions of the energy supply module, the inverter, the energy storage module, and the data acquisition module.
5. A control method for the off-grid integrated communication power supply system according to any one of claims 1 to 4, wherein the control method for the off-grid integrated communication power supply system comprises the following steps:
s101: the method comprises the following steps that a sensor collects energy storage data of various types of energy power generation equipment and transmits the energy storage data to a main controller; wherein the energy generating equipment comprises wind energy generating equipment, solar energy generating equipment and diesel engine generating equipment;
s102: detecting the charge amount of the energy storage battery pack and transmitting the charge amount to the main controller;
s103: the main controller determines a power supply mode of the system according to the energy storage data, the power consumption of the load and the charge quantity, and judges the working condition of the energy storage battery;
s104: the main controller acquires the charge condition of the energy storage battery pack in real time, and if the energy storage battery pack meets the preset discharge requirement, the main controller jumps to S103; otherwise, the energy storage battery pack is in an idle or charging state, and the system continuously supplies power.
6. The method according to claim 5, wherein in step S103, the main controller determines a power supply mode of the system according to the energy storage data, a power consumption of the load, and the power-on amount, specifically:
the energy storage data comprises wind energy actual generated energy, solar energy actual generated energy and diesel engine actual generated energy;
if the actual wind power generation amount or the actual solar power generation amount is larger than the load power consumption amount, adopting a wind power supply mode or a solar power supply mode;
if the actual wind power generation amount or the actual solar power generation amount is smaller than the load power consumption amount and the sum of the actual wind power generation amount and the actual solar power generation amount is larger than the load power consumption amount, the solar energy and the wind energy are mixed for power supply;
if the sum of the actual wind energy generation amount and the actual solar energy generation amount is less than the load power consumption amount and the sum of the actual wind energy generation amount, the actual solar energy generation amount and the charge amount is greater than the load power consumption amount, the solar energy, the wind energy and the energy storage battery pack are used for hybrid power supply;
and if the sum of the actual wind energy generating capacity, the actual solar energy generating capacity and the charge capacity is less than the load power consumption, the solar energy, the wind energy, the energy storage battery pack and the diesel engine are used for hybrid power supply.
7. The method for controlling the off-grid integrated communication power supply system according to claim 6, wherein if the sum of the actual wind power generation amount, the actual solar power generation amount and the charged amount is less than the power consumption of the load, the method further comprises:
and the main controller determines the power generation time of the diesel engine according to the actual power generation of the wind energy and the actual power generation of the solar energy, the charged energy and the hourly energy consumption of the load.
8. The method for controlling an off-grid integrated communication power supply system according to claim 5, wherein in step S104, the meeting of the preset discharging requirement includes:
if the charge amount is larger than a first pre-charge value and smaller than or equal to a second preset interval, and the actual power generation amount of the wind power generation equipment and the solar power generation equipment is smaller than the power consumption amount of the load, the energy storage battery pack is in a discharge mode;
the charging mode is as follows: and if the charged quantity is smaller than a first preset charged interval value, charging the energy storage battery pack by using a preset first current.
9. The method for controlling an off-grid integrated communication power supply system according to claim 5, further comprising, after step S104:
the environment monitor collects the environment parameters of the energy power generation equipment, the main controller and the energy storage battery pack and transmits the environment parameters to the main controller, the main controller analyzes and compares the preset conditions with the environment parameters, if the environment parameters exceed the range of the preset conditions, the early warning device identifies the abnormity and/or the fault of the off-grid integrated communication power supply system, controls the abnormal and/or the fault of the energy power generation equipment to be closed, and controls the energy storage battery pack to be opened.
10. A computer readable medium comprising a computer readable program for providing a user input interface to implement the method of controlling an off-grid integrated communication power system according to any one of claims 5 to 9 when executed on an electronic device.
CN202010715292.2A 2020-07-23 2020-07-23 Off-grid integrated communication power supply system, control method and storage medium Pending CN111799880A (en)

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