CN102195295A - Wind-solar-fuel storage battery hybrid grid-connected and off-grid dual-purpose system - Google Patents
Wind-solar-fuel storage battery hybrid grid-connected and off-grid dual-purpose system Download PDFInfo
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- CN102195295A CN102195295A CN2010101221696A CN201010122169A CN102195295A CN 102195295 A CN102195295 A CN 102195295A CN 2010101221696 A CN2010101221696 A CN 2010101221696A CN 201010122169 A CN201010122169 A CN 201010122169A CN 102195295 A CN102195295 A CN 102195295A
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- 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
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Abstract
The invention relates to a power-supply system, in particular relates to a wind-solar-diesel-driven storage battery hybrid grid-connected and off-grid dual-purpose system, comprising a wind power generating system, a solar power generating system, a diesel engine generating system, an off-grid inverter system, a grid-connected inverter system, a storage system and a control system, wherein the wind power generating system and the solar power generating system transmit current to a grid-connected inverter and the storage battery system and connected with the control system of the hybrid generating system; the diesel engine generating system is connected with the storage battery system; and the storage battery system is connected with the grid-connected inverter and an off-grid inverter and also connected with the control system of the hybrid generating system.
Description
Technical field
The present invention relates to is a kind of electric power system, relates in particular to a kind of wind, light, bavin, storage battery and mixes from the double-purpose system that is incorporated into the power networks.
Background technology
General wind-light-Chai complementation be incorporated into the power networks from the net electricity generation system be a kind of be electric energy with solar energy and wind energy transformation, get up by battery stores, and the electricity generation system that diesel engine is installed in support.Wind energy and solar energy have very strong complementarity on time and region, can remedy the unbalanced defective that single energy generating causes, make wind and solar hybrid generating system on resource, have best matching, but owing to be subjected to the influence of weather, deterioration along with global environment, it is more and more that some regional extreme weather occurs, wind energy and solar energy are very unstable, cause reduce greatly the useful life of the important carrier storage battery in the wind and solar hybrid generating system, make its premature damage, owing to could use after the particularity of storage battery must be changed, thereby increase the cost that system uses.Use native system not to be subjected to the influence of Changes in weather to carry out continual and steady power supply to greatest extent, the protection storage battery, the protection whole system prolongs its useful life, reduces cost.
Summary of the invention
The present invention seeks to overcome the deficiency of existing wind and solar hybrid generating system, provide a kind of rational in infrastructure, can obviously improve the performance of wind and solar hybrid generating system, can prolong wind and solar hybrid generating system equipment effectively again.
Solving the technical scheme that its technical problem adopts is: wind power generation system, optical energy power system, diesel power generation system, from net inversion system, grid-connected inverting system, battery system, control system seven major parts.Wind power generation system, optical energy power system transport to combining inverter and battery system to electric current by diode, and be connected with the hybrid power system control system, the diesel power generation system connects battery system, battery system connects combining inverter and from net power transformation device, and is connected with the hybrid power system control system.
Each part of system:
1, wind power generation system: with wind energy transformation is the system of electric energy.According to user's designing requirement, many typhoons power generator is formed the blower fan array, make it reach the design installed capacity, after wind-driven generator converts wind energy to three-phase alternating current, become direct current through rectifier rectification in the control cubicle, by transporting to combining inverter and storage battery behind the diode, the switching characteristic of utilizing the diode forward conducting oppositely to end, it is low excessively to prevent to work as the wind energy charging voltage, and current reflux causes device damage.Simultaneously, at the wind energy control cubicle multifunctional meter is installed and is gathered wind energy information, by RS485 communication interface and 4～20mA analog quantity information is delivered to control system, controlled system centralized control.
2, photovoltaic power generation system: be to utilize solar panel, solar energy converting become the system of electric energy.According to user's designing requirement, solar cell is formed solar battery array, reach the design installed capacity, combining inverter and storage battery are transported to by diode in the direct current that solar cell the is sent back of confluxing, at the solar energy control cubicle multifunctional meter is installed and is gathered wind energy information, by RS485 communication interface and 4～20mA analog quantity information is delivered to control system, controlled system centralized control.
3, diesel power generation system: break down or the back-up system during electricity shortage at wind-PV system.Native system is made up of two diesel generations, and power is selected according to customer requirements, the control of the controlled system of the startup of diesel engine.When the brownout of whole hybrid system, control system is sent initiating signal, diesel engine starting.The working method of diesel engine system is divided two kinds: one, can directly power to hybrid system, hybrid system was incorporated into the power networks or from when generating net, when voltage is lower than setting, control system starts small diesel engine, by rectification, incorporate inverter into wind-powered electricity generation, photoelectricity and storage battery and externally power, systems stabilisation voltage prolongs service life of equipment; Two, can directly power to hybrid system and load, hybrid system was incorporated into the power networks or from when generating net, when voltage is lower than setting, control system starts large-scale diesel engine, load is directly powered, and unnecessary electric energy is imported direct current system through over commutation, incorporates inverter into wind-powered electricity generation, photoelectricity and storage battery and externally powers, systems stabilisation voltage, the useful life of prolongation system equipment;
4, battery system: storage battery is sent out the important function that plays stored electric energy and burning voltage in the electric power system at direct current.Quantity and the series connection and the method in parallel of storage battery have been determined according to wind energy, luminous energy output voltage, storage battery is in parallel or be together in series according to desired volume and voltage, storage battery gets up electrical power storage, by the multifunctional meter Information Monitoring in the storage battery control cubicle, by the control of control system, select to be incorporated into the power networks or hybrid system to be powered from the net inverter according to the electrical power storage situation of storage battery.In the storage battery control cubicle diverter switch is housed, the user can be according to system's actual conditions and needs to the switching between net inverter or combining inverter.Storage battery control cubicle inside is made up of a plurality of wind-powered electricity generations and solar-electricity independent loop, and each independent loop charges to a group storage battery group separately, and convenient storage battery is later on changed does not influence whole electric power system when overhauling.
5, combining inverter: the wind energy combining inverter is set according to user's needs, the luminous energy combining inverter, storage battery grid-connected inverter, direct current after wind energy system, luminous energy system and storage battery converged is delivered to the inverter dc terminal, the direct current direct inverse is become high pressure feed-in electrical network, and inverter is exported the alternating current of AC380V (380V)/50HZ (60HZ) the most at last to city's electrical network and load.
6, from the net inverter: the direct current of battery system is delivered to the inverter dc terminal, and inverter is exported the alternating current of AC380V (380V)/50HZ (60HZ) the most at last to load.
7, hybrid power system control system: be the brain of complete equipment, form by control cubicle.To from the data acquisition of wind power generation system, optical energy power system, diesel power generation system and battery system, monitoring in real time, thereby control and protect.Diverter switch also is housed in the control cubicle, and the user can select to generate electricity by way of merging two or more grid systems or generate electricity from net according to the real system situation.
Beneficial effect of the present invention:
1, utilizes solar energy, wind energy, diesel engine complementation, can obtain more stable total output, effectively solve calm, no sunlight supply of electric power disruption, improve the stability and the reliability of power supply;
2, under the situation that guarantees same power supply, can significantly reduce the capacity of energy storage battery;
3, wind-powered electricity generation, photoelectricity and diesel engine reasonably designed and mate after, can ensure the custom power supply basically, need not to be equipped with other power supplys.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Among Fig. 1,1 wind power generation system, 2 photovoltaic power generation systems, 3 diesel power generation systems, 4, battery system, 5,8,9 combining inverters, 6 from the net inverter, 7 hybrid power system control system, 10 city's electrical networks, 11 loads.
Embodiment
Wind, light, bavin, it is a kind of electric power system that storage battery mixes from the double-purpose system that is incorporated into the power networks, keeping watch electric wind can electricity generation system 1, photovoltaic power generation system 2,3 generatings of diesel power generation system are by battery system 4, from net inverter 6, combining inverter 5,8,9 combine, wind power generation system 1, optical energy power system 2 transports to combining inverter 5 to electric current by diode, 8 and battery system 4, and be connected with hybrid power system control system 7, diesel power generation system 3 connects battery system 4, battery system 4 connects combining inverter 9 and from net power transformation device 6, is connected with hybrid power system control system 7 again.Provide safe, stable electric energy by the 7 automatic controls of hybrid power system control system to electrical network, load.The user can select from net or is incorporated into the power networks according to actual conditions, whether needs diesel engine work.When selecting from net work, low excessively as system voltage, diesel engine under control system control automatically generating after rectification, incorporate direct current system into, to guarantee system's power supply balance, protect storage battery to greatest extent, prolong storage battery useful life.
Claims (3)
1. a wind, light, bavin, storage battery mix from the double-purpose system that is incorporated into the power networks, and it is characterized in that: native system is by wind power generation system, optical energy power system, diesel power generation system, form from net inversion system, grid-connected inverting system, battery system, hybrid power system control system seven most of electrical connections; Wind power generation system, optical energy power system transport to combining inverter and battery system to electric current by diode, and with the hybrid power system control system, the diesel power generation system connects battery system, battery system connects combining inverter and from net power transformation device, and, be connected with the hybrid power system control system from the power transformation device.
2. wind as claimed in claim 1, light, bavin, storage battery mix from the double-purpose system that is incorporated into the power networks, it is characterized in that: wind power generation system is formed the blower fan array with many typhoons power generator, simultaneously, at the wind energy control cubicle multifunctional meter is installed and is gathered wind energy information, information is delivered to control system by RS485 communication interface and 4～20mA analog quantity.
3. wind as claimed in claim 1, light, bavin, storage battery mix from the double-purpose system that is incorporated into the power networks, it is characterized in that: the photovoltaic power generation system forms solar battery array with solar cell, simultaneously, at the solar energy control cubicle multifunctional meter is installed and is gathered wind energy information, information is delivered to control system by RS485 communication interface and 4～20mA analog quantity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101221696A CN102195295A (en) | 2010-03-11 | 2010-03-11 | Wind-solar-fuel storage battery hybrid grid-connected and off-grid dual-purpose system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101221696A CN102195295A (en) | 2010-03-11 | 2010-03-11 | Wind-solar-fuel storage battery hybrid grid-connected and off-grid dual-purpose system |
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| CN102195295A true CN102195295A (en) | 2011-09-21 |
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| CN2010101221696A Pending CN102195295A (en) | 2010-03-11 | 2010-03-11 | Wind-solar-fuel storage battery hybrid grid-connected and off-grid dual-purpose system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361343A (en) * | 2011-10-18 | 2012-02-22 | 山东省电力学校 | New energy continuous power supply system |
| CN103166248A (en) * | 2013-04-01 | 2013-06-19 | 国电联合动力技术有限公司 | Engineering configuration method of independent wind-diesel-storage micro grid system capacity |
| CN103956772A (en) * | 2014-05-08 | 2014-07-30 | 重庆京藏电气设备租赁有限公司 | Isolated network solar-wind-oil hybrid electricity generating system |
-
2010
- 2010-03-11 CN CN2010101221696A patent/CN102195295A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361343A (en) * | 2011-10-18 | 2012-02-22 | 山东省电力学校 | New energy continuous power supply system |
| CN102361343B (en) * | 2011-10-18 | 2014-04-02 | 山东省电力学校 | New energy continuous power supply system |
| CN103166248A (en) * | 2013-04-01 | 2013-06-19 | 国电联合动力技术有限公司 | Engineering configuration method of independent wind-diesel-storage micro grid system capacity |
| CN103956772A (en) * | 2014-05-08 | 2014-07-30 | 重庆京藏电气设备租赁有限公司 | Isolated network solar-wind-oil hybrid electricity generating system |
| CN103956772B (en) * | 2014-05-08 | 2015-12-02 | 重庆京藏电气设备租赁有限公司 | A kind of lonely net light wind oil hybrid power system |
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Application publication date: 20110921 |