CN108306314A - A kind of monitoring of low-voltage and threephase load balance automatic adjustment system - Google Patents
A kind of monitoring of low-voltage and threephase load balance automatic adjustment system Download PDFInfo
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- CN108306314A CN108306314A CN201711485784.1A CN201711485784A CN108306314A CN 108306314 A CN108306314 A CN 108306314A CN 201711485784 A CN201711485784 A CN 201711485784A CN 108306314 A CN108306314 A CN 108306314A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 221
- 230000009466 transformation Effects 0.000 claims description 134
- 230000005611 electricity Effects 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
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Classifications
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- H02J13/0075—
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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
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S40/126—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 using wireless data transmission
Abstract
The invention discloses a kind of monitorings of low-voltage and threephase load to balance automatic adjustment system, concentrator carries out operational analysis to the parameters of electric power data of parameters of electric power data and the terminal load of branch's transformer output end, optimum choice goes out partial phase change switch, suitable separate switching is carried out to phase-change switch by automatic mode, air switch is always without separate switching, adjust automatically, reach low-voltage distribution side and is automatically held in equilibrium state, reduce circuit, branch's transformer loss, increase the service life of circuit and branch's transformer, improves power supply quality；Concentrator can also be communicated the parameters of electric power data that the parameters of electric power data of branch's transformer output end and terminal load by power carrier wireless network with central computer, achieve the effect that electric power monitoring and long-range optimal control, reduce cumbersome working link in adjustment line load balance, reduce working strength, staff need to only carry out system operatio and carry out Load adjustment, greatly improve working efficiency.
Description
Technical field
The present invention relates to electric power threephase load balanced adjustment technical field, espespecially a kind of low-voltage monitoring and threephase load are flat
Weigh automatic adjustment system.
Background technology
In today of science rapid development and epoch progress, in modern power network system, a large amount of impact out-of-balance load institutes
Caused by three-phase imbalance problem larger harm is generated to the safe and stable operation of power distribution network, seriously affected the power supply of system
Power quality, China's low-voltage network substantially all by the way of three-phase four-wire system distribution, almost all of distribution transforming all ... 60% arrives
70%, some, which is even beaten, reaches 70% or more, has seriously affected the regular supply of electric energy, three-phase imbalance phenomenon, residential area,
Also extremely common in all low-voltage networks such as industrial and mineral, enterprise, three-phase load in dynamic change, leads to circuit and transformation at any time
The loss of device increases, and power consumption efficiency declines, and zero-sequence current increases, and shortens the service life of equipment, electric power will be caused when serious
Equipment cisco unity malfunction, or even burn system.Threephase load imbalance will increase the loss of circuit and transformer, and tradition is thought
The solution that road proposes is mainly the following：First, asymmetric load dispersion is connected on different supply terminals when arranging net,
To reduce the problem of concentrating connection rice that degree of unbalancedness is caused to severely exceed.Second is that using the methods such as commutation are intersected by asymmetric load
It is reasonably allocated to each phase, makes its equilibrating as possible；Third, the capacity of short circuit of high load access point, such as changes network or improves confession
Piezoelectric voltage rank bears the ability of unbalanced load with enhancing system；Fourth, installing reactive-load compensation balancing device additional；First three is main
By being manually balanced, it is with power factor that can only maintain the relative equilibrium on certain timing node, reactive-load compensation balancing device
With reactive power according to being controlled, this mode can only make dispensing end three-phase equilibrium.Slightly reduce transformer loss.Nothing
Method improves the loss problem on low-voltage side outlet.The three-phase imbalance problem of user terminal is not eliminated, it can thus be appreciated that.Drop
Low tri-phase unbalance factor reduces line loss caused by three-phase imbalance and the problems such as transformer loss, improves power quality, tool
It is significant.
Invention content
The purpose of the present invention is to provide a kind of monitorings of low-voltage and threephase load to balance automatic adjustment system.
To achieve the goals above, technical solution of the invention is：A kind of monitoring of low-voltage and threephase load balance
Automatic adjustment system include acquisition module 1, the communication module 1 provided with radio-cell, collector 11, collector 12 ..., adopt
Storage 1X, communication module 11, communication module 12 ..., communication module 1X, phase transformation switch 11, air switch 12 ..., phase transformation
Switch 1X, concentrator 1, acquisition module 2, the communication module 2 provided with radio-cell, collector 21, collector 22 ..., adopt
Storage 2Y, communication module 21, communication module 22 ..., communication module 2Y, phase transformation switch 21, air switch 22 ..., phase transformation
Switch 2Y, concentrator 2 ..., acquisition module M, concentrator M, the communication module M provided with radio-cell, collector M1, acquisition
Device M2 ..., collector MZ, communication module M1, communication module M2 ..., communication module MZ, phase transformation switch M1, air switch
M2 ..., phase transformation switch MZ, wireless module, data server, front end processor, central computer；Wherein, described X, Y, Z and M
Be the other side it is independent be more than 3 integer.
Concentrator 1 is electrically connected with communication module 1, acquisition module 1 respectively, concentrator 1 also respectively with including phase transformation
Phase transformation switch including switch 11 and phase transformation switch 1X is electrically connected, and collector 11 is electrically connected with communication module 11
It connects, collector 12 is electrically connected with communication module 12 ... ..., and collector 1X is electrically connected with communication module 1X, is led to
News module 1 respectively with communication module 11, communication module 12 ..., communication module 1X carry out electrical network and connect, communication module 1
Radio-cell network connection is carried out by wireless network and wireless module, concentrator 2 respectively with communication module 2, acquisition module 2
It is electrically connected, concentrator 2 also carries out with the phase transformation switch including phase transformation switch 21 and phase transformation switch 2Y electrical respectively
Connection, collector 21 are electrically connected with communication module 21, and collector 22 is electrically connected with communication module 22 ... ...,
Collector 2Y is electrically connected with communication module 2Y, communication module 2 respectively with communication module 21, communication module 22 ..., it is logical
It interrogates module 2Y and carries out electrical network connection, the radio-cell of communication module 2 carries out network company by wireless network and wireless module
Connect ... ..., concentrator M is electrically connected with communication module M, acquisition module M respectively, concentrator M also respectively with including phase transformation
Phase transformation switch including switch M1 and phase transformation switch MX is electrically connected, and collector M1 is electrically connected with communication module M1
It connects, collector M2 is electrically connected with communication module M2 ... ..., and collector MZ is electrically connected with communication module MZ, is led to
News module M respectively with communication module M1, communication module M2 ..., communication module MZ carry out electrical network and connect, communication module M
Radio-cell network connection is carried out by wireless network and wireless module, the radio-cell of communication module M passes through wireless network
Carry out network connection with wireless module, wireless module is electrically connected with data server, data server and front end processor into
Row electrical connection, front end processor are electrically connected with central computer.
Low-pressure side of the acquisition module 1 also respectively with the 1 three-phase and four-line output of branch transformer is electrically connected, acquisition module 2
Be electrically connected with the low-pressure side of 2 three-phase and four-line output of branch transformer ... ..., acquisition module M also respectively with branch transformer M
The low-pressure side of three-phase and four-line output is electrically connected, and branch's transformer 1 carries out three-phase with terminal 11, terminal 12 to terminal 1X respectively
Four lines are electrically connected, and branch's transformer 2 carries out three-phase and four-line with terminal 21, terminal 22 to terminal 2Y respectively and is electrically connected ... ..., branch
Transformer M carries out three-phase and four-line with terminal M1, terminal M2 to terminal MZ respectively and is electrically connected, branch's transformer 1, branch's transformer 2
To branch transformer M with total transformer carry out three-phase and four-line be electrically connected, terminal 11 respectively with collector 11 and phase transformation switch 11
Be electrically connected, terminal 12 is electrically connected with collector 12 and air switch 12 respectively ... ..., terminal 1X respectively with collector
1X and phase transformation switch 1X are electrically connected, phase transformation switch 11, air switch 12 ..., air switch 1X-1（It is not arranged in attached drawing 1
Go out）, phase transformation switch 1X be electrically connected with load, terminal 21 is electrically connected with collector 21 and phase transformation switch 21 respectively,
Terminal 22 is electrically connected with collector 22 and air switch 22 respectively ... ..., and terminal 2Y is opened with collector 2Y and phase transformation respectively
Close 2Y be electrically connected, phase transformation switch 21, air switch 22 ..., air switch 2Y-1（It is unlisted in attached drawing 1）, phase transformation opens
It closes 2Y to be electrically connected with load ... ..., terminal M1 is electrically connected with collector M1 and phase transformation switch M1 respectively, terminal
M2 is electrically connected with collector M2 and air switch M2 respectively ... ..., terminal MZ respectively with collector MZ and phase transformation switch MZ
Be electrically connected, phase transformation switch M1, air switch M2 ... air switch MZ-1（It is unlisted in attached drawing 1）, phase transformation switch MZ it is equal
It is electrically connected with load.
Further, the collector 11, collector 12 ..., collector 1X, collector 21, collector
22 ..., collector 2Y, collector M1, collector M2 ..., collector MZ circuit structures having the same；Namely：It is described
Collector 11, collector 12 to collector 1X, collector 21, collector 22 to collector 2Y, collector M1, collector M2 extremely
Collector MZ all has identical structure；
The concentrator 1, concentrator 2 ..., concentrator M circuit structures having the same；Namely：The concentrator 1,
Concentrator 2 all has identical circuit structure to concentrator M；
The communication module 11, communication module 12 ..., communication module 1X；Communication module 21, communication module 22 ..., it is logical
News module 2Y, communication module M1, communication module M2 ..., communication module MZ all have identical circuit structure；Namely：It is described
Communication module 11, communication module 12 to communication module 1X；Communication module 21, communication module 22 to communication module 2Y, communication mould
Block M1, communication module M2 all have identical structure to communication module MZ；
The acquisition module 1, acquisition module 2 ..., acquisition module M circuit structures having the same, namely：Described adopts
Collection module 1, acquisition module 2 to acquisition module M all have identical circuit structure；
The phase transformation switch 11, air switch 12 ..., phase transformation switch 1X, including phase transformation switch 11 and phase transformation switch 1X exist
Interior phase transformation number of switches and the air switch quantity including air switch 12, the two ratio of number are 1.5 ︰, 1~3 ︰ 1；
The phase transformation switch 21, air switch 22 ..., phase transformation switch 2Y, including phase transformation switch 21 and phase transformation switch 2Y exist
Interior phase transformation number of switches and the air switch quantity including air switch 22, the two ratio of number are 1.5 ︰, 1~3 ︰ 1；
The phase transformation switch M1, air switch M2 ..., phase transformation switch MZ, including phase transformation switch M1 and phase transformation switch MZ exist
Interior phase transformation number of switches and the air switch quantity including air switch M2, the two ratio of number are 1.5 ︰, 1~3 ︰ 1；
The terminal 11, terminal 12 to terminal 1X, terminal 21, terminal 22 to terminal 2Y, terminal M1, terminal M2 are equal to terminal MZ
It is power distribution cabinet or distribution box.
The present invention operation principle be：Collector 11 acquires the load electric parameter of terminal 11 in real time, acquisition
Voltage and current information is sent to communication module 1 by communication module 11 with wired or wireless communication modes, and collector 12 is right
The load electric parameter of terminal 12 is acquired in real time, and the voltage and current information of acquisition is by communication module 12 with wired or nothing
The communication modes of line are sent to communication module 1 ... ..., and collector 1X acquires the load electric parameter of terminal 1X in real time,
The voltage and current information of acquisition is sent to communication module 1 by communication module 1X with wired or wireless communication modes, acquisition
Module 1 acquires the three-phase and four-line parameters of electric power of 1 output end of branch's transformer in real time, voltage, electric current and the temperature of acquisition
Information transmitted in parallel to concentrator 1, concentrator 1 passes through the three-phase and four-line electric parameter acquisition number to 1 output end of branch's transformer
According to, the loads of the load electric parameter acquisition data of terminal 11, the load electric parameter acquisition data of terminal 12 to terminal 1X electricity
Force parameter gathered data carries out operational analysis, and optimum choice goes out suitable partial phase change switch, and concentrator 1 is right in a wired manner
Selected phase transformation switch assigns instruction, selected phase transformation switching to suitable separate, make branch's transformer 1 with electricity output balance
Degree reaches setting index, and low-voltage distribution side is made to be automatically held in equilibrium state；Load electric parameter of the collector 21 to terminal 21
It is acquired in real time, the voltage and current information of acquisition is sent to by communication module 21 with wired or wireless communication modes logical
Module 2 is interrogated, collector 22 acquires the load electric parameter of terminal 22 in real time, and the voltage and current information of acquisition, which passes through, leads to
News module 22 is sent to communication module 2 with wired or wireless communication modes ... ..., load electrics of the collector 2Y to terminal 2Y
Parameter is acquired in real time, and the voltage and current information of acquisition is transmitted by communication module 2Y with wired or wireless communication modes
To communication module 2, acquisition module 2 acquires the three-phase and four-line parameters of electric power of 2 output end of branch's transformer in real time, acquisition
Voltage, electric current and temperature information pass through the three-phase four to 2 output end of branch's transformer with transmitted in parallel to concentrator 2, concentrator 2
Line electric parameter acquisition data, the load electric parameter acquisition data of terminal 21, the load electric parameter acquisition data of terminal 22
Load electric parameter acquisition data to terminal 2Y carry out operational analysis, and optimum choice goes out suitable partial phase change switch, concentrates
Device 2 assigns instruction to selected phase transformation switch in a wired manner, and selected phase transformation switching makes branch's transformation to suitably separate
Device 2 reaches setting index with the electricity output degree of balance, and low-voltage distribution side is made to be automatically held in equilibrium state；Collector M1 is to terminal
The load electric parameter of M1 is acquired in real time, and the voltage and current information of acquisition is by communication module M1 with wired or wireless
Communication modes are sent to communication module M, and collector M2 acquires the load electric parameter of terminal M2 in real time, the voltage of acquisition
Communication module M ... ..., MZ pairs of collector are sent to wired or wireless communication modes by communication module M2 with current information
The load electric parameter of terminal MZ is acquired in real time, and the voltage and current information of acquisition is by communication module MZ with wired or nothing
The communication modes of line are sent to communication module M, acquisition module M to the three-phase and four-line parameters of electric power of branch's transformer M output ends into
Row acquisition in real time, with transmitted in parallel to concentrator M, concentrator M passes through to branch's transformation voltage, electric current and the temperature information of acquisition
The load electric of the three-phase and four-line parameters of electric power data of device M output ends, the load electric parameter acquisition data of terminal M1, terminal M2
The load electric parameter acquisition data of parameter acquisition data to terminal MZ carry out operational analysis, and optimum choice goes out suitable part phase
Become switch, concentrator M assigns instruction, selected phase transformation switching to suitable phase to selected phase transformation switch in a wired manner
Not, make branch transformer M's to reach setting index with the electricity output degree of balance, low-voltage distribution side is made to be automatically held in equilibrium state；
So, it can be achieved that the threephase load to each branch's transformer output end balances adjust automatically.Concentrator 1 also passes through communication module 1
Radio-cell, by the three-phase and four-line electric parameter acquisition data of 1 output end of branch's transformer, the load electric parameter of terminal 11
Gathered data, the load electric parameter acquisition data of the load electric parameter acquisition data of terminal 12 to terminal 1X are with power carrier
The mode of GPRS wireless networks is communicated with wireless module, and concentrator 2 is also by the radio-cell of communication module M, by branch
The three-phase and four-line electric parameter acquisition data of 2 output end of transformer, the load electric parameter acquisition data of terminal 21, terminal 22
Load electric parameter acquisition data to terminal 2Y load electric parameter acquisition data in a manner of power carrier wireless network with
Wireless module is communicated, and concentrator M is also by the radio-cell of communication module M, by the three-phase and four-line electricity of transformer M output ends
Force parameter gathered data, the load electric parameter acquisition data of terminal M1, the load electric parameter acquisition data of terminal M2 to end
The load electric parameter acquisition data of end MZ are communicated in a manner of power carrier wireless network with wireless module, wireless module
Again by above-mentioned data transmission to data server, and then it is sent to front end processor and central computer, for front end processor and center
Computer monitors system low-voltage, meanwhile, the adjust instruction that central computer and/or front end processor issue is logical through data server
It crosses wireless module and is transmitted to corresponding concentrator in a manner of power carrier wireless network, corresponding concentrator is again with wired side
Formula assigns instruction to corresponding phase transformation switch, and corresponding phase transformation switching, can be defeated to branch's transformer to suitably separate
Go out low voltage side and the carry out electric power monitoring of threephase load, and long-range optimal control may be implemented.
The beneficial effects of the invention are as follows：Concentrator loads the parameters of electric power data and terminal of branch's transformer output end
Parameters of electric power data carry out operational analysis, and optimum choice goes out partial phase change switch, are carried out to phase-change switch by automatic mode
Suitable separate switching, air switch is always without separate switching, adjust automatically, reach low-voltage distribution side be automatically held in it is flat
Weighing apparatus state reduces circuit, branch's transformer loss, increases the service life of circuit and branch's transformer, improves power supply quality；Collection
Middle device can also be carried the parameters of electric power data that the parameters of electric power data of branch's transformer output end and terminal load by electric power
Wave wireless network is communicated with central computer, achievees the effect that electric power monitoring and long-range optimal control, is reduced in adjustment line
Cumbersome working link in the load balance of road reduces working strength, and staff need to only carry out system operatio and carry out Load adjustment, greatly
Width improves working efficiency.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Attached drawing 1 is the principle of the present invention block diagram.
Specific implementation mode
Shown in attached drawing 1, a kind of low-voltage monitoring of the present invention and threephase load balance automatic adjustment system include acquisition mould
The communication module 1 of block 1, acquisition module 2 to acquisition module M, provided with radio-cell, the communication module 2 provided with radio-cell
To communication module M, concentrator 1, concentrator 2 to concentrator M, collector 11, the collector 12 to acquisition for being provided with radio-cell
Device 1X, collector 21, collector 22 to collector 2Y, collector M1, collector M2 to collector MZ, communication module 11, communication
Module 12 to communication module 1X, communication module 21, communication module 22 to communication module 2Y, communication module M1, communication module M2 extremely
Communication module MZ, phase transformation switch 11, air switch 12 to phase transformation switch 1X, phase transformation switch 21, air switch 22 to phase transformation switch
2Y, phase transformation switch M1, air switch M2 to phase transformation switch MZ, wireless module, data server, front end processor, central computer；Its
In, described X, Y, Z and M be the other side it is independent be more than 3 integer.
Concentrator 1 is electrically connected with communication module 1, acquisition module 1 respectively, concentrator 1 also respectively with including phase transformation
Phase transformation switch including switch 11 and phase transformation switch 1X is electrically connected, and collector 11 is electrically connected with communication module 11
It connects, collector 12 is electrically connected with communication module 12 ... ..., and collector 1X is electrically connected with communication module 1X, is led to
News module 1 carries out electrical network with communication module 11, communication module 12 to communication module 1X respectively and connect, the nothing of communication module 1
Line unit carries out network connection by wireless network and wireless module, and concentrator 2 is carried out with communication module 2, acquisition module 2 respectively
Electrical connection, concentrator 2 are also electrically connected with the phase transformation switch including phase transformation switch 21 and phase transformation switch 2Y respectively,
Collector 21 is electrically connected with communication module 21, and collector 22 is electrically connected with communication module 22 ... ..., collector
2Y is electrically connected with communication module 2Y, communication module 2 respectively with communication module 21, communication module 22 to communication module 2Y into
Row electrical network connects, and the radio-cell of communication module 2 carries out network connection ... ..., collection by wireless network and wireless module
Middle device M is electrically connected with communication module M, acquisition module M respectively, concentrator M also respectively with including phase transformation switch M1 and phase
Phase transformation switch including change switch MX is electrically connected, and collector M1 is electrically connected with communication module M1, collector M2
It is electrically connected with communication module M2 ... ..., collector MZ is electrically connected with communication module MZ, communication module M difference
Electrical network is carried out with communication module M1, communication module M2 to communication module MZ to connect, the radio-cell of communication module M passes through nothing
Gauze network carries out network connection with wireless module, and the radio-cell of communication module M carries out net by wireless network and wireless module
Network connects, and wireless module is electrically connected with data server, and data server is electrically connected with front end processor, front end processor
It is electrically connected with central computer.
Low-pressure side of the acquisition module 1 also respectively with the 1 three-phase and four-line output of branch transformer is electrically connected, acquisition module 2
Be electrically connected with the low-pressure side of 2 three-phase and four-line output of branch transformer ... ..., acquisition module M also respectively with branch transformer M
The low-pressure side of three-phase and four-line output is electrically connected, and branch's transformer 1 carries out three-phase with terminal 11, terminal 12 to terminal 1X respectively
Four lines are electrically connected, and branch's transformer 2 carries out three-phase and four-line with terminal 21, terminal 22 to terminal 2Y respectively and is electrically connected ... ..., branch
Transformer M carries out three-phase and four-line with terminal M1, terminal M2 to terminal MZ respectively and is electrically connected, branch's transformer 1, branch's transformer 2
To branch transformer M with total transformer carry out three-phase and four-line be electrically connected, terminal 11 respectively with collector 11 and phase transformation switch 11
Be electrically connected, terminal 12 is electrically connected with collector 12 and air switch 12 respectively ... ..., terminal 1X respectively with collector
1X and phase transformation switch 1X are electrically connected, phase transformation switch 11, air switch 12 ..., air switch 1X-1（It is not arranged in attached drawing 1
Go out）, phase transformation switch 1X be electrically connected with load, terminal 21 is electrically connected with collector 21 and phase transformation switch 21 respectively,
Terminal 22 is electrically connected with collector 22 and air switch 22 respectively ... ..., and terminal 2Y is opened with collector 2Y and phase transformation respectively
Close 2Y be electrically connected, phase transformation switch 21, air switch 22 ..., air switch 2Y-1（It is unlisted in attached drawing 1）, phase transformation opens
It closes 2Y to be electrically connected with load ... ..., terminal M1 is electrically connected with collector M1 and phase transformation switch M1 respectively, terminal
M2 is electrically connected with collector M2 and air switch M2 respectively ... ..., terminal MZ respectively with collector MZ and phase transformation switch MZ
Be electrically connected, phase transformation switch M1, air switch M2 ... air switch MZ-1（It is unlisted in attached drawing 1）, phase transformation switch MZ it is equal
It is electrically connected with load.
In above-mentioned specific implementation mode：
Phase transformation number of switches including phase transformation switch 11 and phase transformation switch 1X is opened with the air including air switch 12
Quantity is closed, the two ratio of number is 2 ︰ 1；
Phase transformation number of switches including phase transformation switch 21 and phase transformation switch 2Y is opened with the air including air switch 22
Quantity is closed, the two ratio of number is 2 ︰ 1；
Phase transformation number of switches including phase transformation switch M1 and phase transformation switch MZ is opened with the air including air switch M2
Quantity is closed, the two ratio of number is 2 ︰ 1；
Further, the concentrator 1, concentrator 2 to concentrator M, which are selected, is based on monolithic processor controlled concentrator, preferably
, microcontroller selects the microcontroller of model MSP430F449；
The collector select collector 11, collector 12 to collector 1X, collector 21, collector 22 to collector 2Y,
Collector M1, collector M2 select the voltage signal and current signal collector of model KT2 to collector MZ；
Described includes phase transformation switch 11, phase transformation switch 1X, phase transformation switch 21, phase transformation switch 2Y, phase transformation switch M1, phase transformation switch
Phase transformation switch including MZ selects the phase transformation switch of model SZ-HXZ-100 or XQ-200；
The acquisition module 1, acquisition module 2 to acquisition module M select voltage signal, the current signal of model WY-01
And temperature and humidity acquisition module；
The communication module 1 provided with radio-cell, the communication module 2 provided with radio-cell are to provided with radio-cell
Communication module M select the power carrier communication module provided with GPRS radio-cells, it is preferred that GPRS radio-cells are selected
The modular unit of model EM310；Power carrier communication module selects the power carrier communication mould based on II chips of PLCI38-
Block；
The communication module 11, communication module 12 to communication module 1X, communication module 21, communication module 22 to communication module
2Y, communication module M1, communication module M2 to communication module MZ select the power carrier communication mould based on II chips of PLCI38-
Block.
When work：Collector 11 acquires the load electric parameter of terminal 11 in real time, the voltage and current letter of acquisition
Breath is sent to communication module 1, load of the collector 12 to terminal 12 by communication module 11 with wired or wireless communication modes
Parameters of electric power is acquired in real time, and the voltage and current information of acquisition is by communication module 12 with wired or wireless communication modes
Be sent to communication module 1 ... ..., collector 1X acquires the load electric parameter of terminal 1X in real time, the voltage of acquisition and
Current information is sent to communication module 1 by communication module 1X with wired or wireless communication modes, and acquisition module 1 becomes branch
The three-phase and four-line parameters of electric power of 1 output end of depressor is acquired in real time, and voltage, electric current and the temperature information transmitted in parallel of acquisition are extremely
Concentrator 1, the load that concentrator 1 passes through three-phase and four-line electric parameter acquisition data, terminal 11 to 1 output end of branch's transformer
Electric parameter acquisition data, the load electric parameter acquisition data of the load electric parameter acquisition data of terminal 12 to terminal 1X into
Row operational analysis, optimum choice go out suitable partial phase change switch, and concentrator 1 in a wired manner assigns selected phase transformation switch
Instruction, for selected phase transformation switching to suitable separate, make branch's transformer 1 reaches setting index with the electricity output degree of balance,
Low-voltage distribution side is set to be automatically held in equilibrium state；Collector 21 acquires the load electric parameter of terminal 21 in real time, adopts
The voltage and current information of collection is sent to communication module 2, collector by communication module 21 with wired or wireless communication modes
The load electric parameter of 22 pairs of terminals 22 is acquired in real time, and the voltage and current information of acquisition is by communication module 22 with wired
Or wireless communication modes are sent to communication module 2 ... ..., and collector 2Y adopts the load electric parameter of terminal 2Y in real time
Collection, the voltage and current information of acquisition are sent to communication module 2 with wired or wireless communication modes by communication module 2Y, adopt
Collection module 2 acquires the three-phase and four-line parameters of electric power of 2 output end of branch's transformer in real time, voltage, electric current and the temperature of acquisition
Information is spent with transmitted in parallel to concentrator 2, and concentrator 2 is adopted by the three-phase and four-line parameters of electric power to 2 output end of branch's transformer
Collect data, the load electric parameter acquisition data of terminal 21, the load electric parameter acquisition data of terminal 22 to terminal 2Y it is negative
It carries electric parameter acquisition data and carries out operational analysis, optimum choice goes out suitable partial phase change switch, and concentrator 2 is with wired side
Formula assigns instruction to selected phase transformation switch, selected phase transformation switching to suitable separate, make branch's transformer 2 with electricity output
The degree of balance reaches setting index, and low-voltage distribution side is made to be automatically held in equilibrium state；Load electrics of the collector M1 to terminal M1
Parameter is acquired in real time, and the voltage and current information of acquisition is transmitted by communication module M1 with wired or wireless communication modes
To communication module M, collector M2 acquires the load electric parameter of terminal M2 in real time, and the voltage and current information of acquisition is logical
It crosses communication module M2 and is sent to communication module M ... ..., loads of the collector MZ to terminal MZ with wired or wireless communication modes
Parameters of electric power is acquired in real time, and the voltage and current information of acquisition is by communication module MZ with wired or wireless communication modes
It is sent to communication module M, acquisition module M acquires the three-phase and four-line parameters of electric power of branch's transformer M output ends, adopts in real time
Voltage, electric current and the temperature information of collection pass through three to branch's transformer M output ends with transmitted in parallel to concentrator M, concentrator M
Four line parameters of electric power data of phase, the load electric parameter acquisition data of terminal M1, the load electric parameter acquisition data of terminal M2
Load electric parameter acquisition data to terminal MZ carry out operational analysis, and optimum choice goes out suitable partial phase change switch, concentrates
Device M assigns instruction to selected phase transformation switch in a wired manner, and selected phase transformation switching makes branch's transformation to suitably separate
Device M's reaches setting index with the electricity output degree of balance, and low-voltage distribution side is made to be automatically held in equilibrium state；So, it can be achieved that right
The threephase load of each branch's transformer output end balances adjust automatically.Concentrator 1, will also by the radio-cell of communication module 1
The three-phase and four-line electric parameter acquisition data of 1 output end of branch's transformer, load electric parameter acquisition data, the terminal of terminal 11
12 load electric parameter acquisition data to terminal 1X load electric parameter acquisition data with power carrier GPRS wireless networks
Mode communicated with wireless module, concentrator 2 is also by the radio-cell of communication module M, by 2 output end of branch's transformer
Three-phase and four-line electric parameter acquisition data, the load electric parameter acquisition data of terminal 21, the load electric parameter of terminal 22
Gathered data to terminal 2Y load electric parameter acquisition data in a manner of power carrier GPRS wireless networks and wireless module
It is communicated, also by the radio-cell of communication module M, the three-phase and four-line parameters of electric power of transformer M output ends is adopted by concentrator M
Collect data, the load electric parameter acquisition data of terminal M1, the load electric parameter acquisition data of terminal M2 to terminal MZ it is negative
It carries electric parameter acquisition data to be communicated with wireless module in a manner of power carrier GPRS wireless networks, wireless module again will
Above-mentioned data transmission is sent to front end processor and central computer to data server, for front end processor and center calculation
Machine monitors system low-voltage, meanwhile, the adjust instruction that central computer and/or front end processor issue passes through nothing through data server
Wire module is transmitted to corresponding concentrator in a manner of power carrier GPRS wireless networks, and corresponding concentrator is again with wired side
Formula assigns instruction to corresponding phase transformation switch, and corresponding phase transformation switching, can be defeated to branch's transformer to suitably separate
Go out low voltage side and the carry out electric power monitoring of threephase load, and long-range optimal control may be implemented.
The above, embodiment is only that the preferred embodiment of the present invention is described, not to the present invention's
Range is defined, under the premise of not departing from the spirit of the technology of the present invention, skill of this field engineers and technicians to the present invention
The various modifications and improvement that art scheme is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (3)
1. a kind of low-voltage monitoring and threephase load balance automatic adjustment system, it is characterized in that：The low-voltage monitoring and three
It includes acquisition module 1, the communication module 1 provided with radio-cell, collector 11, collector that phase load, which balances automatic adjustment system,
12 ..., collector 1X, communication module 11, communication module 12 ..., communication module 1X, phase transformation switch 11, air switch
12 ..., phase transformation switch 1X, concentrator 1, acquisition module 2, the communication module 2 provided with radio-cell, collector 21, acquisition
Device 22 ..., collector 2Y, communication module 21, communication module 22 ..., communication module 2Y, phase transformation switch 21, air switch
22 ..., phase transformation switch 2Y, concentrator 2 ..., acquisition module M, concentrator M, the communication module M provided with radio-cell,
Collector M1, collector M2 ..., collector MZ, communication module M1, communication module M2 ..., communication module MZ, phase transformation open
Close M1, air switch M2 ..., phase transformation switch MZ, wireless module, data server, front end processor, central computer；Wherein, institute
X, Y, Z and the M stated be the other side it is independent be more than 3 integer；Concentrator 1 carries out electricity with communication module 1, acquisition module 1 respectively
Gas connects, and concentrator 1 is also electrically connected with the phase transformation switch including phase transformation switch 11 and phase transformation switch 1X respectively, is adopted
Storage 11 is electrically connected with communication module 11, and collector 12 is electrically connected with communication module 12 ... ..., collector 1X
Be electrically connected with communication module 1X, communication module 1 respectively with communication module 11, communication module 12 ..., communication module 1X
Electrical network connection is carried out, the radio-cell of communication module 1 carries out network connection, concentrator by wireless network and wireless module
2 are electrically connected with communication module 2, acquisition module 2 respectively, and concentrator 2 is also opened with including phase transformation switch 21 and phase transformation respectively
Close 2Y including phase transformation switch is electrically connected, collector 21 is electrically connected with communication module 21, collector 22 with lead to
News module 22 be electrically connected ... ..., collector 2Y is electrically connected with communication module 2Y, communication module 2 respectively with lead to
Interrogate module 21, communication module 22 ..., communication module 2Y carry out electrical network connection, the radio-cell of communication module 2 passes through nothing
Gauze network carries out network connection ... ... with wireless module, and concentrator M is electrically connected with communication module M, acquisition module M respectively
It connects, concentrator M is also electrically connected with the phase transformation switch including phase transformation switch M1 and phase transformation switch MX respectively, collector
M1 is electrically connected with communication module M1, and collector M2 is electrically connected with communication module M2 ... ..., collector MZ with it is logical
News module MZ is electrically connected, communication module M respectively with communication module M1, communication module M2 ..., communication module MZ carries out
Electrical network connects, and the radio-cell of communication module M carries out network connection, communication module M by wireless network and wireless module
Radio-cell network connection is carried out by wireless network and wireless module, wireless module is electrically connected with data server
It connects, data server is electrically connected with front end processor, and front end processor is electrically connected with central computer.
2. a kind of low-voltage monitoring according to claim 1 and threephase load balance automatic adjustment system, it is characterized in that：Institute
The collector 11 stated, collector 12 ..., collector 1X, collector 21, collector 22 ..., collector 2Y, collector M1,
Collector M2 ..., collector MZ circuit structures having the same；Namely：The collector 11, collector 12 to collector
1X, collector 21, collector 22 to collector 2Y, collector M1, collector M2 to collector MZ all have identical structure；
The concentrator 1, concentrator 2 ..., concentrator M circuit structures having the same；Namely：The concentrator 1,
Concentrator 2 all has identical circuit structure to concentrator M；
The communication module 11, communication module 12 ..., communication module 1X；Communication module 21, communication module 22 ..., it is logical
News module 2Y, communication module M1, communication module M2 ..., communication module MZ all have identical circuit structure；Namely：It is described
Communication module 11, communication module 12 to communication module 1X；Communication module 21, communication module 22 to communication module 2Y, communication mould
Block M1, communication module M2 all have identical structure to communication module MZ；
The acquisition module 1, acquisition module 2 ..., acquisition module M circuit structures having the same, namely：Described adopts
Collection module 1, acquisition module 2 to acquisition module M all have identical circuit structure.
3. a kind of low-voltage monitoring according to claim 1 and threephase load balance automatic adjustment system, it is characterized in that：Institute
The phase transformation switch 11 stated, air switch 12 ..., phase transformation switch 1X, the phase including phase transformation switch 11 and phase transformation switch 1X
Become number of switches and the air switch quantity including air switch 12, the two ratio of number is 1.5 ︰, 1~3 ︰ 1；
The phase transformation switch 21, air switch 22 ..., phase transformation switch 2Y, including phase transformation switch 21 and phase transformation switch 2Y exist
Interior phase transformation number of switches and the air switch quantity including air switch 22, the two ratio of number are 1.5 ︰, 1~3 ︰ 1；
The phase transformation switch M1, air switch M2 ..., phase transformation switch MZ, including phase transformation switch M1 and phase transformation switch MZ exist
Interior phase transformation number of switches and the air switch quantity including air switch M2, the two ratio of number are 1.5 ︰, 1~3 ︰ 1.
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| CN201711485784.1A CN108306314A (en) | 2017-12-30 | 2017-12-30 | A kind of monitoring of low-voltage and threephase load balance automatic adjustment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115579883A (en) * | 2022-11-04 | 2023-01-06 | 北京国电通网络技术有限公司 | Circuit layout information generation method based on space load characteristics |
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| US20170093161A1 (en) * | 2014-03-07 | 2017-03-30 | The Regents Of The University Of California | Method and system for dynamic intelligent load balancing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115579883A (en) * | 2022-11-04 | 2023-01-06 | 北京国电通网络技术有限公司 | Circuit layout information generation method based on space load characteristics |
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