CN108258704A - A kind of active load control method, apparatus and system - Google Patents
A kind of active load control method, apparatus and system Download PDFInfo
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- CN108258704A CN108258704A CN201810175080.2A CN201810175080A CN108258704A CN 108258704 A CN108258704 A CN 108258704A CN 201810175080 A CN201810175080 A CN 201810175080A CN 108258704 A CN108258704 A CN 108258704A
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- active load
- load control
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000009826 distribution Methods 0.000 claims abstract description 29
- 238000004458 analytical method Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims description 14
- 230000003993 interaction Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 2
- 240000002853 Nelumbo nucifera Species 0.000 claims 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241001347978 Major minor Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013440 design planning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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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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- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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 present invention relates to power electronics fields, specifically disclose a kind of active load control method, wherein, the active load control method includes：Voltage signal and current signal in acquisition distribution line in real time；The voltage signal and current signal are carried out to calculate analysis generation control signal；The control signal is sent to phase-change switch to control phase-change switch.The invention also discloses a kind of active load control device and active load control systems.Active load control method provided by the invention solves the problems, such as while effectively three-phase imbalance is solved the problems, such as, to improve the reliability of power supply by artificial phase modulation heavy workload in the prior art.
Description
Technical field
The present invention relates to power electronics field more particularly to a kind of active load control method, active load controls
Device and active load control system.
Background technology
In low-voltage network system, there are a large amount of single-phase, asymmetric, non-linear, impact loads, due to early stage power grid
Design planning inconsiderate and with rapid developments such as current new energy photovoltaic generation, electric vehicles, leads to a large amount of load electricity consumptions
A certain phase or two-phase are concentrated on, these unbalanced loads and new energy photovoltaic, the large-scale application of electric vehicle charging can make
Distribution system generates three-phase imbalance, leads to the imbalance of electric power system three-phase voltage, electric current, causes electrical network negative phase-sequence voltage and bears
Sequence electric current influences power supply quality, and then increases line loss, reduces grid supply quality.Therefore low-voltage network and rural power grids
Three-phase imbalance problem has become urgent problem to be solved in current power distribution systems.
Under normal conditions, power distribution network three-phase imbalance is solved by artificial phase modulation, but this mode is needed first to load
Power failure is operated again, and person works' amount is big, has seriously affected the power supply reliability to user, and cannot fundamentally solve
Certainly three-phase imbalance problem.
Therefore, how to realize effective adjust of three-phase load unbalance becomes those skilled in the art's technology urgently to be resolved hurrily
Problem.
Invention content
The present invention is directed at least solve one of technical problem in the prior art, a kind of active load control side is provided
Method, active load control device and active load control system, to solve the problems of the prior art.
As the first aspect of the invention, a kind of active load control method is provided, wherein, the active load control
Method includes：
Voltage signal and current signal in acquisition distribution line in real time；
The voltage signal and current signal are carried out to calculate analysis generation control signal；
The control signal is sent to phase-change switch to control phase-change switch.
Preferably, the active load control method, which is additionally included in, described counts the voltage signal and current signal
It is carried out before point counting analysis generation control signals step：
Analog-to-digital conversion is carried out to the voltage signal and the current signal, analog voltage signal and analog current signal are turned
Change digital signal into.
Preferably, the active load control method further includes：
The control signal is stored.
Preferably, the active load control method further includes：
Show the control parameter of phase-change switch and control process.
As the second aspect of the invention, a kind of active load control device is provided, wherein, the active load control
Device includes：
Acquisition module, the acquisition module is for the voltage signal and current signal in acquisition distribution line in real time；
Computation analysis module, the computation analysis module are used to that the voltage signal and current signal to be carried out to calculate analysis generation
Control signal；
Communication module, the communication module are used to the control signal being sent to phase-change switch to control phase-change switch
System.
Preferably, the active load control device further includes analog-digital converter, and the analog-digital converter is used for described
Voltage signal and the current signal carry out analog-to-digital conversion, and analog voltage signal and analog current signal are converted into digital letter
Number.
Preferably, the active load control device further includes storage unit, and the storage unit is used for the control
Signal is stored.
Preferably, the active load control device further includes human-computer interaction interface and ARM, the human-computer interaction interface and
The ARM connections, the ARM are connect with the computation analysis module, and the human-computer interaction interface is shown under the control of the ARM
Show the control parameter of phase-change switch and control process.
Preferably, the acquisition module includes mutual inductor.
As the third aspect of the invention, a kind of active load control system is provided, wherein, the active load control
System includes previously described active load control device and phase-change switch, and the active load control device is arranged on distribution change
Depressor exit, the phase-change switch are arranged on branch collection electricity box front end, and the active load control device and the commutation are opened
Close communication connection.
Active load control method provided by the invention, by acquiring voltage signal and current signal in distribution line,
And calculating analysis is carried out according to voltage signal and current signal, then phase-change switch is controlled according to control signal, is solved
In the prior art by artificial phase modulation heavy workload the problem of, while effectively three-phase imbalance is solved the problems, such as, raising
The reliability of power supply.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 is the flow chart of active load control method provided by the invention.
Fig. 2 is the structure diagram of active load control device provided by the invention.
Fig. 3 is the specific embodiment structure diagram of active load control device provided by the invention.
Fig. 4 is the structure diagram of active load control system provided by the invention.
Fig. 5 is the structure diagram of phase-change switch provided by the invention.
Fig. 6 is the specific embodiment schematic diagram of the active load control system of body of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As the first aspect of the invention, a kind of active load control method is provided, wherein, as shown in Figure 1, the master
Dynamic load regulation and control method includes：
S110, the in real time voltage signal and current signal in acquisition distribution line；
S120, the voltage signal and current signal are carried out to calculate analysis generation control signal；
S130, the control signal is sent to phase-change switch to control phase-change switch.
Active load control method provided by the invention, by acquiring voltage signal and current signal in distribution line,
And calculating analysis is carried out according to voltage signal and current signal, then phase-change switch is controlled according to control signal, is solved
In the prior art by artificial phase modulation heavy workload the problem of, while effectively three-phase imbalance is solved the problems, such as, raising
The reliability of power supply.
Specifically, the active load control method, which is additionally included in, described counts the voltage signal and current signal
It is carried out before point counting analysis generation control signals step：
Analog-to-digital conversion is carried out to the voltage signal and the current signal, analog voltage signal and analog current signal are turned
Change digital signal into.
Specifically, the active load control method further includes：
The control signal is stored.
Specifically, the active load control method further includes：
Show the control parameter of phase-change switch and control process.
As the second aspect of the invention, a kind of active load control device is provided, wherein, as shown in Fig. 2, the master
Dynamic load regulation device 100 includes：
Acquisition module 110, the acquisition module 110 is for the voltage signal and current signal in acquisition distribution line in real time；
Computation analysis module 120, the computation analysis module 120 are used to that the voltage signal and current signal calculate to divide
Analysis generation control signal；
Communication module 130, the communication module 130 be used for by it is described control signal be sent to phase-change switch with to phase-change switch into
Row control.
Active load control device provided by the invention, by acquiring voltage signal and current signal in distribution line,
And calculating analysis is carried out according to voltage signal and current signal, then phase-change switch is controlled according to control signal, is solved
In the prior art by artificial phase modulation heavy workload the problem of, while effectively three-phase imbalance is solved the problems, such as, raising
The reliability of power supply.
Specifically, as shown in figure 3, the active load control device 100 further includes analog-digital converter 140, the modulus
Converter 140 is used to carry out analog-to-digital conversion to the voltage signal and the current signal, by analog voltage signal and simulation
Current signal is converted into digital signal.
Specifically, the active load control device 100 further includes storage unit 150, the storage unit 150 for pair
The control signal is stored.
Specifically, the active load control device 100 further includes human-computer interaction interface 160 and ARM170, described man-machine
Interactive interface 160 is connected with the ARM170, and the ARM170 is connect with the computation analysis module 120, the human-computer interaction
Interface 160 shows the control parameter of phase-change switch and control process under the control of the ARM170.
Preferably, the computation analysis module 120 includes digital signal processor DSP.
Preferably, the acquisition module 110 includes mutual inductor.
Preferably, the communication module includes remote communication interface GPRS.
Active load control device provided by the invention, as shown in figure 3, using the major-minor structures of DSP+ARM, DSP is core
Acquisition control unit, ARM are mainly responsible for communication and human-computer interaction.
Specifically, mutual inductor samples the master datas such as distribution low-voltage side three-phase voltage, electric current.
Specifically, the analog signal adopted is converted to digital signal and passes to DSP by A/D analog-digital converters.
The load current that DSP uploads distribution low-voltage side three-phase voltage, electric current and phase-change switch carries out processing analysis, prison
Each phase-change switch status information, the calculated load degree of balance and distribution situation are surveyed, commutation is remotely issued and instructs to phase-change switch；It will be whole
Data, state during a system operation pass to ARM for showing, receive parameter setting information and carry out corresponding control process；
Important parameter, status information are passed to storage unit and stored.
ARM carries out information exchange by 485 communication modes and man-machine interface, by remote communication interface and phase-change switch into
Row information interacts.
Active load control device provided by the invention can in the case where not interrupting customer power supply on-load intelligence it is real
When dynamic regulation three-phase load, overcome tradition by phase modulation artificial after grid cut-off come the shortcomings that adjusting three-phase imbalance, merge
It is the advantages of thyristor and A.C. contactor, thyristor is in parallel with contactor, it is controlled using DSP, in the wink for putting into and cutting off
Between operating passing zero undertaken by thyristor switch, when voltage zero-cross, puts into, and when current over-zero cuts off, when being then connected long by contactor
Between be connected operation.Since device is by thyristor operating passing zero, there is no-flashy-flow, and turn-on time is extremely short, Bu Huiyin
Fever is played, contactor is in actuation and disconnection moment does not all shove and spark, to power grid without impact.Meanwhile active load control
System can realize local reactive power compensation function in user side, reduce distribution line loss, improve grid voltage quality.
As the third aspect of the invention, a kind of active load control system is provided, wherein, as shown in figure 4, the master
Dynamic load regulator control system 10 includes previously described active load control device 100 and phase-change switch 200, the active load tune
Control device 100 is arranged on distribution transformer exit, and the phase-change switch 200 is arranged on branch collection electricity box front end, the active
Load control device 100 and the phase-change switch 200 communicate to connect.
Active load control system provided by the invention, by acquiring voltage signal and current signal in distribution line,
And calculating analysis is carried out according to voltage signal and current signal, then phase-change switch is controlled according to control signal, is solved
In the prior art by artificial phase modulation heavy workload the problem of, while effectively three-phase imbalance is solved the problems, such as, raising
The reliability of power supply.
As shown in Figure 5 and Figure 6, phase-change switch 200 is mainly made of thyristor, contactless contactor, current transformer.
Preferably, current transformer is used for the electric current of load branch circuit where acquiring phase-change switch.
Specifically, phase-change switch uses inverse parallel knot using thyristor and contactless contactor parallel-connection structure, wherein thyristor
Structure.
When power distribution network tri-phase unbalance factor meets national standard, phase-change switch is maintained at work phase, and work phase contact
Switch is closed, thyristor locking；Inoperative phase contact switch disconnects, thyristor locking.
When system tri-phase unbalance factor is more than national standard, phase-change switch can switch according to the instruction of load control terminal
To low-load phase, the course of work is as follows：Work phase turn on thyristors, and work phase contact switch disconnects, and work phase thyristor closes
Disconnected, low-load phase thyristor passing zero trigger, low-load phase contact switch is closed, the locking of low-load phase thyristor.Commutation process
Do not have a power failure, is fast without impact, speed, and oneself power consumption is low, reliability is high, is easy to extend non-maintaining.
Active load control system provided by the invention, is made of active load control device and phase-change switch two parts,
Load control terminal is mounted on distribution transformer exit, and phase-change switch is arranged separately in each branch collection electricity box front end.Load tune
Control terminal monitors the situation of distribution low-voltage side outlet three-phase current, voltage in real time, receives each load current that phase-change switch uploads
Information judges relevant constraint according to three-phase current unbalance degree limit value, and commutation is performed if meeting and imposing a condition and is determined,
Then the Optimal regulation and control for by optimization algorithm be calculated the on-line automatic regulation and control of each low-voltage load instructs, and is handed down to commutation and opens
It closes, switch is made to complete each load branch circuit difference phase sequence in the state of not needing to have a power failure according to the reliable opening and closing movement of control instruction
Between conversion, realize the autobalance of three-phase load.
It should be noted that phase-change switch provided by the invention, can according to the three-phase voltage of acquisition electricity consumption branch and
Situations such as current data, intelligent decision phase shortage, low-voltage, overtension, traffic overload and short circuit.
Phase-change switch disconnects complete according to malfunctions such as the phase shortage of judgement, low-voltage, overtension, traffic overload, short circuits
Portion's thyristor switch and contactor, cut-out customer power supply circuit, protect electrical equipment, while by malfunction coding and trouble point through nothing
The mode of line communication is sent to active load control device.
Malfunction coding and trouble point of the active load control device through the long-range phase-change switch of wireless communication receiver, and pass through
Sound-light alarm provides warning for power distribution network management service personnel, to realize fast failure judgement, fault location and fault restoration
It provides safeguard.
Active load control system provided by the invention has the advantage that：
（1）Three-phase imbalance is administered：Power distribution network three-phase imbalance can be adjusted, make three-phase branch mean allocation load,
Threephase load and transformer loss caused by reducing three-phase imbalance improve power supply quality and power supply reliability, reduce user and throw
Tell rate；
（2）Reduce new energy, the influence that electric vehicle charges to power grid：Complete generation of electricity by new energy transmission power from commutation, with
And the autobalance that new energy charges with electric vehicle, reduce the influence that new energy and electric vehicle charge to power grid；
（3）Do not have a power failure switching：Using zero passage commutation technology, commutation time maximum 10ms can avoid producing in load switching moment
It is raw it is larger shove, avoid having an impact the electrical equipment of user；
（4）Intelligent open-phase protection：User caused by uniline failure is powered off, can quickly disconnect failure phase, simultaneity factor
It is quickly calculated, and user is switched into the maximum normal mutually operation of line current nargin, user is avoided to power off, improves power supply
Quality；
（5）Intelligent trouble positions：Can be by active load control system decision maker line broken circuit, short circuit, overcurrent situations such as,
And alarm model is sent, realize fast failure positioning；
（6）User side local reactive power compensation：Device has user side local reactive power compensation function, can reduce the idle work(of distribution line
Rate conveys, and reduces power distribution network reactive loss, improves grid voltage quality.
（7）It is energy saving reliable：Using two-phase thyristor parallel contactor structure, the fever that long term device operation is brought is avoided to ask
Topic, will greatly improve distribution operation stability and safety, and device own loss is small, close to zero loss, to environment without electromagnetism dirt
Dye, noise-less pollution；
（8）Intelligent control is non-maintaining：Using high speed digital signal processor（DSP）System is triggered with valve, with reference to advanced control
Strategy, the combination of each group phase-change switch in real time, is intelligently adjusted according to part throttle characteristics, and Fast-Balance load is optimal control result；
（9）It is expansible restructural：Each phase-change switch carries out data with active load control system terminal by GPRS wireless telecommunications
It exchanges, according to the increase and decrease of load, phase-change switch is extended and is reconstructed；
（10）Mounting means is flexible：It is suitable for the first-class multiple mounting modes of indoor and outdoor, wall hanging, column.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
- A kind of 1. active load control method, which is characterized in that the active load control method includes：Voltage signal and current signal in acquisition distribution line in real time；The voltage signal and current signal are carried out to calculate analysis generation control signal；The control signal is sent to phase-change switch to control phase-change switch.
- 2. active load control method according to claim 1, which is characterized in that the active load control method is also wrapped Include it is described the voltage signal and current signal carried out to calculate analysis generation control signals step before carry out：Analog-to-digital conversion is carried out to the voltage signal and the current signal, analog voltage signal and analog current signal are turned Change digital signal into.
- 3. active load control method according to claim 2, which is characterized in that the active load control method is also wrapped It includes：The control signal is stored.
- 4. active load control method as claimed in any of claims 1 to 3, which is characterized in that the active is born Lotus regulation and control method further includes：Show the control parameter of phase-change switch and control process.
- 5. a kind of active load control device, which is characterized in that the active load control device includes：Acquisition module, the acquisition module is for the voltage signal and current signal in acquisition distribution line in real time；Computation analysis module, the computation analysis module are used to that the voltage signal and current signal to be carried out to calculate analysis generation Control signal；Communication module, the communication module are used to the control signal being sent to phase-change switch to control phase-change switch System.
- 6. active load control device according to claim 5, which is characterized in that the active load control device also wraps Analog-digital converter is included, the analog-digital converter is used to carry out analog-to-digital conversion to the voltage signal and the current signal, will Analog voltage signal and analog current signal are converted into digital signal.
- 7. active load control device according to claim 6, which is characterized in that the active load control device also wraps Storage unit is included, the storage unit is used to store the control signal.
- 8. the active load control device according to any one in claim 5 to 7, which is characterized in that the active is born Lotus regulation device further includes human-computer interaction interface and ARM, and the human-computer interaction interface is connected with the ARM, the ARM with it is described Computation analysis module connects, and the human-computer interaction interface shows control parameter and the control of phase-change switch under the control of the ARM Process processed.
- 9. the active load control device according to any one in claim 5 to 7, which is characterized in that the acquisition mould Block includes mutual inductor.
- 10. a kind of active load control system, which is characterized in that the active load control system is included in claim 5 to 9 Active load control device and phase-change switch described in any one, the active load control device are arranged on distribution transformer Exit, the phase-change switch are arranged on branch collection electricity box front end, and the active load control device and the phase-change switch lead to Letter connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810175080.2A CN108258704A (en) | 2018-03-02 | 2018-03-02 | A kind of active load control method, apparatus and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810175080.2A CN108258704A (en) | 2018-03-02 | 2018-03-02 | A kind of active load control method, apparatus and system |
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| CN108258704A true CN108258704A (en) | 2018-07-06 |
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ID=62745660
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| CN201810175080.2A Pending CN108258704A (en) | 2018-03-02 | 2018-03-02 | A kind of active load control method, apparatus and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109286197A (en) * | 2018-11-28 | 2019-01-29 | 国网江苏省电力有限公司南通供电分公司 | A kind of distribution stable programming system that electric car largely accesses |
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| CN207853481U (en) * | 2018-03-02 | 2018-09-11 | 国网江苏省电力有限公司宜兴市供电分公司 | A kind of active load control apparatus and system |
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2018
- 2018-03-02 CN CN201810175080.2A patent/CN108258704A/en active Pending
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|---|---|---|---|---|
| WO2014090018A1 (en) * | 2012-12-12 | 2014-06-19 | 天津市电力公司 | Iec61850 standard-based intelligent power distribution terminal |
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| CN206313454U (en) * | 2017-01-04 | 2017-07-07 | 国网冀北电力有限公司张家口供电公司 | Load unbalanced adjusting means and system |
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| CN109286197A (en) * | 2018-11-28 | 2019-01-29 | 国网江苏省电力有限公司南通供电分公司 | A kind of distribution stable programming system that electric car largely accesses |
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