CN104143827A - Power distribution network reactive power optimization compensation method based on rapid and reliable communication - Google Patents
Power distribution network reactive power optimization compensation method based on rapid and reliable communication Download PDFInfo
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- CN104143827A CN104143827A CN201410317633.5A CN201410317633A CN104143827A CN 104143827 A CN104143827 A CN 104143827A CN 201410317633 A CN201410317633 A CN 201410317633A CN 104143827 A CN104143827 A CN 104143827A
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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
- 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
- Y02E40/30—Reactive power compensation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- 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
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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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
- 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
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Abstract
The invention discloses a power distribution network reactive power optimization compensation method based on rapid and reliable communication and belongs to the field of power system automation. According to the power distribution network reactive power optimization compensation method based on rapid and reliable communication, a master station part and a reactive power compensation part used for transmitting the operation state and data to the master station part are involved, the master station part comprises a system scheduling platform, a marketing system and a production management system which are associated with one another, the reactive power compensation part comprises a device-following compensation device and an in-place compensation device, internal networking is achieved by means of the in-place compensation device through small wireless communication, so that a stagger network is formed, all in-place compensation operation states and data in the area of the platform are transmitted to the device-following compensation device, the device-following compensation device transmits the operation sates and the data to the system scheduling platform through the GPRS, and thus remote transmission and management of monitoring information and data relevant to reactive power compensation are achieved for a user. According to the power distribution network reactive power optimization compensation method based on rapid and reliable communication, unified-platform management of a reactive power compensation device is achieved through wireless networking, flowing reactive currents of a system are reduced, line loss is reduced, the voltage of the system is stabilized, low voltage at the tail end is increased, the power quality is improved, and the active transmission capacity of a line is improved.
Description
Technical field
The invention belongs to power system automatic field, relate to low voltage electric network distribution, especially a kind of GA for reactive power optimization compensation method based on quick dependable communications.
Background technology
In recent years, development along with modern industry and power industry, distance and the capacity of delivery of electrical energy increase day by day, industrial cousumer is more and more higher to the requirement of the quality of power supply, because power distribution station is generally long to user's supply line, especially in the larger area of radius of electricity supply, the supply line of 380V can reach a km nearly, low-voltage network exists long distance to carry reactive power, the problem that idle line loss is large, therefore, no matter from improving the transmittability of power transmission network, reduce the wastage, improve the stability of a system, or from improving the angle of power supply quality, all need to install a large amount of reactive power compensators.
The current electric network reactive compensation of China mainly concentrates on height, medium voltage distribution network, and low-voltage network compensation is less, so that the line loss of low-voltage network is much larger than line loss high, medium voltage distribution network, has reduced economic benefit and the quality of voltage of operation of power networks.And in some rural comprehensive power distribution station, some employing Reactive Compensation Modes, reactive power compensator is installed near transformer and is carried out centralized compensation, but centralized compensation is for the lifting weak effect of low voltage electric network load side power factor, cannot effectively reduce low voltage electric network load current, poor to reducing Low-voltage Line Loss effect.
In order to solve the defect of centralized compensation, the applicant is on 06 17th, 2013 in the applying date, application number is that 201310237892.2 Chinese utility model patent discloses a kind of low-voltage distribution platform based on wireless network and distinguishes loose reactive-load compensation method, and the method is all provided with a dispersion compensation apparatus at 10 kv grids through a plurality of separated time ends of transformer stations' dispensing outlet lines or the circuit of load concentrated area; The voltage of the corresponding separated time end of this dispersion compensation apparatus Real-Time Monitoring also sends microprocessor to by detecting the data that obtain; Microprocessor transmits control signal obtained data after treatment, capacitor switching balancing circuitry voltage; This dispersion compensation apparatus through wireless connections and regulation and control command centre networking transinformation, regulates and controls the dispersion compensation apparatus of a plurality of separated time ends of command centre's real-time monitoring by this wireless network communication module; But the method is still not ideal enough for improving the quality of power supply and reducing Low-voltage Line Loss effect.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of GA for reactive power optimization compensating method based on quick dependable communications is provided, and compensation effect is better, moves more reliable and more stable, can improve the meritorious conveying capacity of circuit, further improve the quality of power supply and reduce the effect of Low-voltage Line Loss.
In order to overcome the deficiencies in the prior art, the invention provides a kind of GA for reactive power optimization compensation method based on quick dependable communications, comprise reactive power compensation part from data to main website that partly transmit running status and, described main website partly comprises the system transfer platform connecting each other, marketing system and production management system, described reactive power compensation be partly included in that substation transformer lateral root in 10 kv grids compensates according to the idle situation of transformer with device compensation with for circuit and the local compensation that compensates in the idle situation of a plurality of separated time ends, the described local compensation carrying out at a plurality of separated time ends is by networking in small wireless communication realization, form a staggered-mesh, in Jiang Tai district, the running status of all reactive power compensators and transfer of data arrive with device compensation arrangement, described links system transfer platform by running status and data by GPRS mode with device compensation arrangement, realize teletransmission and the management of user's monitoring information and reactive power compensation related data.
The above-mentioned GA for reactive power optimization compensation method based on quick dependable communications, in described Tai district, realize local compensation measure, realize and need to mend, at load center, improve power factor, reduce idle flowing in electrical network, improve the quality of power supply and reduce line loss, to the required idle way of compensation nearby of separate unit power consumption equipment, capacitor is directly received to the same electric loop of separate unit power consumption equipment, with same switch, control, put into operation simultaneously or disconnect, this compensation method, capacitor is near power consumption equipment, in-situ balancing reactive current, overcompensation in the time of can avoiding zero load, quality of voltage is guaranteed.
The above-mentioned GA for reactive power optimization compensation method based on quick dependable communications, in described Tai district, realize with device indemnifying measure, the reactive requirement of realization because forming because of set such as little electric current are refused to mend and circuit is perceptual idle in local compensation reactive power compensator control strategy, take to carry out with device Measures of Reactive Compensation in transformer side, reach stable high voltage side power factor, improve the quality of power supply.
The above-mentioned GA for reactive power optimization compensation method based on quick dependable communications, in described transformer side, distribution transformer terminals TTU is set, with device compensation arrangement information access distribution transformer terminals TTU, distribution transformer terminals TTU links system by cable network mode and transfers platform, realizes teletransmission and the management of monitor user ' information and reactive power compensation related data.
The above-mentioned GA for reactive power optimization compensation method based on quick dependable communications, described comprises current/voltage signal sampling power factor (PF) detecting unit, processor, man-machine interface, switch module and communication unit with device compensation arrangement and in-situ compensation device, current/voltage signal sampling power factor (PF) detecting unit detects compensation point power factor and passes to processor, processor is controlled reactive power compensator according to controlling countermeasure realization, and signal is sent to respectively to man-machine interface, switch module and communication unit.
The invention has the beneficial effects as follows: 1, firm power factor, in critical field, and improves capacitor useful life, reduces operating cost, by wireless networking, is realized reactive power compensator is carried out to unified platform management; 2, with device compensation arrangement and in-situ compensation device, combine by taking, systems stabilisation voltage, improves end low-voltage phenomenon, improves the quality of power supply; 3, reduce System Reactive Power current flowing, reduce line loss, can improve like this power factor of end, can improve again the rate of qualified voltage of line end, and reduce the loss of circuit, improve the meritorious conveying capacity of circuit; 4, by intelligent distribution transformer terminals TTU and intelligent powerless compensation device communication modes and communications protocol, realize the reliable and stable communication efficiently of terminal and main website, realize data integration and the United Dispatching of platform district local intelligent reactive power compensator on intelligent distribution transformer terminals TTU.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic diagram.
Fig. 2 is that the present invention is with device compensation arrangement and in-situ compensation device structural representation.
Fig. 3 is another embodiment of the present invention method schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The GA for reactive power optimization compensation method based on quick dependable communications as shown in Figure 1, comprise main website part and reactive power compensation part from data to main website that partly transmit running status and, described main website partly comprises system transfer platform, marketing system and the production management system connecting each other, system is transferred between platform and marketing system can carry out exchanges data, and system is transferred between platform and production management system also can carry out exchanges data; Described reactive power compensation be partly included in that in 10 kv grids substation transformer lateral root compensates according to the idle situation of transformer with device compensation with for circuit and the local compensation that compensates in the idle situation of a plurality of separated time ends, in 380V platform district electric power transmission network, realize transformer side and combine with device compensation and two kinds of compensation ways of load concentration zones local compensation, reach the object that reactive power compensation is administered in allocated radio optimization; Local compensation measure, realizes and needs to mend, and at load center, improves power factor, reduces idle flowing in electrical network, improves the quality of power supply and reduces line loss; Local compensation measure is to the required idle way of compensation nearby of separate unit power consumption equipment, capacitor is directly received to the same electric loop of separate unit power consumption equipment, with same switch, control, put into operation simultaneously or disconnect, this compensation method, capacitor is near power consumption equipment, in-situ balancing reactive current, overcompensation in the time of can avoiding zero load, is guaranteed quality of voltage.The local compensation carrying out at a plurality of separated time ends is by networking in small wireless communication realization, form a staggered-mesh, in Jiang Tai district, the running status of all reactive power compensators and transfer of data arrive with device compensation arrangement, in described Tai district, realize with device indemnifying measure, realize the reactive requirement forming because of set such as little electric current are refused to mend and circuit is perceptual idle because of in reactive power compensator control strategy on the spot, take to carry out with device Measures of Reactive Compensation in transformer side, reach stable high voltage side power factor, improve the quality of power supply.Described links system transfer platform by running status and data by GPRS mode with device compensation arrangement, realizes teletransmission and the management of user's monitoring information and reactive power compensation related data.GPRS telecommunication link possesses enough communication bandwidths, meets the requirement that all kinds of smart machines and system are transferred platform up-downgoing data interaction.
As shown in Figure 2, should comprise current/voltage signal sampling power factor (PF) detecting unit, processor, man-machine interface, switch module and communication unit with device compensation arrangement and in-situ compensation device, current/voltage signal sampling power factor (PF) detecting unit detects compensation point power factor and passes to processor, processor is controlled reactive power compensator according to controlling countermeasure realization, after treatment signal is sent to respectively to man-machine interface, switch module and communication unit, be convenient to show, observe and obtain data certificate and carry out manual operation.As a kind of optimal way, this reactive power compensator is intelligent powerless compensation case, it is the reactive power compensator that 380V low voltage electric network is energy-efficient, reduce line loss raising power factor and the quality of power supply, can gather voltage, electric current, show the information such as current virtual voltage, current power factor, reactive power, alarm coding; There is the defencive functions such as residue overcurrent, overvoltage, undercurrent, under-voltage, excess temperature, phase shortage, switching frequency restriction, harmonic wave; During many Intelligent capacitor access data buses, can mutually identify and automatic network-building.When capacitor operational factor surpasses set point or occurs that when abnormal, Intelligent capacitor can send alarm; When parameter recovers normal, can recover voluntarily; A distant place and can select respectively on the spot to arrange and enable or forbid these alarms; Parameter tuning comprises: the operating value such as overcurrent, overvoltage, undercurrent, under-voltage, excess temperature, switching frequency restriction; Switching no-flashy-flow impacts, without switching overvoltage.When being used in 380V power distribution station, capacitor service efficiency is provided, improve end low-voltage, reduce Low-voltage Line Loss, the operating efficiency of capacitor equipment is provided.
As another embodiment, as shown in Figure 3, reactive power compensator information access distribution transformer terminals TTU, distribution transformer terminals TTU links system by modes such as GPRS/CDMA, cable networks and transfers the interfaces such as platform and marketing system, production management system, realizes teletransmission and the management of user's monitoring information and reactive power compensation related data.For example a plurality of separated time ends at 10 kv grids process transformer station dispensing outlet lines are all provided with in-situ compensation device; The voltage of the corresponding separated time end of this in-situ compensation device Real-Time Monitoring also sends to device compensation arrangement detecting the data that obtain, with device compensation arrangement, by detecting the data that obtain, send distribution transformer terminals TTU to, distribution transformer terminals TTU transmits control signal obtained data after treatment, links system transfer platform by modes such as GPRS/CDMA, cable networks; According to sampled value or distant place set point on the spot, carry out the comprehensive compensation function of idle switching; Realized the monitoring to distribution transformer terminals TTU and reactive power compensator operation information.By the voltage of distribution transforming, electric current, power factor (PF) etc. are monitored in real time, grasp in time the ruuning situation of distribution transforming, prevent that the serious overload of distribution transformer load from causing the burning of equipment, acceleration that the serious imbalance of threephase load causes distribution transforming to damage, adjust in time distribution transforming running status, reasonable disposition capacity of distribution transform, adjust the low-voltage intelligent the control of reactive power compensating of distribution transforming etc., guarantee distribution transforming safety, stable, operation efficiently.Measure as a further improvement on the present invention, this distribution transformer terminals TTU is used intelligent distribution transformer terminals TTU, by intelligent distribution transformer terminals TTU and intelligent powerless compensation device communication modes and communications protocol, realize the reliable and stable communication efficiently of terminal and main website, realize data integration and the United Dispatching of platform district local intelligent reactive power compensator on intelligent distribution transformer terminals TTU.
In the system of main website is transferred platform, man-machine interface is mainly divided into imaginary power automatic compensation, long-range switching, reactive power compensation parameter, four large function classes of reactive power compensation record.1. imaginary power automatic compensation interface; Because there is oneself the characteristic such as electric current and voltage, load curve in each district, the making time of capacitor, mute time, switching also can arrange interval time, the effect of reactive power compensation when these three parameters directly have influence on actual motion; If the idle variation in Gai Tai district is than very fast in reality, can suitably reduce this value switching judgement is accelerated, thereby compensation is accelerated, improve compensation effect.2. long-range switching interface; When automatic switching lost efficacy, can manually drop into and excise, manual switching also can be used for of short duration at ordinary times switching test, manual switching function is realized at this interface, by calling the data of survey time together, can know the over-and under-voltage state of seeing ABC three-phase, undercompensation or overcompensation, capacitor switching state, the information such as switching frequency, switching mode.3. reactive power compensation parameter interface; By calling survey capacitor parameters together, can be well understood to and under platform district, connect how many roads electric capacity, every road capacitance information.But must note electric capacity quantity, according to main website relevant regulations, one is mended capacitor is altogether two electric capacity, and a minute benefit capacitor is three electric capacity, and mends at front minute and mend rear altogether.4. interface is recorded in reactive power compensation; This interface is mainly to understand capacitor switching total degree, switching total time, drops at most the information such as electric capacity number of times.
By reference to the accompanying drawings embodiment of the present invention is explained in detail above; but the present invention is not limited to above-mentioned execution mode; to those skilled in the art; can also make under the premise of not departing from the present invention some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (5)
1. the GA for reactive power optimization compensation method based on quick dependable communications, comprise main website part and reactive power compensation part from data to main website that partly transmit running status and, described main website partly comprises the system transfer platform connecting each other, marketing system and production management system, it is characterized in that: described reactive power compensation be partly included in that substation transformer lateral root in 10 kv grids compensates according to the idle situation of transformer with device compensation with for circuit and the local compensation that compensates in the idle situation of a plurality of separated time ends, the described local compensation carrying out at a plurality of separated time ends is by networking in small wireless communication realization, form a staggered-mesh, in Jiang Tai district, the running status of all local compensations and transfer of data arrive with device compensation arrangement, described links system transfer platform by running status and data by GPRS mode with device compensation arrangement, realize teletransmission and the management of user's monitoring information and reactive power compensation related data.
2. the GA for reactive power optimization compensation method based on quick dependable communications according to claim 1, it is characterized in that: in described Tai district, realize local compensation measure, realize and need to mend, at load center, improve power factor, reduce idle flowing in electrical network.
3. the GA for reactive power optimization compensation method based on quick dependable communications according to claim 2, it is characterized in that: in described transformer side, realize with device indemnifying measure, the reactive requirement of realization because forming because of set such as little electric current are refused to mend and circuit is perceptual idle in in-situ compensation device control strategy, reaches stable high voltage side power factor.
4. the GA for reactive power optimization compensation method based on quick dependable communications according to claim 3, it is characterized in that: in described transformer side, distribution transformer terminals TTU is set, with device compensation arrangement information access distribution transformer terminals TTU, distribution transformer terminals TTU links system by cable network mode and transfers platform, realizes teletransmission and the management of monitor user ' information and reactive power compensation related data.
5. the GA for reactive power optimization compensation method based on quick dependable communications according to claim 1, it is characterized in that: described comprises current/voltage signal sampling power factor (PF) detecting unit, processor, man-machine interface, switch module and communication unit with device compensation arrangement and in-situ compensation device, current/voltage signal sampling power factor (PF) detecting unit detects compensation point power factor and passes to processor, processor is controlled reactive power compensator according to controlling countermeasure realization, and signal is sent to respectively to man-machine interface, switch module and communication unit.
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| CN104319792A (en) * | 2014-11-25 | 2015-01-28 | 国家电网公司 | Voltage reactive power compensation system and method |
| CN105656689A (en) * | 2016-03-04 | 2016-06-08 | 贵州电网有限责任公司电力科学研究院 | Method for achieving multichannel communication of distribution transformation terminal through GPRS (General Packet Radio Service) channel layer management |
| CN106026128A (en) * | 2016-07-07 | 2016-10-12 | 安徽众升电力科技有限公司 | Reactive power compensation system of power system |
| CN109214618A (en) * | 2017-06-29 | 2019-01-15 | 平高集团有限公司 | A kind of rural power grids part reactive compensation dispensing control method and device |
| CN109638849A (en) * | 2018-12-13 | 2019-04-16 | 广西电网有限责任公司电力科学研究院 | A kind of power distribution network low-voltage intelligence control system |
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| CN112909963A (en) * | 2021-03-29 | 2021-06-04 | 广东电网有限责任公司中山供电局 | Distribution network and thing networking distributing type reactive compensation system |
| CN114079289A (en) * | 2020-08-21 | 2022-02-22 | 济南爱迪电气设备有限公司 | Regional distribution network multi-technology loss reduction energy-saving system |
| CN114566974A (en) * | 2022-02-18 | 2022-05-31 | 国网浙江省电力有限公司宁海县供电公司 | Movable reactive power compensation device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319792A (en) * | 2014-11-25 | 2015-01-28 | 国家电网公司 | Voltage reactive power compensation system and method |
| CN105656689A (en) * | 2016-03-04 | 2016-06-08 | 贵州电网有限责任公司电力科学研究院 | Method for achieving multichannel communication of distribution transformation terminal through GPRS (General Packet Radio Service) channel layer management |
| CN105656689B (en) * | 2016-03-04 | 2019-04-02 | 贵州电网有限责任公司电力科学研究院 | The method that multichannel communication multiple telecommunication is realized in the passage layered management of distribution transformer terminals GPRS |
| CN106026128A (en) * | 2016-07-07 | 2016-10-12 | 安徽众升电力科技有限公司 | Reactive power compensation system of power system |
| CN109214618B (en) * | 2017-06-29 | 2023-08-22 | 平高集团有限公司 | Rural power grid local reactive compensation allocation control method and device |
| CN109214618A (en) * | 2017-06-29 | 2019-01-15 | 平高集团有限公司 | A kind of rural power grids part reactive compensation dispensing control method and device |
| CN109638849A (en) * | 2018-12-13 | 2019-04-16 | 广西电网有限责任公司电力科学研究院 | A kind of power distribution network low-voltage intelligence control system |
| CN109831028A (en) * | 2018-12-30 | 2019-05-31 | 国网浙江省电力有限公司电力科学研究院 | A kind of power distribution network low-voltage intelligence control system |
| CN114079289A (en) * | 2020-08-21 | 2022-02-22 | 济南爱迪电气设备有限公司 | Regional distribution network multi-technology loss reduction energy-saving system |
| CN112909963A (en) * | 2021-03-29 | 2021-06-04 | 广东电网有限责任公司中山供电局 | Distribution network and thing networking distributing type reactive compensation system |
| CN112909963B (en) * | 2021-03-29 | 2023-09-26 | 广东电网有限责任公司中山供电局 | Distribution network and internet of things distributed reactive power compensation system |
| CN114566974A (en) * | 2022-02-18 | 2022-05-31 | 国网浙江省电力有限公司宁海县供电公司 | Movable reactive power compensation device |
| CN114566974B (en) * | 2022-02-18 | 2024-07-12 | 国网浙江省电力有限公司宁海县供电公司 | Movable reactive power compensation device |
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