CN204597483U - A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator - Google Patents

A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator Download PDF

Info

Publication number
CN204597483U
CN204597483U CN201520357579.7U CN201520357579U CN204597483U CN 204597483 U CN204597483 U CN 204597483U CN 201520357579 U CN201520357579 U CN 201520357579U CN 204597483 U CN204597483 U CN 204597483U
Authority
CN
China
Prior art keywords
voltage
energy storage
power station
voltage regulator
mobile energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201520357579.7U
Other languages
Chinese (zh)
Inventor
刘飞
兰贞波
李爱魁
刘波
姜国义
刘海波
肖冰
王伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan NARI Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
State Grid Eastern Inner Mongolia Power Co Ltd
Original Assignee
Wuhan NARI Ltd
State Grid Eastern Inner Mongolia Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan NARI Ltd, State Grid Eastern Inner Mongolia Power Co Ltd filed Critical Wuhan NARI Ltd
Priority to CN201520357579.7U priority Critical patent/CN204597483U/en
Application granted granted Critical
Publication of CN204597483U publication Critical patent/CN204597483U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The utility model discloses a kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator.Described controlling device comprises Mobile energy storage power station, on-load voltage regulating device and supervisory control system, described Mobile energy storage power station is connected in parallel on rural power grids transmission line, described on-load voltage regulating device is serially connected on rural power grids transmission line, supervisory control system, by monitoring the operating state of feeder voltage, Mobile energy storage power station and Loading voltage regulator and relevant parameter, realizes the Regulation Control of output control to energy-accumulating power station active power and Loading voltage regulator.Described controlling device eliminates the negative effect occurred when Loading voltage regulator works independently, power quality problem derivative in the Voltage Instability avoiding voltage adjusting device to cause and the system voltage collapse that causes and pressure regulation process; Solve energy storage device due to capacity limit to the problem that low-voltage regulation effect is limited.

Description

A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator
Technical field
The utility model relates to voltage regulating device and method and technology field, particularly relates to a kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator.
Background technology
In recent years, China rural area enters consumption upgrading and industrial transformation stage, and rural resident ' s family need for electricity constantly reaches a new stage, and some areas rural electricity consumption client occurs " low-voltage " problem in peak times of power consumption, and serious affects normal electricity consumption.Mainly contain track remodelling for the control measures that rural power grids terminal voltage is too low at present, newly-increased distribution transforming is layouted, install reactive power compensator, erection on-load tap-changing transformer and Mobile energy storage power station.Track remodelling and newly-increased distribution transforming corresponding transformation of layouting can solve the long low-voltage problem caused of radius of electricity supply, but required cost is higher, and modification scheme is implemented without supporting fund in the general rural power grids area fallen behind; Reactive power compensator can solve the circuit low-voltage problem that idle deficiency causes, but can not solve low-voltage problem completely, and series capacitor compensation also easily produces resonance problems; The adjustment of simple dependence on-load transformer tap changer may cause the quiet bifurcation of Voltage Instability " migration ", cause negative effect, there is load excessive, voltage regulator does not have the situation of corresponding working point simultaneously, thus does not reach the effect raising line voltage distribution; Mobile energy storage power station promotes line voltage distribution by providing required active power for load, but makes the capacity of energy-accumulating power station general less due to the energy storage characteristic of battery, limited to the low-voltage regulation effect in long line heavy duty area.
The patent document of China Patent Publication No. CN103580049 for electric automobile fill lay in electrical changing station change the problem that electric-type electric automobile standard cell leaves unused, utilance is low in a large number, propose the method for a kind of electric automobile power battery for the pressure regulation of electrical network low voltage circuit, using electric automobile battery box as energy-storage battery, energy conversion device is charged to battery by collating unit, the DC inverter of battery case is that alternating current is grid-connected to AC network by inverter, and the low-voltage problem of short time interval may appear in solution big city resident or industrial district supply line.But the power provided relative to power load due to electrokinetic cell during practical application is lower, and low-voltage regulation effect when there is the method practical application is not obvious, and the scope of application exists significant limitation.
The patent document of China Patent Publication No. CN201674229 relates to a kind of line end pressure regulation and the difunctional voltage regulator of reactive power compensation, comprise automatic coupling voltage regulator, the output of automatic coupling voltage regulator is provided with multiple adjustable tap, tap is connected with feeder line and reactive power compensation electricity container branch road, and tap double-duty can carry out separate connection according to regulatory demand or juxtaposition connects.This patent achieves and adopts a kind of equipment while regulation voltage, can improve again the object of line power factor.But the adjustment of this voltage regulator tap may cause the quiet bifurcation of Voltage Instability " migration " when low-voltage is administered, cause negative effect, there is load excessive, voltage regulator does not have the situation of corresponding working point simultaneously, can cause the collapse of network system time serious.
The patent document of China Patent Publication No. CN104242322 discloses a kind of rural power grids low-voltage local reactive power compensation Automatic adjustment method, increase distribution low-voltage side automatic switching reactive compensator and low-voltage circuit reactive power compensator, to high-power user installation in-situ compensation device, voltage boosting device is installed additional at branch line end, voltage boosting device comprises three-phase imbalance adjustment idle compensating control, star connects electric capacity and corner connection electric capacity, by connecing electric capacity and corner connection electric capacity at alternate access electric power star, transformer delivery efficiency and power factor is improved in conjunction with three-phase imbalance adjustment idle compensating control, the rationalization realizing branch line voltage regulates and reduces line loss, effective lifting branch line voltage.But for long line heavy-haul line, the loss of voltage caused due to line resistance and active power transfer can not be ignored, and therefore capacitance compensation can not solve low-voltage problem completely, and series capacitor compensation also easily produces resonance problems.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator, described controlling device eliminates the negative effect occurred when Loading voltage regulator works independently, add the working range of voltage regulator when different load, the Voltage Instability avoiding voltage adjusting device to cause and cause system voltage collapse; By using energy-accumulating power station, avoid by power quality problem derivative in reactive power compensation and other equipment pressure regulation processes; Solve energy storage device due to capacity limit to the problem that low-voltage regulation effect is limited.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator, it is characterized in that: described controlling device comprises Mobile energy storage power station, on-load voltage regulating device and supervisory control system, described Mobile energy storage power station is connected in parallel on rural power grids transmission line, described Mobile energy storage power station is used for for rural power load provides required active power to promote rural power grids line voltage distribution, described on-load voltage regulating device is serially connected on rural power grids transmission line, for promoting line voltage distribution by adjustment on load tap changer, supervisory control system is passed through feeder voltage, operating state and the relevant parameter of Mobile energy storage power station and Loading voltage regulator are monitored, realize the output control of energy-accumulating power station active power and the Regulation Control of Loading voltage regulator.
Further technical scheme is: described Mobile energy storage power station comprises battery energy storage system, buck becomes and high-tension switch cabinet, between described battery energy storage system and buck become and buck become bidirectional data interaction between high-tension switch cabinet, described controlling device is connected in parallel on rural power grids transmission line by high-tension switch cabinet.
Further technical scheme is: described on-load voltage regulating device comprises power transformer, vacuum circuit-breaker, automatic voltage regulator and the isolating switch of connecting successively, described on-load voltage regulating device is connected with rural power grids transmission line by isolating switch, one termination power transformer of bypass breaker and the node of vacuum circuit-breaker, another termination rural power grids transmission line of bypass breaker.
Further technical scheme is: be provided with lightning arrester between described vacuum circuit-breaker and automatic voltage regulator and between automatic voltage regulator and isolating switch.
Further technical scheme is: described automatic voltage regulator is bidirectional pressure regulating device, regulates on load tap changer for the direction of tide according to circuit.
Further technical scheme is: described automatic voltage regulator comprises auto-type transformer, on load tap changer and controller, and the whole coil of auto-type transformer is divided into three parts: series excitation coil, shunt wound coil, control coil; On load tap changer be can in load-carrying situation the switch of changeover contact, described controller comprises single-chip microcomputer, display circuit, key circuit, voltage sampling circuit, current sampling circuit, state input circuit, PORT COM, control output circuit and data storage circuitry.
Further technical scheme is: described supervisory control system is in real time to feeder voltage, electric current, voltage regulator pressure regulation gear, the voltage of energy-accumulating power station, temperature, electric current, SOC (battery dump energy), DOD (the battery discharge degree of depth) and present output power, input power, day input electricity, export electricity day, accumulative input electricity, the accumulative electricity that exports monitor, and formulate corresponding control strategy by Monitoring Data.
The beneficial effect adopting technique scheme to produce is: described controlling device eliminates the negative effect occurred when Loading voltage regulator works independently, add the working range of voltage regulator when different load, the Voltage Instability avoiding voltage adjusting device to cause and cause system voltage collapse; By using energy-accumulating power station, avoid by power quality problem derivative in reactive power compensation and other equipment pressure regulation processes; Solve energy storage device due to capacity limit to the problem that low-voltage regulation effect is limited.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the theory diagram of controlling device described in the utility model;
Fig. 2 is the flow chart of the control method of device described in the utility model;
Fig. 3 is the pressure regulation effect curve figure of certain constant power load model circuit when Loading voltage regulator controls separately;
Fig. 4 is the pressure regulation effect curve figure of certain constant power load model circuit when the described controlling device of described use;
Wherein: 1-Mobile energy storage power station, 2-on-load voltage regulating device, 3-battery energy storage system, 4-buck becomes, 5-high-tension switch cabinet, 6-power transformer, 7-vacuum circuit-breaker, 8-automatic voltage regulator, 9-isolating switch, 10-lightning arrester, 11-bypass breaker, 12-10kV power line, 13-10kV bus, 14-load.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
As shown in Figure 1, the utility model discloses a kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator, described controlling device comprises Mobile energy storage power station 1, on-load voltage regulating device 2 and supervisory control system, described Mobile energy storage power station 1 is connected in parallel on rural power grids transmission line, described Mobile energy storage power station 1 is for providing required active power to promote rural power grids line voltage distribution for rural power load, described on-load voltage regulating device 2 is serially connected on rural power grids transmission line, for promoting line voltage distribution by adjustment on load tap changer, supervisory control system is passed through feeder voltage, operating state and the relevant parameter of Mobile energy storage power station 1 and on-load voltage regulating device 2 are monitored, realize the output control of energy-accumulating power station active power and the Regulation Control of on-load voltage regulating device 2.
As shown in Figure 1, described Mobile energy storage power station 1 comprises battery energy storage system 3, buck becomes 4 and high-tension switch cabinet 5, between described battery energy storage system 3 and buck become 4 and buck become bidirectional data interaction between 4 and high-tension switch cabinet 5, described controlling device is connected in parallel on rural power grids transmission line by high-tension switch cabinet 5.
As shown in Figure 1, described on-load voltage regulating device 2 comprises power transformer 6, vacuum circuit-breaker 7, automatic voltage regulator 8 and the isolating switch 9 of connecting successively, described on-load voltage regulating device 2 is connected with rural power grids transmission line by isolating switch 9, the utility model is also provided with bypass breaker 11, one termination power transformer 6 of bypass breaker 11 and the node of vacuum circuit-breaker 7, another termination rural power grids transmission line of bypass breaker 11.In order to controlling device uses safer, between described vacuum circuit-breaker 7 and automatic voltage regulator 8 and between automatic voltage regulator 8 and isolating switch 9, be provided with lightning arrester 10.
As shown in Figure 1, described automatic voltage regulator 8 is bidirectional pressure regulating device, regulates on load tap changer for the direction of tide according to circuit.Described automatic voltage regulator 8 comprises auto-type transformer, on load tap changer and controller, and the whole coil of auto-type transformer is divided into three parts: series excitation coil, shunt wound coil, control coil; On load tap changer be can in load-carrying situation the switch of changeover contact, described controller comprises single-chip microcomputer, display circuit, key circuit, voltage sampling circuit, current sampling circuit, state input circuit, PORT COM, control output circuit and data storage circuitry.In Fig. 1 left side heavy line represents 10kV (kilovolt) power line 12, the heavy line on right side represents 10kV bus 13, the arrow on right side represents load 14.
Described supervisory control system is in real time to feeder voltage, electric current, voltage regulator pressure regulation gear, the voltage of energy-accumulating power station, temperature, electric current, SOC, DOD and present output power, input power, day input electricity, export electricity day, accumulative input electricity, the accumulative electricity that exports monitor, and formulate corresponding control strategy by Monitoring Data.
As shown in Figure 2, for ease of better understanding device described in the utility model, the utility model also discloses a kind of voltage administering method based on Mobile energy storage power station and Loading voltage regulator in the description, and described method comprises the steps:
1) supervisory control system obtains the voltage and current information of rural power grids transmission line by feeder line instrument transformer;
2) supervisory control system gathers the trip information of Mobile energy storage power station and on-load voltage regulating device;
3) information of supervisory control system to above-mentioned collection processes and analyzes, and judges whether rural power grids transmission line exists low-voltage;
4) when rural power grids transmission line voltage is in normal range (NR), control system controls on load tap changer action, automatic voltage regulator gear is placed in initial value, controls Mobile energy storage power station simultaneously and stop exporting corresponding active power, and be in charged state or the state that works offline;
5) when rural power grids transmission line voltage is in low voltage range, now judge further only to rely on on-load voltage regulating device whether low-voltage can be modulated to normal range (NR);
6) if when only relying on on-load voltage regulating device low-voltage can be modulated to normal range (NR), supervisory control system controls the action of voltage regulator on load tap changer, rural power grids transmission line is made to reach predetermined value, control Mobile energy storage power station to stop exporting corresponding active power simultaneously, and be in charged state or holding state;
7) if when only relying on on-load voltage regulating device low-voltage can not be modulated to normal range (NR), supervisory control system controls on-load voltage regulating device and Mobile energy storage power station works simultaneously, on-load voltage regulating device is adjusted to the gear that boosts accordingly, Mobile energy storage power station when short of electricity from network operation, exporting corresponding power when having electric, making rural power grids transmission line reach predetermined value.
As shown in Figure 3, Figure 4, n1-n4 is respectively the voltage adjustment characteristic curve of certain constant power load model circuit when Loading voltage regulator no-load voltage ratio is respectively 1,1.05,1.1 and 1.15, this voltage regulator peak load working point on this circuit is 348kW (maximum when circuit voltage regulator no-load voltage ratio is 1.15) as shown in Figure 1, when line load is more than 348kW (kilowatt), this voltage regulator cannot find corresponding working point, and voltage regulator cannot realize voltage rise by the adjustment of shunting switch.As shown in Figure 2, after this circuit adds the energy storage device of 100kW on the basis of voltage regulator operation, the peak load working point of voltage regulator moves to 448kW, adds the load operation point of voltage regulator.
Described controlling device and method eliminate when Loading voltage regulator works independently occur negative effect, add the working range of voltage regulator when different load, the Voltage Instability avoiding voltage adjusting device to cause and cause system voltage collapse; By using energy-accumulating power station, avoid by power quality problem derivative in reactive power compensation and other equipment pressure regulation processes; Solve energy storage device due to capacity limit to the problem that low-voltage regulation effect is limited.

Claims (7)

1. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator, it is characterized in that: described controlling device comprises Mobile energy storage power station, on-load voltage regulating device and supervisory control system, described Mobile energy storage power station is connected in parallel on rural power grids transmission line, described Mobile energy storage power station is used for for rural power load provides required active power to promote rural power grids line voltage distribution, described on-load voltage regulating device is serially connected on rural power grids transmission line, for promoting line voltage distribution by adjustment on load tap changer, supervisory control system is passed through feeder voltage, operating state and the relevant parameter of Mobile energy storage power station and Loading voltage regulator are monitored, realize the output control of energy-accumulating power station active power and the Regulation Control of Loading voltage regulator.
2. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 1, it is characterized in that: described Mobile energy storage power station comprises battery energy storage system, buck becomes and high-tension switch cabinet, between described battery energy storage system and buck become and buck become bidirectional data interaction between high-tension switch cabinet, described controlling device is connected in parallel on rural power grids transmission line by high-tension switch cabinet.
3. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 1, it is characterized in that: described on-load voltage regulating device comprises power transformer, vacuum circuit-breaker, automatic voltage regulator and the isolating switch of connecting successively, described on-load voltage regulating device is connected with rural power grids transmission line by isolating switch, one termination power transformer of bypass breaker and the node of vacuum circuit-breaker, another termination rural power grids transmission line of bypass breaker.
4. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 3, is characterized in that: be provided with lightning arrester between described vacuum circuit-breaker and automatic voltage regulator and between automatic voltage regulator and isolating switch.
5. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 3, is characterized in that: described automatic voltage regulator is bidirectional pressure regulating device, regulates on load tap changer for the direction of tide according to circuit.
6. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 3, it is characterized in that: described automatic voltage regulator comprises auto-type transformer, on load tap changer and controller, the whole coil of auto-type transformer is divided into three parts: series excitation coil, shunt wound coil, control coil; On load tap changer be can in load-carrying situation the switch of changeover contact, described controller comprises single-chip microcomputer, display circuit, key circuit, voltage sampling circuit, current sampling circuit, state input circuit, PORT COM, control output circuit and data storage circuitry.
7. the voltage controlling device based on Mobile energy storage power station and Loading voltage regulator according to claim 1, it is characterized in that: described supervisory control system is in real time to feeder voltage, electric current, voltage regulator pressure regulation gear, the voltage of energy-accumulating power station, temperature, electric current, SOC, DOD and present output power, input power, day input electricity, export electricity day, accumulative input electricity, the accumulative electricity that exports monitor, and formulate corresponding control strategy by Monitoring Data.
CN201520357579.7U 2015-05-29 2015-05-29 A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator Withdrawn - After Issue CN204597483U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520357579.7U CN204597483U (en) 2015-05-29 2015-05-29 A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520357579.7U CN204597483U (en) 2015-05-29 2015-05-29 A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator

Publications (1)

Publication Number Publication Date
CN204597483U true CN204597483U (en) 2015-08-26

Family

ID=53933596

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520357579.7U Withdrawn - After Issue CN204597483U (en) 2015-05-29 2015-05-29 A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator

Country Status (1)

Country Link
CN (1) CN204597483U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104868477A (en) * 2015-05-29 2015-08-26 国网电力科学研究院武汉南瑞有限责任公司 Voltage managing device and method based on movable energy storage power station and on-load voltage regulator
CN107800139A (en) * 2016-09-05 2018-03-13 张玉强 A kind of circuit pressure regulator
WO2018198053A1 (en) * 2017-04-27 2018-11-01 Edge Electrons Limited Apparatus for minimizing peak power demand on inverter in power supply with one or more switched reactive loads
CN114334392A (en) * 2021-12-30 2022-04-12 合肥华威自动化有限公司 Intelligent multifunctional medium-voltage line voltage regulator and power supply system comprising same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104868477A (en) * 2015-05-29 2015-08-26 国网电力科学研究院武汉南瑞有限责任公司 Voltage managing device and method based on movable energy storage power station and on-load voltage regulator
CN107800139A (en) * 2016-09-05 2018-03-13 张玉强 A kind of circuit pressure regulator
WO2018198053A1 (en) * 2017-04-27 2018-11-01 Edge Electrons Limited Apparatus for minimizing peak power demand on inverter in power supply with one or more switched reactive loads
CN110651423A (en) * 2017-04-27 2020-01-03 逸节电子有限公司 Apparatus for minimizing peak power requirements of an inverter in a power supply having one or more switched reactive loads
CN110651423B (en) * 2017-04-27 2023-02-28 逸节电子有限公司 Apparatus for minimizing peak power requirements of an inverter in a power supply
CN114334392A (en) * 2021-12-30 2022-04-12 合肥华威自动化有限公司 Intelligent multifunctional medium-voltage line voltage regulator and power supply system comprising same

Similar Documents

Publication Publication Date Title
CN104868477B (en) A kind of voltage controlling device and method based on Mobile energy storage power station and on-load voltage regulating device
CN102097793B (en) Multi-current converter unified power quality conditioning device for power distribution system
CN204597483U (en) A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator
CN202663185U (en) Series-parallel UPS (Uninterrupted Power Supply) with single inverter
CN103560541A (en) Fault ride-through control device and method for alternating/direct current mixed microgrid
CN202034781U (en) Chopped-mode reactive power continuous compensation device
CN103475032B (en) A kind of intelligent adapted electricity flexible control system
CN109406936A (en) Charging pile alarm and protection module
CN109347182A (en) Charging pile control unit
CN203983006U (en) Capacity and pressure regulating three-phase transformer
CN203632254U (en) Automatic reactive compensation intelligent power distribution transformer
CN109378887A (en) Charging pile control system
CN107749633A (en) A kind of distributing energy management strategies of the distributed generation system containing energy storage
CN105207326A (en) Novel structure for battery charging mode replacement common direct-current bus of new energy automobile
CN215322084U (en) Energy storage type direct current charging pile
CN204928324U (en) Charge mode novel structure of dc bus is altogether changed to new energy automobile battery
CN104009480A (en) Reactive voltage control method and system based on reactive voltage control device
CN104124044B (en) A kind of capacity and pressure regulating three-phase transformer
CN208433758U (en) A kind of reactive-load compensation equipment
CN206332455U (en) A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network
CN201466738U (en) Reactive power compensation device of grid
CN205846720U (en) A kind of low-voltage direct micro-capacitance sensor experiment porch
CN201199634Y (en) Electric network positive-negative reactive compensator
CN220190471U (en) Terminal low voltage of low voltage distribution network administers device
CN204559126U (en) Remote power-feeding power source generator

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Liu Fei

Inventor after: Lan Zhenbo

Inventor after: Li Aikui

Inventor after: Liu Bo

Inventor after: Jiang Guoyi

Inventor after: Liu Haibo

Inventor after: Xiao Bing

Inventor after: Wang Wei

Inventor after: Yuan Xiaodong

Inventor before: Liu Fei

Inventor before: Lan Zhenbo

Inventor before: Li Aikui

Inventor before: Liu Bo

Inventor before: Jiang Guoyi

Inventor before: Liu Haibo

Inventor before: Xiao Bing

Inventor before: Wang Wei

COR Change of bibliographic data
TR01 Transfer of patent right

Effective date of registration: 20160622

Address after: 430074 Hubei city of Wuhan province Wuchang Luo Yu Road, No. 143

Patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute

Patentee after: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD.

Patentee after: Electric Power Research Institute of Jiangsu Electric Power Company

Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143

Patentee before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute

Patentee before: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD.

AV01 Patent right actively abandoned

Granted publication date: 20150826

Effective date of abandoning: 20170829

AV01 Patent right actively abandoned