CN205863673U - The energy-conservation Intelligent control cabinet of photovoltaic generating system - Google Patents
The energy-conservation Intelligent control cabinet of photovoltaic generating system Download PDFInfo
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- CN205863673U CN205863673U CN201620634814.5U CN201620634814U CN205863673U CN 205863673 U CN205863673 U CN 205863673U CN 201620634814 U CN201620634814 U CN 201620634814U CN 205863673 U CN205863673 U CN 205863673U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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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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Abstract
The energy-conservation Intelligent control cabinet of a kind of photovoltaic generating system that this utility model relates to, it is characterized in that it includes electrical primary part and (1) and electric secondary part (2), wherein the front end of electrical primary part (1) is connected by the first terminal (3) and electrical network bus (4), and the rear end of electrical primary part (1) is connected by the second terminal (5) and box type transformer (6).The energy-conservation Intelligent control cabinet of this utility model photovoltaic generating system has simple in construction, is easy to that construction, strong adaptability, safety be good, the advantage of good energy saving property.
Description
Technical field
This utility model relates to a kind of energy-conservation Intelligent control cabinet of photovoltaic generating system.
Background technology
After whole photo-voltaic power generation station puts into operation, recover after collection line fault is got rid of in transmission process, at no-load transformer
Switching on power moment, owing to transformer core exists remanent magnetism and the problem at electrical network switching-on phase angle, transformator is likely to occur magnetic
, there is the biggest dash current in saturated phenomenon.Transformer excitation flow can produce impact to differential protection, causes protection device by mistake
Action.If do not taked adequate measures, then may make circuit breaker trip, so that transformator can not access electrical network smoothly.Transformator
Because combined floodgate dash current produces considerable electromagnetic force, make Guan Bi winding deformation, dislocation or insulation breakdown, and then affect power system
Stable operation.
Photovoltaic energy-saving cabinet technology at present, such as CN201520575268.8, " tandem type for grid-connected photovoltaic system saves
Electric installation ", CN201520575018.4 " for the parallel connection type battery saving arrangement of grid-connected photovoltaic system ".Its composition is as follows: by
Switch module and sequencing contro are constituted.Wherein switch module is by two vacuum contactors, high-voltage power resistance, Zinc-Oxide Arrester
Composition.Sequencing contro parts are made up of photosensitive switch, relay, time-delay relay, relay contact etc..This device switch module
Major defect is as follows:
1, safety is poor: vacuum circuit breaker does not possess short-circuit tripping operation ability, when circuit generation open circuit, due to circuit not
Energy tripping automatically, is susceptible to the accident such as fire, device damage.
2, the actual motion temperature of high-tension resistive is not measured, it is impossible to avoid in particular cases, the thermal runaway of resistance
Cause the accident such as fire, device damage.
3, metal zinc oxide protector installation site is the most right, fails effectively to protect the overvoltage of transformator.
This device sequential parts major defect is as follows:
1, sequencing contro parts discrete device realizes, and poor reliability, automaticity are low:
2, there is aging practical problem in photosensitive switch, serves as sequential trigger unit concordance poor.And on daytime power station
When side's sky is sailed in short-term if any black clouds, easy false triggering controls logic, causes mistakenly stop machine.
3, the control time delay of equipment all has time-delay relay, time-delay relay output node to complete, control complex circuit,
Unreliable.
4, do not gather the running parameters such as high-voltage switch gear state, high-tension resistive temperature, equipment working voltage electric current, be unfavorable for reality
The on-site supervision of border equipment.
5, lack and the interface of power station communication, be unfavorable for power station synthetical automation.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that a kind of simple in construction, be easy to construction, strong adaptability,
Safety is good, the energy-conservation Intelligent control cabinet of the photovoltaic generating system of good energy saving property.
The purpose of this utility model is achieved in that
A kind of energy-conservation Intelligent control cabinet of photovoltaic generating system, it includes electrical primary part and electric secondary part, wherein
The front end of electrical primary part is connected by the first terminal and electrical network bus, the rear end of electrical primary part by the second terminal and
Box type transformer connects；
Described electrical primary part includes vacuum circuit breaker, vacuum contactor, high-voltage power resistance, voltage transformer, electricity
Current transformer, the first electrification display, the second electrification display and Zinc-Oxide Arrester, described vacuum circuit breaker and vacuum
Catalyst is series on the main road of electrical primary part from front to back, high-voltage power resistor coupled in parallel in vacuum contactor two ends, institute
The primary side stating current transformer is connected on the main road between vacuum circuit breaker and vacuum contactor, described voltage transformer
One time winding is connected on the main road between vacuum circuit breaker and current transformer, and described first electrification display is connected to electric current
On main road between transformer and vacuum contactor, described second electrification display is connected to the main road at vacuum contactor rear
On, described Zinc-Oxide Arrester is connected on the main road at vacuum contactor rear；
Described electric secondary part includes intelligent controller, and described intelligent controller is provided with magnitude of current interface, voltage
Amount interface, 485 interfaces, RJ45 interface, GPS interface, temperature control acquisition interface and I/O interface, wherein magnitude of current interface and electric current
The secondary side of transformer connects, and voltage interface is connected with the Secondary Winding of voltage transformer, and 485 interfaces are connected with RJ45 interface
External communication interface, interface when GPS interface connects GPS pair, temperature control acquisition interface connects high-voltage power resistance, and I/O interface connects
The auxiliary contact of electrical primary part.
Compared with prior art, the beneficial effects of the utility model are:
1, owing to using soft Starting Technology, resistor power is little, and instrument size can be consistent with station inner high voltage cabinet size.This
Sample equipment Foundations can be substantially uniform, facilitates the civil engineering of photovoltaic plant.
2, energy-saving soft start Core Feature is completed by Special intelligent controller, to running situation, soft separating brake, soft
Close a floodgate, all can accurately judge, and reliably control.Controller has GPS time adjustment function, has according to sunrise, sunset time automatic
Equipment is accessed and exits electrical network by ground.Control device to there is short circuit, cross the defencive functions such as stream, and the temperature to high-voltage power resistance
Monitor in real time, prevent thermal runaway and the situation such as fire, equipment fault occurs.Separating brake, combined floodgate delay time can pass through
User-machine interface arranges and preserves, and engineering adaptability is strong.
3, power station instruction can also be accepted by monitoring backstage accessed by equipment and exit electrical network.
4, not only solve transformator open circuit loss at night problem, by night, zero load box type transformer is cut from electrical network
Remove, it is to avoid no-load transformer and cable occur LC resonance at night, because producing resonance overvoltage, and then cause the spark gap to damage
Generation with the problem such as end explosion, it is possible to ensure that system long-term safety is reliably run.
5, by night no-load transformer being excised from electrical network, the reactive loss of photovoltaic plant area close to zero, power station without
Merit equipment (SVG) can be out of service, not only increases the reliability of SVG, it is possible to saves the power consumption of SVG equipment.General 20MW
The SVG of 4Mvar is joined in power station, and needing blood pressure lowering varying capacity is 4Mva, reaches 3-4 ten thousand degree by saving open circuit loss calculating economize on electricity in a year.
Therefore the energy-conservation Intelligent control cabinet of this utility model photovoltaic generating system has simple in construction, is easy to construction, adaptability
By force, safety is good, the advantage of good energy saving property.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of electrical primary part.
Fig. 3 is the structural representation of electric secondary part.
Wherein:
Electrical primary part 1, vacuum circuit breaker 1.1, vacuum contactor 1.2, high-voltage power resistance 1.3, voltage transformer
1.4, current transformer the 1.5, first electrification display the 1.6, second electrification display 1.7, Zinc-Oxide Arrester 1.8
Electric secondary part 2, intelligent controller 2.1, magnitude of current interface 2.2, voltage interface 2.3,485 interface 2.4,
RJ45 interface 2.5, GPS interface 2.6, temperature control acquisition interface 2.7, I/O interface 2.8
The first terminal 3
Electrical network bus 4
Second terminal 5
Box type transformer 6.
Detailed description of the invention
In order to thoroughly solve the open circuit loss problem of photovoltaic system box type transformer, it is proposed that a kind of photovoltaic generating system joint
Can Intelligent control cabinet, the energy-conservation Intelligent control cabinet of photovoltaic generating system utilize spark gap and high pressure divide/switching-on resistance realizes behaviour
Making the suppression of overvoltage and excitation surge current, to ensure that equipment can carry out suiting operation the most safely, night will rise buckling
Depressor exits main electrical network and avoids open circuit loss, reaches purpose of economizing on electricity.
One maximum feature of photovoltaic system box type transformer, is to be completely in no-load running state night.Now electrical network
Being equivalent to the power supply of transformator, transformator absorbs grid power, causes energy consumption.With a 35kV 1MW photovoltaic generation subsystem
As a example by system, configuring the 35kV transformator that 1 capacity is 1000kVA, its open circuit loss is about 1700W (open circuit loss 0.17%),
(every day generate electricity 11.5h, have 12.5h no-load running) annual power consumption is about 7756 degree.Save by installing photovoltaic generating system additional
Energy Intelligent control cabinet, it is possible to this 1MW subsystem was come from electrical network disengaging at night, thus effectively prevent the sky of transformator
Load-loss, brings direct economic benefit for enterprise.
Seeing Fig. 1 ~ Fig. 3, a kind of energy-conservation Intelligent control cabinet of photovoltaic generating system, it includes electrical primary part and 1 and electricity
Gas two second part 2, wherein the front end of electrical primary part 1 is connected by the first terminal 3 and electrical network bus 4, electrical primary part 1
Rear end connected by the second terminal 5 and box type transformer 6.
Described electrical primary part 1 includes vacuum circuit breaker 1.1, vacuum contactor 1.2, high-voltage power resistance 1.3, voltage
Transformer 1.4, current transformer the 1.5, first electrification display the 1.6, second electrification display 1.7 and Zinc-Oxide Arrester
1.8, described vacuum circuit breaker 1.1 and vacuum contactor 1.2 are series on the main road of electrical primary part 1 from front to back, high
Pressure power resistor 1.3 is parallel to vacuum contactor 1.2 two ends, and the primary side of described current transformer 1.5 is connected to vacuum circuit breaker
On main road between device 1.1 and vacuum contactor 1.2, a winding of described voltage transformer 1.4 is connected to vacuum circuit breaker
On main road between 1.1 and current transformer 1.5, described first electrification display 1.6 is connected to current transformer 1.5 and vacuum
On main road between catalyst 1.2, described second electrification display 1.7 is connected on the main road at vacuum contactor 1.2 rear, institute
State Zinc-Oxide Arrester 1.8 to be connected on the main road at vacuum contactor 1.2 rear.
Described electric secondary part 2 includes intelligent controller 2.1, described intelligent controller 2.1 is provided with the magnitude of current and connects
Mouth 2.2, voltage interface 2.3,485 interface 2.4, RJ45 interface 2.5, GPS interface 2.6, temperature control acquisition interface 2.7 and I/O
Interface 2.8, wherein magnitude of current interface 2.2 is connected with the secondary side of current transformer 1.5, voltage interface 2.3 and mutual induction of voltage
The Secondary Winding of device 1.4 connects, and 485 interfaces 2.4 are connected external communication interface with RJ45 interface 2.5, and GPS interface 2.6 connects GPS
Pair time interface, temperature control acquisition interface 2.7 connects high-voltage power resistance 1.3, and I/O interface 2.8 connects the auxiliary of electrical primary part 1
Contact.Vacuum circuit breaker 1.1 and the separating brake of vacuum contactor 1.2 of electrical primary part 1 is realized by electric secondary part 2
With combined floodgate.
Operation principle:
1, during system divide-shut brake, system can produce overbump voltage, and the insulation on circuit, transformator affects, due to second
Be provided with metal zinc oxide lightning arrester at terminal, can effective over-voltage, protection transformator and circuit.
2, start-up course:
The energy-conservation Intelligent control cabinet of photovoltaic generating system between box type transformer outfan and electrical network bus, Based Intelligent Control
Device detecting system voltage, electric current and vacuum circuit breaker, vacuum contactor status signal.When starting parallel network power generation, intelligence control
Device processed first detects vacuum contactor, it is ensured that vacuum contactor is gate-dividing state, and Guan Bi vacuum circuit breaker 0.5 second, now due to height
The damping action of pressure power resistor, switching overvoltage during the unloaded box type transformer of suppression input and excitation surge current, then safety
Guan Bi vacuum contactor, high-voltage power resistance is shorted, the soft start operation of completion system.
3, process is disconnected:
Night, photovoltaic system stopped generating, and box type transformer needs to depart from main electrical network, the most first disconnects vacuum contactor 1
Second so that high-voltage power resistance first accesses electrical network increases the damping of system, is then safely separated vacuum circuit breaker, due to high pressure merit
The effect of rate resistance, it is suppressed that excitation surge current and switching overvoltage, the soft breaking operation of completion system.
4, when circuit generation open circuit, intelligent controller sends trip signal, and vacuum circuit breaker trips, and faulty line is cut
Remove.
5, when high-voltage power resistance occurs that temperature is too high, intelligent controller sends trip signal, now can overhaul height
Pressure power resistor.
6, when backstage, power station needs to start or stop the energy-conservation Intelligent control cabinet of this photovoltaic generating system, RJ45 can be passed through
Interface or 485 interfaces, flourishing for order intelligent controller, are performed start stop operation order by intelligence control device.
The economic worth of the popularization of the energy-conservation Intelligent control cabinet of this utility model photovoltaic generating system:
1, the energy-conservation Intelligent control cabinet of photovoltaic generating system has filled up the blank in photovoltaic generating system economize on electricity field, by 20MW light
Overhead utility 2 energy-conservation Intelligent control cabinets of photovoltaic generating system of configuration are basis reference, then 1GW power station can configure 100 photovoltaics and sends out
Electricity energy saving of system Intelligent control cabinet.Every energy-conservation Intelligent control cabinet of photovoltaic generating system is based on the output value 150,000 RMB, then national
Annual 10GW power plant construction scale of pressing, then annual equipment needed thereby is worth in 1.5 hundred million RMB, can form certain industry size.
Current domestic photovoltaic plant scale has reached 100GW scale, as considered power station equipment transformation in the past, and the industry rule that scrap build brings
Mould is considerable.
2, based on every average annual energy output 28000000 degree in 20MW power station, then 140,000 degree are saved every year by power-saving technology,
Energy-conservation be equivalent to 0.5% installed capacity electricity.Press 10GW power plant construction scale every year by the whole nation, use energy-conservation rear technology,
Being equivalent to build less 2.5 20MW power stations, current photovoltaic plant construction cost is at 7 yuan/w, and calculated savings expense is accordingly
The construction cost of 2.5*1.4 hundred million=3.5 hundred million.There is the value at full Spread in China.
Claims (1)
1. the energy-conservation Intelligent control cabinet of photovoltaic generating system, it is characterised in that it includes electrical primary part and (1) and electric
Two second part (2), wherein the front end of electrical primary part (1) is connected by the first terminal (3) and electrical network bus (4), and electric one
The rear end of second part (1) is connected by the second terminal (5) and box type transformer (6)；
Described electrical primary part (1) include vacuum circuit breaker (1.1), vacuum contactor (1.2), high-voltage power resistance (1.3),
Voltage transformer (1.4), current transformer (1.5), the first electrification display (1.6), the second electrification display (1.7) and oxygen
Changing zinc spark gap (1.8), described vacuum circuit breaker (1.1) and vacuum contactor (1.2) are series at electrical primary from front to back
Partly on the main road of (1), high-voltage power resistance (1.3) is parallel to vacuum contactor (1.2) two ends, described current transformer
(1.5) primary side is connected on the main road between vacuum circuit breaker (1.1) and vacuum contactor (1.2), described mutual induction of voltage
Winding of device (1.4) is connected on the main road between vacuum circuit breaker (1.1) and current transformer (1.5), and described first
Electrification display (1.6) is connected on the main road between current transformer (1.5) and vacuum contactor (1.2), described second band
Electricity display (1.7) is connected on the main road at vacuum contactor (1.2) rear, and described Zinc-Oxide Arrester (1.8) is connected to very
On the main road at empty catalyst (1.2) rear；
Described electric secondary part (2) includes that intelligent controller (2.1), described intelligent controller are provided with the magnitude of current on (2.1)
Interface (2.2), voltage interface (2.3), 485 interfaces (2.4), RJ45 interface (2.5), GPS interface (2.6), temperature control collection connect
Mouth (2.7) and I/O interface (2.8), wherein magnitude of current interface (2.2) is connected with the secondary side of current transformer (1.5), voltage
Amount interface (2.3) is connected with the Secondary Winding of voltage transformer (1.4), outside 485 interfaces (2.4) are connected with RJ45 interface (2.5)
Portion's communication interface, interface when GPS interface (2.6) connects GPS pair, temperature control acquisition interface (2.7) connects high-voltage power resistance
(1.3), I/O interface (2.8) connects the auxiliary contact of electrical primary part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620634814.5U CN205863673U (en) | 2016-06-24 | 2016-06-24 | The energy-conservation Intelligent control cabinet of photovoltaic generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620634814.5U CN205863673U (en) | 2016-06-24 | 2016-06-24 | The energy-conservation Intelligent control cabinet of photovoltaic generating system |
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| Publication Number | Publication Date |
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| CN205863673U true CN205863673U (en) | 2017-01-04 |
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ID=57637226
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049272A (en) * | 2020-02-11 | 2020-04-21 | 赵晓光 | Energy-saving control system and control method of current collection circuit |
-
2016
- 2016-06-24 CN CN201620634814.5U patent/CN205863673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049272A (en) * | 2020-02-11 | 2020-04-21 | 赵晓光 | Energy-saving control system and control method of current collection circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215600 Building 1, north side of Jintang West Road, yangshe town (Tangshi Street), Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Suzhou Aikang Energy Group Co.,Ltd. Address before: 215600 Building 1, north side of Jintang West Road, yangshe town (Tangshi Street), Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: SUZHOU AIKANG ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |