CN204243785U - A kind of distributed photovoltaic power generation micro-grid system - Google Patents
A kind of distributed photovoltaic power generation micro-grid system Download PDFInfo
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- CN204243785U CN204243785U CN201420815350.9U CN201420815350U CN204243785U CN 204243785 U CN204243785 U CN 204243785U CN 201420815350 U CN201420815350 U CN 201420815350U CN 204243785 U CN204243785 U CN 204243785U
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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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Abstract
The utility model discloses a kind of distributed photovoltaic power generation micro-grid system, comprising: photovoltaic cell component square formation and control device; Wherein, described photovoltaic cell component square formation comprises the photovoltaic electric pond square formation of several parallel connections; Described control device comprises: several DC lightning preventions conflux cabinet, to conflux the photovoltaic controller that cabinet output is connected with each described DC lightning prevention, for the batteries of store electrical energy, the photovoltaic DC-to-AC converter be connected with described photovoltaic controller output, and the AC distribution metering cabinet be connected with described photovoltaic DC-to-AC converter output; Each described photovoltaic electric pond square formation is confluxed between cabinet with each described DC lightning prevention and is connected by direct current cables, and described AC distribution metering cabinet is connected by ac cable with between external loading or public electric wire net.This distributed photovoltaic power generation micro-grid system is convenient to arrange nearby in more remote or that geological conditions is poor region, to reduce electric power transfer distance, thus reduces line loss, improves delivery of electrical energy efficiency.
Description
Technical field
The utility model relates to photovoltaic power generation technology, specifically relates to a kind of distributed photovoltaic power generation micro-grid system.
Background technology
Fossil energy (oil, natural gas, coal etc.) is the current main energy that consumes of the whole world, but along with the continuous exploitation of the mankind, the reserves of fossil energy constantly reduce, and most of fossil energy will be exploited totally in this century.In addition, due to can new increase greenhouse gas CO2 in the use procedure of fossil energy, simultaneously may production capacity some have the flue gas of pollution, threaten global ecological environment.Thus, the developing direction that more clean regenerative resource (water power, wind-powered electricity generation, solar energy, biological energy source, tidal energy etc.) is energy extraction utilization is from now on developed.
Solar energy is a kind of regenerative resource utilizing solar radiation energy, and distributed photovoltaic power generation refers in particular to employing photovoltaic module, solar energy is directly converted to the distributed generation system of electric energy.It is a kind of novel, tool generating with broad prospects for development and comprehensive utilization of energy mode.
Distributed photovoltaic power generation microgrid based on above-mentioned distributed photovoltaic power generation is a kind of organic system be jointly made up of load and micro battery and energy-storage units.Distributed photovoltaic power generation microgrid realizes conversion and the control of energy mainly through power electronic technology.Relative to electric power system (main electrical network), distributed photovoltaic power generation microgrid is a controllable in system, and it can respond at short notice with the needs of the main electrical network in satisfied outside; And for user, distributed photovoltaic power generation microgrid can meet the specific electric energy quality requirement of local load, and power supply reliability, reduction line loss etc. can be improved.
Distributed photovoltaic power generation microgrid has two kinds of basic operational modes, is namely incorporated into the power networks and independent operating.When distributed photovoltaic power generation microgrid and main electrical network are incorporated into the power networks, load can obtain supply of electric power from distributed photovoltaic power generation microgrid or public electric wire net.Abundant when sunshine, use photovoltaic generation as far as possible when photovoltaic generation electric power is enough, now electrical network is auxiliary; When sunshine is weak just to use main electrical network.When main electrical network occur various fault, disturbance or the quality of power supply do not meet load request time, distributed photovoltaic power generation microgrid is by disconnecting with main electrical network and be smoothly transitted into independent operating fast, independently-powered to guarantee that load is unaffected to load by distributed photovoltaic power generation microgrid self.
Because distributed photovoltaic power generation microgrid common at present is generally all arranged on open air, for the region that such as island, desert, grassland, high mountain etc. are more remote and geological conditions is poor, distributed photovoltaic power generation micro-grid system is limited to environmental constraints, make photo-voltaic power generation station and load at a distance of relatively far away, this just needs to extend transmission cable, but, increase transmission cable and can bring larger line loss, delivery of electrical energy efficiency is low, is therefore difficult to the need for electricity meeting load.
Utility model content
In order to solve the problem, the purpose of this utility model is to provide a kind of distributed photovoltaic power generation micro-grid system.
In order to achieve the above object, the utility model have employed following technical scheme:
A kind of distributed photovoltaic power generation micro-grid system, has such feature, comprising: photovoltaic cell component square formation, for the solar energy of reception being converted to electric energy and exporting in direct current mode; And control device, be delivered to external loading or public electric wire net after the direct current that photovoltaic cell component square formation exports is converted to alternating current; Wherein, photovoltaic cell component square formation comprises the photovoltaic electric pond square formation of several parallel connections; Control device comprises: several and photovoltaic electric pond square formation mutually one to one DC lightning prevention to conflux cabinet, to conflux the photovoltaic controller that cabinet output is connected with each DC lightning prevention, be connected with photovoltaic controller for the batteries of store electrical energy, the photovoltaic DC-to-AC converter be connected with photovoltaic controller output, and the AC distribution metering cabinet be connected with photovoltaic DC-to-AC converter output; Each photovoltaic electric pond square formation is confluxed between cabinet with each DC lightning prevention and is connected by direct current cables, and AC distribution metering cabinet is connected by ac cable with between external loading or public electric wire net.
Further, in the distributed photovoltaic power generation micro-grid system that the utility model provides, such feature can also be had, control device also comprises: the communication be connected with photovoltaic controller and environmental Kuznets Curves cabinet, the environmental monitoring unit of detection control apparatus inside and outside portion environmental parameter, and the thermostat unit of control set for adjusting internal temperature.
Further, in the distributed photovoltaic power generation micro-grid system that the utility model provides, can also have such feature, environmental monitoring unit is integrated with: environment detector, camera, and intelligent photoelectric smoke sensing detector.
Further, in the distributed photovoltaic power generation micro-grid system that the utility model provides, can also have such feature, thermostat unit comprises: several heating plates and several cooling fans.
Further, in the distributed photovoltaic power generation micro-grid system that the utility model provides, can also have such feature, the DC lightning prevention cabinet that confluxes is integrated with: DC fuse, DC circuit breaker, running state real-time monitoring module, and lightning-protection module.
The good effect that the utility model has on the basis of the above is:
The distributed photovoltaic power generation micro-grid system that the utility model provides has integral structure, direct current cables is adopted to connect photovoltaic cell component square formation and control device nearby, and, by ac cable, control device is connected to load or public electric wire net nearby, be convenient to arrange nearby in more remote or that geological conditions is poor region, to reduce electric power transfer distance, thus reduce line loss, improve delivery of electrical energy efficiency, meet the need for electricity of load.
Accompanying drawing explanation
Fig. 1 is the structural representation of distributed photovoltaic power generation micro-grid system in embodiment of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed the distributed photovoltaic power generation micro-grid system that the utility model provides by reference to the accompanying drawings.
As shown in Figure 1, the distributed photovoltaic power generation micro-grid system that the present embodiment provides comprises photovoltaic cell component square formation 1 and control device 2, and photovoltaic cell component square formation 1 is for being converted to electric energy by the solar energy of reception and exporting in direct current mode.Control device 2 is delivered to external loading or public electric wire net after being converted to alternating current for direct current photovoltaic cell component square formation 1 exported.
Photovoltaic cell component square formation 1 comprises the photovoltaic electric pond square formation 11 of several parallel connections, and each photovoltaic electric pond square formation 11 is composed in series by several photovoltaic battery panels.
Control device 2 comprises: several DC lightning preventions conflux cabinet 21, photovoltaic controller 22, batteries 25, photovoltaic DC-to-AC converter 23, AC distribution metering cabinet 24, communication and environmental Kuznets Curves cabinet 26, environmental monitoring unit 27, and thermostat unit 28.
Each DC lightning prevention conflux cabinet 21 respectively with each photovoltaic electric pond square formation phase one_to_one corresponding, concrete, each photovoltaic electric pond square formation is confluxed between cabinet 21 with each DC lightning prevention and is connected by direct current cables.Further, the conflux output of cabinet 21 of several DC lightning preventions adopts mode in parallel to be connected to the input of photovoltaic controller 22.
Batteries 25 for store electrical energy is connected with photovoltaic controller 22, and batteries 25 stores to conflux the direct current energy that cabinet 21 collects through DC lightning prevention, under the state of or unglazed photograph not enough in illumination by batteries 25 for load provides or electric energy supplement.
The output of photovoltaic controller 22 connects photovoltaic DC-to-AC converter 23, and photovoltaic DC-to-AC converter 23 is a kind of power adjusting devices be made up of semiconductor device, for the direct current exported by photovoltaic controller 22 is converted to alternating current.Photovoltaic DC-to-AC converter 23 in the present embodiment is made up of boosting loop and inversion bridge type return.Concrete, the dc voltage boost that boosting loop exports photovoltaic controller 22 exports the direct voltage needed for control to photovoltaic DC-to-AC converter 23; Then the direct voltage after boosting is converted efficiently to the alternating voltage of load conventional frequency again by inversion bridge type return.
AC distribution metering cabinet 24 is connected with photovoltaic DC-to-AC converter 23 output, and the output of AC distribution metering cabinet 24 is connected by ac cable with between external loading or public electric wire net.The alternating current that photovoltaic DC-to-AC converter 23 exports is delivered to external loading or electrical network by AC distribution metering cabinet 24, and realizes power, the metering of AC energy, and the electric energy conversion of each electric equipment, distribution and control.
Communication and environmental Kuznets Curves cabinet 26 are connected with photovoltaic controller 22, and provide working power by photovoltaic controller 22.Further, the signal input part of communication and environmental Kuznets Curves connects the signal output part of the signal output part of photovoltaic controller 22, the signal output part of photovoltaic DC-to-AC converter 23, the signal output part of AC distribution metering cabinet 24 and environmental monitoring unit 27 respectively.Communication and environmental Kuznets Curves to conflux gathering DC lightning prevention the electric parameter of the electric equipments such as cabinet 21, photovoltaic controller 22, photovoltaic DC-to-AC converter 23, AC distribution metering cabinet 24, environmental monitoring unit 27 and data, realize the unified operation monitoring of distributed photovoltaic power generation control system, the centralized management of data, and realize backstage centralized monitor by telecommunication system.Meanwhile, communication and environmental Kuznets Curves cabinet 26 are according to the operation of the data A.T.C regulon 28 collected.
Environmental monitoring unit 27 is for detection control apparatus 2 inside and outside portion environment, concrete, in the present embodiment, environmental monitoring unit 27 is integrated with: the environment detector of the intensity of sunshine of environment residing for Real-time Collection control device 2, wind speed, wind direction and humiture information, electric equipment in control device 2 is carried out to the camera of video monitor, and be arranged on the intelligent photoelectric smoke sensing detector of control device 2 inside top, by the combination of camera and intelligent photoelectric smoke sensing detector, automatic fire alarm function can be realized.
Further, the Monitoring Data information of the environmental monitoring unit 27 in the present embodiment can transfer to communication and environmental Kuznets Curves cabinet 26, thus Monitoring Data information can be sent to background monitoring system centralized control through communication and environmental Kuznets Curves cabinet 26.
In order to the extreme climate environment of high and cold or high temperature can be adapted to, make distributed photovoltaic power generation system can normal operation, the integrated control unit 2 that the present embodiment provides also is provided with the thermostat unit 28 for control set for adjusting 2 internal temperature, concrete, thermostat unit 28 comprises: several are to the heating plate carrying out heat temperature raising in control device 2 under low-temperature condition, and several are at high operating temperatures to the cooling fan carrying out air draft cooling in control device 2.
In the present embodiment, DC lightning prevention confluxes in cabinet 21 and is integrated with: the DC fuse preventing short circuit or overcurrent, for controlling the DC circuit breaker of break-make between photovoltaic cell component and photovoltaic controller 22 under normal condition, monitoring modular is used for detecting in real time running status, and prevents the lightning-protection module because thunderbolt or overvoltage cause photovoltaic cell component to damage.
The distributed photovoltaic power generation micro-grid system that the present embodiment provides has integral structure, direct current cables is adopted to connect photovoltaic cell component square formation and control device nearby, and, by ac cable, control device is connected to load or public electric wire net nearby, be convenient to arrange nearby in more remote or that geological conditions is poor region, to reduce electric power transfer distance, thus reduce line loss, improve delivery of electrical energy efficiency, meet the need for electricity of load.In addition, by arranging environmental monitoring unit and thermostat unit on control device, control device also can normally be worked under more severe natural environment state.
Distributed photovoltaic power generation micro-grid system involved by certain the utility model is not merely defined in the structure in the present embodiment, any equivalent modifications of carrying out the utility model and substituting also all in category of the present utility model.
Claims (5)
1. a distributed photovoltaic power generation micro-grid system, is characterized in that, comprising:
Photovoltaic cell component square formation, for being converted to electric energy by the solar energy of reception and exporting in direct current mode; With
Control device, is delivered to external loading or public electric wire net after the direct current that described photovoltaic cell component square formation exports is converted to alternating current;
Wherein, described photovoltaic cell component square formation comprises the photovoltaic electric pond square formation of several parallel connections;
Described control device comprises: several and described photovoltaic electric pond square formation mutually one to one DC lightning prevention to conflux cabinet, to conflux the photovoltaic controller that cabinet output is connected with each described DC lightning prevention, be connected with described photovoltaic controller for the batteries of store electrical energy, the photovoltaic DC-to-AC converter be connected with described photovoltaic controller output, and the AC distribution metering cabinet be connected with described photovoltaic DC-to-AC converter output;
Each described photovoltaic electric pond square formation is confluxed between cabinet with each described DC lightning prevention and is connected by direct current cables, and described AC distribution metering cabinet is connected by ac cable with between external loading or public electric wire net.
2. distributed photovoltaic power generation micro-grid system according to claim 1, is characterized in that:
Described control device also comprises: the communication be connected with described photovoltaic controller and environmental Kuznets Curves cabinet, detects the environmental monitoring unit of described control device inside and outside portion environment, and regulates the thermostat unit of described control device internal temperature.
3. distributed photovoltaic power generation micro-grid system according to claim 2, is characterized in that:
Described environmental monitoring unit is integrated with: environment detector, camera, and intelligent photoelectric smoke sensing detector.
4. distributed photovoltaic power generation micro-grid system according to claim 2, is characterized in that:
Described thermostat unit comprises: several heating plates and several cooling fans.
5. distributed photovoltaic power generation micro-grid system according to claim 1, is characterized in that:
The described DC lightning prevention cabinet that confluxes is integrated with: DC fuse, DC circuit breaker, running state real-time monitoring module, and lightning-protection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420815350.9U CN204243785U (en) | 2014-12-19 | 2014-12-19 | A kind of distributed photovoltaic power generation micro-grid system |
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| CN201420815350.9U CN204243785U (en) | 2014-12-19 | 2014-12-19 | A kind of distributed photovoltaic power generation micro-grid system |
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| CN204243785U true CN204243785U (en) | 2015-04-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356890A (en) * | 2016-10-07 | 2017-01-25 | 国网青海省电力公司海东供电公司 | Distributed photovoltaic power generation-based power supply system for township power supply station |
| CN108134386A (en) * | 2018-01-04 | 2018-06-08 | 江苏绿国新能源科技有限公司 | A kind of distributed energy sale of electricity control device |
| CN113852118A (en) * | 2021-08-11 | 2021-12-28 | 华翔翔能科技股份有限公司 | Photovoltaic phase-sequence-free power generation system |
| CN114024324A (en) * | 2021-11-03 | 2022-02-08 | 福建网能科技开发有限责任公司 | High-voltage reactive power compensation system for solar photovoltaic power generation |
-
2014
- 2014-12-19 CN CN201420815350.9U patent/CN204243785U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356890A (en) * | 2016-10-07 | 2017-01-25 | 国网青海省电力公司海东供电公司 | Distributed photovoltaic power generation-based power supply system for township power supply station |
| CN108134386A (en) * | 2018-01-04 | 2018-06-08 | 江苏绿国新能源科技有限公司 | A kind of distributed energy sale of electricity control device |
| CN113852118A (en) * | 2021-08-11 | 2021-12-28 | 华翔翔能科技股份有限公司 | Photovoltaic phase-sequence-free power generation system |
| CN114024324A (en) * | 2021-11-03 | 2022-02-08 | 福建网能科技开发有限责任公司 | High-voltage reactive power compensation system for solar photovoltaic power generation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221116 Address after: 441000 No. 59, Guanyu Road, Tuanshan Town, Xiangyang High tech Development Zone, Hubei Province Patentee after: Hubei Chasri New Energy Technology Co.,Ltd. Address before: 441104 No. 1, Zhuiri Road, Xiangyang Hi tech Industrial Development Zone, Xiangfan City, Hubei Province Patentee before: HUBEI SURPASS SUN ELECTRIC Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 441000 No. 59, Guanyu Road, Tuanshan Town, Xiangyang High tech Development Zone, Hubei Province Patentee after: Borg Warner New Energy (Xiangyang) Co.,Ltd. Address before: 441000 No. 59, Guanyu Road, Tuanshan Town, Xiangyang High tech Development Zone, Hubei Province Patentee before: Hubei Chasri New Energy Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |