CN104485885A - Integrated control device applied to distributed photovoltaic power generation system - Google Patents
Integrated control device applied to distributed photovoltaic power generation system Download PDFInfo
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- CN104485885A CN104485885A CN201410799880.3A CN201410799880A CN104485885A CN 104485885 A CN104485885 A CN 104485885A CN 201410799880 A CN201410799880 A CN 201410799880A CN 104485885 A CN104485885 A CN 104485885A
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- 238000010248 power generation Methods 0.000 title claims abstract description 28
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 230000002265 prevention Effects 0.000 claims description 26
- 238000005304 joining Methods 0.000 claims description 20
- 238000012806 monitoring device Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
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- 238000010438 heat treatment Methods 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 description 3
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses an integrated control device applied to a distributed photovoltaic power generation system. The integrated control device comprises a plurality of direct current lightning protection confluence units in parallel connection, a photovoltaic inverter for converting direct current into alternating current, and an alternating current distribution metering cabinet for transmitting the alternating current output by the photovoltaic inverter to an external load or a power grid. The integrated control device is characterized by further comprising a box, wherein the direct current lightning protection confluence units, the photovoltaic inverter and the alternating current distribution metering cabinet are arranged in the box. The integrated control device can be assembled and debugged in a factory; in addition, the assembled and debugged integrated control device can be directly transported to a photovoltaic power station for use as a whole; and the device has the advantages of high mounting and debugging efficiency, time saving and labor saving.
Description
Technical field
The present invention relates to photovoltaic power generation technology, specifically relate to a kind of integrated control unit being applied to distributed photovoltaic power generation 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 system refers 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 system is a kind of organic system be jointly made up of load and micro battery and energy storage device.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.
For the region that the more remote natural environments such as such as island, desert, grassland, high mountain are more severe, because of by environmental limitations, the equipment conveying difficulty of distributed photovoltaic power generation system, execution conditions are difficult.Further, because the distribution component of the photovoltaic generating systems such as the inverter in distributed photovoltaic power generation system and power distribution cabinet all needs the scene that is transported to assembly and adjustment again.Therefore, there is the problem that construction period is longer, construction cost is high.In addition, because distributed photovoltaic power generation system common at present is generally all arranged on open air, the intrasystem device of distributed photovoltaic power generation (as power electronic device, communication control equipment etc.) is comparatively large by adverse circumstances (high temperature, high and cold, high humility, strong wind, the sand and dust etc.) impact of above-mentioned region, and this just has a strong impact on the normal operation generation of distributed photovoltaic power generation system.
Summary of the invention
For above-mentioned distributed photovoltaic power generation system Problems existing, the object of the present invention is to provide a kind of integrated control unit being applied to distributed photovoltaic power generation system.
In order to achieve the above object, present invention employs following technical scheme:
A kind of integrated control unit being applied to distributed photovoltaic power generation system, there is such feature, comprise: the DC lightning prevention joining unit of several parallel connections, direct current is converted to the photovoltaic DC-to-AC converter of alternating current, the alternating current that photovoltaic DC-to-AC converter exports is delivered to the AC distribution metering cabinet of external loading or electrical network, and casing, wherein, DC lightning prevention joining unit, photovoltaic DC-to-AC converter and AC distribution metering cabinet are all arranged in casing.
Further, in integrated control unit provided by the invention, can also have such feature, also comprise: photovoltaic controller, the input of photovoltaic controller connects DC lightning prevention joining unit, and the output of photovoltaic controller connects photovoltaic DC-to-AC converter; Be connected photovoltaic controller and be used for the batteries of store electrical energy, and batteries and photovoltaic controller are all arranged in casing.
Further, in integrated control unit provided by the invention, such feature can also be had: also comprise: to be arranged in casing and the communication be connected with photovoltaic controller and environmental Kuznets Curves cabinet, detect the environment monitoring device of casing inside and outside portion environment, and regulate the temperature-adjusting device of box interior temperature.
Further, in integrated control unit provided by the invention, can also have such feature, environment monitoring device is integrated with: environment detector, camera, and intelligent photoelectric smoke sensing detector.
Further, in integrated control unit provided by the invention, can also have such feature, temperature-adjusting device comprises: several heating plates and several cooling fans.
Further, in integrated control unit provided by the invention, can also have such feature, DC lightning prevention joining unit is integrated with: DC fuse, DC circuit breaker, monitoring modular, and lightning-protection module.
Further, in integrated control unit provided by the invention, such feature can also be had: DC lightning prevention joining unit is that DC lightning prevention confluxes cabinet or DC lightning prevention header box.
Further, in integrated control unit provided by the invention, such feature can also be had: casing is metal cabinet.
The good effect that the present invention has on the basis of the above is:
Integrated control unit provided by the invention can complete assembling and debugging efforts in factory, and, the integrated control unit completing assembling and debugging can be used as entirety and transports directly to photovoltaic plant use, has installation, debugging efficiency is high, time saving and energy saving advantage.In addition, by arranging environment monitoring device and temperature-adjusting device on casing, integrated control unit also can normally be worked under more severe natural environment state.
Accompanying drawing explanation
Fig. 1 is the vertical view of integrated control unit in embodiments of the invention.
Fig. 2 is the cutaway view along A-A gained.
Fig. 3 is the cutaway view along B-B gained.
Fig. 4 is the circuit diagram of integrated control unit in embodiments of the invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed integrated control unit provided by the invention by reference to the accompanying drawings.
As shown in Figure 1 to Figure 3, the integrated control unit that the present embodiment provides is applied to distributed photovoltaic power generation system, this integrated control unit comprises: two DC lightning prevention joining unit 1, photovoltaic controller 2, photovoltaic DC-to-AC converter 3, AC distribution metering cabinet 4, batteries 5, communication and environmental Kuznets Curves cabinet 6, environment monitoring device 7 as shown in Figure 4, temperature-adjusting device 8 as shown in Figure 4, and casing 9.And, DC lightning prevention joining unit 1, photovoltaic controller 2, photovoltaic DC-to-AC converter 3, AC distribution metering cabinet 4, batteries 5, communication and environmental Kuznets Curves cabinet 6, and temperature-adjusting device 8 is all arranged in casing 9, in the present embodiment, casing 9 is by the metal metal cabinet such as steel or aluminium, concrete, and casing 9 can be that container or case become shell.
Concrete, as shown in Figure 4, several DC lightning prevention joining unit 1 are corresponding is respectively connected to photovoltaic cell component 10, and several DC lightning prevention joining unit 1 adopt mode in parallel to be connected to the input of photovoltaic controller 2.
Batteries 5 for store electrical energy connects photovoltaic controller 2 equally.Concrete, batteries 5 stores the direct current energy collected through DC lightning prevention joining unit 1, under the state of or unglazed photograph not enough in illumination by batteries 5 for load provides or electric energy supplement.
The output of photovoltaic controller 2 connects photovoltaic DC-to-AC converter 3, and photovoltaic DC-to-AC converter 3 is a kind of power adjusting devices be made up of semiconductor device, for the direct current exported by photovoltaic controller 2 is converted to alternating current.Photovoltaic DC-to-AC converter 3 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 2 exports the direct voltage needed for control to photovoltaic DC-to-AC converter 3; Then the direct voltage after boosting is converted efficiently to the alternating voltage of load conventional frequency again by inversion bridge type return.
The alternating current that photovoltaic DC-to-AC converter 3 exports is delivered to external loading or electrical network by AC distribution metering cabinet 4, and realizes power, the metering of AC energy, and the electric energy conversion of each electric equipment, distribution and control.
In the present embodiment, be integrated with in DC lightning prevention joining unit 1: the DC fuse preventing short circuit or overcurrent, for controlling the DC circuit breaker of break-make between photovoltaic cell component 10 and photovoltaic controller 2 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.Wherein, DC lightning prevention joining unit be DC lightning prevention conflux in cabinet or DC lightning prevention header box any one.
Communication and environmental Kuznets Curves cabinet 6 are connected with photovoltaic controller 2, provide working power by photovoltaic controller 2.Further, the signal input part of communication and environmental Kuznets Curves 6 connects the signal output part of the signal output part of photovoltaic controller 2, the signal output part of photovoltaic DC-to-AC converter 3, the signal output part of AC distribution metering cabinet 4 and environment monitoring device 7 respectively.Communication and environmental Kuznets Curves 6 will gather electric parameter and the data of the electric equipments such as DC lightning prevention joining unit 1, photovoltaic controller 2, photovoltaic DC-to-AC converter 3, AC distribution metering cabinet 4, environment monitoring device 7, 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 6 are according to the operation of the Data Control temperature-adjusting device 8 collected.
As shown in Figure 2 and Figure 4, environment monitoring device 7 is for detecting the inside and outside portion environment of casing 9, concrete, in the present embodiment, environment monitoring device 7 is integrated with: the environment detector of the intensity of sunshine of environment residing for Real-time Collection casing 9, wind speed, wind direction and humiture information, electric equipment in casing 9 is carried out to the camera of video monitor, and be arranged on the intelligent photoelectric smoke sensing detector 71 of casing 9 inside top, by the combination of camera and intelligent photoelectric smoke sensing detector 71, automatic fire alarm function can be realized.
Further, the Monitoring Data information of the environment monitoring device 7 in the present embodiment can transfer to communication and environmental Kuznets Curves cabinet 6, thus Monitoring Data information can be sent to backstage centralized control through communication and environmental Kuznets Curves cabinet 6.
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, in the integrated control unit that the present embodiment provides, temperature-adjusting device 8 is for regulating box interior temperature, concrete, temperature-adjusting device 8 comprises: several are to the heating plate 81 carrying out heat temperature raising in casing 9 under low-temperature condition, and several are at high operating temperatures to the cooling fan 82 carrying out air draft cooling in casing 9.
The integrated control unit that the present embodiment provides can complete assembling and debugging efforts in factory, and, the integrated control unit completing assembling and debugging can be used as entirety and transports directly to photovoltaic plant use, has installation, debugging efficiency is high, time saving and energy saving advantage.In addition, by arranging environment monitoring device and temperature-adjusting device on casing, integrated control unit also can normally be worked under more severe natural environment state.
Certainly integrated control unit involved in the present invention is not merely defined in the structure in the present embodiment, any equivalent modifications of carrying out the present invention and substituting also all in category of the present invention.
In the present embodiment, be provided with two DC lightning prevention joining unit in parallel in casing, but integrated control unit provided by the invention, can according to the DC lightning prevention joining unit of the multiple parallel connection of array scale relative set of photovoltaic cell component.
Claims (8)
1. one kind is applied to the integrated control unit of distributed photovoltaic power generation system, comprise: the DC lightning prevention joining unit of several parallel connections, direct current is converted to the photovoltaic DC-to-AC converter of alternating current, and the alternating current that described photovoltaic DC-to-AC converter exports is delivered to the AC distribution metering cabinet of external loading or electrical network, it is characterized in that: also comprise casing, wherein, described DC lightning prevention joining unit, described photovoltaic DC-to-AC converter and described AC distribution metering cabinet are all arranged in described casing.
2. integrated control unit according to claim 1, is characterized in that:
Also comprise: photovoltaic controller, the input of described photovoltaic controller connects described DC lightning prevention joining unit, and the output of described photovoltaic controller connects described photovoltaic DC-to-AC converter; With
Connect the batteries of described photovoltaic controller for store electrical energy,
Further, described batteries and described photovoltaic controller are all arranged in described casing.
3. integrated control unit according to claim 1, is characterized in that:
Also comprise: to be arranged in described casing and the communication be connected with described photovoltaic controller and environmental Kuznets Curves cabinet, to detect the environment monitoring device of described casing inside and outside portion environment, and regulate the temperature-adjusting device of described box interior temperature.
4. integrated control unit according to claim 3, is characterized in that:
Described environment monitoring device is integrated with: environment detector, camera, and intelligent photoelectric smoke sensing detector.
5. integrated control unit according to claim 3, is characterized in that:
Described temperature-adjusting device comprises: several heating plates and several cooling fans.
6. integrated control unit according to claim 1, is characterized in that:
Described DC lightning prevention joining unit is integrated with: DC fuse, DC circuit breaker, monitoring modular, and lightning-protection module.
7. integrated control unit according to claim 6, is characterized in that:
Described DC lightning prevention joining unit is that DC lightning prevention confluxes cabinet or DC lightning prevention header box.
8. integrated control unit according to claim 1, is characterized in that:
Described casing is metal cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799880.3A CN104485885A (en) | 2014-12-19 | 2014-12-19 | Integrated control device applied to distributed photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799880.3A CN104485885A (en) | 2014-12-19 | 2014-12-19 | Integrated control device applied to distributed photovoltaic power generation system |
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| CN104485885A true CN104485885A (en) | 2015-04-01 |
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| CN201410799880.3A Pending CN104485885A (en) | 2014-12-19 | 2014-12-19 | Integrated control device applied to distributed photovoltaic power generation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305958A (en) * | 2015-11-30 | 2016-02-03 | 苏州铭冠软件科技有限公司 | Distributed solar energy charging system |
| CN106505689A (en) * | 2016-12-23 | 2017-03-15 | 南通东源新能源科技发展有限公司 | A kind of energy-accumulating power station |
| CN106711801A (en) * | 2016-12-07 | 2017-05-24 | 四川行之知识产权运营服务有限公司 | Power distribution device |
| CN108089509A (en) * | 2017-12-22 | 2018-05-29 | 苏州正易鑫新能源科技有限公司 | A kind of photo-voltaic power generation station long-distance management device and system |
| CN109088471A (en) * | 2017-06-14 | 2018-12-25 | 大唐环境产业集团股份有限公司 | A kind of wind-powered electricity generation shaft tower is from electricity consumption power supply system and method for supplying power to |
| CN109560607A (en) * | 2017-09-26 | 2019-04-02 | 株洲中车时代电气股份有限公司 | A kind of photovoltaic power station monitoring cabinet |
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| CN204244173U (en) * | 2014-12-19 | 2015-04-01 | 湖北追日电气股份有限公司 | A kind of integrated control unit being applied to distributed photovoltaic power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105305958A (en) * | 2015-11-30 | 2016-02-03 | 苏州铭冠软件科技有限公司 | Distributed solar energy charging system |
| CN106711801A (en) * | 2016-12-07 | 2017-05-24 | 四川行之知识产权运营服务有限公司 | Power distribution device |
| CN106505689A (en) * | 2016-12-23 | 2017-03-15 | 南通东源新能源科技发展有限公司 | A kind of energy-accumulating power station |
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| CN109560607A (en) * | 2017-09-26 | 2019-04-02 | 株洲中车时代电气股份有限公司 | A kind of photovoltaic power station monitoring cabinet |
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| CN108089509A (en) * | 2017-12-22 | 2018-05-29 | 苏州正易鑫新能源科技有限公司 | A kind of photo-voltaic power generation station long-distance management device and system |
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Application publication date: 20150401 |