CN203522308U - Intelligent photovoltaic distributed power generation system - Google Patents
Intelligent photovoltaic distributed power generation system Download PDFInfo
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- CN203522308U CN203522308U CN201320448534.1U CN201320448534U CN203522308U CN 203522308 U CN203522308 U CN 203522308U CN 201320448534 U CN201320448534 U CN 201320448534U CN 203522308 U CN203522308 U CN 203522308U
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- photovoltaic
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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
Abstract
The utility model discloses an intelligent photovoltaic distributed power generation system, which comprises a photovoltaic array, a DC converter, a storage battery pack, an inverter, a local AC load, a main distribution switch, an AC power grid and a controller. The intelligent photovoltaic distributed power generation system provided by the utility model can be connected with a plurality of photovoltaic distributed power generation systems in parallel, thereby increasing the generating capacity of a photovoltaic assembly, the capacity of the storage battery pack and the capacity of the AC load capacity; and the systems are integrally controlled by a controller, a topology control structure is adopted, and each of the loads and the storage battery packs are reasonably configured, thereby solving problems that a single photovoltaic distributed power generation system is low in generating capacity, weak in energy storage capacity, irregular in power utilization of local AC loads, and the like. Therefore, the overall large system is high in photovoltaic generating capacity utilization ratio, and has small impacts for the power grid.
Description
Technical field
The present invention relates to a kind of electricity generation system, particularly a kind of intelligentized photovoltaic distributed generation system.
Background technology
Photovoltaic distributed generation system is to utilize distributed photovoltaic power nearby in user's side, and solar energy is converted to direct current, and then be converted to alternating current for user directly with a kind of electricity generation system of upper electrical network.
Photovoltaic distributed power generation is a kind of novel, tool generating with broad prospects for development and comprehensive utilization of energy mode, it advocates generating nearby, grid-connected nearby, conversion nearby, the principle of using nearby, not only can effectively improve the energy output of same size photovoltaic plant, also efficiently solve the loss problem of electric power in boosting and transporting for long-distance simultaneously.But distributed power generation, to how the most effectively utilizing photovoltaic power generation quantity, how guaranteeing that power grid security has also proposed to be more strict with, need further be furtherd investigate.
Summary of the invention
Goal of the invention: the object of the invention is to solve the problem that existing photovoltaic distributed generation system utilization rate of electrical is low and solar radiation quantity height impacts electrical network.
Technical scheme: the invention provides following technical scheme: a kind of intelligentized photovoltaic distributed generation system, comprises photovoltaic array, DC converting, batteries, inverter, local AC load, main distribution switch, AC network and controller; Described electricity generation system connects photovoltaic array, DC converting, inverter and main distribution switch successively, batteries is connected with DC converting, local AC load is connected with main distribution switch respectively with AC network, and controller is connected with AC network with DC converting, inverter, local AC load, main distribution switch respectively.
As optimization, described intelligentized photovoltaic distributed generation system is together in parallel by a plurality of intelligentized photovoltaic distributed generation systems, centralized control.
As optimization, described intelligentized photovoltaic distributed generation system comprises batteries.
As optimization, described intelligentized photovoltaic distributed generation system middle controller Adoption Network topology control structure.
Operation principle: solar irradiation is mapped on photovoltaic array, assembly generation photovoltaic effect produces direct current, and electric current can be stored or is converted to alternating current through combining inverter by batteries, gives local AC load; When the not electricity consumption of local AC load or electricity too many or too much for use, AC network is passed in electric current online, when photovoltaic array energy output is greater than local AC load power consumption, and the charging of DC converter accumulators group; When photovoltaic array energy output is less than local AC load power consumption, DC converter allows batteries discharge; When photovoltaic array energy output is greater than local AC load power consumption and batteries sum, it is closed that controller is controlled main distribution switch, and to AC network transmission of electricity, whole process is by controller perception and control, batteries has energy-storage function, has the function of uninterrupted power supply and active filter concurrently.
Beneficial effect: the present invention compared with prior art: the present invention can a plurality of photovoltaic distributed generation systems in parallel, have increased like this photovoltaic module energy output, battery group capacity, local AC load capacity; Between each system, pass through a controller centralized control, Adoption Network topology control structure, each load of reasonable disposition, energy storage group, solved that single photovoltaic distributed photovoltaic power generation amount is low, a little less than energy storage capacity, the problems such as local AC load electricity consumption is irregular, therefore whole large system photovoltaic power generation quantity utilance is high, little to the impact of electrical network.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of a kind of single intelligentized photovoltaic distributed generation system of the present invention;
Fig. 2 is the configuration diagram of a kind of a plurality of intelligentized photovoltaic distributed generation systems of the present invention.
Embodiment
An intelligentized photovoltaic distributed generation system, comprises photovoltaic array 1, DC converter 2, batteries 3, inverter 4, local AC load 5, main distribution switch 6, AC network 7 and controller 8 as shown in Figure 1; Described electricity generation system connects photovoltaic array 1, DC converting 2, inverter 4 and main distribution switch 6 successively, batteries 3 is connected with DC converting 2, local AC load 5 is connected with main distribution switch 6 respectively with AC network 7, and controller 8 is connected 7 with DC converting 2, inverter 4, local AC load 5, main distribution switch 6 with AC network respectively.
System intelligent utilizes process as follows: solar irradiation is mapped on photovoltaic array 1 and produces direct current, when energy output is greater than local AC load power consumption, direct current is reverse into alternating current for local AC load 5 electricity consumptions through inverter 4, the remaining DC converter 2 accumulators groups 3 of passing through are charged, if electric weight also has more than needed, controller 8 is controlled main distribution switch 6 closures, and remaining electricity is all gone up AC network 7.When energy output is less than local AC load power consumption, DC converter 2 allows batteries 3 discharge, direct current from photovoltaic array 1 and batteries 3 is reverse into alternating current for local AC load 5 electricity consumptions through inverter 4, with Time Controller 8, control main distribution switch 6 and open, do not give AC network 7 power supplies.Whole process is that photovoltaic is generated power for their own use substantially, and AC network 7 is not powered, and has reduced the impact to electrical network.Batteries has energy-storage function, has the function of uninterrupted power supply and active filter concurrently, is beneficial to peak load regulation network.
Be the configuration diagram of a plurality of intelligentized photovoltaic distributed generation systems of the present invention as shown in Figure 2, comprise controller 8, a plurality of single intelligentized photovoltaic distributed generation systems unit.
System intelligent utilizes process as follows: low for single intelligentized photovoltaic distributed power generation density, randomness is strong, load variations is large, sensitive load to power supply reliability and the quality of power supply is high and system near the problems such as distribution line blocks up, controller 8 is by communication interface and each single intelligentized photovoltaic distributed generation system unit of control cables centralized control, to distributed power generation unit, between energy-storage units and load, carried out energy-optimised, solved single photovoltaic distributed photovoltaic power generation amount low, a little less than energy storage capacity, the problems such as local AC load electricity consumption randomness is strong, therefore whole large system photovoltaic power generation quantity utilance is high, impact to electrical network is little.While Adoption Network topology control structure, the state of network can be grasped and control, the different conditions of each photovoltaic array 1, DC converter 2, batteries 3, inverter 4, local AC load 5, main distribution switch 6, AC network 7 can be represented with various icons.Can make keeper recognize timely running situation by topological diagram.Detect, locate and get rid of the fault of each equipment.When breaking down, can confirm in time fault, record trouble, and find out location of fault and get rid of as much as possible these faults.System can be recorded the configuration information of each equipment, once configuration changes, can inform keeper by various ways such as note, mails.
Claims (4)
1. an intelligentized photovoltaic distributed generation system, is characterized in that: comprise photovoltaic array (1), DC converting (2), batteries (3), inverter (4), local AC load (5), main distribution switch (6), AC network (7) and controller (8); Described electricity generation system connects photovoltaic array (1), DC converting (2), inverter (4) and main distribution switch (6) successively, batteries (3) is connected with DC converting (2), local AC load (5) is connected with main distribution switch (6) respectively with AC network (7), and controller (8) is connected with DC converting (2), inverter (4), local AC load (5), main distribution switch (6) and AC network (7) respectively.
2. intelligentized photovoltaic distributed generation system according to claim 1, is characterized in that: described intelligentized photovoltaic distributed generation system is together in parallel by a plurality of intelligentized photovoltaic distributed generation systems, centralized control.
3. intelligentized photovoltaic distributed generation system according to claim 2, is characterized in that: described intelligentized photovoltaic distributed generation system comprises batteries (3).
4. intelligentized photovoltaic distributed generation system according to claim 3, is characterized in that: described intelligentized photovoltaic distributed generation system middle controller (8) Adoption Network topology control structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448534.1U CN203522308U (en) | 2013-07-26 | 2013-07-26 | Intelligent photovoltaic distributed power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320448534.1U CN203522308U (en) | 2013-07-26 | 2013-07-26 | Intelligent photovoltaic distributed power generation system |
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| CN203522308U true CN203522308U (en) | 2014-04-02 |
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| CN201320448534.1U Expired - Fee Related CN203522308U (en) | 2013-07-26 | 2013-07-26 | Intelligent photovoltaic distributed power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147147A (en) * | 2017-06-15 | 2017-09-08 | 山东新华联智能光伏有限公司 | Photovoltaic generating system |
| WO2023151117A1 (en) * | 2022-02-10 | 2023-08-17 | 昱能科技股份有限公司 | Distributed photovoltaic energy system |
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2013
- 2013-07-26 CN CN201320448534.1U patent/CN203522308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147147A (en) * | 2017-06-15 | 2017-09-08 | 山东新华联智能光伏有限公司 | Photovoltaic generating system |
| WO2023151117A1 (en) * | 2022-02-10 | 2023-08-17 | 昱能科技股份有限公司 | Distributed photovoltaic energy system |
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Granted publication date: 20140402 Termination date: 20150726 |
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