CN202678982U - Grid-connected solar photovoltaic power generation system - Google Patents
Grid-connected solar photovoltaic power generation system Download PDFInfo
- Publication number
- CN202678982U CN202678982U CN2012202778131U CN201220277813U CN202678982U CN 202678982 U CN202678982 U CN 202678982U CN 2012202778131 U CN2012202778131 U CN 2012202778131U CN 201220277813 U CN201220277813 U CN 201220277813U CN 202678982 U CN202678982 U CN 202678982U
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- China
- Prior art keywords
- photovoltaic array
- solar photovoltaic
- power
- storage device
- generation system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a grid-connected solar photovoltaic power generation system, comprising a solar photovoltaic array, a total control device, a detection device, and an electrical storage device; wherein a photovoltaic array controller is arranged among the solar photovoltaic array, the total control device, and the electrical storage device; when an output power detected by the detection device is greater than the maximum value of a fluctuation range of a predetermined power, the total control device sends a corresponding signal to the photovoltaic array controller and controls motion of the photovoltaic array controller, the photovoltaic array controller controls the solar photovoltaic array to transmit a part of electric energy beyond requirement of a power grid in the system to the electrical storage device after receiving the signal of the total control device; otherwise, when the output power detected by the detection device is less than the minimum value of the fluctuation range of the predetermined power, the photovoltaic array controller controls the solar photovoltaic array to transmit electric energy to the power grid, in this way, the grid-connected solar photovoltaic power generation system can ensure that the solar photovoltaic array outputs the relatively stable electric energy to the power grid all the time, thereby raising power supply quality of the power grid.
Description
One, technical field:
The utility model relates to a kind of electricity generation system, particularly relates to a kind of parallel networking type solar photovoltaic electricity generation system.
Two, background technology:
Along with the development of national economy and the increase of resident living power utility proportion, and the day by day scarcity of traditional energy, the application of the new forms of energy such as wind energy and solar energy is more and more extensive.Yet, because wind power generation or intrinsic randomness, intermittence and the fluctuation of solar power generation self need to carry out cooperation behind the access electrical network, guarantee the safe and stable operation of electrical network.
Three, utility model content:
Technical problem to be solved in the utility model is: a kind of higher parallel networking type solar photovoltaic electricity generation system for electrical stability that has is provided.
The utility model is that the technical scheme that the technical solution problem is taked is:
A kind of parallel networking type solar photovoltaic electricity generation system, comprise the photovoltaic square formation, this parallel networking type photovoltaic electricity generation system also comprises master control device, checkout gear and electrical storage device, is provided with the photovoltaic array controller between photovoltaic square formation, master control device and electrical storage device.
Described electrical storage device is electrochemical energy storage device, physics energy storage device or Power Flow device.
The quantity of described electrical storage device is a plurality of.
Operation principle of the present utility model is as follows: checkout gear is used for the power output of the described photovoltaic square formation of Real-Time Monitoring, and is converted to power signal; Electrical storage device is for the electrical power storage or the release that selectively described photovoltaic square formation are produced; The master control device is used for receiving described power signal, and controls described electrical storage device storage or discharge electric energy; The photovoltaic array controller by controlling the transmission direction of described photovoltaic square formation output electric energy, is controlled the selectable store electrical energy of described electrical storage device under the control of described master control device.
The utility model is to utilize solar cell directly solar energy to be converted to the electricity generation system of electric energy, links together by power conversion unit and electrical network, can carry active power and reactive power to electrical network.
Four, description of drawings:
Fig. 1 is structural principle schematic diagram of the present utility model.
Five, embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Referring to Fig. 1, a kind of parallel networking type solar photovoltaic electricity generation system, comprise photovoltaic square formation 1, master control device 3, checkout gear 4 and electrical storage device 5, between photovoltaic square formation 1, master control device 3 and electrical storage device 5, be provided with photovoltaic array controller 2, checkout gear 4 is used for the power output of the described photovoltaic square formation 1 of Real-Time Monitoring, and is converted to power signal; Electrical storage device 5 is for the electrical power storage or the release that selectively described photovoltaic square formation 1 are produced; Master control device 3 is used for receiving described power signal, and controls described electrical storage device 5 storages or discharge electric energy; Photovoltaic array controller 2 by controlling the transmission direction of described photovoltaic square formation 1 output electric energy, is controlled described electrical storage device 5 selectable store electrical energy under the control of described master control device 3.
The power output that detects when checkout gear 4 is during greater than the maximum of the fluctuation range of preset power, master control device 3 sends corresponding signal to photovoltaic array controller 2, and the action of control photovoltaic array controller 2, photovoltaic array controller 2 is behind the signal that receives master control device 3, and control photovoltaic square formation 1 will be higher than the part electric weight of electrical network requirement output-power fluctuation scope to electrical storage device 5 electric energy transmittings in the system; Otherwise the power output that detects when checkout gear 4 is during less than the minimum value of the fluctuation range of preset power, and photovoltaic array controller 2 control photovoltaic square formations 1 are to the electrical network transmission of electric energy.Like this, can guarantee that photovoltaic square formation 1 all the time to the comparatively stable electric energy of electrical network output, has improved the power supply quality of electrical network.
Claims (3)
1. parallel networking type solar photovoltaic electricity generation system, comprise photovoltaic square formation (1), it is characterized in that: this parallel networking type photovoltaic electricity generation system also comprises master control device (3), checkout gear (4) and electrical storage device (5), is provided with photovoltaic array controller (2) between photovoltaic square formation (1), master control device (3) and electrical storage device (5).
2. parallel networking type solar photovoltaic electricity generation system according to claim 1, it is characterized in that: described electrical storage device (5) is electrochemical energy storage device, physics energy storage device or Power Flow device.
3. parallel networking type solar photovoltaic electricity generation system according to claim 2, it is characterized in that: the quantity of described electrical storage device (5) is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202778131U CN202678982U (en) | 2012-06-13 | 2012-06-13 | Grid-connected solar photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202778131U CN202678982U (en) | 2012-06-13 | 2012-06-13 | Grid-connected solar photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678982U true CN202678982U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202778131U Expired - Fee Related CN202678982U (en) | 2012-06-13 | 2012-06-13 | Grid-connected solar photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490703A (en) * | 2013-08-29 | 2014-01-01 | 洛阳市环城供电局 | Solar power generating system of transmission line tower |
| CN104953607A (en) * | 2014-03-25 | 2015-09-30 | 利思电气（上海）有限公司 | Active energy-regenerative type electric energy quality generation device |
-
2012
- 2012-06-13 CN CN2012202778131U patent/CN202678982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490703A (en) * | 2013-08-29 | 2014-01-01 | 洛阳市环城供电局 | Solar power generating system of transmission line tower |
| CN104953607A (en) * | 2014-03-25 | 2015-09-30 | 利思电气（上海）有限公司 | Active energy-regenerative type electric energy quality generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130613 |