CN201091063Y - Solar energy photovoltaic power generation parallel in power station - Google Patents

Solar energy photovoltaic power generation parallel in power station Download PDF

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Publication number
CN201091063Y
CN201091063Y CNU2007200708877U CN200720070887U CN201091063Y CN 201091063 Y CN201091063 Y CN 201091063Y CN U2007200708877 U CNU2007200708877 U CN U2007200708877U CN 200720070887 U CN200720070887 U CN 200720070887U CN 201091063 Y CN201091063 Y CN 201091063Y
Authority
CN
China
Prior art keywords
controller
solar energy
inverter
output
power station
Prior art date
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.)
Expired - Fee Related
Application number
CNU2007200708877U
Other languages
Chinese (zh)
Inventor
杨益民
张宝森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI PUBSOLAR CO Ltd
Original Assignee
SHANGHAI PUBSOLAR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI PUBSOLAR CO Ltd filed Critical SHANGHAI PUBSOLAR CO Ltd
Priority to CNU2007200708877U priority Critical patent/CN201091063Y/en
Application granted granted Critical
Publication of CN201091063Y publication Critical patent/CN201091063Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The utility model relates to a grid-connected solar photovoltaic power station, comprising a photovoltaic cell component phalanx which is connected with a solar energy input end of a controller; a DC output end of the controller is connected with a storage battery. The utility model is characterized in that the DC output end of the controller is also connected with a DC input end of an inverter; an AC output end of the inverter is connected with an AC load end through an AC distributor; a bypass input end of the inverter is connected with city power grid. The utility model has the advantages that the power station can make full use of solar energy to supply power for the load and can effectively prevent the storage battery being shortened in service lift due to over-discharging.

Description

A kind of solar photovoltaic power generation grid-connecting power station
Technical field:
The utility model relates to field of photovoltaic power generation, is specifically related to a kind of solar photovoltaic power generation grid-connecting power station.
Background technology:
Solar energy power generating is the important component part of new and renewable sources of energy, is considered to new energy technology the most promising in the world today.In the prior art, photovoltaic generation normally relies on storage battery to carry out the storage of energy, promptly so-called independent generation mode, but owing to be subjected to the restriction of the memory capacity of storage battery, can cause waste in the time of the solar irradiation foot, and solar irradiation can be not enough when not enough.
Summary of the invention:
The purpose of this utility model is to provide a kind of solar photovoltaic power generation grid-connecting power station that can overcome above shortcoming.
To achieve these goals, the technical solution of the utility model is as follows: a kind of solar photovoltaic power generation grid-connecting power station, comprise the photovoltaic cell component square formation, this photovoltaic cell component square formation is connected with the solar energy input of controller, the dc output end of controller is connected with batteries, the dc output end that it is characterized in that controller also is connected with the direct-flow input end of inverter, the ac output end of inverter is connected with the AC load end through the AC distribution device, and the bypass input of this inverter also is connected with utility grid.
Advantage of the present utility model is to make full use of solar energy to electric, can effectively prevent batteries again because overdischarge causes shorten useful life.
Description of drawings:
Fig. 1 is a circuit diagram of the present utility model
Embodiment:
Below in conjunction with drawings and Examples the utility model is elaborated.
A kind of solar photovoltaic power generation grid-connecting power station, comprise photovoltaic cell component square formation 1, this photovoltaic cell component square formation 1 is connected with the solar energy input of controller 2, the dc output end of controller 2 is connected with batteries 3, the dc output end that it is characterized in that controller 2 also is connected with the direct-flow input end of inverter 4, the ac output end of inverter 4 is connected with AC load 6 through AC distribution device 5, and the bypass input of this inverter 4 also is connected with utility grid 7.
Photovoltaic cell component square formation 1 is exported electric energy under solar light irradiation, charge to batteries 3 through controller 2, the dc output end of controller 2 also is connected with the direct-flow input end of inverter 4 simultaneously, and the AC power of inverter 4 outputs is powered to AC load 6 through AC distribution device 5.When batteries 3 was not full of electricity, the main effect of controller 2 was to greatest extent to batteries 3 chargings.After batteries 3 was filled electricity, the electric power that controller 2 control photovoltaic cell component square formations 1 are sent made storage battery be in floating charge state for 3 groups, and direct current is exported stable 380V alternating current and used for load through the inversion part.When the energy output of photovoltaic cell component square formation 1 can not satisfy the demand of load, then by batteries 3 power supplies.Under overcast and rainy continuously situation, batteries 3 is in the situation of deep discharge, inverter 4 is by measuring batteries 3 voltages and comparing with the under-voltage value set in the system, if the voltage of batteries 3 is lower than the under-voltage value of setting, then inverter 4 automatically switches to bypass (being utility grid 7) and is AC load 6 power supply, promptly guaranteed the normal operation of load, can avoid batteries 3 again because overdischarge causes shorten useful life.
For safety, between the solar energy input of this photovoltaic cell component square formation 1 and controller 2, be provided with solar energy input lightning protection unit 9, between AC distribution device 5 and AC load 6, be provided with to exchange and export lightning protection unit 8.

Claims (2)

1. solar photovoltaic power generation grid-connecting power station, comprise the photovoltaic cell component square formation, this photovoltaic cell component square formation is connected with the solar energy input of controller, the dc output end of controller is connected with batteries, the dc output end that it is characterized in that controller also is connected with the direct-flow input end of inverter, the ac output end of inverter is connected with the AC load end through the AC distribution device, and the bypass input of this inverter also is connected with utility grid.
2. by the described a kind of solar photovoltaic power generation grid-connecting of claim 1 power station, it is characterized in that between the solar energy input of this photovoltaic cell component square formation and controller, being provided with solar energy input lightning protection unit, between AC distribution device and AC load, be provided with to exchange and export lightning protection unit.
CNU2007200708877U 2007-06-08 2007-06-08 Solar energy photovoltaic power generation parallel in power station Expired - Fee Related CN201091063Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200708877U CN201091063Y (en) 2007-06-08 2007-06-08 Solar energy photovoltaic power generation parallel in power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200708877U CN201091063Y (en) 2007-06-08 2007-06-08 Solar energy photovoltaic power generation parallel in power station

Publications (1)

Publication Number Publication Date
CN201091063Y true CN201091063Y (en) 2008-07-23

Family

ID=39862818

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200708877U Expired - Fee Related CN201091063Y (en) 2007-06-08 2007-06-08 Solar energy photovoltaic power generation parallel in power station

Country Status (1)

Country Link
CN (1) CN201091063Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101951018A (en) * 2010-09-03 2011-01-19 合肥联信电源有限公司 Emergency supply with photovoltaic synchronization feeding function
CN102918745A (en) * 2010-05-27 2013-02-06 三洋电机株式会社 Solar cell system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102918745A (en) * 2010-05-27 2013-02-06 三洋电机株式会社 Solar cell system
CN101951018A (en) * 2010-09-03 2011-01-19 合肥联信电源有限公司 Emergency supply with photovoltaic synchronization feeding function

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080723

Termination date: 20150608