CN201789448U - Solar photovoltaic generation system capable of running off-grid - Google Patents

Solar photovoltaic generation system capable of running off-grid Download PDF

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Publication number
CN201789448U
CN201789448U CN2010205346658U CN201020534665U CN201789448U CN 201789448 U CN201789448 U CN 201789448U CN 2010205346658 U CN2010205346658 U CN 2010205346658U CN 201020534665 U CN201020534665 U CN 201020534665U CN 201789448 U CN201789448 U CN 201789448U
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CN
China
Prior art keywords
photovoltaic
charging
generation system
discharging controller
converter
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Expired - Fee Related
Application number
CN2010205346658U
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Chinese (zh)
Inventor
姜宏才
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YANGZHOU TIANHUA PV CO Ltd
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YANGZHOU TIANHUA PV CO Ltd
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Priority to CN2010205346658U priority Critical patent/CN201789448U/en
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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
    • 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)

Abstract

The utility model discloses a solar photovoltaic generation system capable of running off-grid, comprising a photovoltaic battery array, a DC/DC converter, a DC/AC photovoltaic independent inverter, a storage battery, a charging-discharging controller and a digital control system capable of controlling the parts above, wherein the photovoltaic battery array is connected with the DC/DC inverter; the DC/DC inverter is respectively connected with the DC/AC photovoltaic independent inverter and the charging-discharging controller, and the charging-discharging controller is connected with the storage battery.

Description

A kind of solar photovoltaic generation system structure from network operation
Technical field
The utility model relates to the photovoltaic field, is specifically related to a kind of solar photovoltaic generation system structure from network operation.
Background technology
Photovoltaic control inversion all-in-one is to change (technical term claims " inversion ") at the direct current energy that solar photovoltaic electrification component is sent out to be the required alternating current of common load, simultaneously to controlling with the supporting charging and discharging of accumulator of generating establishment.In recent years, domestic photovoltaic industry development is rapid, but does not all obtain the breakthrough of core technology basically, and wherein control inverter does not also have ripe product to put goods on the market.Its main difficult technical is: 1, the electronic circuitry design of inversion transformation technique is perfect inadequately, causes the output current wave weak effect, and big to the load injury, inversion efficiency is low; 2, structural design is coarse, and outward appearance is plain, and build is big; 3, manufacturing process is poor, quality and unstable properties.
Solar cell produces direct current in solar radiation, but general electrical equipment adopts AC-powered.Therefore, need direct current is transformed into alternating current in solar photovoltaic generation system, the power electronic equipment with this function is exactly an inverter, also needs to carry according to band charging, the discharge of situation control storage battery simultaneously.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of solar photovoltaic generation system structure from network operation to be provided.
The technical solution of the utility model is: a kind of solar photovoltaic generation system structure from network operation, comprise photovoltaic battery array, DC/DC converter, DC/AC photovoltaic separate inverter unit, storage battery, charging-discharging controller and the numerical control system of controlling above-mentioned all parts, described photovoltaic battery array is connected with the DC/DC converter, the DC/DC converter is connected with charging-discharging controller with DC/AC photovoltaic separate inverter unit respectively, and charging-discharging controller is connected with storage battery.
The utility model operation principle is the direct current (boosting inverter generally speaking) that the direct current that produces of photovoltaic battery array is transformed into the another one electric pressure after by the DC/DC converter, and then is transformed to alternating current by DC/AC photovoltaic separate inverter unit.After first order conversion is passed through the DC/DC conversion with the direct current that photovoltaic battery array produced, it is transformed into the photovoltaic separate inverter unit that controlled direct current stores in the storage battery or offers the back level, and first order conversion will realize simultaneously to the MPPT maximum power point tracking function of photovoltaic battery array and three stage intelligent charges.Partial photovoltaic separate inverter unit is an alternating current with the dc inverter on the dc bus, offers load.
The beneficial effects of the utility model are: 1, adopt the DSP digital Control Technology, output inverter is a standard sine wave, and waveform distortion is less than 5%; 2, adopt advanced MPPT technology, can farthest utilize luminous energy, improve the efficient of whole photovoltaic system.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in drawings, a kind of solar photovoltaic generation system structure from network operation, comprise photovoltaic battery array, DC/DC converter, DC/AC photovoltaic separate inverter unit, storage battery, charging-discharging controller and the numerical control system of controlling above-mentioned all parts, described photovoltaic battery array is connected with the DC/DC converter, the DC/DC converter is connected with charging-discharging controller with DC/AC photovoltaic separate inverter unit respectively, and charging-discharging controller is connected with storage battery.

Claims (1)

1. solar photovoltaic generation system structure from network operation, it is characterized in that: comprise photovoltaic battery array, DC/DC converter, DC/AC photovoltaic separate inverter unit, storage battery, charging-discharging controller and the numerical control system of controlling above-mentioned all parts, described photovoltaic battery array is connected with the DC/DC converter, the DC/DC converter is connected with charging-discharging controller with DC/AC photovoltaic separate inverter unit respectively, and charging-discharging controller is connected with storage battery.
CN2010205346658U 2010-09-16 2010-09-16 Solar photovoltaic generation system capable of running off-grid Expired - Fee Related CN201789448U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205346658U CN201789448U (en) 2010-09-16 2010-09-16 Solar photovoltaic generation system capable of running off-grid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205346658U CN201789448U (en) 2010-09-16 2010-09-16 Solar photovoltaic generation system capable of running off-grid

Publications (1)

Publication Number Publication Date
CN201789448U true CN201789448U (en) 2011-04-06

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Family Applications (1)

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CN (1) CN201789448U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208825A (en) * 2011-06-10 2011-10-05 西安工业大学 Solar photovoltaic power generation system with energy networking function
CN103219761A (en) * 2013-03-26 2013-07-24 上海太阳能科技有限公司 Extensible control and inversion integrated machine
CN105610190A (en) * 2016-01-15 2016-05-25 北京先行电气股份有限公司 Comprehensive utilization device and system for renewable energy feedback of rail transit vehicle
CN109066955A (en) * 2018-09-11 2018-12-21 四川大学 Can multistage-combination solar-electricity source unit
CN109066954A (en) * 2018-09-11 2018-12-21 四川大学 The solar-electricity source unit of zero standby power consumption
CN112290880A (en) * 2020-10-19 2021-01-29 哈尔滨理工大学 Distributed photovoltaic power generation monitoring device based on ARM

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208825A (en) * 2011-06-10 2011-10-05 西安工业大学 Solar photovoltaic power generation system with energy networking function
CN102208825B (en) * 2011-06-10 2013-05-15 西安工业大学 Solar photovoltaic power generation system with energy networking function
CN103219761A (en) * 2013-03-26 2013-07-24 上海太阳能科技有限公司 Extensible control and inversion integrated machine
CN105610190A (en) * 2016-01-15 2016-05-25 北京先行电气股份有限公司 Comprehensive utilization device and system for renewable energy feedback of rail transit vehicle
CN105610190B (en) * 2016-01-15 2019-03-12 北京先行电气股份有限公司 Rail traffic vehicles renewable sources of energy feedback comprehensive utilization device and system
CN109066955A (en) * 2018-09-11 2018-12-21 四川大学 Can multistage-combination solar-electricity source unit
CN109066954A (en) * 2018-09-11 2018-12-21 四川大学 The solar-electricity source unit of zero standby power consumption
CN109066954B (en) * 2018-09-11 2021-03-02 四川大学 Zero-standby-power-consumption solar power supply unit
CN109066955B (en) * 2018-09-11 2021-03-26 四川大学 Solar power supply unit capable of being combined in multiple stages
CN112290880A (en) * 2020-10-19 2021-01-29 哈尔滨理工大学 Distributed photovoltaic power generation monitoring device based on ARM

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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: 20110406

Termination date: 20110916