CN203352194U - Dual mode inverter for solar photovoltaic power generation - Google Patents

Dual mode inverter for solar photovoltaic power generation Download PDF

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Publication number
CN203352194U
CN203352194U CN2013204015736U CN201320401573U CN203352194U CN 203352194 U CN203352194 U CN 203352194U CN 2013204015736 U CN2013204015736 U CN 2013204015736U CN 201320401573 U CN201320401573 U CN 201320401573U CN 203352194 U CN203352194 U CN 203352194U
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CN
China
Prior art keywords
module
grid
net
voltage
operational module
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Expired - Fee Related
Application number
CN2013204015736U
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Chinese (zh)
Inventor
汪义旺
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Suzhou Vocational University
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Suzhou Vocational University
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Priority to CN2013204015736U priority Critical patent/CN203352194U/en
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Publication of CN203352194U publication Critical patent/CN203352194U/en
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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

Abstract

The utility model discloses a dual mode inverter for solar photovoltaic power generation. The inverter comprises a switch control module, a first parallel work module and a first off-network work module, wherein the switch control module can control the first parallel work module and the first off-network work module to respectively enter into work state. The first parallel work module comprises a DC/DC module, a voltage DC/AC module and an output module. The DC/DC module, the voltage DC/AC module and the output module are sequentially arranged in series. The first off-network work module comprises a current DC/AC module and a voltage isolated output module. The current DC/AC module is connected with the voltage isolated output module in series. The inverter disclosed by the utility model is simultaneously suitable for an off-network mode and a parallel mode.

Description

The double mode inverter of a kind of solar energy power generating
Technical field
The utility model relates to a kind of improvement of inverter, refers in particular to a kind of can simultaneously being applicable to from the double mode inverter of the solar energy power generating of net pattern and grid-connected pattern.
Background technology
Solar energy is as a kind of regenerative resource of flood tide, it is one of main alternative energy source of the fossil energy of extensive application at present, available one of the most direct clean energy resourcies of the mankind, solar photovoltaic technology also obtained generally paying attention to and greatly developing in today of resource worsening shortages, and oneself is through becoming one of direction that the world regenerative resource gives priority to and apply.
Solar energy power generating mainly contains from net and grid-connected two kinds of mode of operations.In existing photovoltaic engineering application, what mostly adopt is grid-connected pattern, and it is widely used.Be mainly used in areas without electricity from the net pattern, solve the no problem that has of electric energy.In existing solar photovoltaic technology, be generally grid-connected pattern and a kind of inverter of each self application is provided respectively from the net pattern; Along with the development of solar photovoltaic technology and deeply, and people's improving constantly that electric reliability is required.The function singleness of existing inverter, be difficult to meet the needs of producing or living.
The utility model content
The utility model purpose is to provide a kind of can be applicable to from the double mode inverter of the solar energy power generating of net pattern and grid-connected pattern in order to overcome the deficiencies in the prior art simultaneously.
For achieving the above object, the technical solution adopted in the utility model is: the double mode inverter of a kind of solar energy power generating comprises switching controls module, the first grid-connected operational module, first from the net operational module; Described switching controls module can be controlled the described first grid-connected operational module, first and enter respectively operating state from the net operational module; The described first grid-connected operational module, comprise DC/DC module, voltage-type DC/AC module, output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, output module; Described first from the net operational module, comprises current mode DC/AC module, transformer isolation output module; The setting of connecting with the transformer isolation output module of described current mode DC/AC module.
Preferably, the double mode inverter of described solar energy power generating, also comprise the second grid-connected operational module; Described switching controls module can be controlled the second grid-connected operational module and enter operating state; The described second grid-connected operational module, comprise DC/DC module, output module; The setting of connecting with output module of described DC/DC module.
Preferably, the double mode inverter of described solar energy power generating, also comprise second from the net operational module; Described switching controls module can be controlled second and enter operating state from the net operational module; Described second from the net operational module, comprises DC/DC module, voltage-type DC/AC module, transformer isolation output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, transformer isolation output module.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The double mode inverter of the described solar energy power generating of the utility model scheme, comprise switching controls module, the first grid-connected operational module, first from the net operational module; Described switching controls module can be controlled the described first grid-connected operational module, first and enter respectively operating state from the net operational module; The utility model can be applicable to from net pattern and grid-connected pattern simultaneously.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the fundamental diagram of solar energy power generating of the present utility model with double mode inverter;
Accompanying drawing 2 is the fundamental diagram of solar energy power generating of the present utility model with the first grid-connected operational module of double mode inverter;
Accompanying drawing 3 is the fundamental diagram of solar energy power generating of the present utility model with the second grid-connected operational module of double mode inverter;
Accompanying drawing 4 is first fundamental diagram from net operational module of solar energy power generating of the present utility model with double mode inverter;
Accompanying drawing 5 is second fundamental diagram from net operational module of solar energy power generating of the present utility model with double mode inverter.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1-5 is the double mode inverter of a kind of solar energy power generating described in the utility model, comprises switching controls module, the first grid-connected operational module, first from net operational module, second from net operational module, the second grid-connected operational module; Described switching controls module can be controlled the described first grid-connected operational module, first and enter respectively operating state from net operational module, second from net operational module, the second grid-connected operational module; The described first grid-connected operational module, comprise DC/DC module, voltage-type DC/AC module, output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, output module; Described first from the net operational module, comprises current mode DC/AC module, transformer isolation output module; The setting of connecting with the transformer isolation output module of described current mode DC/AC module; The described second grid-connected operational module, comprise DC/DC module, output module; The setting of connecting with output module of described DC/DC module; Described second from the net operational module, comprises DC/DC module, voltage-type DC/AC module, transformer isolation output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, transformer isolation output module; Described switching controls module, include control switch K1, K2, K3, K4, K5; The double mode inverter of described solar energy power generating, also comprise filtration module; Described filtration module, comprise capacitor C 1, C2, C3, C4, C5 and inductance L 1, L2, L3; Control control switch K1, K2, K3, K4, K5, can realize respectively that the described first grid-connected operational module, first enters respectively operating state from net operational module, second from net operational module, the second grid-connected operational module; Described filtration module is used for filtering.
Described DC/DC module is comprised of DC transfer circuit such as Boost, and described voltage-type DC/AC module, current mode DC/AC module are comprised of the inverter circuit of half-bridge or full-bridge type.The second grid-connected operational module can save the DC/DC module, be applicable to the high occasion of photovoltaic output voltage, and the operating efficiency of grid-connected main circuit is also high; Described second is applicable to photovoltaic output voltage applications from the net operational module.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The double mode inverter of the described solar energy power generating of the utility model scheme, comprise switching controls module, the first grid-connected operational module, first from the net operational module; Described switching controls module can be controlled the described first grid-connected operational module, first and enter respectively operating state from the net operational module; The utility model can be applicable to from net pattern and grid-connected pattern simultaneously.
Be only below concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.

Claims (3)

1. the double mode inverter of solar energy power generating, comprise switching controls module, the first grid-connected operational module, first from the net operational module; It is characterized in that: described switching controls module can be controlled the described first grid-connected operational module, first and enter respectively operating state from the net operational module; The described first grid-connected operational module, comprise DC/DC module, voltage-type DC/AC module, output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, output module; Described first from the net operational module, comprises current mode DC/AC module, transformer isolation output module; The setting of connecting with the transformer isolation output module of described current mode DC/AC module.
2. the double mode inverter of solar energy power generating according to claim 1, it is characterized in that: the double mode inverter of described solar energy power generating also comprises the second grid-connected operational module; Described switching controls module can be controlled the second grid-connected operational module and enter operating state; The described second grid-connected operational module, comprise DC/DC module, output module; The setting of connecting with output module of described DC/DC module.
3. the double mode inverter of solar energy power generating according to claim 1 and 2, it is characterized in that: the double mode inverter of described solar energy power generating also comprises second from the net operational module; Described switching controls module can be controlled second and enter operating state from the net operational module; Described second from the net operational module, comprises DC/DC module, voltage-type DC/AC module, transformer isolation output module; The setting of connecting successively of described DC/DC module, voltage-type DC/AC module, transformer isolation output module.
CN2013204015736U 2013-07-08 2013-07-08 Dual mode inverter for solar photovoltaic power generation Expired - Fee Related CN203352194U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013204015736U CN203352194U (en) 2013-07-08 2013-07-08 Dual mode inverter for solar photovoltaic power generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013204015736U CN203352194U (en) 2013-07-08 2013-07-08 Dual mode inverter for solar photovoltaic power generation

Publications (1)

Publication Number Publication Date
CN203352194U true CN203352194U (en) 2013-12-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103326402A (en) * 2013-07-08 2013-09-25 苏州市职业大学 Dual mode inverter for solar photovoltaic power generation
CN111869086A (en) * 2018-12-29 2020-10-30 华为技术有限公司 Inverter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103326402A (en) * 2013-07-08 2013-09-25 苏州市职业大学 Dual mode inverter for solar photovoltaic power generation
CN103326402B (en) * 2013-07-08 2016-03-02 苏州市职业大学 A kind of solar energy power generating dual mode inverter
CN111869086A (en) * 2018-12-29 2020-10-30 华为技术有限公司 Inverter
CN111869086B (en) * 2018-12-29 2022-07-12 华为数字能源技术有限公司 Inverter

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

Granted publication date: 20131218

Termination date: 20140708

EXPY Termination of patent right or utility model