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System capable of increasing generating capacity of photovoltaic power generation system

A photovoltaic power generation system and power generation technology, applied in photovoltaic power generation, photovoltaic modules, electrical components, etc., to achieve the effect of increasing power generation

Inactive Publication Date: 2015-12-02
GUANGXI BIDI PHOTOELECTRICAL TECH ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] After searching, in the existing patent literature of photovoltaic power generation system, there is no relevant literature report that can improve the power generation of photovoltaic power generation system identical to the present invention.

Method used

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  • System capable of increasing generating capacity of photovoltaic power generation system

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Embodiment Construction

[0011] The following is attached figure 1 Embodiment describes the present invention in more detail:

[0012] A system that can increase the power generation of a photovoltaic power generation system, which includes: 1-photovoltaic array, 2-DC contactor A, 3-inverter, 4-DC contactor B, 5-pumping circuit (or chopper inverter variable transformer), which is characterized in that two branches are connected in parallel between the photovoltaic array and the inverter, branch a is composed of photovoltaic array, DC contactor A, and inverter in series; branch b is composed of photovoltaic array, DC contactor B. Pumping circuit (or chopper inverter transformer), inverters are connected in series.

[0013] a). When the solar radiation is normal and the voltage emitted by the photovoltaic array reaches the working voltage range of the inverter, the photovoltaic power generation system starts the A contactor and starts the inverter according to the normal path a to realize grid-connecte...

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Abstract

A system capable of increasing the generating capacity of a photovoltaic power generation system is characterized in that two branches are connected in parallel between a photovoltaic array and an inverter, wherein the branch a is formed by the photovoltaic array, a direct current contactor A and the inverter, and the branch b is formed by the photovoltaic array, a direct current contactor B, a pumping circuit or a chopper inverter transformer and the inverter. The other branch is added between the photovoltaic array and the inverter, and the pumping circuit is added in the branch, so that the output voltage of the photovoltaic array rises to reach the normal working voltage of the inverter, thus enabling the inverter and the whole power generation system to continuously realize grid-connected power generation, and increasing the generating capacity of the photovoltaic power generation system.

Description

technical field [0001] The invention relates to a solar photovoltaic power generation system, in particular to a photovoltaic power generation system capable of increasing power generation. Background technique [0002] A power generation system consisting of a photovoltaic array and an inverter, when the solar radiation is normal, the output voltage of the photovoltaic array is sufficient to reach the operating voltage of the inverter, and the system can be connected to the grid to generate electricity normally; however, when the solar radiation is too low At this time, the output voltage of the photovoltaic array does not reach the working voltage range of the inverter, the system cannot start normally, and it is disconnected from the grid. The electricity at this time is called "garbage electricity". [0003] In order to collect this part of the power generation and make full use of it, the present invention adds a branch circuit with a pumping circuit (or chopper inverte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02S40/32
CPCY02E10/56
Inventor 海涛林波韦俊强石家文唐超张镱议
Owner GUANGXI BIDI PHOTOELECTRICAL TECH ENG