Solar photovoltaic generating system

A technology for solar photovoltaic and power generation systems, applied in the field of solar photovoltaic power generation, can solve problems such as reducing reliability, increasing system manufacturing costs and the probability of failure, and achieving the goal of improving reliability, facilitating design and construction, and improving operational reliability. Effect

Inactive Publication Date: 2011-07-27
ALTENERGY POWER SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, there are two sets of AC terminals 103, 104 between the two micro-inverters 102, which obviously further increases the manufacturing cost and the probability of failure of the entire system, and reduces the reliability

Method used

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  • Solar photovoltaic generating system
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  • Solar photovoltaic generating system

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0038] image 3 It is a structural schematic diagram of a solar photovoltaic power generation system according to an embodiment of the present invention. As shown in the figure, the solar photovoltaic power generation system 300 may include:

[0039] A plurality of DC photovoltaic modules 301 for generating DC power according to solar energy;

[0040]A plurality of micro-inverters 302 are respectively connected to their respective DC photovoltaic components 301, and are used to convert the DC power generated by the DC photovoltaic components 301 into AC power; each micro-inverter 302 has an output AC terminal 303, Responsible for outputting the AC power of the micro-inverter 302;

[0041] A bus AC cable 307, which specifically includes a main cable 306 and a plurali...

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Abstract

The invention provides a solar photovoltaic generating system, comprising a plurality of direct current photovoltaic assemblies used for generating a direct current by utilizing the solar energy, a plurality of micro inverters which are respectively connected with a corresponding direct current photovoltaic assembly and used for converting the direct current into an alternating current, a bus alternating current cable which comprises a main cable and a plurality of branch cables connected with the main cable in parallel, wherein the plurality of branch cables are respectively connected with a corresponding micro inverter by virtue of each alternating current terminal, and the bus alternating current cable outputs the alternating currents output by all the micro inverters in parallel. In the invention, each micro inverter is independently connected with the main cable by virtue of the branch cables, each branch cable bears the alternating current output by each inverter, and the main cable bears the sum of the alternating currents output by all the micro inverters connected with the main cable. By applying the system provided by the invention, the manufacturing cost, volume and weight are reduced, the system failure, especially alternating current terminal failure, is reduced, and the operational reliability is improved.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic power generation, in particular, the invention relates to a solar photovoltaic power generation system. Background technique [0002] Inverters used in solar photovoltaic power generation systems are increasingly tending to be micro-inverters with distributed structures. The above-mentioned micro-inverter provides maximum power point control (MPPC, Maximum Power Point Controlling) for each DC photovoltaic module, so that each DC photovoltaic module generates the maximum electric energy, and improves the power generation efficiency of the entire solar photovoltaic power generation system. Micro-inverters are also used to generate low-voltage AC output directly connected to the grid, instead of the high DC voltage of the central inverter system, improving the safety and power generation efficiency of solar photovoltaic power generation systems. [0003] In the existing photovoltaic power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N6/00H02J3/38H02S40/32
CPCY02E10/563Y02E10/56
Inventor 罗宇浩
Owner ALTENERGY POWER SYST
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