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Multi-fan parallel connection type wind-light complementation power generation system

A wind-solar hybrid, grid-connected power generation technology, applied in photovoltaic power generation, wind power generation, single-grid parallel feeding arrangement, etc., can solve the problems of no wind and solar hybrid energy power generation system application, etc., and achieve work efficiency and comprehensive economic benefits. , high reliability and low price

Inactive Publication Date: 2009-04-15
SHANGHAI WANDE WIND POWER
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Problems solved by technology

[0007] At present, there is no application of wind and light hybrid energy generation system

Method used

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  • Multi-fan parallel connection type wind-light complementation power generation system

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing.

[0022] Such as figure 1 As shown, the multi-wind turbine parallel-connected wind-solar complementary grid-connected power generation system includes at least two wind power generators 1, 2, a solar cell array 3, a control device 4 and a grid-connected inverter 5, the At least two wind power generating sets are respectively connected with their own rectifiers 6, 7, and each rectifier is connected to the control device 4, the solar battery array 3 is connected to the control device 4, and the control device 4 is connected to the grid-connected inverter. The inverters 5 are connected to each other; the three-phase alternating currents produced by the at least two wind power generating sets 1 and 2 are respectively transformed into direct currents by respective rectifiers 6 and 7, and each direct current is connected with the direct current produced by the solar cell square arr...

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Abstract

The invention relates to a wind-solar hybrid grid-connected power generation system formed by parallel connection of multiple wind generating sets. The grid-connected power generation system comprises at least two wind generating sets, a solar cell array, a control device and a grid-connected inverter. The at least two wind generating sets are respectively connected with rectifiers, each of the rectifiers is interconnected with the control device; the solar cell array is interconnected with the control device, and the control device is interconnected with a grid-connected inverter. Compared with the prior art, the grid-connected power generation system has high reliability, low cost and convenient maintenance when the power is below 300KW, and is suitable for the current situation of power transmission and transformation of Chinese rural power grid.

Description

technical field [0001] The invention relates to a power generation system, in particular to a multi-fan parallel wind-solar complementary grid-connected power generation system. Background technique [0002] At present, wind power generation systems at home and abroad are roughly divided into two categories: one is household or small group wind power generation systems that operate independently, mainly with small and medium power fans. It is mainly used for daily electricity consumption of residents in areas without electricity. This system is not associated with the grid and operates independently. Such models are called off-grid wind turbines. [0003] The other type uses high-power wind turbines as the main model. A single wind turbine generates electric energy independently, and then the grid-connected equipment integrates the electric energy into the grid to provide power to the grid, and then the grid supplies power to users. Such models are called grid-connected w...

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Application Information

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IPC IPC(8): H02J3/38
CPCY02E10/763Y02E10/58Y02E10/563Y02E10/56Y02E10/76
Inventor 贾大江
Owner SHANGHAI WANDE WIND POWER