Wind power generation simulation system based on brushless synchronous generator

A technology for wind power simulation and synchronous wind power generation, which is applied in the direction of controlling generators, wind power generation, and single-grid parallel feeding arrangements through magnetic field changes. Control scheme limitation, low level of wind power generation, etc., to achieve the effect of improving reliability and safety, eliminating high-order harmonics, and improving power factor

CN101814745AInactive Publication Date: 2010-08-25SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a wind power generation simulation system based on a brushless synchronous generator. In the technical scheme, a frequency converter 2 is connected with a power grid 1 and is used for controlling an electric motor 3 of a simulation blade, a brushless synchronous wind power generator is connected behind the electric motor 3, the current from the generator flows to the power grid 1 through a full-power rectification inverter circuit 5 based on AFE, and the whole system forms a closed-loop circuit. A control system 6 is used for controlling the frequency converter 2 and the full-power rectification inverter circuit 5 so as to complete the system control. The simulation system adopts the brushless synchronous wind power generator without slip ring or electric brush, thereby improving the system reliability and safety. Simultaneously, due to the full-power rectification inverter circuit based on the AFE, the simulation system not only can eliminate the higher-order harmonics and improve the power factor, but also can not be affected by fluctuations of the power grid, thereby achieving good dynamic properties.
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Description

technical field

[0001] The invention belongs to the field of wind power generation simulation systems, and relates to a wind power generation simulation system, in particular to a wind power generation simulation system based on a brushless synchronous generator. Background technique

[0002] Since our country entered the research and development stage of wind power technology, wind power technology has made great progress and improvement in both scientific research and design and manufacturing, but the fact now is that the core technology of wind power has not been adopted by our country. As far as we know, the level of wind power generation is not high, so it is necessary to strengthen the research of wind power technology, but there are not many simulation systems for wind power generation in China, especially there is no wind power generation simulation system based on brushless synchronous generators. Moreover, due to the limitations of wind farms, wind turbine test inv...

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Embodiment Construction

[0016] The present invention is described in further detail below in conjunction with accompanying drawing:

[0017] Referring to FIG. 1 , the brushless synchronous generator-based wind power simulation system of the present invention includes a power grid 1 , a frequency converter 2 , a motor 3 and a brushless synchronous wind generator 4 . The input end of the inverter 2 is connected to the grid 1, the output end of the inverter 2 is connected to the motor 3, the output shaft of the motor 3 is connected to the input shaft of the brushless synchronous wind generator 4, and the current output end of the generator 4 is connected to There is a rectification inverter circuit 5, wherein the rectification inverter circuit 5 is a full-power rectification inverter circuit based on AFE, and the output terminal of the rectification inverter circuit 5 is connected to the grid 1 so that the whole system forms a closed loop. In addition, the rectification and inverter circuit 5 and the fr...