Electro-mechanical mixed stepless speed-changing wind power generation plant

A technology of wind power generation device and stepless speed change, which is applied in electromechanical devices, electromechanical transmission devices, wind power generation, etc., can solve the problems of reduced utilization efficiency of wind power generation systems and reduced efficiency of electrical transmissions, etc., so as to improve the working point and operating efficiency, Improve reliability and improve operating point effect
CN100594658CInactive Publication Date: 2010-03-17SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2010-03-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

An electromechanical infinite variable speed wind generating device is capable of realizing the real variable speed constant frequency operation, remarkably improving the reliability and the operationefficiency of a system as well as the operating factor of the wind energy, remarkably promoting the working point and the operating efficiency of an electrical variable transmission as well as the efficiency of the whole system. The device includes a wind machine (1), a mechanical speed increaser(2), an electrical transmission (3), a generator (4), a first power inverter (5), a second power inverter (6) and a third power inverter (7). If a DC power consists of an energy storage unit (storage battery, capacitor, etc), partial power can be stored in a form of electricity, or the energy in the energy storage can be released into an output shaft. When the power of the wind machine is larger than that of the generator, the redundant energy can be converted into electricity and stored; on the contrary, when the power of the wind machine is smaller than that of the generator, the energy in the energy storage unit can be released to complement the insufficiency of the inputted power.
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Description

Technical field

[0001] The invention is a device for wind power generation and belongs to the technical field of wind generator manufacturing. Background technique

[0002] As the whole society continues to pay attention to energy and environmental issues, the development and utilization of renewable energy is showing a trend of accelerated development. Wind energy is widely available on the earth and is currently one of the most mature renewable energy sources in the hands of people. A wind turbine is a device that converts mechanical energy into electrical energy in a wind power generation system. It is a tool that connects the original power and the output electrical energy. It not only directly affects the quality and efficiency of the output electrical energy, but also affects the performance and system of the entire wind power conversion system. Structure. Since wind energy is an energy source with low energy density, wind turbines driven by wind energy work at a relativel...

Claims

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