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Wind power generation system capable of being started at low wind speed in auxiliary mode

A technology of wind power generation system and wind power generator, which is applied in the direction of wind power generation, wind power engine, wind power motor combination, etc., and can solve problems such as rising manufacturing costs, reducing power generation, and decreasing reliability of wind turbines

Inactive Publication Date: 2014-07-16
SHENZHEN LICHUANG POWER
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  • Summary
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Problems solved by technology

In order to increase the power generation of the wind turbine and reduce the starting wind speed of the wind turbine, wind turbine manufacturers often need to add additional mechanical components, which not only increases the manufacturing cost, but also reduces the reliability of the wind turbine due to the complex structure. Mechanical components tend to reduce power generation

Method used

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  • Wind power generation system capable of being started at low wind speed in auxiliary mode
  • Wind power generation system capable of being started at low wind speed in auxiliary mode

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Embodiment Construction

[0030] see figure 1 , a kind of low-wind assisted start-up wind power generation system of the present invention includes a wind power generator 1, wherein the wind power generator preferably adopts a doubly-fed motor, which is used to convert wind energy into electrical energy in the generator mode, and in the motor mode, Electrically assisted starting can be achieved by means of a variable frequency motor drive 10 .

[0031] The microprocessor adopts DSP and CPLD dual-chip system, DSP is responsible for data sampling, algorithm realization and display, CPLD is responsible for logic control, and controls action output through relays, etc., the two communicate with each other to achieve coordinated work, and DSP is also connected to a communication port It is used to connect with peripherals such as computers during daily debugging by users. The communication port adopts Ethernet to realize real-time high-speed transmission.

[0032] Fan voltage, current, and speed sampling m...

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Abstract

The invention provides a wind power generation system capable of being started at a low wind speed in an auxiliary mode. According to the wind power generation system capable of being started at the low wind speed in the auxiliary mode, the effect that a motor is started at the low wind speed is achieved, a control strategy can be adjusted in real time according to the wind speed, and therefore the output power of the motor can be effectively improved.

Description

technical field [0001] The invention relates to a wind power generation system capable of auxiliary start-up in low wind. Background technique [0002] Energy is the material basis for the existence and development of human society. Global wind resources are extremely rich and distributed in almost all countries and regions in the world. Wind power is one of the effective means of using natural resources to obtain environmentally friendly energy, and it is also the most mature technology among new energy sources. , one of the power generation methods with the most development conditions and commercialization prospects. Wind energy has a certain kinetic energy. When the wind wheel rotates, the wind energy is converted into mechanical energy, and then the generator is driven to generate electricity, and then a stable DC power is obtained through uncontrollable three-phase rectifiers and other equipment. The converter outputs AC power to supply the AC load. [0003] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/02F03D7/00
CPCY02E10/72Y02E70/30
Inventor 罗烽杨凯成杨慧翔
Owner SHENZHEN LICHUANG POWER
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