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Double salient poles permanent magnetism wind power generator system and control method thereof

A technology of wind power generation system and wind generator, which is applied in wind power generation, control generator, control system and other directions to achieve the effect of simple rotor structure, high power density and simple circuit

Inactive Publication Date: 2008-11-05
JIANGSU THERMAL POWER EQUIP MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although wind energy is a clean and renewable energy source, it is volatile. When using wind energy as the power to drive double salient pole permanent magnet motors, especially when it is communicated with the grid to form a complete system, automatic control devices and automatic The method of control has not been reported

Method used

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  • Double salient poles permanent magnetism wind power generator system and control method thereof
  • Double salient poles permanent magnetism wind power generator system and control method thereof
  • Double salient poles permanent magnetism wind power generator system and control method thereof

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Embodiment Construction

[0017] The accompanying drawings disclose the specific structures of the embodiments of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Depend on figure 1 It can be seen that the doubly salient permanent magnet wind power generator system includes: a wind turbine 1 , a doubly salient permanent magnet generator 2 , and a PWM power converter 3 . The specific connection method is: the wind turbine 1 is connected to the rotating shaft of the doubly salient permanent magnet generator 2, the stator armature winding terminal of the doubly salient permanent magnet generator is connected to the generator side PWM power converter, and the grid side PWM The AC side of the power converter is connected to the grid, and the two PWM power converters are connected back to back.

[0019] Depend on figure 2 It can be seen that the controller circuit of the PWM power converter on the ge...

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Abstract

The invention relates to a variable wind generator system of a double convex pole permanent-magnet wind motor and a control method thereof, including a wind mill and a double convex pole permanent-magnet wind motor and two PWM power converters and a controller, wherein the wind mill is connected with the transmission shaft of the double convex pole permanent-magnet wind motor; the stator armature winding terminal of the double convex pole permanent-magnet generator is connected with the PWM power converter at the side of the generator; the AC side of the net side PWM power converter is connected with the electric network; two PWM power converters are connected back to back. The controller at the side of the generator of the PWM power converter includes a current sensor, a rotary encoder and a controller including s SVPWM generator, the input end of which is connected with the current sensor, the rotary encoder, and the PWM power converter is controlled by the output signals of the SVPWM generator.

Description

technical field [0001] The invention relates to a doubly salient pole permanent magnet wind power generator system and its control method, and belongs to the technical field of generator control. Background technique [0002] Wind energy is a kind of clean renewable energy, and vigorously developing renewable energy power generation technologies including wind power is the best choice to solve the global energy and resource shortage. Wind turbines can be divided into two categories: constant speed operation and variable speed operation according to the operation mode. Because variable speed wind turbines can capture more wind energy and reduce the impact load of the transmission system than fixed speed wind turbines, they are currently used worldwide It has been widely used, and various forms of generators can be used for variable-speed wind turbines, such as double-fed asynchronous generators and permanent magnet synchronous generators. For variable-speed double-fed asynchr...

Claims

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Application Information

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IPC IPC(8): H02P9/00H02M5/44H02M5/458
CPCY02E10/76
Inventor 郝鸿彬张建忠程明
Owner JIANGSU THERMAL POWER EQUIP MFG CO LTD
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