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Frequency stabilization control system of permanent magnet wind-driven generator capable of adapting to changing torque

A wind turbine and control system technology, applied in the frequency and voltage control of generators, electrical components, electromechanical devices, etc., can solve the problems of high price and complex equipment structure, and achieve the effect of reducing installed cost

Inactive Publication Date: 2011-05-25
BEIJING INST FOR FRONTIER SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can stabilize the voltage and frequency of the generator, its equipment structure is complex and expensive, which accounts for a considerable proportion of the generator set cost.

Method used

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  • Frequency stabilization control system of permanent magnet wind-driven generator capable of adapting to changing torque
  • Frequency stabilization control system of permanent magnet wind-driven generator capable of adapting to changing torque
  • Frequency stabilization control system of permanent magnet wind-driven generator capable of adapting to changing torque

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Embodiment Construction

[0022] The above objects, features, advantages and preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] figure 1 A schematic diagram of the overall structure of the array-type frequency-stabilized permanent magnet wind turbine is shown. figure 2 show figure 1 The structural schematic diagram of the stator and rotor of the wind turbine shown in , when the end cover is removed. It can be seen from the above two figures that the array-type frequency-stabilized permanent magnet wind power generator includes a stator 2 and two end covers 4 respectively installed at both ends thereof. The stator 2 and the two end covers 4 form a cavity, on which A motor shaft 1 coaxially disposed with a stator 2 protrudes outward from the cavity. A rotor 3 is also installed on the motor shaft 1 , and the rotor 3 is sleeved in the stator 2 .

[0024] In this embodiment, a plurality of fixing parts 5 are provided on...

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Abstract

The invention discloses a frequency stabilization control system of a permanent magnet wind-driven generator capable of adapting to changing torque. The control system comprises a control box and an industrial personal computer, wherein the control box is used for detecting a switch array state, detecting electrical parameters of the generator and controlling the connection and cut-off of a stator winding; and the industrial personal computer is used for controlling the control box to operate. Each stator winding of the generator is connected with a single switch, and the control system can control the generator to meet the requirements of multi-level loads. At the same time, the control system adopts an ADRC, and can accurately control the opening and closing of each switch to further control the number of the windings connected with stators so as to control the rotating speed of the rotors, adjust the output voltage frequency of the generator and maintain the output voltage frequency of the generator in a stable value.

Description

technical field [0001] The invention relates to a control system of a wind power generator, in particular to a control system capable of stabilizing output voltage frequency. Background technique [0002] In recent years, under the general trend of saving energy and protecting the environment, the wind power industry has developed rapidly. As we all know, the core component of wind power generation, that is, the wind generator is driven by the wind to rotate the blades, and then drive the rotor to rotate, so that the coil cuts the magnetic force lines to generate current. When the number of turns of the winding coil and the strength of the magnetic field are fixed, the voltage frequency of the wind turbine is proportional to the rotational speed of the rotor. Therefore, as long as the rotational speed is constant, the voltage frequency of the wind turbine can remain constant. However, what often happens is that as the wind energy changes, its driving force on the blades wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/44H02K11/00
Inventor 毕大川陈泽森
Owner BEIJING INST FOR FRONTIER SCI
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