A brushless doubly-fed generator anti-load disturbance control device and method

A doubly-fed generator and control winding technology, applied in motor generator control, control of electromechanical transmission, electronic commutated motor control, etc., can solve the problem of power winding voltage amplitude drop, loss increase, power winding voltage amplitude fluctuation and other problems to achieve the effect of avoiding voltage drop, avoiding loss increase, and speeding up the response speed

Active Publication Date: 2022-02-11
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] (1) When the load is greatly disturbed, the voltage amplitude of its power winding will fluctuate greatly;
[0006] (2) When the load power factor is low, a la

Method used

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  • A brushless doubly-fed generator anti-load disturbance control device and method
  • A brushless doubly-fed generator anti-load disturbance control device and method
  • A brushless doubly-fed generator anti-load disturbance control device and method

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Embodiment Construction

[0064] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0065] The invention provides a brushless doubly-fed generator anti-load disturbance control device including a machine-side converter control module; the machine-side converter control module is connected to the winding of the brushless doubly-fed generator;

[0066] The machine-side converter control module is used to obtain a PWM pulse modulation signal for controlling the machine-side converter based on the control of the amplitude and frequency of the power winding voltage and the feed-forward compensation of the d-axis and q-axis components of the control winding current;

[0067] Among them,...

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Abstract

The invention provides a brushless doubly-fed generator anti-load disturbance control device and method, belonging to the field of brushless doubly-fed induction generator control, the control device includes a machine-side converter control module, the machine-side converter control module and Winding connection for brushless doubly-fed generators; used for control based on the amplitude and frequency values ​​of the power winding voltage and feed-forward compensation of the d-axis and q-axis components of the control winding current to obtain PWM pulses for controlling the machine-side converter Modulated signal. The control device also includes a grid-side converter control module; the grid-side converter control module is connected to the power winding of the brushless doubly-fed generator; it is used to control the magnitude of the DC bus voltage and control the AC side of the grid-side current device The current compensates the reactive current of the load. The invention improves the anti-disturbance ability of the power winding voltage when the load is disturbed. At the same time, the problems of power winding voltage drop and loss increase caused by the reactive current of the power winding are avoided.

Description

technical field [0001] The invention belongs to the field of brushless doubly-fed induction generator control, and more specifically relates to a brushless doubly-fed generator anti-load disturbance control device and method. Background technique [0002] The brushless doubly-fed induction generator is a new type of AC induction motor with two sets of stator windings with different pole pairs. The rotor is specially designed to make the rotating magnetic fields with different pole pairs generated by the two sets of stator windings interact indirectly. , so as to realize energy transfer. The two sets of stator windings of the brushless double-fed motor are called power winding and control winding respectively. Compared with the brushed double-fed induction generator, it cancels the brushes and slip rings, and has a simple structure. And the advantages of high reliability. [0003] The brushless doubly-fed induction generator can realize variable-speed constant-frequency pow...

Claims

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Application Information

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IPC IPC(8): H02P9/10H02P21/00
CPCH02P9/105H02P21/0003
Inventor 刘毅姜俊材徐伟林怡凡
Owner HUAZHONG UNIV OF SCI & TECH
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