Generator rotor current control method and system both based on equivalent compensate iron auto disturbance rejection control

The invention discloses generator rotor current control method and system both based on the ECADRC (Equivalent Compensate Iron Auto Disturbance Rejection Control). A projection modification optimized state observer ensures that the system confines the observation error of the items with uncertain ti...

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Main Authors WAN YUBIN, GUO ZHIBI, HU CHANJUAN, ZHANG JINSONG, WANG LIPENG, CAO GUORONG, SHE YUE, ZHANG YUSHI, SONG JIANXIU, JIANG YAOSHENG, LIU ZHIXING, LUO MEIHONG
Format Patent
LanguageChinese
English
Published 21.03.2012
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:The invention discloses generator rotor current control method and system both based on the ECADRC (Equivalent Compensate Iron Auto Disturbance Rejection Control). A projection modification optimized state observer ensures that the system confines the observation error of the items with uncertain time variation, and; the state error feedback law with a linear interval is adopted; and through the equivalent compensation control, the known information of the system serves as the compensation condition, so as to reduce the evaluation range and accelerate the evaluation convergence. Adopting the above method, under the premise of stable system, the steady state and transient property of a wind power generation system under different operation conditions are effectively improved.
Bibliography:Application Number: CN20111371713