Indirect current control of active filter for harmonic elimination with novel observer-based noise reduction scheme

Jong Gyu Hwang, Yong Jin Park, Gyu Ha Choi

研究成果: Article

4 引用 (Scopus)

抜粋

Active power filters have been developed recently to solve the harmonics disturbance problems on power system networks. The direct current control scheme is generally used to control the harmonic compensating current directly for current source active power filters. To improve the characteristics of harmonic elimination, the voltage regulation scheme is proposed which regulates the filter capacitor voltage at the input side. Hence the voltage regulation scheme is an indirect current control technique for making sinusoidal line current. To implement this proposed scheme, the electronic differentiator should be used. By using the conventional differentiator, high frequency noise is generated in the controller. This deteriorates both the accuracy and reliability of the controller. To reduce this noise, a novel observer-based noise reduction scheme is proposed for our active filter system. The observer-based algorithm and characteristics of indirect current-controlled active filters are investigated through simulations and experiments.

元の言語English
ページ(範囲)261-266
ページ数6
ジャーナルElectrical Engineering
87
発行部数5
DOI
出版物ステータスPublished - 2005 7
外部発表Yes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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