Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1987.11a
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- Pages.457-462
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- 1987
Implementation of a PWM Controlled Active AC Power Filter Using a Fast PWM Control Method
PWM 제어 능동 교류 전력 필터의 개발 및 속도 개선
- Kim, Jae-Hyun (Seoul National University) ;
- Park, In-Gyu (Seoul National University) ;
- Park, Jong-Keun (Seoul National University)
- Published : 1987.11.20
Abstract
This paper deals with the PWM controlled active AC power filter. A new PWM control method from the viewpoint of speed and simplicity is proposed. And a microprocessor-based controller is used to realize the active AC power filter. The existing PWM control methods are primarily based on Fourier series expansion and these methods need FFT calculation and solving nonlinear harmonic equations, which are heavy burden to real-time control. The proposed method is based upon generalized pulse series expansion and needs only definite integrals of harmonic signal. So, computational effort can be reduced by a large margin. The digital circuit using 16-bit microprocessor is designed to implement the actual active power filler.
Keywords