전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2004년도 전력전자학술대회 논문집(2)
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- Pages.787-790
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- 2004
전원 전압의 불평형과 고조파 전류 보상 및 역률 개선 기능을 가지는 능동전력 필터
Active Power Filter Compensating for Source Voltage Unbalance/Current Harmonics and Power Factor Correction
- Lee Jong-Kun (Yeungnam University) ;
- Seok Jul-Ki (Yeungnam University) ;
- Lee Dong-Choon (Yeungnam University)
- 발행 : 2004.07.01
초록
In this paper, a novel control scheme compensating for source voltage unbalance and current harmonics and power factor correction in unified active power filter systems combined with shunt passive filters is proposed, where no low/high-pass filter are used in deriving the reference voltage for compensation. Using digital all-pass filters, the phase angle and the reference voltages compensating for harmonic current and unbalanced voltage are derived from the positive sequence component of the unbalanced voltage. The amplitude of d-axis current in a series filter is controlled as zero for power factor correction. The validity of the proposed control scheme has been verified by experimental results.
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