대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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- Pages.1489-1491
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- 2005
중성선 전류 제거를 위한 3상 4선식 능동 전력 필터
Neutral line current elimination method for Active power filter of three phase four-wire power system
- Min, Joon-Ki (Chungbuk Natl' Univ. Electrical Eng.) ;
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Kim, Hyo-Sung
(Kongju Natl' Univ. Cont. & Measur. Eng.) ;
- Choi, Jae-Ho (Chungbuk Natl' Univ. Electrical Eng.)
- 발행 : 2005.07.18
초록
This paper proposes a design method using PQR instantaneous power theory on the active power filter, unbalanced nonlinear load condition and unbalanced source voltage condition in three-phase four-wire systems. For reduction of current harmonics and neutral current, the control structure including repetitive controller is proposed and controller gain is designed. For fully-digital implementation, ramp comparison PWM method was adopted. Simulation results verify good performance of the proposed current control strategy on the shunt APFs.
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