3상 PWM 컨버터의 계통 리액터 위치에 무관한 상전압 측정 PLL 제어 알고리즘 (A Phase Voltage Measurement PLL Control Algorithm Independent of the Position of the System Reactor in a Three-Phase PWM Converter)

서지정보

· 발행기관 : 한국조명.전기설비학회
· 수록지 정보 : 조명.전기설비학회논문지 / 37권 / 1호 / 71 ~ 78페이지
· 저자명 : 손영득, 신기재, 김장목

초록

This paper presents various control methods to improve the quality of recently developed power conversion equipment. Compared to diode rectifier, voltage-source PWM converter controls input current in an actively manner and is widely used as a stable power conversion device. A control operation characteristic of a conventional PWM converter is identified. The conventional voltage sensing position to derive the control angle of the PWM converter required for system control is complexly installed in the hardware and the weight increases as the capacity increases because the system includes the L filter. In order to compensate for these drawbacks, the proposed system is configured to have the flexibility of the system by changing the voltage sensing position to the input terminal of the converter. At this time, since the existing control angle and phase voltage must be estimated, the phase voltage at the changed position was followed by the power source side using LPF and DSOGI-PLL, and this was compared and confirmed through a simulation.

영어초록

This paper presents various control methods to improve the quality of recently developed power conversion equipment. Compared to diode rectifier, voltage-source PWM converter controls input current in an actively manner and is widely used as a stable power conversion device. A control operation characteristic of a conventional PWM converter is identified. The conventional voltage sensing position to derive the control angle of the PWM converter required for system control is complexly installed in the hardware and the weight increases as the capacity increases because the system includes the L filter. In order to compensate for these drawbacks, the proposed system is configured to have the flexibility of the system by changing the voltage sensing position to the input terminal of the converter. At this time, since the existing control angle and phase voltage must be estimated, the phase voltage at the changed position was followed by the power source side using LPF and DSOGI-PLL, and this was compared and confirmed through a simulation.

참고자료

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