전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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- Pages.171-175
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- 1998
COMMON-MODE VOLTAGE PULSE CANCELLATION METHOD BASED ON SPACE-VECTOR PWM IN CONVERTER-INVERTER SYSTEM
- Lee, Hyeoun-Dong (School of Electrical Engineering, Seoul National university, Seoul Korea) ;
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Sul, Seung-Ki
(School of Electrical Engineering, Seoul National university, Seoul Korea)
- 발행 : 1998.10.01
초록
This paper proposes the advanced PWM method that can reduce common-mode voltage in three-phase PWM converter-inverter system. By the proper distribution of the zero-voltage vector of inverter, it is possible to cancel out a common-mode voltage pulse in a sampling period. Since the proposed PWM method maintains the effective-voltage vector, it does not affect the control performance of converter-inverter system. Without any extra hardware, overall common-mode voltage can be decreased by one-third compared with conventional PWM scheme.
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