한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 1998년도 추계학술대회 논문집
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- Pages.233-240
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- 1998
전동차용 고효율 저주파 동기 PWM을 이용한 관성부하 시험
A Inertia Load Test using a Low Frequency Synchronous PWM Technique of high efficiency for Electric car.
초록
This paper presents a high efficiency low switching PWM technique for the propulsion system of Electric car. In order to achieve the continuous voltage control to six-step and a low harmonics with low switching frequency under 500㎐, the synchronous technique is combined with a space vector overmodulation and implemented by using DSP. Improved performance and a validation of proposed method is shown by the experimental results using a 1.65MVA IGBT VVVF inverter and inertia load equivalent to 160 tons electric cars.
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