A Study of Control Algorithm for Propulsion System

열차 추진제어장치의 알고리즘에 관한 연구

  • 최재호 (충북대 전기전자컴퓨터 공학부) ;
  • 김형철 (충북대 전기공학과)
  • Published : 2007.02.28


In this paper, control schemes are developed for a propulsion system(Converter/Inverter) in electrical train. A robust controller for PWM converter is proposed. The converter controller consists of a PI controller for DC output voltage and a current controller using error-space approach for maintaining the sinusoidal current waveform and unity power factor. This proposed method is based on characteristic ratio assignment(CRA) method which has the advantage to design the optimal gain to meet the referenced response and overshoot within the limit range. Inverter system is controlled by vector control and slip frequency control. At low speed region, vector control scheme is applied to control instantaneous torque and slip frequency control is performed under overmodulation region and one pulse mode. Because output voltage of converter contains harmonics ripple at twice input ac line frequency, control scheme is developed to reduce the pulsating torque current. The performance of propulsion system will be verified by simulation and prototype experimental results.


  1. 김상훈, 배본호, 설승기, '벡터제어를 적용한 전동차 구동 시스템 개발', 전력전자학회 논문지 제 6권 제1호, pp48-51,1999
  2. Adrian Cheok, Shboichi Kawamoto, 'AC drive with particular reference to traction drives,' APSCOM-97, Hong Kong,1997
  3. T.Hashimoto and S. Sone, 'PWM CONVERTER-INVERTER SYSTEM FOR AC SUPPLIED TRAIN,' University of Tokyo, Japan
  4. 高原,田中,神崎, '車兩用電力変煥裝置におけるPWM制御, 昭和60年電氣學會東京支部大會', pp4-5 ,1985
  5. 高原 英明 '鐵道車輛用電力變換裝置の 制御性能向上に 關る硏究',1997
  6. 김재식, 이상훈, 최재호, '시스템 응답을 고려한 UPS 인버터의 출력 LC 필터 설계,' 대한전기학회B부문논문지 50권, 7호, pp. 347-355, 2001
  7. Y. C. Kim and S. Manabe, 'Recent development of coefficient diagram method,' Proc. of 3rd Asian Control Conference, pp. 403-4.6, 2000