Dead Time Compensation of Vector Controlled Inverter Using Space Vector Modulation Method

공간벡터 전류제어 기법을 이용한 벡터제어형 인버터의 dead time 보상

  • Hong, Ki-Phil (Dept. of Electrical Engineering Hanyang University) ;
  • Oh, Won-Seok (Dept. of Electrical Engineering Yuhan Junior College) ;
  • Kim, Young-Tae (Dept. of Electrical Engineering Hanyang University) ;
  • Kim, Hee-Jun (Dept. of Electrical Engineering Hanyang University)
  • 홍기필 (한양대학교 전기공학과) ;
  • 오원석 (유한전문대학 전기공학과) ;
  • 김영태 (한양대학교 전기공학과) ;
  • 김희준 (한양대학교 전기공학과)
  • Published : 1994.07.21


The switching dead time avoiding a bridge leg short circuit in PWM voltage source inverter produces distortions of the controlling inverter output performance such as current waveform, voltage vector, and torque. In this paper, the influence of dead time is investigated. The on-line space voltage vector modulation method is used for current controller. It is possible to compensate dead time by space voltage vector modulation which generates additional pulse compensating voltage distortion caused by dead time. In addition, narrow pulse which is generally neglected can be compensated. All the algorithms, including field-oriented control are performed by one chip microprocessor 80C196MC and DSP TMS320C31. Experimental results probe that the proposed scheme provides a good inverter output performance.