제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지

A new real-time optimal direct digital PWM technique

실시간 최적 제어가 가능한 새로운 직접 디지탈 PWM기술

  • 황재호 (한국과학기술원 정보전자연구부) ;
  • 최익 (한국과학기술원 정보전자연구부) ;
  • 권순학 (영남대학교 전기전자공학부) ;
  • 박귀태 (고려대학교 전기공학과)
  • Published : 1996.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes a new pulse width modulation (PWM) scheme suitable for microprocessor-based PWM inverters. Optimal switching patterns minimizing the performance index corresponding to the distortion factor are decided in real time by numerical calculation using the microprocessor-implemented control system. This PWM method is compared with conventional methods, such as the natural PWM and the direct PWM. Harmonic analysis using digital simulations shows that the proposed PWM scheme has much less low-order harmonics than the other methods. The validity of this method is verified in experiments using a microprocessor-based control system, where a 16-bit single-chip microcontroller, Intel 80c196kc is used.

Keywords