Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Analysis of Noise Characteristics according to PWM Method in 2-Phase Conduction Method

2상 통전 방식에서의 PWM 방식에 따른 소음 특성 분석

  • Oh, Jae-Yoon (Home Applicance Research Lab. LG Electronics Inc.) ;
  • Cheong, Dal-Ho (Home Applicance Research Lab. LG Electronics Inc.) ;
  • Kim, Jung-Chul (Home Applicance Research Lab. LG Electronics Inc.)
  • 오재윤 (엘지전자 홈 어플라이언스 연구소 전력전자팀) ;
  • 정달호 (엘지전자 홈 어플라이언스 연구소 전력전자팀) ;
  • 김정철 (엘지전자 홈 어플라이언스 연구소 전력전자팀)
  • Published : 1999.07.19
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Abstract

In this paper, we analyze the characteristics of Motor Noise according to PWM method, especially in the case of 2-phase conduction method. There are two types of PWM methods used usually. One is Lower-PWM and the other is Upper&Lower PWM. Because there is a difference between freewheeling path of both methods, Current profiles of two methods are different. This makes the difference of Torque Ripple and so difference of Noise Performance. In this paper, the path will be analyzed and the comparison of Noise performance of two types of PWM methods will be showed by experiment results.

Keywords