대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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Min Max 알고리즘과 Dead Time 보상기법에 의한 유도전동기의 성능 향상에 관한 연구

A study to improve the Performance of induction motor using Min Max algorithm and dead time compensation method

  • 김형구 (청주대학교 전자공학과) ;
  • 양오 (청주대학교 전자공학과)
  • Kim, Hyung-Gu (Dept. of Electronic Engineering, Chongju Univ.) ;
  • Yang, Oh (Dept. of Electronic Engineering, Chongju Univ.)
  • 발행 : 1999.07.19
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초록

Recently PWM invertor is broadly used for control of induction motor. The invertor is able to generate sin wave current from high speed switching power device such as IGBT. However the invertor is disturbed by dead time inevitably needed to prevent a short of the DC link voltage, and the dead time mainly causes distortions of the output current. In this Paper the dead time compensation method which corrects the voltage error from dead time, and Min Max algorithm enlarging the operating voltage of PWM were Proposed. This method can be implemented by software programming without any additional hardware circuit. The proposed algorithms were implemented by DSP(TMS320C31, 40MHz) and FPGA(QL2007, Quick Logic) described in VHDL. and applied to 3 phase induction motor(2.2 KW) to show the superior performance

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