KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

Comparison of Performance of Brushless DC Drives under Direct Torque Control and PWM Current Control

  • Zhu Z. Q. (Department of Electronic and Electrical Engineering) ;
  • Liu Yong (Department of Electronic and Electrical Engineering) ;
  • Howe David (Department of Electronic and Electrical Engineering)
  • 발행 : 2005.12.01
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초록

Direct torque control (DTC) was originally developed for induction machine drives, and, more recently has been applied to permanent magnet brushless AC (BLAC) drives. In this paper, the performance of DTC controlled brushless DC (BLDC) drives is compared with that of PWM current controlled BLDC drives, both with and without current shaping. Both simulation and experimental results are presented, as well as the analysis of the resulting torque waveforms. It is shown that, in addition to exhibiting a fast torque response, a DTC controlled BLDC drive has a significantly lower low-frequency torque ripple than the PWM current controlled BLDC drive without current shaping, and that it is easier to implement than PWM current control with current shaping.

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참고문헌

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