The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Characteristic of Control Response of BLDC using a Fuzzy PI Controller

퍼지 PI 제어기를 사용한 BLDC 제어 응답특성

  • 윤용호 (한국산업기술시험원) ;
  • 김재문 (한국철도대학 철도차량전기과) ;
  • 김덕헌 (가톨릭상지대학 철도전기과) ;
  • 원충연 (성균관대학교 정보통신공학부)
  • Received : 2011.05.25
  • Accepted : 2011.08.24
  • Published : 2011.10.01
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Abstract

BLDC motor is used in a wide variety of industrial and servo applications. Its features and advantages mainly consist in high value of torque/inertia ratio, high efficiency with speed range and high dynamic performance. This paper deals with the speed control of a trapezoidal type brushless DC motor using Fuzzy PI controller. The conventional PI controller has been widely used in industrial applications. If we select a optimal PI control gain, the PI controller shows very good control performance. But it is very difficult to find the optimal PI control gain. Fuzzy control does not need any model of plant and is basically adaptive and gives robust performance for plant parameter variation. Therefore the combinations of conventional PI controller and fuzzy controller seem to be very effective. This paper deals with PI controller with 4-rule based fuzzy controller. The proposed fuzzy PI controller increases the control performance of the conventional PI controller. Simulation and experimental results show that fuzzy PI controller has a good robustness regarding the improper tuned PI controller.

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References

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