Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Study on the Flux Estimation Simulator Application for the Induction Motor Speed Control

속도제어를 위한 유도전동기 자속추정 시뮬레이터 적용에 관한 연구

  • Hwang, Lark-Hoon (Dept. of Electrical Engineering, Semyung University) ;
  • Na, Seung-Kwon (Dept. of Biomedical Engineering, Korea Polytechnics III College) ;
  • Choi, Gi-Ho (Dept. of Electric Control, Engineering Korea Polytechnics III College)
  • 황락훈 (세명대학교 전기공학과) ;
  • 나승권 (한국폴리텍 III대학 의료전자) ;
  • 최기호 (한국폴리텍 III 대학 전기제어)
  • Received : 2010.12.09
  • Accepted : 2011.03.10
  • Published : 2011.03.31
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Abstract

In this paper, flux estimation method at the Induction motor is applied to stability flux estimate of possibility in overall speed domain. angle operation has voltage and current and speed information using the Induction motor direct control method. Induction motor direct control is material to flux information. Exact flux estimation method to using current model flux estimator of low-speed domain and voltage model flux estimator of high-speed domain. Speed and current and flux controller using PI controller. And error of integral requital for add to Anti-Windup PI controller. Verified to performance of Current model Flux controller and voltage model flux controller using Matlab / Simulink. Analysis has parameter influence of direct vector control and indirect vector control at the Induction motor vector control. So, verified to minute control. Analyzed to simulation result and proof to validity of presented algorithm.

본 논문에서는 전 속도 영역에서 안정적인 자속추정이 가능한 유도전동기 자속추정방법을 제안 하였다. 제안된 방법은 전압, 전류, 속도 등의 정보를 통하여 자속각을 연산하는 유도전동기 직접벡터제어방식을 이용하였다. 유도전동기 벡터제어에 있어서 자속정보는 필수적이기 때문에 정확한 자속을 추정하기 위한 방법으로 저속영역에서 는 전류모델 자속 추정기를, 고속영역에서는 전압모델 자속 추정기를 각각 이용함으로써 전 속도영역에서 정확한 자속을 추정할 수 있었다. 또한 기본적인 속도, 전류, 자속제어기는 PI제어기를 이용하였으며, 각각의 적분에 의한 오차를 보상하기 위하여 Anti-windup PI 제어기를 추가하였다. 제시한 제어기의 타당성을 알아보고자 Matlab / simulink를 이용하여 전류모델, 전압모델 자속 추정기를 설계하여 정확한 자속추정이 이루어짐을 확인하였으며, 유도 전동기 벡터제어 시 간접벡터와 직접벡터방식의 파라미터 영향에 따른 분석을 통해 보다 정밀한 제어가 이루어짐을 확인하였다. 이와 같은 시뮬레이션 결과를 분석 하여 제시한 알고리즘의 타당성을 입증하였다.

Keywords

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