Journal of Korea Society of Industrial Information Systems (한국산업정보학회논문지)

Korea Society of Industrial Information Systems (한국산업정보학회)
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Current Controller Design of a Phase Shift Full Bridge Converter for High Current Applications with Inductive Load

대 전류 응용 위한 유도 부하를 갖는 위상 변이 풀 브릿지 컨버터의 전류 제어기 설계

  • Received : 2017.08.18
  • Accepted : 2018.02.20
  • Published : 2018.02.28
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Abstract

This paper presents the performance of a Phase Shift Full Bridge (PSFB) converter with inductive load and a new current control scheme to improve dynamic response of output current with various inductive loads. Enhanced dynamic model is used which includes leakage inductance and inductive load. Effect of changing of inductive load was analyzed in detail. Proposed current control scheme is designed based on phase margin specifications. As a result, the proposed current control scheme helps to improve the dynamic response in comparison with the existing current control scheme. The performance of the designed controller is verified by a 500 A PSFB converter. The results will be utilized for high current applications with high inductive load such as superconducting devices.

본 논문에서는 유도성 부하를 가지는 위상 변위 풀 브릿지 컨버터(PSFB)의 성능과 다양한 유도성 부하를 갖는 출력 전류의 동적 응답을 향상시키는 새로운 전류 제어 기법을 제안하였다. 누설 인덕턴스 및 유도성 부하를 포함하는 향상된 동적 모델을 사용하였으며, 유도 부하의 변화에 대한 영향을 상세히 분석하였다. 제안된 전류 제어 방식은 위상 여유 사양을 기반으로 설계하였다. 결과적으로 제안된 전류 제어 기법은 기존의 전류 제어 기법과 비교하여 동적 응답을 개선시킬 수 있음을 확인하였다. 설계된 컨트롤러의 성능은 500 A PSFB 컨버터 시스템을 통하여 검증하였다. 이 결과는 초전도 장치와 같이 유도성 부하가 큰 고 전류 애플리케이션에 활용할 수 있다.

Keywords

References

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