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A Study of Parallel Operation of Module Power using CAN Communication

CAN통신을 이용한 모듈전원의 병렬운전에 관한 연구

  • Park, Seong-Mi (Department of Computer Engineering, Chonnam National University) ;
  • Lee, Sang-Hyeok (Department of Electrical Engineering, Chonnam National University) ;
  • Park, Sung-Jun (Department of Electrical Engineering, Chonnam National University) ;
  • Lee, Bae-Ho (Department of Computer Engineering, Chonnam National University)
  • 박성미 (전남대학교 컴퓨터공학과) ;
  • 이상혁 (전남대학교 전기공학과) ;
  • 박성준 (전남대학교 전기공학과) ;
  • 이배호 (전남대학교 컴퓨터공학과)
  • Received : 2011.03.31
  • Accepted : 2011.08.11
  • Published : 2011.08.31

Abstract

In this paper, we proposes new load-sharing algorism for equal current division using CAN communication. Proposed algorithm is different from conventional analog method, it performed strong Load-sharing using bi-direction high speed communication. Each modules constitution on independence controller (voltage controller, electric current controller). In parallel system prototype, each module have controller and performed load-sharing according to master module integral value. Also additional controller use for getting each module situations that fault situation of module and fault locate of module. we implemented high efficient load-sharing and redundancy. In this paper, we verify the validity of proposed algorithm using PSIM program and prototype.

본 논문에서는 CAN(Controller Area Network) 통신을 이용한 균등한 전류 분배를 위한 새로운 부하분담(Load-sharing) 알고리즘(Algorithm)을 제안한다. 기존 아날로그 방식과는 달리 디지털 통신을 이용한 강인한 부하분담특성을 가지며, 모듈마다 독립된 제어기(전압제어기, 전류제어기)가 구성되어 있으며, 마스터(Master)의 지령치 모듈의 지령치에 따라 슬레이브(slave)모듈이 부하분담을 수행한다. 또한 각 모듈 상태를 파악하기 위해 별도의 제어선을 사용하여 모듈의 고장 상태 및 고장난 모듈의 위치를 정확히 파악함으로써, 효율적이고 고속의 부하분담을 구현하였다. 제작된 병렬 시스템은 각 모듈마다 독립된 제어기가 구성되어 있으며, 본 논문에서는 PSIM을 통한 시뮬레이션과 시작품 제작을 통해 제안된 알고리즘의 타당성을 검증하였다.

Keywords

References

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