The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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A Study on the Compensation Method for Unbalance Parallel Operation of Parallel Connected Thyristor Dual Converters using Circulating Current

순환 전류를 이용한 병렬 연결된 사이리스터 듀얼 컨버터의 불균형 병렬 운전 보상 기법에 관한 연구

  • Received : 2016.07.29
  • Accepted : 2016.09.25
  • Published : 2016.12.20
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Abstract

This study proposes a performance improvement for parallel-connected thyristor dual converters using a circulating current with an unbalanced parallel operation compensator. The proposed control method determines a variable reference value for the voltage PI controller according to voltage error at firing angle control applied to a difference current control. This method uses circulating current control to maintain a stable voltage and excellent current response during parallel operation. The effectiveness of the proposed control is verified with a simulation and an experiment based on the comparison of the performance of the proposed control method with other conventional methods.

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References

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