The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Robust Adaptive Power Control against Electric Load Changes in Islanded Micro-grid

독립형 마이크로그리드의 부하 변동에 대한 강인 적응형 전력 제어기법

  • Ha, Yang (School of Electrical & Electronic Engineering, Ulsan College) ;
  • Cho, Hyun Cheol (School of Electrical & Electronic Engineering, Ulsan College)
  • Received : 2018.10.03
  • Accepted : 2018.11.22
  • Published : 2018.12.01
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Abstract

In recent years, micro-grid has been widely focused on the fields of renewal energy systems. This paper proposes a novel robust power converter control against arbitrary electric load changes for islanded micro-grid topology. First, we provide a state-space representation of our micro-grid model including power converter and electric load circuit. And then a state feedback control method is applied to construct a nominal control framework. Next, we propose a robust adaptive control law to enhance a control performance against unexpected load perturbation. In addition, we analytically investigate a passivity property for the micro-grid model and carry out computer simulation to demonstrate superiority and reliability of the proposed control methodology.

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References

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