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

The Korean Institute of Power Electronics (전력전자학회)
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Design of Robust Voltage Controller for Single-phase UPS Inverter

단상 UPS 인버터의 강인한 전압제어기 설계

  • 구대관 (순천향대 대학원 전기통신시스템공학과) ;
  • 지준근 (순천향대 전기통신공학과) ;
  • 차귀수 (순천향대 전기통신공학과) ;
  • 문준희 (대림대학 메카트로닉스과)
  • Received : 2011.03.15
  • Accepted : 2011.04.27
  • Published : 2011.08.20
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Abstract

In this paper a robust voltage controller for a single-phase UPS inverter is newly presented. The voltage controller is designed using ${\mu}$-based robust control scheme to simultaneously guarantee robust stability and robust tracking performance in the presence of load variations. Firstly the robust performance of the resulting controller is theoretically confirmed via ${\mu}$-analysis. Then simulations and experiments for the single-phase inverter system with linear and nonlinear loads demonstrate feasibility of the proposed control method providing improved performance - good regulation and fast dynamic response.

본 논문에서는 단상 UPS 인버터의 강인한 전압제어기를 제안하고 설계한다. 제안된 전압제어기는 부하 변동에 대해서 강인 안정성과 강인 추종 성능을 얻기 위해 ${\mu}$-합성에 기초한 강인 제어 이론을 이용하여 설계되었다. 설계된 전압제어기의 강인 제어 성능은 ${\mu}$-해석을 통해 이론적으로 확인하였다. 그리고 단상 인버터에 대해 선형 부하와 비선형 부하로 시뮬레이션 및 실험을 수행하여 제안된 전압제어기가 안정된 전압제어 성능과 빠른 동특성을 가지는 향상된 제어성능을 제공하는 것을 확인하였다.

Keywords

References

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