Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

The Characteristic Improvement of Inverter Output for Static UPS

UPS용 인버터 출력특성 개선

  • Kim, D.U. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Kim, Y.P. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Shin, H.J. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Baek, B.S. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Ryu, S.P. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Min, B.G. (Mabook-Ri Research Institute, Hyundai Heavy Industries Co., Ltd.)
  • 김동욱 (현대중공공업(주) 마북리 연구소) ;
  • 김연풍 (현대중공공업(주) 마북리 연구소) ;
  • 신현주 (현대중공공업(주) 마북리 연구소) ;
  • 백병산 (현대중공공업(주) 마북리 연구소) ;
  • 류승표 (현대중공공업(주) 마북리 연구소) ;
  • 민병권 (현대중공공업(주) 마북리 연구소)
  • Published : 1998.07.20
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Abstract

In spite of nonlinear or step-changing load and line disturbances, the inverter for the UPS must provide the pure sinusoidal output voltage with low THD(Total Harmonics Distortion). This paper proposes an inverter controller for the UPS which has a good dynamic response characteristic and robustness for applying industrial world directly. The inverter output voltage is controlled instantaneously with a double regulation loop by a TMS320C31 Digital Signal Processor so that it has very good dynamic response for nonlinear or step-changing load and line disturbances. To improve the voltage utilization and response characteristics, the Space Vector Modulation(SVM) technique is adapted for the switching method of this system. The characteristics of the proposed control system were verified by simulations and experiments.

Keywords