Digital Control of a Single-Phase UPS Inverter for Robust AC-Voltage Tracking

  • Woo Young-Tae (Dept. of Electronics, Chungbuk National University) ;
  • Kim Young-Chol (School of Elec. & Computer Eng., Chungbuk National University)
  • Published : 2005.12.01

Abstract

This paper presents a digital controller for a single phase UPS inverter under two main considerations: (i) the overall system shall keep very low AC-voltage tracking error as well as no phase delay over different load conditions, and (ii) the digital controller shall be employed at a fixed sampling time. We propose that the former can be achieved by the proposed controller using the error-state approach and the latter can be dealt with by the socalled characteristics ration assignment.

Keywords

References

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