Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2011.11a
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- Pages.63-64
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- 2011
Design of Time Delay Compensator of Three-Level Inverter for Three-Phase UPS Systems
3상 UPS용 3레벨 인버터의 시지연 보상기 설계
- Lee, Jin-Woo (Doowon Technical College) ;
- Lim, Seung-Beom (Dankook University) ;
- Hong, Soon-Chan (Dankook University)
- Published : 2011.11.25
Abstract
The inevitable calculation time delay of digital controller especially degrades the voltage control performance of three-phase UPS systems. This paper proposes time delay compensators based on the Smith-predictor for both voltage and current controllers of three-level NPC inverters. The PSIM-based simulation results show that the proposed controller with delay compensator gives improved voltage control performance with respect to time delay.
Keywords