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The Improvement of Output Voltage of UPS Using a Parallel Control Method  

成 炳 模 (부산대 전기공학과)
姜 弼 淳 (부산대 전기공학과)
朴 晟 濬 (부산대 전기공학과)
金 喆 禹 (부산대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.7, no.2, 2002 , pp. 158-164 More about this Journal
Abstract
This paper presents a proper parallel control method using a conventional control and a repetitive control for improving the output voltage waveform of uninterruptable power supply. Although first-order prediction control method shows a good characteristics to rectifier load, it is not sufficient to reduce steady state errors generated in nonlinear loads such as rectifier loads and phase controled loads. So we also employed a repetitive control method. A repetitive control method can eliminate steady state errors in the distorted output voltage caused by cyclic loads. The presented control scheme is verified through simulation and experiment. Experimental results Implemented on a single phase PWM inverter equipped with a LC output filter with 3 kVA, 60 Hz are shown.
Keywords
Uninterruptable power supply (UPS); First-order prediction Control; Repetitive control;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Deadbeat Control of Three-Phase PWM Inverter /
[ T. Kawabata(et al.) ] / IEEE Trans Power Electronics   ScienceOn
2 초전도 플라이휠 에너지 저장시스템을 이용한 UPS설계 /
[ 정환명;최재호 ] / 전력전자학회 논문지   과학기술학회마을
3 Characterization of programmed waveform in pulse width modulation /
[ I. J. Pitel(et al) ] / IEEE Trans. Ind. Appl.
4 Selected harmonic reduction in static DC-AC inverters /
[ F. G. Turnbull ] / IEEE Trans. Comm. and Elec.
5 Optimum Output Waveforms in PWM Inverter /
[ G. S. Buja ] / IEEE Trans. Ind. Appl
6 Deadbeat microprocessor control of PWM inverter for sinusoidal output waveform synthesis /
[ K. P. Gokhale(et al.) ] / IEEE PESC
7 무정전 전원 공급장치의 전류제한을 통한 용량 절감에 관한 연구 /
[ 박형진;정승기 ] / 전력전자학회 추계학술대회 논문집
8 Instantaneous feedback controlled PWM inverter with adaptive hysteresis /
[ A. Kawamura(et. al.) ] / IEEE Trans. Ind. Appl.
9 Delta modulation technique in static PWM inverters /
[ P. Ziogas ] / IEEE Trans. Ind. Appl
10 Deadbeat Controlled PWM Inverter with Parameter Estimation Using Only Voltage Sensor /
[ A. Kawamura(et al.) ] / IEEE Trans. Power Electronic   ScienceOn
11 Prediction Control for Cycloconverter of Power Distortion Compensation System /
[ I. Takahashi(et al.) ] / Conf. Rec. IEEE IAS Ann. Meeting