http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조영준(Y.J Joe),김홍성(H.S Kim),목형수(H.S Mok),최규하(G.H Choe),김한성(H.S Kim) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
Recently, according to developing industry and life style, power consumption have been increased year after year. Currently these much power demand from power consumer is weakening the allowable power reserve margin in summer. As one of the remedies about this problem, the small scale utility interactive photovoltaic system(UIPVS) is considered for auxiliary power source. For this system one of problems to be solved technically, system operating power factor. Generally in case of small scale system, system is operated in unity power factor. But this unity power factor operating mode decrease power factor viewed from utility because UIPVS supply<br/> active power to utility. Therefore this paper propose UIPVS with power factor correcting function and this system is analyzed.
조건부 적분기를 가지는 LQ 제어기를 이용한 3상 PWM 컨버터의 전류제어
김홍성(H.S Kim),전윤석(Y S. Jeon),조영준(Y.J Joe),목형수(H S. Mok),최규하(G.H Choe),김한성(H.S.Kim) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
In this paper, controller for PWM converter considering unsymetrical input voltage is designed and current controller using LQ controller with conditional integrator is proposed. And the proposed current controller is compared with other current controller predictive controller, decoupling PI controller. As simulation results, LQ controller with Conditional Integrator shows the improved performance for DC link voltage regulation through transient test of load variation. And when unsymeritrical input voltage is applied to converter with conventional current controller considering only symetrical input voltage, input current is distorted but it is showed that current controller considering unsymetrical input has robust control characteristics under phase voltage unbalance.