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정영석(Y.S. lung),이병구(B.K. Lee),강기환(G.H. Kang),소정훈(J.H. So),정명웅(M.W. lung),유권종(GW. Yu),송진수(J.S. Song) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
This paper deals with stand-alone Photovoltaic system(SPVS) with charger/discharge controller. Main power source of SPVS are generally solar cel and battery. Therefore SPVS can be classified into variable types m accordance with connection type between battery and solar cell. SPVS with charger/discharge controller which can operate solar cell a maximum power point is suggested and designed with instantaneous controller. And system operating characteristics are verifieded by experiment with a laboratory prototype in this paper.
절연변압기를 생략한 새로운 계통연계형 햇빛발전시스템 고찰
정영석(Y. S. Jung),정명웅(M. W. lung),유권종(G. W. Yu) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
This paper describes a new interactive inverter between a photovoltaic(PV) array and single-phase utility that avoid the bulky input (60Hz) transformer on the AC slde. The interface employs a pwm boost converter on the DC side followed by a pwm current-forced single-phase rectifier for injecting the power from the PV array into the mains. The current waveform at the AC side remains sinusoidal and exactly m phase at all time. The circuit also has the advantage of requiring fewer switching device than high-frequency link system. This paper describes modeling of PV array and new system topology. simulation results on the performance of the connection are also presented