http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정영석(Y.S. Jung),유권종(G.J. Yu),소정훈(J.H. So),최주엽(J.Y. Choi),최재호(J.H. Choi) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
As the maximum power operating point(MPOP) of photovoltaic(PV) power generation systems changes with changing atmospheric conditions such as solar radiation and temperature, an important consideration m the design of efficient PV system is to track the MPOP correctly. Many maximum power point tracking (MPPT) techniques have been considered in the past, however, techniques using microprocessors with appropriate MPPT algorithms are favored because of their flexibility and compatibility with different PV arrays Although the efficiency of these MPPT algorithms is usually high, it drops noticeably in case of rapidly changing atmospheric conditions. This paper proposed a new MPPT algorithm based on perturb & observe(P&O) algorithm with experiment. The results shows that the new P&O algorithm has successfully tracked the MPOP, even in case of rapidly changing atmospheric conditions, and has higher efficiency than ordinary algorithms.
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