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Sangsoo Park(박상수),Sang-Yong Kim(김상용),Seong-Jae Jang(장성재),Gyeong-Hun Kim(김경훈),Hyo-Ryong Seo(서효룡),Minwon Park(박민원),In-Keun Yu(유인근) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
PV (Photovoltaic) power generation system has been widely studied as a clean and renewable power source. Tracking the MPP (maximum power point) of a PV array is usually an essential part of a PV system. This paper describes POS (Photovoltaic Output Sensorless) MPPT method and optimization technique of its operational characteristics for grid-connected PV generation system. A DC-DC converter has been used to step-up the PV voltage and DC-AC converter has been used for connecting the system to the grid. Optimization technique has been implemented to optimize the current and voltage controller gain parameters and duty ratio increment of DC-DC converter. Simulation results reveal that the proposed control has better response.