Title :
Photovoltaic power system with simplified cascade boost choppers
Author :
Utsumi, Ryosuke ; Masukawa, Shigeo ; Iida, Shoji
Author_Institution :
Tokyo Denki Univ., Chiyoda
Abstract :
Photovoltaic (PV) modules under different solar irradiances have generally the distinct maximum power points. In this paper, a circuit topology for obtaining the respective maximum powers from the above PV modules is investigated. Simplified double cascade boost choppers are proposed and a control scheme to derive the respective maximum output powers from individual PV modules is discussed. Furthermore, the Maximum Power Point Tracking controls on the starting operation, on the solar irradiance change and on the load fluctuation are confirmed by several experiments.
Keywords :
choppers (circuits); photovoltaic power systems; circuit topology; maximum power point tracking controls; photovoltaic modules; photovoltaic power system; simplified cascade boost choppers; solar irradiance change; Capacitors; Choppers; Circuit topology; Diodes; Fluctuations; Photovoltaic systems; Power generation; Smoothing methods; Solar power generation; Voltage; Boost chopper; Cascade connection; MPPT; Optimal control; Photovoltaic;
Conference_Titel :
Power Electronics and Applications, 2007 European Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-92-75815-10-8
Electronic_ISBN :
978-92-75815-10-8
DOI :
10.1109/EPE.2007.4417257
