Abstract
The PV generation system operates in maximum power point of PV array by MPPT (maximum power point tracking) control of power conditioning system (PCS). However, there is a problem that a shadow which covers some panels of the PV array configuration greatly decreases maximum power of the PV array. For this problem, the method which connects MPPT unit to each PV panel is able to suppress decrease of maximum power by shadow. This paper clarifies the appropriate placement of MPPT units from the viewpoint of acquisition of electric power and system stability, simulating P-V and I-V characteristics of some representative patterns connected MPPT unit to each PV panel in the PV array configuration.
