A study on the simulation scheme for utility interactive PV generation systems

A novel transient phenomenon simulation method for PV power generation system under the real field weather condition (SPRW) has been proposed, and the research and development of PV power generation system is expected to be able to analyze easily cheaply under various conditions with considering the sort of cell, the capacity of system and the used converter system. In this paper, a PV array was simulated being connected up to the power converters. The transient change of the output current of PV array under the real field weather condition was described and also the output current of the DC/AC converter flowing to the utility power network was analyzed with the PWM switching width. Moreover, the MPPT control of the PV power generation system was combined to the system on simulation. The outcome of the simulation demonstrates the effectiveness of the proposed simulation scheme. The result shows that the cost effectiveness verifying for the efficiency or availability and stability of PV generation systems and the comparison research of various control schemes like MPPT under the same weather conditions are possible.