Designs and Applications for the Controller Parameters of the Photovoltaic System

Abstract

the environmental factors and the design parameter of the photovoltaic (PV) power generation system have a large influence on the stability and reliability of the PV system. In order to find scientifically and rationally parameters for the stability of the system in the global control parameter scope, a global optimization method is proposed in this paper, which has a global consideration on the main factors that affect the stability of the system. By using this method, we make an optimization to the control parameter of the PV power generation system, and obtain a set of the optimal control parameters. It is demonstrated by simulation that the global optimization method can lead the PV system have a better stability. Finally, using the optimal control parameters obtained by the global optimization method, we present an analysis for the influences of the ambient and system physics parameters on the stability the PV power generation system, and discovered some rules of the system stability, which can play an important role in the PV system design.