LIMITS OF DC BUS BEHAVIOR ON PHOTOVOLTAIC SYSTEMS IN DISTRIBUTED ARCHITECTURE

Abstract

This study focuses on a photovoltaic (PV) chain constituted by a photovoltaic (PV) generator, a boost converter and a load. The principal target is to study a distributed photovoltaic (PV) architecture feeding a direct current bus. To do this we will outline a new vision concerning the influence of environmental variables, solar irradiance and temperature on the position of the maximum power point. Thereafter we analyzed the influence of load variation on the behavior of the boost converter and we deduced the limits of the imposed load on the converter. Thus, the displacement of the maximum power point due to the influence of the simultaneous variation of the duty cycle and load on the parameters of the photovoltaic chain components is discussed by an original way.