Research on low voltage ride through characteristics of distributed photovoltaic system

The model of distributed PV is constructed firstly, then the characteristics of distributed PV are studied and the electromechanical transient current equations are given. Using the actual PV grid-connected controller, a simulation system based on PSASP simulation platform is built. Through this system, the transient power characteristics of distributed PV during low voltage ride-through period are studied. Through theoretical analysis and experimental verification, the fault characteristics of distributed photovoltaic power supply are comprehensively expounded.