Trends and challenges of next generation grid connected photovoltaic inverter — An overview

摘要

This paper addresses recent trends and technical challenges that need to be addressed and taken care of in order for Grid connected PV system to be at parity with mainstream power generation. The challenges such as frequency regulation, voltage and reactive power control and fault ride through (FRT) capableness, ramp rate control with the help of energy storage system etc. need to be provided by the next generation Grid connected PV inverters have been discussed. Recent trends of these modern power electronics devices to be smart with high efficiency, high reliability and high power density by using of emerging semiconductor technologies and multilevel inverter topologies have been presented.