Performance Investigation of Solar PV Integrated STATCOM based Multilevel Inverter

Abstract

Now a days, the renewable energy such as solar, wind, ocean, biomass and geothermal newlinepowers are getting more attention with the increasing demand on energy, high oil prices newlineand concern of environmental impacts are increased. Among them solar photovoltaic newline(PV) generation getting more importance due to absence of fuel cost, low maintenance, newlineno noise, no moving parts and long life time. newlineThe concept of power inverter and the Static Synchronous Compensator (STATCOM) is newlinecombined to make a new power inverter in replacement of the conventional inverters for newlinegrid connection system without battery; which possesses flexible AC transmission system newline(FACTs) capability with no additional cost. STATCOM is the part of FACTs devices. So, newlinethe FACT is a technology which provides a methodology for the utilities to enhance newlinetransmission capability and minimize the gap between the stability and thermal limits and newlineimprove grid reliability. This technology is based on the use of reliable high speed power newlineelectronics, advanced control technology, advanced microcomputer and powerful newlineanalytical tools. This technology is also able to accommodate the variations in the electric newlinetransmission system or operating condition whereas maintaining sufficient transient and newlinesteady state margins and the cost of FACTs technology continues to decreases with power newlinesemiconductor devices. newlineAs a result, the multilevel inverter has been introduced since 1975 as an alternative in newlinehigh power and medium voltage situations. The multilevel term starts from 3-level newlineinverter familiarized by NABAE. newline