Performance evaluation of custom Power devices for mitigating Power quality problems

Abstract

This research is a proposed methodology for diagnosing the Power newlineQuality PQ problems that occur in power system by analyzing the custom newlinepower devices Custom power is a strategy designed primarily to meet the newlinerequirements of industrial and commercial customers The concept of custom newlinepower consists of the employment of power electronic or static controllers in newlinemedium voltage distribution systems to supply a reliable and high quality of newlinepower that are needed by sensitive users newlineThe converter based custom power device is used to mitigate newlinevoltage variation and interruptions Three major types of converter based newlinecustom power devices they are shunt connected devices known as D Statcom newlineand series connected devices known as DVR and series shunt connected newlinedevices known as Unified Series Shunt Compensator USSC Pollution is newlineintroduced into power system by nonlinear loads such as transformers newlinesaturated coils and power electronic converters