7. ANALYSIS OF DIFFERENT POWER QUALITY IMPROVEMENT TECHNIQUES IN MICROGRID

The infinite energy supply and climate-friendliness of renewable non-traditional energy sources are further benefits. This is where distributed micro generating units, or Mic roGrids (MG), come into play. Power electronic converters connect the MGs, which are small-scale resources that produce electricity, to the main utility. The primary disadvantages of MGs are the ir connection to switching devices and converters, which causes power system disruptions. Due to the widespread usage of micro generating units (MGs) in contemporary power systems, the intermittent nature of renewable energy v sources, the v v greater penetration of nonlinear loads, and the dispersed nature of MGs, significant power quality (PQ) difficulties that are dangerous to both generation and terminates the supply. Reactive power compensation or the production of harmonics that interfere with electrical energy system regular operation might be PQ problems. These concerns need to be addressed as soon as possible in order to preserve good electrical power transmission an d distribution.Utilities have implemented several lucrative programs and techniques to enhance electricity quality aresult consumer pleasure. About 350 recent review articles have been thoroughly examined in this regard, and review article highlights a thorough discussion of the of powe quality issues using filters, controllers, Flexible AC Transmission Systems (FACTS), optimization technique s (OTs), and machine learning tools with modern and advanced control techniques. There is a thoroug h understanding of power quality and how to improv e it in MG.