Optimal Sizing and Placement of Distributed Generation Units in Distribution Network by using different Optimization Technique: A Review

Conventional energy resources are on the verge on depletion but at same time energy demand is increasing.To cater this demand renewable energy based Distributed Energy Resources (DER) are useful.The DER installation mainly helpful for the areas, where the main grid system is unable to reach, or small and remote area where the transmission lines installation is very difficult or are almost impossible.Use of DER along with the existing distribution system provide uninterrupted power which improves system performance.The important part of modern grid system is Microgrid.For proper working of distribution system optimal sizing and placement of DER is very much important.There are many algorithms of optimization.This paper covers an overview of various solution techniques and objective functions along with various constraints which is pertinent for the solution of optimal sizing and siting problem of DG are discussed and compared.