With the growing concerns of economical and environmental issues arising from centralized electrical generation, transmission and distribution (GTD), distributed generation (DG) has become of high interest to help reduce these impacts. However, most machines (electric generators) used in DG are induction motors (asynchronous) which have some limitations that cannot be overlooked. One limitation is the shortage of reactive power needed to maintain the voltage required to deliver active power.

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... pite this limitation, technical advancements have been made in the use of power electronic converters to obtain reliable and secure operations of power system. Various means of reactive power compensation in DG and its utilization are discussed in this paper.