• SUMANA S
• Dr Dhanalakshmi R

Microgrids are an eco friendly power system and becoming more attractive to consumers. Micro grids can face several technical issues especially when it is operated in island mode. The key aspect of this paper is to conduct comprehensive study of power quality issues such as voltage imbalance due to requirement of high reactive power ,harmonics caused by power electronic devices and role of custom power devices (CPD’S) such as D STATCOM,DVR and UPQC in mitigation of these issues for micro grid systems. At last, a brief survey on different optimization techniques to solve optimal placement problem of custom power devices is done in this paper.

Micro grid, Distributed generation, power quality, Custom Power devices, optimum location

"OVERVIEW OF CUSTOM POWER DEVICES IN MICROGRID DURING AUTONOMOUS OPERATION MODE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.283-288, April-2019, Available :http://www.jetir.org/papers/JETIR1904L41.pdf

"OVERVIEW OF CUSTOM POWER DEVICES IN MICROGRID DURING AUTONOMOUS OPERATION MODE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp283-288, April-2019, Available at : http://www.jetir.org/papers/JETIR1904L41.pdf