Abstract

The most desirable characteristics of today’s power system with distributed energy resources (DER) forming the microgrid is the reliability of the power supply and immunity to various power quality(PQ) issues. It is important to examine PQ issues arising from the introduction of DER and behavior of microgrid with penetration of various loads. In this chapter, reader is introduced to major power quality issues in the microgrid. A number of solutions to tackle these issues and their operating principle are also explained. In addition to the conventional power quality issues, load pulses are frequently encountered and need to be tackled with great care in microgrid. Hence, the hybridization of Energy Storage System (ESS) with different power storage devices such as the ultracapacitors (UCs), Superconducting Magnetic Energy Storage (SMES) devices, and high speed Flywheel Energy Systems (FESs) is proposed to dynamically compensate the power flow balance.

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