Abstract:
Now a days for power generation it is essential to utilize Renewable Energy
Sources. Carbon emissions are polluting our environment, so conventional sources of
energy are to be limited and it is suggested to go for green and clean energy.
Penetration of Renewable Energy Sources into gird is increased and it is a major
concern for power engineers to maintain the power quality. Due to integration of Solar
and Wind energy Systems in Grid, the power quality issues may arise, and grid becomes
weaker. Power grid integration of renewable energy sources is achieved through power
electronic converters. These converters decouple the source from load without providing
inertia. As a result, inertia of the power grid decreases, resulting in undesirable load
shedding and cascading failures under power imbalances. To preserve stability during
contingency events, it is important to add inertia support to the grid. In the presented
work power quality issues are described. Literature review on power quality issues and
its mitigation techniques has been covered. An attempt has been made to discuss about
virtual inertia of Inverter during Grid Integration of Renewable Energy Sources. Inertia
emulation and its control strategy has been proposed. To assure and maintain good
quality of power at all the levels it is needed to develop an efficient technique to resolve
the power quality issues.
