Table 1 State of Art of Survey.

Ref

Method for

Power quality issues addressed

Types of loads selected for study

Renewable power as External supply

Multi-level converters

Metaheuristic algorithm based optimization

Ref signal generation approach

Control scheme for shunt filter

THD

DCBCV stability

Sensitive/ Balanced harmonic

Unbalanced

PV/Wind etc

Reduction in total switches topology

Filter parameters/controller gains