Studies on relationships between extraction algorithms and voltage controllers for shunt active power filter

In the operation of Shunt Active Power Filters (SAPFs), the choose of extraction algorithm and voltage controller is very essential. Hence, this work focuses in investigating the relationship of different extraction algorithms and voltage controllers on the operation of SAPFs. Two types of extraction algorithms and voltage controllers are applied. There are Type 1 and Type 2 extraction algorithms and Proportional (P) and Proportional-Integral (PI) voltage controllers respectively. In this work, each extraction algorithm implements both voltage controllers at different time interval. Then, the effectiveness of each extraction algorithm in generating reference signal and how it affects the SAPF performance is studied. The simulation work has validated that the operation of both extraction algorithms and voltage controllers are related to each other. The performance of SAPF is varied with the different combination of extraction algorithms and voltage controllers. The use of Type 1 extraction algorithm is more flexible than Type 2 extraction algorithm.