Publication Type:

Conference Paper


2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy) (2017)


Active filters, Bridge circuits, Capacitors, DC link capacitor voltage, diode bridge rectifier, Fuzzy control, Fuzzy logic, Fuzzy logic controller, Harmonic analysis, harmonics suppression, Hysteresis current controller method and Fuzzy Logic Controller (FLC), instantaneous p-q theory, instantaneous reactive power control method, Instantaneous real and reactive power theory, Nonlinear load, power capacitors, power filters, Power harmonic filters, Power quality, power supply quality, reactive loads, Reactive power, Reactive power compensation, reactive power control, rectifying circuits, shunt active filter (SAF), source harmonics, Voltage control


This paper gives a solution for suppression in harmonics and compensates the reactive power present in a system. For the study, system considered for analysis is of three phase source feeding power to a non-linear and reactive loads. Diode bridge rectifier acts as non-linear load in parallel with a reactive load connected to the supply. Non-linear load creates problems on power quality and reactive power imbalance is created by reactive load. And, these issues can be mitigated through usage of power filters. Shunt Active Filter (SAF) with instantaneous reactive power control method is adopted in this work to mitigate the power quality issues. To maintain the DC link capacitor voltage constant, fuzzy logic controller is developed. The fuzzy logic controller with the instantaneous reactive power controls the DC link capacitor voltage thus would be helpful to suppress the source harmonics and reactive power compensation.

Cite this Research Publication

K. Arya and Dr. Vijaya Chandrakala K. R. M., “Fuzzy logic controller based instantaneous p-q theory for power quality improvement”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.