Comparative analysis of conventional and modified peak-detection based control technique for cascaded H-bridge multilevel inverter based shunt active power filter

• Published in: 2017 Innovations in Power and Advanced Computing Technologies (i-PACT) pp. 1 - 6
• Main Authors: Ray, Soumyadeep, Gupta, Nitin, Gupta, R. A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.04.2017
• Subjects: Active filters; Cascaded H-Bridge; Control theory; Harmonic analysis; Inverters; Mathematical model; Multilevel Inverter; Peak-detection Based Algorithm; Power harmonic filters; Shunt Active Power Filter; Voltage control
• DOI: 10.1109/IPACT.2017.8244898

This paper presents a modified peak-detection algorithm based control theory for three-phase, three-wire (3P-3W) Shunt Active Power Filter (SAPF) where Cascaded H-Bridge Multilevel Inverter (CHB-MLI) is used as a voltage source inverter (VSI) unit for reactive power compensation, power factor correction and harmonic mitigation in medium-voltage and high-power distribution system. The proposed control theory is implemented in MATLAB/Simulink platform and a rigorous comparative analysis is done with well known p-q theory and synchronous reference frame (SRF) theory to prove its effectiveness. Comparative study shows that modified control algorithm gives better transient performance in terms of settling time and peak overshoot.