NDLI: Eight-switch CHB-based three-level three-phase shunt active power filter

Content Provider	IET Digital Library
Author	Muneer, V. Bhattacharya, Avik
Abstract	This study presents a reduced switch three-phase three-level H-Bridge-based shunt active power filter (SAPF) for the mitigation of current harmonics, the reduction of current unbalance and the injection of reactive power. This recommended SAPF is developed by using two H-bridge and two DC-link capacitors. Compared to the conventional three-level H Bridge-based SAPF, the eight-switch cascaded H bridge (ES-CHB)-based topology saves four semiconductor switches and one DC-link capacitor. The ES-CHB-based SAPF saves the power electronic components and reduces voltage stress across each switch by introducing a small AC capacitor in series with coupling inductor in each phase. This LC circuit also reduces the harmonic stress of SAPF by tuning at the sixth order of current harmonics. The only drawback of the suggested SAPF is the DC link voltage unbalances. To address this problem, a modified feedback control strategy is proposed in this study. The modified controller regulates the DC link voltage at the desired voltage and mitigates the DC link voltage unbalances, by using reactive power flow control and active power flow control, respectively. The performance of the suggested eight-switch three-level CHB-based SAPF is evaluated through MATLAB simulation and experimentally verified through the hardware implementation.
Starting Page	3511
Ending Page	3521
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 16, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0235
Journal	IET Power Electronics
Publisher Date	2020-08-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Capacitor Active Filter Active Power Flow Control Control of Electric Power System Coupling Inductor Current Control Current Harmonics Mitigation Current Unbalance DC Link Voltage Regulation DC Link Voltage Unbalance Mitigation DC-link Capacitor Eight-switch CHB-based Three-level Three-phase Shunt Active Power Filter Electric Current Control ES-CHB-based SAPF ES-CHB-based Topology Feedback H Bridge-based Topology Harmonic Stress Reduction Harmonics Harmonics Suppression LC Circuit Load Flow Control MATLAB Simulation Modified Feedback Control Strategy Other Power Apparatus And Electric Machine Power And Energy Control Power Capacitor Power Converter Power Electronic Component Power Harmonic Filter Power Supplies to Apparatus Power Supply Quality Reactive Power Control Reactive Power Flow Control Reactive Power Injection Reduced Switch Three-phase Three-level H-bridge-based Shunt Active Power Filter Semiconductor Switches Switching Converter Three-level CHB Three-level H Bridge-based SAPF Three-phase Three-level H-Bridge-based Voltage Control Voltage Stress Reduction
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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