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Fuzzy Controlled Multilevel Inverter Based Shunt Active Power Filter for Harmonics Reduction


Prateek Utkarsha, Shobhna Jain
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This paper presents a five-level cascaded multilevel inverter based Shunt Active Power Filter (SAPF) to compensate reactive power and mitigate the harmonic currents generated by the non-linear loads. The control strategy of SAPF incorporates Synchronous Reference Frame (SRF) theory to extract the harmonic components from distorted line currents which in turn are utilized in the production of required reference compensation currents, Fuzzy logic controller for dc-side voltage regulation of SAPF and multi carrier PWM current controller for the generation of switching pulses for the inverter switches. Extensive simulations are carried out to validate performance of the proposed SAPF system using MATLAB/ SIMULINK for diode bridge rectifier with RL load. To improve the performance of SAPF, a novel control strategy using Fuzzy Logic Controller (FLC) is proposed which eliminates the drawback of using fixed gains in conventional PI controller. From the simulation results the proposed fuzzy controlled Multi Level Inverter based SAPF provides effective and efficient mitigation of harmonics.

Prateek Utkarsha, Shobhna Jain

Cascaded H-Bridge Multilevel Inverter (CHBMLI), Shunt Active Power Filters (SAPFs), synchronous reference frame (SRF) theory, multi carrier PWM, harmonic current compensation.

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Publication Details

Published in : Volume 3 | Issue 2 | March-April - 2017
Date of Publication Print ISSN Online ISSN
2017-04-30 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
527-534 IJSRSET1732169   Technoscience Academy

Cite This Article

Prateek Utkarsha, Shobhna Jain, "Fuzzy Controlled Multilevel Inverter Based Shunt Active Power Filter for Harmonics Reduction", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 2, pp.527-534, March-April-2017.
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