4.6 Article

Adaptive fuzzy controlled hybrid shunt active power filter for power quality enhancement

Journal

NEURAL COMPUTING & APPLICATIONS
Volume 33, Issue 5, Pages 1435-1452

Publisher

SPRINGER LONDON LTD
DOI: 10.1007/s00521-020-05027-x

Keywords

Adaptive fuzzy hysteresis current controller; Harmonic compensation hybrid shunt active power filter; Power quality

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This paper introduces a novel switching pulse generation methodology based on adaptive fuzzy hysteresis current controlled hybrid shunt active power filter (A-F-HCC-HSAPF) for compensating reactive power and harmonics in distribution networks. The proposed method effectively mitigates harmonic issues and improves system efficiency.
A novel switching pulse generation methodology based on adaptive fuzzy hysteresis current controlled hybrid shunt active power filter (A-F-HCC-HSAPF) is presented in this paper for compensating reactive power and harmonics in distribution network. The harmonic problems are mainly evolved because of extensive use of nonlinear loads in industry and domestic sectors. There are some adverse effects of harmonics such as: malfunctioning of sensitive equipment, resonance issues, conductors heating, power losses and reduced efficiency in distribution system. To mitigate harmonics issues passive, filters are used but when the harmonic component increases the design of passive filters is complex and becomes bulky. With the advancement in power electronic, the active power filter has been designed. Generally, the rating of the active filter is very high for some applications; hence hybrid shunt active power filter (HSAPF) is proposed by low-rated shunt active power filter (SAPF) and low-cost shunt passive filter. Proportional-integral or fuzzy logic controller is used to estimate the reference current and to regulate the dc capacitor voltage. To generate the switching pulse for the voltage source inverter of the SAPF, a novel adaptive fuzzy hysteresis current controller (A-F-HCC) is adopted. The performance of the proposed A-F-HCC-HSAPF is investigated during steady-state and transient conditions using MATLAB/Simulink and real-time environments.

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