Advanced wavelet transform based shunt hybrid active filter in PV integrated power distribution system for power quality enhancement. Issue 4 (1st December 2020)

• Record Type: Journal Article
• Authors: Ranjan Das, Soumya; Mishra, Alok K.; Ray, Prakash K.; Mohanty, Asit; Mishra, Dillip K.; Li, Li; Hossain, M.J.; Mallick, Ranjan K.
• Is Part Of: IET energy systems integration. Volume 2:Issue 4(2020)
• Page Start: 331
• Page End: 343
• Publication Date: 2020-12-01
• Subjects: power generation control -- PI control -- fuzzy control -- power supply quality -- distributed power generation -- invertors -- power harmonic filters -- least mean squares methods -- trees (mathematics) -- wavelet transforms -- photovoltaic power systems -- active filters -- maximum power point trackers -- perturbation techniques -- adaptive control -- power generation reliability; nonlinear loads -- active distribution system -- shunt hybrid active filter -- advanced signal processing approach -- dual tree‐complex wavelet transform -- DT‐CWT -- PQ disturbances -- switching signals -- ZA‐LMS -- maximum power point tracking -- proportional‐integral controllers -- fuzzy‐PI based SHAF technique -- PQ improvements -- PV integrated power distribution system -- power quality enhancement -- generation system -- fuzzy‐PI controllers -- photovoltaic coupled hybrid filter -- reference current -- MATLAB‐Simulink -- normalised LMS -- inverter‐fed distributed generation system -- grid network -- adaptive perturb and observe‐fuzzy algorithm; Power resources -- Periodicals; Energy conservation -- Periodicals; Power resources; Energy conservation; Periodicals; 333.79
• DOI: 10.1049/iet-esi.2020.0015
• Languages: English
• ISSNs: 2516-8401

Abstract

Abstract : Power quality (PQ) issues are significant in inverter‐fed distributed generation system with non‐linear loads which degrades the performance of the consumer equipments and the power system itself. Therefore, this work presents an improved photovoltaic (PV) coupled hybrid filter for the improvement in PQ in an active distribution system. A shunt hybrid active filter (SHAF) integrated with PV is designed with the help of an advanced signal processing approach called dual tree‐complex wavelet transform (DT‐CWT) for extracting the frequency information in the voltage and current due to the PQ disturbances. For calculating the reference current and switching signals, zero attracting least mean square (ZA‐LMS) is considered in the hybrid filter and adaptive perturb and observe‐fuzzy algorithm is proposed for maximum power point tracking in PV system to improve the performance under different operating conditions. The system model using the proposed technique is developed in MATLAB/Simulink and real‐time experimental set up using two different controllers, i.e. the conventional proportional‐integral (PI) and fuzzy‐PI controllers. The results on comparison illustrates better performance of the proposed ZA‐LMS and DT‐CWT with fuzzy‐PI based SHAF technique for PQ improvements with respect to that of LMS/normalised LMS with PI/fuzzy‐PI based SHAF under different operating scenarios.