Effective Harmonic Cancellation Technique for a Three-Phase Four-Wire System

Buddhadeva Sahoo, Mohammed M. Alhaider and Pravat Kumar Rout
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Buddhadeva Sahoo: Electrical Engineering, Silicon Institute of Technology, Sambalpur 768200, India
Mohammed M. Alhaider: College of Engineering at Wadi Addawaser, Electrical Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 16278, Saudi Arabia
Pravat Kumar Rout: Electrical and Electronics Engineering Department, SOA Deemed to be University, Bhubaneswar 751030, India

Energies, 2022, vol. 15, issue 20, 1-26

Abstract: An excess non-linear and unbalanced load application increases the power quality (PQ) problem by injecting harmonic current. The avoidance of neutral current control creates additional PQ problems due to excess circulating current in modern 3 ? 4W applications. Therefore, this manuscript suggests improved ? ? transform-based voltage and current control approaches for both 3 ? 3W and 3 ? 4W shunt active filter (SAF) applications. In the proposed approach, a novel combined voltage and current (NCVC) control approach is presented for modern 3 ? 3W systems by using voltage and closed-loop current controllers. However, due to the absence of a neutral current, the NCVC is not sufficient for 3 ? 4W system application. Therefore, by considering the current reference parameter generated from the NCVC, a novel harmonic compensation technique (NHCT) is proposed with proper mathematical expressions for the 3 ? 4W application. To show the importance of NHCT over traditional P-Q-R control, the developed MATLAB/Simulink model is tested by using different 1 ? and 3 ? nonlinear/unbalanced load conditions. The comparative results indicate that, by using NHCT, the 3 ? 4W system contains a lesser total harmonic distortion (THD) and harmonic mitigation ratio (HMR), less ripple frequency, an improved power factor, a lesser neutral current, and a balanced active/reactive power condition. From the above comparative analysis results, it is found that the overall improvement percentage is 66.78%. The above findings justify the significance of the NCVC and NHCT approach during both unbalanced and non-linear load-based 3 ? 4W applications.

Keywords: shunt active filter (SAF); non-linear/unbalanced load; power quality (PQ); novel harmonic compensation technique (NHCT) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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