An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter

Sumaya Jahan, Shuvra Prokash Biswas, Md. Kamal Hosain, Md. Rabiul Islam, Safa Haq, Abbas Z. Kouzani and M A Parvez Mahmud
Additional contact information
Sumaya Jahan: Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
Shuvra Prokash Biswas: Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
Md. Kamal Hosain: Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
Md. Rabiul Islam: School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
Safa Haq: Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
Abbas Z. Kouzani: School of Engineering, Deakin University, Geelong, VIC 3216, Australia
M A Parvez Mahmud: School of Engineering, Deakin University, Geelong, VIC 3216, Australia

Sustainability, 2021, vol. 13, issue 2, 1-20

Abstract: The use of different control techniques has become very popular for controlling the performance of grid-connected photovoltaic (PV) systems. Although the proportional-integral (PI) control technique is very popular, there are some difficulties such as less stability, slow dynamic response, low reference tracking capability, and lower output power quality in solar PV applications. In this paper, a robust, fast, and dynamic proportional-integral resonance controller with a harmonic and lead compensator (PIR + HC + LC) is proposed to control the current of a 15-level neutral-point-clamped (NPC) multilevel inverter. The proposed controlled is basically a proportional-integral resonance (PIR) controller with the feedback of a harmonic compensator and a lead compensator. The performance of the proposed controller is analyzed in a MATLAB/Simulink environment. The simulation result represents admirable performance in terms of stability, sudden load change response, fault handling capability, reference tracking capability, and total harmonic distortion (THD) than those of the existing controllers. The responses of the inverter and grid outlets under different conditions are also analyzed. The harmonic compensator decreases the lower order harmonics of grid voltage and current, and the lead compensator provides the phase lead. It is expected that the proposed controller is a dynamic aspirant in the grid-connected PV system.

Keywords: total harmonic distortion; controller; power quality; lead compensator; harmonic compensator; phase-locked loop; multilevel inverter; grid synchronization (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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