An Impedance Network-Based Three Level Quasi Neutral Point Clamped Inverter with High Voltage Gain

Muhammad Aqeel Anwar, Ghulam Abbas, Irfan Khan, Ahmed Bilal Awan, Umar Farooq and Saad Saleem Khan
Additional contact information
Muhammad Aqeel Anwar: Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan
Ghulam Abbas: Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan
Irfan Khan: Marine Engineering Technology Department in a Joint Appointment with the Electrical and Computer Engineering Department, Texas A&M University, Galveston, TX 77554, USA
Ahmed Bilal Awan: Department of Electrical Engineering, College of Engineering, Majmaah University, Al-Majmaah 11952, Saudi Arabia
Umar Farooq: Department of Electrical Engineering, University of the Punjab, Lahore 54590, Pakistan
Saad Saleem Khan: Department of Electrical Engineering, UAE University, Al-Ain 64141, UAE

Energies, 2020, vol. 13, issue 5, 1-22

Abstract: Due to the impediments of voltage source inverter and current source inverter, Z-Source Inverter (ZSI) has become notorious for better power quality in low and medium power applications. Several modifications are proposed for impedance source in the form of Quasi Z-Source Inverter (QZSI) and Neutral Point Clamped Z-Source Inverter (NPCZSI). However, due to the discontinuity of the source current, NPCZSI is not suitable for some applications, i.e., fuel cell, UPS, and hybrid electric vehicles. Although in later advancements, source current becomes continuous in multilevel QZSI, low voltage gain, higher shoot-through duty ratio, lesser availability of modulation index, and higher voltage stress across switches are still an obstacle in NPCZSI. In this research work, a three-level high voltage gain Neutral Point Clamped Inverter (NPCI) that gives three-level AC output in a single stage, is proposed to boost up the DC voltage at the desired level. At the same time, it detains all the merits of previous topologies of three-level NPCZSI/QZSI. Simulations have been done in the MATLAB/Simulink environment to show the effectiveness of the proposed inverter topology.

Keywords: Neutral Point Clamped Z-Source Inverter (NPCZSI); shoot-through duty ratio; modulation index; voltage gain; power quality (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: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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