Comparison of Multicarrier PWM Strategies for Five-level Z-Source Diode-Clamped Inverter for On-Grid Renewable Energies Applications

Authors

  • M. Nasiri Electrical Engineering Department Amirkabir University of Technology Author
  • G. B. Gharehpetian Electrical Engineering Department Amirkabir University of Technology Author
  • J. Milimonfared Electrical Engineering Department Amirkabir University of Technology Author

DOI:

https://doi.org/10.24084/repqj10.274

Keywords:

Multicarrier PWM strategies, multilevel inverter, renewable energies, Z-Source inverter

Abstract

Multilevel Z-source inverters have been proposed as a solution for HV applications. This type of inverters decreases the Total Harmonic Distortion (THD) and has a good performance for different applications such as Flexible AC Transmission Systems, power quality improvement and connecting renewable energy resources to the network. This paper compares several alternative carrier disposition PWM strategies for a five-level Z-source diode-clamped inverter. These strategies are simulated in MATLAB/Simulink. The simulation results illustrate that using Phase Disposition (PD) method, the voltage THD decreases considerably. Also, Alternative Phase Opposition Disposition (APOD) method increases the voltage magnitude more than PD method. Both methods can be effectively used for connecting renewable energy sources to the power grid.

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Published

2024-01-15

Issue

Vol. 10 No. 2 (2012)

Section

Articles