Work

Small signal modelling and analysis of quasi Z-source direct matrix converter for wind energy conversion system

Year: 2025

Type: article

Abstract: To enhance the voltage gain and regulate the output voltage under various loading and wind speeds, the Quasi Z-Source Direct Matrix Converter (QZSDMC) is proposed for PMG-based Direct Drive Wind Energy Conversion Systems (DDWECS). At first, using state space analysis, the small signal model of the QSDMC in space domain has been attained, and the transfer function of QZSDMC has been further calculated and analyzed. The stability analysis of the QZSDMC was conducted and proved that the system remains stable for all ranges of output power without using filter. The proposed QZSDMC based DDWECS with Improved Space Vector Pulse Width Modulation (ISVPWM) Control Scheme was simulated using Matlab and compared with existing methods. The simulation results are validated with 1 kW, 415 V, 50 Hz experimental setup with FPGA Processor. The outcomes are examined using the following metrics: switching stress, boost factor, total harmonic distortion, and efficiency.

Source: Scientific Reports

DOI: 10.1038/s41598-025-16705-y

Authors: K. T. Maheswari, C. Kumar, T. Dharma Raj, Hady H. Fayek

Institutions: Bannari Amman Institute of Technology, Karpagam Academy of Higher Education, Egyptian Chinese University

Language: English

Topic: Multilevel Inverters and Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,690