Indirect-Adaptive Sliding-Mode Voltage Control of the Switched-Inductor Z-Source Inverter

Jelodari Mamaghani, Mehran; Hajihosseini, Mojtaba; Shaheen, Husam

doi:10.22075/mseee.2022.27054.1104

Indirect-Adaptive Sliding-Mode Voltage Control of the Switched-Inductor Z-Source Inverter

Document Type : Research Article

Authors

Mehran Jelodari Mamaghani ¹

Mojtaba Hajihosseini ²

Husam Shaheen ²

¹ Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran.

² Laboratory for Renewable Energy Systems, Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, Croatia.

10.22075/mseee.2022.27054.1104

Abstract

This research presents a new sliding-mode adaptive technique for stabilization of the output voltage of a single-phase Switched Inductor Z-source Inverter (SIZSI) as an interface in renewable energy sources. The proposed method is based on a sliding mode controller modified by an online adaptation of uncertain inverter parameters. The sliding mode controller improves the system's robustness in the face of external disturbances and preserves the system's output for any load, such as linear, nonlinear, and even changing loads. The proposed approach has been simulated in MATLAB/Simulink software package to show the controller's performance. The comparison results with the traditional sliding mode control have been conducted to validate the proposed method's superiority in resolving problems such as adaptive and robust against instantaneous deviations of input voltage and output current. The presented sliding-mode adaptive control technique shows a more efficient dynamic response to the system and less Total Harmonic Distortion (THD) than traditional controllers.

Keywords

Impedance source inverter

switched inductor Z-source inverter (SIZSI)

voltage control

sliding mode control

indirect adaptive control

Subjects

Control System

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