Neutral point inverter controller using H infinity techniques

M. Alsharif, Ali Omar (2014) Neutral point inverter controller using H infinity techniques. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

For applications in renewable energy and distributed generation, there is often a need to have a neutral line to provide a current path. This can be achieved by using a neutral-point circuit that consists of a conventional neutral leg and a split dc link. In this project, a H infinity (H∞ ) current controller is proposed to force the current flowing through the split dc link to be nearly zero so that the neutral-point current is stable, and then, a current control loop is added to eliminate the imbalance of the current so that the neutral-point current is balanced with respect to the dc terminals. This leads to very small deviations of the neutral point from the mid-point of the DC source, in spite of the possibly large neutral current. Simulation of inverter circuit, neutral-point and H infinity (H∞ ) has been performed using MATLAB/SIMULINK software. The simulation results confirm the validity of the proposed method

Item Type:	Thesis (Masters)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions:	Faculty of Electrical and Electronic Engineering > Department of Electrical Engineering
Depositing User:	Mrs. Sabarina Che Mat
Date Deposited:	03 Oct 2021 07:24
Last Modified:	03 Oct 2021 07:24
URI:	http://eprints.uthm.edu.my/id/eprint/1450

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