A hysteresis current control for single-phase multilevel voltage source inverters: PLD implementation

Author

Zare, Firuz ; Ledwich, Gerard

Author_Institution

Sch. of Electr. & Electron. Syst. Eng., Queensland Univ. of Technol., Brisbane, Qld., Australia

Volume

17

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

731

Lastpage

738

Abstract

In most high-performance applications of voltage source pulse-width modulation inverters, current control is an essential part of the overall control system. In this paper, a hysteresis current control technique for a single-phase five-level inverter with flying-capacitor topology is proposed. Logic controls and a programmable logic device are suitable for handling a large number of switches and implementation of state transitions. This method also considers how to improve unbalanced voltages of capacitors using voltage vectors in order to minimize switching losses. The simulation and experimental results describe and verify the current control technique for the inverter.

Keywords

PWM invertors; electric current control; losses; programmable logic devices; switching circuits; PLD implementation; capacitors; control system; flying-capacitor topology; hysteresis current control; logic controls; programmable logic device; pulsewidth modulation; single-phase five-level inverter; single-phase multilevel voltage source inverters; state transitions; switching losses minimisation; unbalanced voltages; voltage vectors; Control systems; Current control; Hysteresis; Logic devices; Programmable control; Programmable logic arrays; Programmable logic devices; Pulse width modulation inverters; Topology; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2002.802192

Filename

1035148