A control scheme for three level inverter

Author

Schiop, Adrian ; Popescu, Viorel ; Trip, Daniel

Author_Institution

Dept. of Electron., Oradea Univ., Romania

Volume

2

fYear

2005

fDate

14-15 July 2005

Firstpage

461

Abstract

In this paper a control strategy for a three-level neutral point clamped inverter (NPC) is described on the assumption that the inverter feed an induction motor drive with vector control. In the NPC inverter, the three level pulse width modulation (PWM) techniques based on the sine triangle FWM and space vector modulation are used to drive the induction motor. A model of induction machine is developed so that the d-axis is always aligned with the rotor flux-linkage space vector such that the rotor flux linkage in the q-axis is zero. The purpose of the proposed control strategies is to achieve an adjustable-speed drive. Simulation is supplied to confirm the validity of the proposed method.

Keywords

PWM invertors; induction motor drives; adjustable speed drive; induction machine; induction motor drive; neutral point clamped inverter; pulse width modulation techniques; rotor flux linkage space vector; sine triangle FWM; space vector modulation; three level inverter; vector control; Couplings; Feeds; Induction machines; Induction motor drives; Induction motors; Machine vector control; Pulse inverters; Pulse width modulation inverters; Rotors; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Circuits and Systems, 2005. ISSCS 2005. International Symposium on

Print_ISBN

0-7803-9029-6

Type

conf

DOI

10.1109/ISSCS.2005.1511277

Filename

1511277