Z-source inverter for motor drives

Author

Peng, Fang Zheng ; Joseph, Alan ; Wang, Jin ; Shen, Miaosen ; Chen, Lihua ; Pan, Zhiguo ; Ortiz-Rivera, Eduardo ; Huang, Yi

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

Volume

20

Issue

4

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

857

Lastpage

863

Abstract

This paper presents a Z-source inverter system and control for general-purpose motor drives. The Z-source inverter system employs a unique LC network in the dc link and a small capacitor on the ac side of the diode front end. By controlling the shoot-through duty cycle, the Z-source can produce any desired output ac voltage, even greater than the line voltage. As a result, the new Z-source inverter system provides ride-through capability during voltage sags, reduces line harmonics, improves power factor and reliability, and extends output voltage range. Analysis, simulation, and experimental results will be presented to demonstrate these new features.

Keywords

invertors; machine control; motor drives; LC network; Z-source inverter; capacitor; dc link; diode; duty cycle control; motor drives; Capacitors; Control systems; Diodes; Inverters; Motor drives; Power quality; Power system harmonics; Power system reliability; Power system stability; Voltage control; Line harmonics; Z-source inverter; motor drives; voltage sags;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2005.850938

Filename

1461468