Three-level inverter-fed synchronous motor drive system

Author

Amin, Amr M A

Author_Institution

Fac. of Eng. & Technol., Helwan Univ., Cairo, Egypt

Volume

2

fYear

1999

fDate

1999

Firstpage

1193

Abstract

In this paper a simple mathematical model of the three-level inverter-fed synchronous motor drive system is presented. The three-level inverter would allow high voltage and high power sharing among its switching devices. It also reduces the devices switching frequency. Speed control of the presented drive system may be achieved using numerous numbers of modulation schemes. Two modulation schemes are presented, the single pulse-width-modulation (SPWM), and the multiple pulse-width-modulation (MPWM). Under the aspect of harmonic current reduction, the MPWM scheme has a much lower harmonic content than SPWM scheme. The developed model is adaptable to inverters of any higher number of voltage levels. A laboratory prototype of the presented drive system is tested. Experimental results proved a very promising drive system

Keywords

PWM invertors; angular velocity control; machine control; switching circuits; synchronous motor drives; device switching frequency reduction; harmonic current reduction; high power sharing; high voltage; inverter-fed synchronous motor drive system; mathematical model; multiple pulse-width-modulation; single pulse-width-modulation; speed control; switching devices; three-level inverter; Laboratories; Mathematical model; Prototypes; Pulse modulation; Pulse width modulation inverters; Switching frequency; Synchronous motors; System testing; Velocity control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.801655

Filename

801655