Small disturbance stability analysis of multiphase inverter-fed induction motor drive system

Author

Guo, Yunjun ; Wang, Dong ; Liu, Dezhi ; Chen, Junquan

Author_Institution

Nat. Key Lab. For Vessel Integrated Power Syst. Technol., Naval Univ. of Eng., Wuhan, China

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

The inverter-fed induction motor drive system may become unstable at low frequencies and light load. Taking the inverter-fed five phase induction motor drive system as an example, the small disturbance mathematic model of whole system is deduced, based on small disturbance model of induction motor and switching model of inverter system, the three-dimensional unstable region is presented and discussed by Hurwitz stability criterion of modern control theory, the results of mathematic analysis, simulation and experiments are identical. The effect of variant induction motor parameters, filter-inverter parameters, and operation conditions on system stability is studied in details. The analysis method and the conclusion obtained in the paper may contribute to the design of parameters and stable operation of inverter-fed multiphase induction motor drive system.

Keywords

induction motor drives; invertors; load (electric); machine control; stability criteria; Hurwitz stability criterion; filter-inverter parameters; inverter system; mathematic analysis; multiphase inverter fed induction motor drive system; small disturbance stability analysis; switching model; three-dimensional unstable; Induction motor drives; Inverters; Mathematical model; Power system stability; Stability criteria; Stators; Inverter-fed; multiphase induction motor; small disturbance; stability; switching function;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5608469

Filename

5608469