A robust speed controller for switched reluctance motor with nonlinear QFT design approach

Author

Lucas, Caro ; Shanehchi, M. Modir ; Asadi, Peyman ; Rad, Peyvand Mellati

Author_Institution

Sch. of Intelligent Syst., Inst. of Theor. Phys. & Math., Tehran, Iran

Volume

3

fYear

2000

fDate

2000

Firstpage

1573

Abstract

Robustness and simplicity are necessary requirements for general purpose adjustable speed SRM drives and quantitative feedback theory is a powerful robust control design method in which trade-offs between control design objectives and considerations are very transparent. Due to special structure and switching operation, an SRM has highly nonlinear characteristics. In this paper, firstly the nonlinear characteristics of the motor are replaced with equivalent disturbance and uncertainty. Then, QFT design is done for the equivalent model. The design is implemented on a 4 kW drive and simulation and experimental results show the effectiveness of this method in obtaining control objectives

Keywords

control system analysis; control system synthesis; feedback; machine control; machine theory; nonlinear control systems; reluctance motor drives; robust control; variable speed drives; velocity control; 4 kW; adjustable speed SRM drives; disturbance; equivalent model; nonlinear QFT design approach; nonlinear characteristics; quantitative feedback theory; robust control design; robust speed controller; switched reluctance motor; switching operation; uncertainty; Control design; Design methodology; Feedback; Nonlinear equations; Reluctance machines; Reluctance motors; Robust control; Rotors; Transfer functions; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2000. Conference Record of the 2000 IEEE

Conference_Location

Rome

ISSN

0197-2618

Print_ISBN

0-7803-6401-5

Type

conf

DOI

10.1109/IAS.2000.882092

Filename

882092