Modified two-degree-freedom Internal Model Control and its application

Author

Yuanshen, Zhou ; Xirong, Zhu

Author_Institution

Dept. of Electron. Eng., Huaihai Inst. of Technol., Lianyungang, China

fYear

2009

fDate

17-19 June 2009

Firstpage

1668

Lastpage

1672

Abstract

A conventional Internal Model Control (IMC) method cannot be applied to solve the contradiction of the output tracking and the load disturbance rejection performance. In order to overcome the shortcomings of it, two-degree-freedom (2DOF) IMC is applied to solve the problem, but the conventional 2DOF-IMC has a complex control structure and method. This paper presents the modified 2DOF-IMC method that has a simple structure and control method. The modified 2DOF-IMC is applied in the speed drive system of Induction Machine (IM). Rotor flux & speed 2DOF controllers are designed, The characteristics of modified 2DOF-IMC have been verified by computer simulation. Theoretical analysis and simulation results show that the output tracking and outer disturbance regulation characteristics of speed control system are regulated respectively by using rotor flux & speed controllers based on modified 2DOF-IMC, the proposed controller provides very good dynamic response performance.

Keywords

control system synthesis; induction motors; large-scale systems; machine control; complex control structure; induction machine; load disturbance rejection performance; modified two-degree-freedom internal model control; outer disturbance regulation characteristics; output tracking; rotor flux; speed control system; Analytical models; Automatic speech recognition; Computational modeling; Computer simulation; Electronic mail; Induction machines; Performance analysis; Rotors; Velocity control; Induction Motor (IM); Modified Two-Degree-Freedom Internal Model Control(Modified 2DOF-IMC);

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference, 2009. CCDC '09. Chinese

Conference_Location

Guilin

Print_ISBN

978-1-4244-2722-2

Electronic_ISBN

978-1-4244-2723-9

Type

conf

DOI

10.1109/CCDC.2009.5192241

Filename

5192241