Decoupling control of bearingless synchronous reluctance motor based on inverse system method

2010 ◽  
Author(s):  
Huangqiu Zhu ◽  
Tingting Zhang ◽  
Hualei Zou ◽  
Xiaoyan Diao
Keyword(s):  
Inverse System ◽  
Decoupling Control ◽  
Inverse System Method ◽  
Synchronous Reluctance Motor ◽  
System Method ◽  
Reluctance Motor

scholarly journals Decoupling Control for Dual-Winding Bearingless Switched Reluctance Motor Based on Improved Inverse System Method

2017 ◽  
Vol 2017 ◽  
pp. 1-17 ◽  
Author(s):  
Zhiying Zhu ◽  
Yukun Sun ◽  
Ye Yuan
Keyword(s):  
High Speed ◽  
Switched Reluctance Motor ◽  
Inverse System ◽  
Decoupling Control ◽  
System Stability ◽  
Dynamic Compensation ◽  
Switched Reluctance ◽  
Inverse System Method ◽  
System Method ◽  
Reluctance Motor

Dual-winding bearingless switched reluctance motor (BSRM) is a multivariable high-nonlinear system characterized by strong coupling, and it is not completely reversible. In this paper, a new decoupling control strategy based on improved inverse system method is proposed. Robust servo regulator is adopted for the decoupled plants to guarantee control performances and robustness. A phase dynamic compensation filter is also designed to improve system stability at high-speed. In order to explain the advantages of the proposed method, traditional methods are compared. The tracking and decoupling characteristics as well as disturbance rejection and robustness are deeply analyzed. Simulation and experiments results show that the decoupling control of dual-winding BSRM in both reversible and irreversible domains can be successfully resolved with the improved inverse system method. The stability and robustness problems induced by inverse controller can be effectively solved by introducing robust servo regulator and dynamic compensation filter.

Decoupling Control Strategy of Three-Phase Bearingless Induction Motor

2013 ◽  
Vol 433-435 ◽  
pp. 1154-1160
Author(s):  
Wen Shao Bu ◽  
Cong Lin Zu ◽  
Chun Xiao Lu ◽  
Xin Wen Niu
Keyword(s):  
Induction Motor ◽  
Control Strategy ◽  
Inverse System ◽  
Decoupling Control ◽  
Inverse System Method ◽  
Object A ◽  
System Method ◽  
Three Phase ◽  
Nonlinear Object ◽  
Rotor Flux

For the strong coupling problem of three-phase bearingless induction motor which is a multi- variable and nonlinear object, a kind of decoupling control strategy based on inverse system method is proposed. The reversibility of torque subsystem was analyzed based on rotor flux orientation, and the decoupling control strategy based on inverse system method was analyzed. Then the torque system was decoupled into two second-order linear subsystems, i.e. the rotor speed subsystems and the rotor flux subsystems. The suspension system adopts negative feedback control; the required air-gap flux linkage of torque system was obtained from the rotor flux and stator current. Finally, synthesis and simulation of the overall control system were researched. Simulation results demonstrate that good performance of decoupling control can be achieved. The presented control strategy is feasible and available.

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