scholarly journals Rotor Flux Reference Generation Control Strategy for Direct Torque Controlled DFIG

2018 ◽  
Author(s):  
Gopala Venu Madhav ◽  
Y. P. Obulesu
Keyword(s):  
Control Strategy ◽  
Rotor Flux ◽  
Generation Control

Study on the Vector Control of PMSM Based on a New Controller

2011 ◽  
Vol 403-408 ◽  
pp. 3170-3173
Author(s):  
Wen Ying Xiao ◽  
Qing Yun Pu
Keyword(s):  
Mathematical Model ◽  
Vector Control ◽  
Permanent Magnet ◽  
Control Strategy ◽  
Permanent Magnet Synchronous Motor ◽  
Matlab Simulink ◽  
Static Responses ◽  
Rotor Flux ◽  
Pr Controller ◽  
Vector Control Strategy

Based on anglicizing characteristics of the proportional resonance controller (resonant, PR), against the defects of the PR controller, combined with permanent magnet synchronous motor mathematical model, a rotor flux oriented vector control strategy based on a novel improve the PR controller is introduced. Finally, MATLAB /simulink was used to simulate the model above. The system got good dynamic and static responses, verifying the correctness and feasibility of the proposed method.

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.

Rotor flux magnitude and angle control strategy for doubly fed induction generators

Wind Energy ◽  
2006 ◽  
Vol 9 (5) ◽  
pp. 479-495 ◽  
Author(s):  
Olimpo Anaya-Lara ◽  
F. Michael Hughes ◽  
Nicholas Jenkins ◽  
Goran Strbac
Keyword(s):  
Control Strategy ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Rotor Flux ◽  
Doubly Fed

DC pre-excitation starting control for induction motor base on flux identification and compensation

2019 ◽  
Vol 67 (7) ◽  
pp. 587-598
Author(s):  
Bo Fan ◽  
Leipo Liu ◽  
Zhumu Fu ◽  
Jiangtao Fu
Keyword(s):  
Vector Control ◽  
Control Strategy ◽  
Induction Motors ◽  
Fast Response ◽  
Large Power ◽  
Starting Current ◽  
System A ◽  
Output Torque ◽  
Rotor Flux ◽  
Starting Control

Abstract Vector control can not be well applied directly to the starting of large-power induction motors. The starting current is so large as to cause damage to power-conductors and the whole control system. A novel pre-excitation control strategy is proposed in this paper. A magnetic field is built in large power motor startup firstly, in which DC pre-excitation is adopted and the rotor flux orientation is set to coincide with the center line of motor’s one phase winding. With the completion of this pre-excitation, the control strategy is switched to the vector control. The excitation subsystem and the torque subsystem in the motor can be decoupled dynamically after this pre-excitation and vector control. The experimental results show that the motor’s starting current rises smoothly and its output torque has fast response. This control strategy is capable of reducing the motor’s starting current peak and improving the safety of induction motor’s startup.

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