Abstract
The torque and flux ripple of traditional DTC control of PMSM is large, and due to the lack of adaptive control system, the change of the system parameters has a great impact on the steady and transient control performance of the motor speed. Based on the traditional DTC control algorithm, a parameter identification adaptive backstepping DTC control algorithm is proposed in this paper. Because the backstepping controller is used to replace PI controller and flux hysteresis controller, the steady-state and transient performance of the system is obviously improved. At the same time, a parameter identification adaptive controller is designed, which can effectively suppress the influence of parameter changes on the speed control performance. The simulation results verify the correctness and effectiveness of the control algorithm. The control algorithm can significantly improve the steady-state and transient performance of the system under the condition of parameter mutation.
Highlights
The traditional direct torque control (DTC) of permanent magnet synchronous motor(PMSM)[1,2] has the advantages of less parameter dependence and faster response speed
The backstepping control is a kind of nonlinear system control strategy and the decoupling and order reduction of control system are realized by Lyapunov function
In reference [5], a novel sliding mode controller is designed, which combined with space vector modulation, can effectively reduce the torque and flux ripple of traditional DTC
Summary
The traditional direct torque control (DTC) of permanent magnet synchronous motor(PMSM)[1,2] has the advantages of less parameter dependence and faster response speed. In reference [5], a novel sliding mode controller is designed, which combined with space vector modulation, can effectively reduce the torque and flux ripple of traditional DTC. Based on the backstepping control algorithm[6,7], reference [8] proposed a control strategy based on space vector modulation, which has the same response speed as the traditional DTC, while significantly reducing the torque and flux ripple. The backstepping control of PMSM using DTC method is proposed by combining the backstepping control with adaptive control algorithm This method can improve the performance of traditional DTC, and suppress the influence of parameter deviation and improve the robustness of the system
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
