Title :
Speed control of PMSM based on energy-shaping and PWM signal transformation principle
Author :
Yu, Haisheng ; Zou, Zongwei ; Tang, Yuliang
Author_Institution :
Coll. of Autom. Eng., Qingdao Univ., Qingdao
Abstract :
Speed control of salient pole permanent magnet synchronous motor (PMSM) is studied based on energy-shaping and port-controlled Hamiltonian (PCH) system theory. Firstly, the PCH speed control model of PMSM is established. Secondly, the desired equilibrium point of the system is obtained based on maximum torque per ampere (MTPA) control principle. Then the speed controllers are designed when the load torque is known and unknown, respectively. The stability of equilibrium point is also analyzed. Finally, based on pulse-width modulated (PWM) signal transformation principle, speed regulation of PMSM is implemented by controlling the duty ratio of every converter switch. The simulation results show that the system has good speed tracking and load disturbances attenuation performances.
Keywords :
PWM power convertors; angular velocity control; machine control; permanent magnet motors; synchronous motors; torque control; PWM signal transformation principle; converter switch; duty ratio; energy-shaping; equilibrium point; equilibrium point stability; load disturbances; maximum torque per ampere control principle; port-controlled Hamiltonian system theory; pulse-width modulated signal transformation principle; salient pole permanent magnet synchronous motor; speed control model; speed tracking; Attenuation; Control systems; Permanent magnet motors; Pulse width modulation; Pulse width modulation converters; Stability analysis; Switches; Switching converters; Torque control; Velocity control;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
