In the high-speed traction permanent magnet synchronous motor (PMSM) drive system, control methods without position and speed sensors are adopted because of occupying smaller space, lower cost, higher reliability and less sensitivity to the environment which is more suitable for motors using in traction vehicles. According to the stator voltage and measured current, the stator flux is integrating from the difference value of the voltage, where back-EMF can be calculated and rotor position can be estimated. Based on the estimating method of integrating back-EMF, this paper proposes a modified integrator to solve the problems produced by the pure integrator, which brings up DC offset to estimating motor flux. Simulation and experiment results show that this integrator can accurately estimate both the magnitude and the phase angle of the motor flux, including the speed of PMSM. Besides, the perfomance of the integrator shows that it has good dynamic and steady characteristics.
A Position Estimation Method Based on Modified Integrator of PMSM Sensorless Control for High-Speed Vehicles
Lect. Notes Electrical Eng.
Proceedings of the 1st International Workshop on High-Speed and Intercity Railways ; Kapitel : 2 ; 9-18
01.01.2012
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
British Library Conference Proceedings | 2012
|Speed Sensor Fault Tolerant PMSM Machines: From Position-Sensorless to Sensorless Control
BASE | 2019
|Extended State Observer-Based Position Sensorless Control for Automotive Ultra-high-Speed PMSM
Springer Verlag | 2023
|