Starting Procedure of Rotational Sensorless PMSM in the Rotating Condition

• Published in: IEEE transactions on industry applications Vol. 45; no. 1; pp. 194 - 202
• Main Authors: Taniguchi, S., Mochiduki, S., Yamakawa, T., Wakao, S., Kondo, K., Yoneyama, T.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-01-2009; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Computer simulation; Frequency estimation; Frequency response; Inverters; Mathematical models; Numerical simulation; Permanent magnet motors; Permanent magnet synchronous motors (PMSMs); Permanent magnets; Rail transportation; Restarting; Rotating; Rotational; rotational sensorless control; Rotors; Sampling; Sampling methods; Sensorless control; starting procedure at rotating condition; Synchronous motors; Voltage
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/TIA.2008.2009496

This paper investigates a starting procedure of rotational sensorless permanent magnet synchronous motor (PMSM) in the rotating condition, which is suitable for some applications with higher maximum rotor frequency and longer current sampling time. Instantaneous estimation of initial rotor position and frequency, right after gates start, is essential for restarting the operation of inverters. Existing estimation methods are not available for the aforementioned applications because of their higher maximum rotor frequency and longer current sampling time. To cope with this problem, we propose a novel initial rotor frequency estimation method. The proposed estimation method is verified by experiments using a 2-kW interior PMSM and a numerical simulation.