Title :
New approach for high-performance PMSM drives without rotational position sensors
Author :
Kim, Joohn-Sheok ; Sul, Seung-Ki
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
9/1/1997 12:00:00 AM
Abstract :
A new approach to the position sensor elimination of permanent magnet synchronous motor (PMSM) drives is presented in this paper. With the help of the modern drive technique, the actual rotor position as well as the machine speed can be estimated accurately even in the transient state using the “electrical steady-state” operation concepts. Due to the angle-modification scheme with error-tracking function, the sensorless drive system has robustness to parameter variations. As well as giving a detailed explanation of the new algorithm, the paper presents a wide range of experimental results, demonstrating the feasibility of the proposed method under full operating conditions in the ±50~±2000 [RPM] speed range and 0~1 per unit (p.u.) load conditions
Keywords :
control system analysis; control system synthesis; machine control; machine testing; machine theory; parameter estimation; permanent magnet motors; position control; robust control; rotors; synchronous motor drives; variable speed drives; velocity control; algorithm; angle-modification scheme; control design; control performance; control simulation; electrical steady-state operation; error-tracking function; feasibility; full operating conditions; machine speed estimation; parameter variations; permanent magnet synchronous motor drives; position sensor elimination; robustness; rotor position estimation; transient state; Magnetic sensors; Permanent magnet machines; Permanent magnet motors; Sensor systems; Sensorless control; State estimation; Stators; Steady-state; Synchronous motors; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
