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
Abstract :
A new approach to the position sensor elimination of the 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 strictly even in the transient state using the `quasi-steady-state´ operation concepts. Due to the angle modification scheme with error tracking fashion, the sensorless drive system has the robustness to the parameter variation. 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, 50-2000 RPM speed range and 0~1 p.u. load condition
Keywords :
machine theory; parameter estimation; permanent magnet motors; synchronous motor drives; transient analysis; angle modification; error tracking; machine speed estimation; parameter variation; permanent magnet motor drives; position sensor elimination; quasi-steady-state; rotational position sensors; rotor position; sensorless drive system; transient state; Degradation; Equations; Error correction; Load management; Magnetic flux; Magnetic sensors; Sensor phenomena and characterization; Sensor systems and applications; State estimation; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.468976
