Title :
Two estimation method of sensorless permanent magnet synchronous wotors
Author :
Xinsheng, Wang ; Feifei, Wang ; Huaqiang, Zhang
Author_Institution :
Harbin Inst. of Technol. at Weihai, Harbin
Abstract :
In this paper, two methods are introduced to estimate the position and speed of permanent magnet synchronous motors (PMSM). They are based on EMF and MRAS. The first method estimates the back electromotive force (EMF), then calculates rotor position and speed. In the second method, the model of PMSM is reference model and motor current is adjustable model. The derivation process and the simulation result are given, the result shows both of them have their advantages which can be used separately to obtain the unity of rapidity and stability.
Keywords :
electric potential; permanent magnet motors; synchronous motors; EMF; MRAS; back electromotive force; sensorless permanent magnet synchronous motors; two estimation method; Magnetic sensors; Mechanical sensors; Permanent magnet motors; Permanent magnets; Rotors; Sensor systems; State estimation; Stators; Synchronous motors; Voltage;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. 2nd International Symposium on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-3908-9
Electronic_ISBN :
978-1-4244-2386-6
DOI :
10.1109/ISSCAA.2008.4776138
