Title :
Accurate estimation of initial rotor position for brushless DC motor position sensorless drive
Author :
Hatakeyama, Kentarou ; Nakano, Shinsuke ; Kurita, Nobuyuki ; Ishikawa, Takeo
Author_Institution :
Dept. of Electron. Eng., Gunma Univ., Kiryu, Japan
Abstract :
It is necessary to estimate the initial rotor position accurately when the sensorless control is applied to brushless DC motor. First, we explain the estimation method of initial rotor position. Next, we investigate the influence of the amplitude and frequency of high-frequency input voltage on the estimation accuracy and obtain the optimal values. The brushless DC motor can start smoothly by using four optimal values of high-frequency input voltage.
Keywords :
brushless DC motors; rotors; sensorless machine control; brushless DC motor position sensorless drive; initial rotor position estimation; input voltage frequency; voltage amplitude; Amplitude estimation; Brushless DC motors; DC motors; Frequency estimation; Permanent magnet motors; Pulse width modulation inverters; Rotors; Sensorless control; Synchronous motors; Voltage control; Brushless DC Motor; Initial Position Estimation; Sensorless Drive;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382874
