GE Global Patent Operation
Method and system for controlling motor
A method for controlling a motor is provided. The method comprises obtaining electrical signals of the motor with a signal unit, the electrical signals comprising a motor torque and an angular velocity, calculating a voltage phase angle of a voltage vector with a calculating component, wherein a command torque, the motor torque, the angular velocity and a voltage amplitude of the voltage vector are inputs of the calculating component, and wherein the voltage phase angle is a variable and the voltage amplitude is a constant. The method further comprises modulating the voltage phase angle and the voltage amplitude to a switching signal for controlling an inverter; converting a direct current voltage to the voltage vector according to the switching signal, and applying the voltage vector to the motor.
General Electric Company
B H H Y B B
B60L H02P H02P Y02T B60L B60L
additional inventional inventional additional additional inventional
Zili Tong Xiangming Yong Xiao Pengju Ronghui
Cai Zhao Shen Li Chen Kang Zhou