Patent ID: 8063595
Filing Date: 2011-11-22
Classification: H02P

Abstract:
1. A location system configured to determine an initial magnetic pole position of a motor, the location system comprising: a motor driver; a current control module configured for setting current of the motor via the motor driver; a current feedback apparatus configured for detecting an actual current of the motor; a speed feedback apparatus configured for detecting an actual speed of the motor; a location feedback apparatus configured for detecting a location of a rotor of the motor; a magnetic pole position feedback apparatus configured for processing a magnetic pole position of the motor; and a magnetic pole position location module configured for setting a magnetic pole position of the motor, receiving the actual current from the current feedback apparatus, receiving the actual speed from the speed feedback apparatus, receiving the location of the rotor of the motor from the location feedback apparatus, and processing the actual current and the actual speed to obtain an initial magnetic pole position, wherein a reduction in the actual current causes the motor to achieve a greater speed such that the motor being at the initial magnetic pole position causes the motor to achieve a peak actual speed.