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Previous researches have been conducted on the multi-degree of freedom operation motor, a new mechanism for power conversion out of the existing motor from early in 2000. Various types of structure have been suggested to operate more than two-degree of freedom (DOF) from one point of action and control methods have been studied appropriately for each structure. This led to overall improvement in interpreting...
This paper presents starting method using position estimation for sensorless permanent magnet synchronous motor (PMSM). The position estimation method with calculation of parameter of motor is used. To drive the motor in low speed, it can be accomplished in several ways. The rotor position estimation is performed at low speed and at standstill. After initial rotor position is determined by open loop...
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