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http://dx.doi.org/10.7471/ikeee.2019.23.2.543

Speed Controller Transition Method for I-F Operation and Sensorless Operation of Permanent Magnet Synchronous Motor  

Kim, Dong-Uk (Division of Electrical Engineering, Hanyang University, ERICA Campus)
Kim, Sungmin (Division of Electrical Engineering, Hanyang University, ERICA Campus)
Publication Information
Journal of IKEEE / v.23, no.2, 2019 , pp. 543-551 More about this Journal
Abstract
Permanent Magnet Synchronous Motors(PMSMs) have a wider range of applications due to their high output density and high efficiency. PMSMs are used not only in high-power density, high-performance motor-driven systems such as vehicle and robots, but also in systems where cost-cutting is very important, such as washing machines, air conditioners and refrigerators. To reduce costs, position sensorless control is required, which is generally difficult to be used under conditions of starting the motor. Thus, the I-F speed control that rotates the current vector at any speed in the starting procedure should be used at first, and then the sensorless speed control could be applied after PMSM rotates above a certain speed. Speed control performance in I-F speed control and sensorless speed control is very important. And more speed control performance should be maintained even in the transient in which the two control techniques are changed. In this paper, the speed controller transition method from I-F speed control to sensorless speed control of permanent magnet synchronous motor is proposed. Experiments were carried out on the washing machine drive system to verify the performance of the proposed technique.
Keywords
Sensorless Control Transition Method; PMSM Control; Sensorless Control; Speed Control; I-F Control;
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