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Design and verification of forced dynamics position control of a drive with a linear permanent magnet synchronous motor is presented. This control method is a relatively new one and using the principles of feedback linearisation offers an accurate realisation of a dynamic speed and position response, which can be selected for a given application by the user. In addition to this, the primary part current...
The authors propose a novel extended flux estimating method for an interior permanent magnet synchronous motor. By using the proposed method, an extended flux can be systematically derived. Then, the shaft position and speed of the motor can be obtained. Starting from a standstill and at a low-speed range control, a current-slope estimating method is used to replace the extended flux method because...
This paper presents a method for sensorless speed control of a non-salient permanent magnetic synchronous motor (PMSM). Special attention is put on the neural-based strategies and applied to the sensorless PMSM. An embedded hybrid Hinfin adaptive controller is implemented for trajectory tracking control of a PMSM servo drive system. The proposed control structure employs neural observer (DRNN) and...
Long stator permanent magnet synchronous linear drives with passive, lightweight movers (vehicles) are proposed for material handling systems which require high dynamics. For high quality speed and position control of the vehicles, precise and fast position measurement is necessary. These passive vehicles present a restriction for the position acquisition system through the fact that neither energy...
This paper investigates the speed and parameter sensitivity of back-emf based sensorless techniques for PM machines. The eigenvalues of the sensorless system are speed dependent leading to performance degradation including reduced command tracking and disturbance rejection. The paper analyses the permanent magnet synchronous machine for both sensor- and sensorless-based torque and position/velocity...
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