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This paper proposes a novel adaptive feedforward control strategy based on the parameters identification of a permanent magnent linear synchronous motor (PMLSM). The parameters such as the moving mass and viscous coefficient of a PMLSM are identified through an unbiased least square estimation approach with the employment of current and position signals from the built-in sensors. Based on the identified...
To meet the omnidirectional and high gain requirements of wireless local area networks (WLAN) communication systems, a centrally probe-fed cylindrical dielectric resonator antenna (DRA) with a cone ground is proposed. Generally, most of the DRA is set on a metallic ground plane with a suitable size. However, the maximum radiation direction may deviate from the intended horizontal direction and the...
This paper presents the following two methods based on torque sensor feedback: new position sensorless control method for surface-mounted permanent magnet synchronous machines (SPMSMs) and torque ripple compensation. The position sensorless techniques can be classified into two categories: the techniques based on the back electromotive force (back-EMF) and the techniques based on the high frequency...
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