Xinxiu Zhou

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Existing methods of compensation of commutation instants are generally developed based on the assumption that the back electromotive force (EMF) is trapezoidal wave and the three-phase windings are symmetrical. But this is not the fact. The actual back EMF waveform and commutation ripple would make the conventional methods disabled. According to the actual(More)
The goal of this project was to design a quadcopter which is used for System identification. The surveillance operator uses a sophisticated electronic equipment to find, sort and identify within a defined region. Here, the Quadcopter is designed with rotors and an Arduino processor for system identification. The required information from the quadcopter is(More)
In this paper, a nonlinear speed control scheme which combines nonlinear optimal controller, nonlinear disturbance observer and adaptive kalman filter is proposed for Magnetically Suspend Flywheel (MSFW). Firstly, in order to improve the dynamic and steady-stage performances of motor driving system, the state feedback exact linearization model of BUCK(More)
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