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To meet the requirements of super-high speed, fast response and high efficiency, faced with problems occurring in active charging and discharging situation of Electro-Mechanical Battery(EMB), control system is divided into three parts to be researchfully overviewed. The main content includes: Research status on position sensorless EMB control system, on phase voltage compensation and current information...
In order to detect the initial rotor position of sensorless brushless DC motor in stationary condition, this paper applied the high-frequency signal injection. Utilizing the motor saliency effects, this method worked out the initial rotor position via detecting the different current response of the three phase caused by high-frequency signal injection. This method made up the defect of conventional...
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