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METHOD AND DEVICE FOR DETERMINING THE POSITION ANGLE OF A ROTOR IN AN ELECTRIC SYNCHRONOUS MACHINE
METHOD AND DEVICE FOR DETERMINING THE POSITION ANGLE OF A ROTOR IN AN ELECTRIC SYNCHRONOUS MACHINE
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机译:用于确定电动同步电机中转子位置角的方法和装置
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摘要
The invention relates to a method and device for determining the position angle of a rotor (2) in an electric synchronous machine (1). The device is designed to comprise: a voltage generator (12) for generating electrical voltage pulses at angles in a coordinate system fixed in respect of the stator when the rotor (2) is stationary; a measuring device (14) for measuring any electrical current value returning to the electrical voltage pulses generated by the voltage generator (12); and a computing device (16), which is designed: —to store a current signal curve of the current values measured; —to generate a zero-mean current signal curve by shifting the current signal curve or the measured current values; —to compute an integral function (83) of the zero-mean current signal curve; and—to determine the position angle of the rotor (2) on the basis of the computed integral function (83).
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