A non-invasive system for accurately determining the counter EMF or speed voltages in an electric motor during motor operation. The system includes a mechanism for determining the phase angle of the stator current within the dq frame of reference and a mechanism for transforming feedback voltages ...
美 英 un.反电动势 网络反电势 英汉 网络释义 un. 1. 反电动势 例句
The frequency of the current ripple in the DC motor caused by its counter-EMF is analyzed. It is proved that this frequency is determined not only by its rotation speed,but also by the number of windings in series,the number of pole-pairs,and the number of parallel paths in which current...
Back electromotive force is a voltage that occurs in electric motors where there is relative motion between the armature of the motor and the external magnetic field. One practical application is to use this phenomenon to indirectly measure motor speed and position. Counter emf is a voltage ...
e: Voltage generated in the motor terminals (counter-electromotive force) [V] KE: Back-emf constant [Vs/rad] ω: Rotating speed [rad/s] When you measure this relationship on an actual motor, it will form a clean straight line as shown inFig. 2.8. ...
Deduced the expression of the motor no-load EMF and thrust, to provide a theoretical basis for the follow-up motor design and optimization 翻译结果2复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 翻译结果3复制译文编辑译文朗读译文返回顶部 Deduce the motor no-load counter electromotive force an...
threshold, for example due to stored voltage in case the load is a battery, secondary cell, or capacitor, or due to counter EMF generated by the load in case the load is a DC motor, thereby reducing the power supply output voltage to compensate for the detected increase in terminal ...
Circuit for detecting back-emf, apparatus and method for motor driving control using the same The present invention relates to a counter-electromotive force detection circuit and a drive control device, the motor drive control method using the same motor, the motor drive control device according to...
4) counter emf controller 反电动势控制器5) counter electromotive force inverter 反电动势变流器6) back electromotive force 反电动势 1. Calculation and simulation of back electromotive force and cogging torque for permanent magnet BLDC motor; 永磁无刷直流电动机反电动势及定位力矩的计算与仿真 2....
The generator may be near and around the shaft, or alternatively in the cylindrical housing (column 7, lines 24-26). The instant invention is distinguishable in that magnet rings are coupled to the counter rotating turbine blades generating emf through the stators, both rotors and stators are...