1) current back-emf
反电势电流
1.
Based on the mathematical models of six-phase BLDCM established in this paper,a detailed analysis on the current back-emf of inactive phase caused by PWM_ON mode adopted in six-phase BLDCM,and result in the torque ripple of the inactive phase are given.
本文在建立六相永磁无刷直流电机的数学模型的基础上,详细分析了六相无刷直流电机在PWM_ON调制方式下的非换相期间关断相反电势电流的产生过程和反电势电流的产生对电磁转矩的影响。
2) counter electromotive force inverter
反电动势变流器
3) 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.
Back electromotive force was measured by continuous pulse-computer and the influencing factors for back electromotive force and current efficiency were studied in detail.
研究了在SrCl2-SrF2-BaF2的电解质体系中熔盐电解法制备高浓度Al-Sr合金,采用连续脉冲-计算机法测定电解过程的反电动势并且对反电动势和电流效率的影响因素进行了详细的研究。
3.
This method directly extracts the true back electromotive force(EMF) zero-crossing point by detecting the voltage difference between the floating phase terminal and the midpoint in the DC link.
为了实现无刷直流电机的无位置传感器控制,提出了一种新颖的转子位置信号检测方法,该方法通过比较逆变器直流环中点电压和电机断开相绕组端电压的关系,直接检测到断开相绕组反电动势的过零点,再将该过零点延迟30°电角度即可获得无刷直流电机绕组换相所必须的转子位置信号。
4) back EMF
反电动势
1.
A Novel Scheme of Sensing Rotor Position of BLDCM Based on the Zero-Crossing of Back EMF
反电动势过零检测无刷直流电机转子位置新方法
2.
The back EMF in the process of electrolysis is measured by continuous pulse-oscillograph.
SrCO_3为原料熔盐电解法生产Al-Sr合金新工艺, 采用连续脉冲-示波器法测定电解过程的反电动势。
3.
When the transited current arrives at a certain extent, cell voltage and back EMF will be increased gradually with increasi.
在讨论铝钪合金各种生产方法的基础上 ,研究了熔盐电解法生产Al Sc合金的工艺条件·结果发现 ,随着电流密度的增加 ,合金中钪的质量分数逐渐增加 ,最高可达 1 5 % ;但随分子比的升高 ,Sc的质量分数却有所下降·当通过的电流一定时 ,随着电解过程的延长 ,槽电压和反电动势逐渐升
5) Back EMF
反电势
1.
Many categories of sensorless control techniques have been developed in the last two decades,whilst the most popular category is that based on back EMFs.
文章对基于反电势的无传感器控制方法作一综合介绍和比较。
2.
The superposition principle doesn t apply to estimate the effect of the armature reaction on the gap magnetic field and the back EMF.
本文分析了永磁无刷直流电动机的电枢反应及其对气隙磁场和反电势的影响,指出叠加原理在分析反电势时已不再适用;通过磁场数值分析及实验对比,发现电枢反应使气隙磁场发生的畸变会导致磁路局部饱和,它是影响电机性能的主要因素,并由此提出了在设计中抑制电枢反应q轴分量影响的方法。
6) back-EMF
反电势
1.
Improved Back-EMF Method of Sensorless BLDC Motor;
一种改进的无刷直流电动机转子位置反电势检测方法
2.
In this paper,a model of estimating the rotor s position and velocity is proposed and used to detect back-EMF of non-conducted phase of BLDCM through Extended Kalman Filter.
从介绍扩展卡尔曼滤波算法原理入手,建立了以不导通相反电势为基础的无位置传感器无刷直流电机的状态观测模型,估算出电机转子位置和速度,最后对模型进行了仿真并给出了仿真结果。
3.
In this paper, a method of back-EMF logic commutation for brusheless DC motor is presented.
提出了一种无位置传感器无刷直流电机的反电势逻辑换相方法,并介绍了其软硬件设计及实验结果。
补充资料：反电动势
电路中存在的跟外加电压方向相反的电动势。如电动机转动时，电枢线圈中所产生的与外加电压方向相反的感应电动势。电解槽在工作时也存在反电动势，对电解槽所加电压必须大于其反电动势才能使电解槽正常工作。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条