反电动势的 meaning in Chinese
counter-electromotive
Examples
- The ideal bemf waveform of bldcm is trapezoid with 120 ! platform width . in the 120 conduction mode , the stator current is not ideal due to the stator inductance , and the torque ripple occurs
理想的永磁无刷直流电动机的反电动势的波形是120平顶的梯形波，在三相六状态120导通方式控制下，电流由于电机定子电感的存在而不是理想方波，因此产生了换相转矩脉动。 - The non - ideal bemf waveform of bldcm is often caused by two facts . one is that the platform width of bemf waveform is less than 120 ; the other is the cogging harmonics existed in the bemf waveform
非理想反电动势波形的无刷直流电机有两种情况，一种是反电动势的梯形波的平顶宽度小于120 ；一种是由于磁场分布受齿槽的影响，反电动势存在齿谐波，使其波形发生畸变。 - To implement this method , the structures of both the hardware and the software are analyzed in detail . the simulation and the experimental results show that this control technique can effectively minimize the torque ripple caused by distortion of the back - emf
阐述了实现这种方法的软、硬件结构，仿真研究和实验结果表明这种控制策略可以有效地抑制由于反电动势的偏差所产生的电磁转矩脉动。 - At first , the dissertation analyses the principles , the operation theory and the control techniques of bldcm ( brushless dc motor ) . then according to the different bemf of different bldc motor , the dissertation analyses the torque ripple in the bldcm with ideal 120 掳 trapezoidal waveform bemf and non - ideal bemf waveform respectively . further more the dissertation presents different novel control techniques of the torque ripple minimization in bldcm
首先，对永磁无刷直流电机的定义，工作原理，控制方法进行了分析，然后根据永磁无刷直流电机的反电动势波形的不同，对理想方波型无刷直流电动机的换相转矩脉动，非理想方波反电动势的无刷直流电动机的换相转矩脉动进行了详细的分析，并分别提出了不同的控制策略，对其换相转矩脉动进行抑制。 - Furthermore , this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor , torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode , 180 conduction mode and self - synchronous svpwm mode respectively . the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles
对准正弦波反电动势无刷直流电动机在120导通方式、 180导通方式和自同步svpwm三种控制方式下的转矩脉动系数、转矩电流比等方面进行了全面的分析与比较，仿真研究和实验结果表明，当反电动势的平顶宽度小于107电角时，采用自同步svpwm控制方法可以在不损失转矩电流比的基础上，更有效地抑制电磁转矩脉动。