Ih the sixth chapter, a new method is presented because of flux and torque ripples. The simulations show the validity of the new method.
在第六章中,由于磁链观测等的原因,不可避免磁链和转矩脉动,本章提出了一种新的方法,仿真结果表明新的方法能有效的减小磁链和转矩脉动。
参考来源 - 基于DSP的交流调速系统及仿真However, the waveforms of motor currents are difficult to control. The harmonic components of the current will produce torque pulsation, additional losses and some EMI problems.
电压源方式主回路比较简单,但电流波形难以控制,且谐波所带来的转矩脉动和损耗比较大,EMI问题难以解决。
参考来源 - 电流源型永磁电机控制方法仿真研究Firstly, the influence of the BLDC motor’s structure parameters on commutation torque ripple is studied. Using the flat width of the back-EMF as criterion, the gap field and winding structure’s influence on commutation torque ripple is analyzed quantitatively.
首先,本文研究了电机结构参数对换相转矩脉动的影响,以反电势波形平顶宽度作为衡量标准定量分析了气隙磁场及绕组结构对换相转矩的影响。
参考来源 - 永磁无刷直流电机换相转矩脉动抑制技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
但同时也带来了转矩脉动问题。
消除转矩脉动可以通过对定子电流加入谐波的方式完成。
A pulsating torque component can be compensated by inject a selected harmonic component to the phase current.
介绍用模糊自适应系统控制开关磁阻电机使转矩脉动减小的方法。
It is presented a method using fuzzy adaptive system to obtain torque ripple reduction in switched reluctance motor.
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