但同时也带来了转矩脉动问题。
软件设计中采用了换相转矩脉动抑制方法。
In software, the method of reducing commutation torque pulsation is brought into effect.
他们也应用于无波动或最小转矩脉动领域。
They are also preferred in applications where no cogging and minimal torque ripple is important.
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.
本文的研究工作对方波无刷直流电机转矩脉动抑制有积极意义。
The research have positive meaning for the torque ripple control technology utilized in BLDCM.
在永磁无刷直流电机中，转矩脉动是需要解决的主要问题之一。
To permanent magnetic brushless direct current motors, torque tipple is one of the major problems to be solved.
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.
因此，对无刷直流电动机的应用，必须考虑其转矩脉动的抑制问题。
So the compensation of pulsating torque is very importance for the application of PMSMs.
事实证明它能很容易的控制电机的转矩和转速，并能减小转矩脉动。
It has been shown to provide a simple solution to control the torque and the speed of the motor and to minimize torque ripple.
介绍了人工心脏轴流式血泵永磁无刷直流电机换相转矩脉动变化过程。
This paper introduces Commutation torque ripple process of the axial blood pump of an artificial heart brushless DC motor.
本文的主要研究目标就是采用新的控制策略来抑制永磁无刷直流电机转矩脉动。
The objective of this dissertation is to minimize the torque ripple of BLDC motor.
抑制转矩脉动是永磁无刷电机研究重点，国内外专家学者提出了诸多解决方法。
Torque ripple suppression was the research focus of permanent magnet brushless motor, domestic and foreign experts and scholars had proposed lots of solutions for the problem.
传统的直接转矩控制存在着转矩脉动大，低速性能差、开关频率不固定等问题。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
仿真和实验结果证明，系统整体设计合理，降低了转矩脉动，改善了系统的性能。
Simulation and experimental results prove that the prototype design of the system is reasonable, and the torque ripple can be reduced, and the system's performance can be improved.
主要对永磁无刷直流电动机换相过程进行理论分析，得到引起换相转矩脉动的原因。
The cause of producing the commutation torque ripple was mainly found by means of analyzing the commutation process of permanent magnet brushless DC motor in theory.
结果表明提出的控制器可以保持开关频率恒定，并降低了转矩脉动，尤其在低速时。
The results indicate that the proposed controller is capable of maintaining the torque switching frequency constant and reducing the torque ripple, particularly at low speed.
对这两种方法以转矩脉动量为标准做了对比，指出折角调制方法是一种更好的方法。
Comparison of torque pulse quantities between the two method leads to the conclusion that the corner folding modulation is a better choice.
以空间矢量调制方法来获得逆变器的开关信号，实现了小的转矩脉动和恒定的开关频率。
The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
结果表明，死区效应引起了逆变器输出电压波形畸变，引起了电机电流波形畸变和转矩脉动。
The results indicate that the dead time effect distorts inverter output voltage and current waveform and increases torque ripples of the motor.
分析了永磁无刷直流电机换相原理，提出了一种换相电流预测控制方法以抑制换相转矩脉动。
A commutation current prediction control scheme was proposed in brushless DC motor (BLDCM) to suppress the commutation torque ripples.
采用离散占空比控制技术的直接转矩控制能够在减小输出转矩脉动的同时保持算法简单的特性。
Applying discrete duty ratio control technology into direct torque control can reduce the ripple, and keep the feature of simplicity.
针对基于直接转矩控制的感应电动机在低速运转时存在较大的转矩脉动问题，提出一种新的控制方法。
Due to the large torque ripple of inductance motor based on direct torque control, especially in a low speed, this paper proposes a new control strategy.
同时，着重对电流换相时所引起的转矩脉动进行了研究，发现采用重叠换相技术可减小这种转矩脉动。
At the same time torque pulsation in circuit commutation is analyzed and researched chiefly, and overlapping commutation technology is offered in order to reduce this torque pulsation.
针对平均转矩控制的开关磁阻电动机(SRM)转矩脉动大的问题，提出了一种瞬时转矩控制的方案。
To overcome the disadvantage of higher torque ripple in switched reluctance motor (SRM) based on average torque control technique, one method of instantaneous torque control is presented.
针对液压伺服马达的参数不确定性以及负载转矩脉动等问题，提出了一种鲁棒转速控制器的设计方法。
A design method of a robust rotational velocity controller of water hydraulic servomotor was presented for the uncertain parameters and the load fluctuation.
分析和实验证明，该拓扑能够简单、有效的检测出电机的力矩电流，对抑制电机转矩脉动具有重要意义。
Analysis and experiment show that the topology can detect motor's torque current simply and effectively and has magnificent significance to reduce torque ripple of motor.
仿真结果表明，与传统的弱磁方法相比，该方法最大的优点是能够提高弱磁调速范围，减少了转矩脉动。
Simulation results show that the overall of this method is the enhancement of field-weakening performance of drive and a reduction in torque ripple compared the conventional method.
但是无刷直流电动机运行中存在转矩脉动问题，对实现更精确的位置和更高性能的速度控制有极大影响。
But it has the disadvantages of torque pulsation, it can't achieve accurate position and speed of higher performance.
但是无刷直流电动机运行中存在转矩脉动问题，对实现更精确的位置和更高性能的速度控制有极大影响。
But it has the disadvantages of torque pulsation, it can't achieve accurate position and speed of higher performance.
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