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.
最大换相频率超出。
在特高压直流输电中换相失败也是主要的故障。
Commutation failure is one of the most common failures for the high voltage direct current transmission system.
换相电抗是高压直流输电系统中的一项重要技术参数。
Commutated reactance is an important parameter in HVDC transmission system.
本文介绍了用单层绕组和换相法设计远极比变极电机的方法。
The paper presents a method to design wide-ratio pole-changing motor by using single-layer winding and phase changing.
为了抑制电流换相期间的浪涌电压，逆变器采用最佳相角控制。
The inverter uses opetimal phase angle control scheme to suppress the surge voltage during the commutation of current.
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.
为了提高相控阵天线的检测效率，本文采用了相控阵天线换相测量法。
In order to improve the test efficiency of phased array antennas, phase-shift measurement method is adopted in this paper.
本文还从技术及经济角度出发给出了几点电容换相换流器数值选取的建议。
Moreover, several recommendations on the selection of commutated capacitor's size were presented considering the technological and commercial factors.
针对这个问题，分别采用传统的重叠换相和提出的动态换相技术进行研究。
Classical overlapping commutation and novel dynamic commutation technique were both used to solve this question separated.
重点分析了影响换相失败的各个因素之间的关系以及对换相失败的影响程度。
The emphases is on analyzing the relationship of the factors and the degree of impact on commutation failure.
直流电弧炉用整流变压器漏抗值设计较一般电力变压器大，整流器换相时间延长。
Because leakage inductance value of rectiformer used in DC EAF is larger than common power transformer, the rectifier has longer commutation time.
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.
旨在说明直流无刷电机控制器对电动机转速控制以及换相控制的实现方法和技术优势。
The main purpose is to illustrate the solution and technology advantages of DC brushless controller, in account of rotational speed control and phasing rotation control function.
OTC有关产品把同步点设计在自然换相点上，使同步移相触发和电源输出更趋稳定可靠。
To set up a sync point coincide with a natural commutation point in OTC products, and will be able to improve reliability and stability of the phase shifting trigger and output of the power source.
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.
对绕组换相时电流波动进行了分析，并计算了电机电磁转矩，给出了抑制电磁转矩脉动的方法。
Current fluctuation is analyzed during coil commutation time and electromagnetic torque is computed and method is given to restrain ripple of electromagnetic torque.
文章还分析了再生制动时主变流器的换相过程，并对跳弓拉弧时引起再生颠覆的原因也作了说明。
The main converter commutation process due to regenerative braking is also analyzed, and reasons of regenerative overturn caused by pantograph ju…
永磁无刷伺服电机的换相和控制都需要准确的转子位置信息，然而位置传感器有其难以克服的缺点。
The exact rotor position is required while a permanent magnet brushless servo motor (PMBSM) is under commutation and control. Howere, position sensors have some fatal defects.
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.
详细讨论了基于DSP技术的霍尔位置信号检测原理和换相控制原理，并分析了单电阻电流检测方法。
The theory of hall signal checking and how to change phase using DSP technology are discussed in detail and analyzed the method of using a single resistance measure phase current.
虽然无刷直流电机具有良好的启动和调速性能，但是由于换相以及电枢反应等因素，它属于非线性系统。
The brushless DC motor has excellent characteristics of good start and timing performance, but it is a nonlinear system owing to commutation process and armature reaction.
在本文的计算过程中考虑了在交流励磁系统中存在着电枢反应和整流换相压降，故使计算结果更加真实可靠。
The armature response existed in AC exciting system and changing-phase voltage during the rectification are considered in the thesis, so the result is more reliable.
通过将换相失败的原理与实际的试验现象相结合，分析了整个事故原因，并对事故解决方法进行了描述和解释。
Combining the principle of commutation fault with real test phenomena, the reasons of the whole incident are analyzed, and the method to deal with this accident is described and explained.
所设计的无刷直流电机稳速控制系统用电机控制专用芯片ML4428实现了反电势的检测、换相和功率驱动；
Using the motor control special chip ML4428, the counter electromotive force detection and back-EMF commutation were realized.
在风电场混合并网系统中，通过电压源换相高压直流输电可以控制系统中的无功功率、抑制并网公共点的电压波动。
In interconnected hybrid wind farm system, the voltage fluctuation can be alleviated and the reactive power can be controlled by voltage source converter.
在风电场混合并网系统中，通过电压源换相高压直流输电可以控制系统中的无功功率、抑制并网公共点的电压波动。
In interconnected hybrid wind farm system, the voltage fluctuation can be alleviated and the reactive power can be controlled by voltage source converter.
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