This paper states a detecting method for defect of three-phase current motor and it also introduces the experimental analysis result and practice utilization condition of this detecting method.
本文阐述了对三相交流电动机故障的一种检测方法，并介绍了该检测方法的实验分析及现场应用情况。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
Ways of balancing the phase current of an induction motor operating with unbalanced supply and fault diagnostics of the thyristors are discussed.
提出了在异步电动机供电不平衡的情况下平衡相间电流的方法，给出了晶闸管故障检测的方法。
On the basis of the mathematical model of AC induction motor in two phase axis system, the static measurement of electrical parameter for AC motor is completed using pulse voltage and pulse current.
根据交流感应电动机在两相静止坐标系上的数学模型，采用脉冲电流法、脉冲电压法实现了对交流电动机电气参数的静态测试。
To achieve the precision control of phase current or phase flux linkage in switched reluctance motor (SRM), the higher switching frequency of converter is required to increase dynamic response speed.
为了实现开关磁阻电机(SRM)绕组电流或磁链的精确控制，必须提高SR M功率变换器的工作频率以提高系统的动态响应速度。
It provides a method for the untouched switch Control for three - phase alternating current motor.
为大功率三相交流电机的无触点控制提供一种方法。
Phase current in motor stator is precisely detected by current detection circuit.
输出相检测电路准确的检测到电动机定子相电流。
This paper researches the testing requirement of voltage and current when relay closed or opened if the relay loaded AC single phase separate step motor.
本文研究交流单相异步电动机作为继电器负载时，继电器闭合与分断时电压与电流的试验条件。
Satellite attitude control flywheel is driven by three-phase alternate commutating brushless DC motor, schema of which is torque control model (current feedback).
卫星姿控飞轮是由三相轮流换向无刷直流电动机驱动的，采用力矩控制(电流反馈)模式。
Experiments show that the motor phase current controlled by this kind of SPWM inverter can be strictly sinusoidal and the running of the motor can remain steady for the ultra low speed range.
实验结果表明，这种SPWM逆变器控制的电机相电流严格正弦，能在超低速下平稳运行。
Using the incremental fuzzy control with self-adapting parameter, the phase current of the switch reluctance motor was optimized, and the constant torque control is implemented.
采用一种基于参数自调整的增量式模糊控制器，对电机相电流进行优化，从而实现恒转矩输出。
The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
The torque of switched reluctance motor is a highly non linear function depends on phase current and rotor position, so the torque ripple occurs.
开关磁阻电动机的转矩是各相电流与转子位置的高度非线性函数，这使得电动机的转矩容易出现脉动。
This paper deals with current-type two phase HB step motor systems, which having the resolution of five phase ones at the same time.
介绍电流型驱动的二相混合式步进电动机系统，它可同时具有与五相电动机一样的分辨率。
With the complexity of the control of multiphase machines, a novel control method was proposed in this paper, namely six-phase motor trapezoidal wave phase current control.
针对多相电机控制模式复杂性的特点，提出一种新颖的控制方式：即六相感应电机梯形波相电流控制。
Four kinds of common motor phase failure operation are analysed, and therefrom the current-voltage equal-ratio rule is derived and verified.
分析了四类常见的电动机断相运行，并由此推出和验证了断相运行状态下的电流—电压等比规律。
A novel control method is proposed in this paper, namely six-phase motor trapezoidal wave phase current control.
针对多相电机控制模式复杂性的特点，本文提出一种新颖的控制方式：六相感应电机梯形波相电流控制。
Under the actual operation lim its of motor voltage and current , a high-efficiency optimum torque control met hod for poly-phase PMSM is proposed.
在电动机实际工作的电压和电流约束条件下，提出了多相永磁电动机的一种最佳转矩控制方法，该方法能够使电动机在给定的控制电流下获得最大的输出转矩。
Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established.
建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；
The equipment will stop operation and give out alarm when there is motor phase or motor over-current.
电机缺相、过流设备会自动停止并报警。
When designing the step motor drive circuit of 5 phase 10 pat, 89c2051 is adopted as the Loop allotter. The VMOS is adopted in power elements. It is designed as chopper-type constant current circuit.
设计五相十拍步进电动机驱动电路时选择了89c 2051作为环形分配器，而功率器件选用电压型的VMOS管。
Further study of Circuit exchange regulator presents, takes the starting current as feedback signal to complete closed-loop control of soft start control of the three-phase induction motor.
对交流调压电路进行了进一步的研究，利用起动电流信号作为反馈量，对三相感应电动机软起动控制系统进行闭环控制。
The invention relates to a four-phase (8/6 pole) switch magnetic resistance motor control device of a single current sensor and a realized method thereof.
本发明涉及一种单电流传感器的四相（8/6极）开关磁阻电机控制装置及其实现 方法。
In the three-phase inverter-fed motor drives, the switching devices'PWM waves generate shaft voltage and bearing current, and these make the motor's life shorter.
在三相逆变器驱动电机系统中，开关器件的PWM波导致了轴电压和轴承电流的产生，使电机受到危害，降低了电机的使用寿命。
The bipolar two-phase hybrid stepping motor integrated with chip L6217A was mainly used in this drive circuit to realize the ability of current subdivision.
该驱动电路主要应用双极性两相混合式步进电机驱动集成芯片L 6217a，来实现电流细分功能。
The magnitude comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
This paper analyzed theory of micro-step driving taking 2-phase hybrid stepping motor for example under ideal circumstances, and inferred wind electric current in the circumstances above-mentioned.
以两相混合式步进电动机为例对理想条件下的微步驱动电流波形进行了分析，推导了此时的绕组电流。
The standard is applicable to stator coil and winding insulation alternative and direct current voltage withstanding test for AC generator, synchronous phase modifier and AC motor.
本标准适用于交流发电机、同步调相机和交流电动机定子线圈及绕组绝缘交、直流耐电压试验。
The standard is applicable to stator coil and winding insulation alternative and direct current voltage withstanding test for AC generator, synchronous phase modifier and AC motor.
本标准适用于交流发电机、同步调相机和交流电动机定子线圈及绕组绝缘交、直流耐电压试验。
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