单相电动机运转时，产生与运转方向逆方向的转矩，因此不可能在短时间内改变方向。
The single-phase motor has a reverse direction with the totating's when operated.
以下是我对你的第一个机器人电动机的建议： 电压：5V-8V 转矩：是你设计需要的2倍
实验证明，该系统能够较好地测定感应电动机的转矩-转速特性。
Experimental result shows that the system can measure well torque-speed characteristic of induction motor.
无刷直流电动机在高性能驱动应用中具有良好的调整性能、高电压、高转矩、高体积比以及无电刷的优点。
Brushless direct current motors and have advantages of good adjustment performance, high voltage, high torque, high volumes ratio in high performance drive.
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，该文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 at a low speed, this paper proposes a new control strategy.
对于电动机起动需要控制起动电流和转矩震动的问题，采用双闭环的控制方案，即电流闭环控制和功率因数角闭环控制。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
分析了电动机在双绕组工作与单绕组工作时的机械特性、铜损耗与允许转矩。
The mechanical characteristic, power losses and allowed torque of the motor were analyzed at two cases of normal and fault-tolerance operation modes.
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.
通过改变转子的位置计算永磁同步电动机的静态转矩和电抗，给出了转矩和电抗随转子位置变化规律的曲线。
The torque and reactance is calculated by changing the position of rotor and the changing curves of torque and reactance is also provided.
电能供给电动机绕组和磁场，产生电磁感应作用，试电动机产生机械能或者转矩。
Motors have electrical energy supplied to their windings and a magnetic field that develops an electromagnetic interaction to produce mechanical energy or torque.
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.
电源电压从0～100V变化时，电动机的电磁转矩逐渐增大，但增大率逐渐降低。
When the voltage of power source changes from 0 to 100V, the electromagnetic moment of motor gradually increases, but its increasing rate decreases gradually.
当电源电压增至72V以后，电动机的电磁转矩增大率降至很小。
After the voltage of power source increases to 72v, the increasing rate of the electromagnetic moment of motor is very small.
实验结果表明，以“被测试电机-直流电力测功机-负载电阻”为结构、基于数字信号处理芯片的感应电动机转矩-转速特性自动测试系统是可行的。
The experimental results demonstrate: the automatic measurement system which bases on the DC dynamometer and DSP can well measure torque-speed characteristic of induction motor.
认为以满足螺旋桨额定推力为目的，推进电动机只需要低速输出额定转矩来实现，即输出功率较低。
In order to satisfy the operation requirement of the rated thrust of the propeller, the propulsion motor performs only in rated torque on the low speed, so the motor power is low.
因此脉动转矩对电动机起动影响很小。
Therefore, Pulsating torque has very little effect on the starting of motor.
控制电动机的转矩和转速，将电能转换成机械能，实现机械的旋转运动或反复运动。
By control the electric motor's torque and rotational speed, electric energy will be changed into mechanical energy, then mechanical rotary motion and repeated movement are realized.
分析了将直接转矩控制策略应用于电动机的四象限运行的具体实现方式。
Analysis the realization of the direct torque control used in asynchronous motor's four-quadrant operation.
主要讨论了正弦波直流无刷电动机转矩纹波最小化问题。
This paper addresses the problem of torque ripple minimization in permanent magnet synchronous motors (PMSM).
摘要抽油机中载荷变化大，易引起电动机转速和转矩的波动。
This paper mainly focuses on the fluctuation of velocity and torque of the electromotor because of the variational load in the pumping unit equipment.
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。
The torque of switched reluctance motor is a highly non linear function depends on phase current and rotor position, so the torque ripple occurs.
本文给出一种新型，高转矩VR步进电动机——双定子VR步进电动机的设计。该电机可用于机器人的直接驱动。
This paper gives the design of a new type, high torque VR step motor-dual stator VR step motor which can be used to drive robots directly.
步进电动机象同步电动机一样，在负载转矩的作用下，转子磁极中心线将滞后于气隙磁场的中心线一个角度，称为失调角。
Like synchronous motor, rotor magnetic pole center line could lagged behind an Angle of that of air-gap magnetic field under the function of load torque (called angular displacement).
本文在研究开关磁阻电动机的转矩特点，对比分析各种转矩模型和转矩分配函数的基础上，建立了动态转矩模型。
Based on an analysis of the torque characteristic of switched reluctance motor and a comparison of torque models and phase torque distribution laws, this paper sets up a dynamic torque model.
当旋转磁场电机用作拖动电动机时，转矩的产生和控制就需要得到特殊的考虑。
When rotating-field machines are employed as drive motors, the question of torque generation and control requires special consideration.
介绍了异步电动机直接转矩控制系统中状态选择器的一种新型设计方法—神经网络设计方法。
A new design method of state selector in asynchronous machines direct torque control system-neural networks design method is introduced.
介绍了外转子永磁电动机结构及其特点，并应用高性能电动机控制DSP，设计了电动机的矢量控制系统，电动机转矩和控制性能良好。
The structure and characteristics of the PM motor of outer-rotor were introduced, and the space vector control system was designed, using the high performance DSP.
介绍了外转子永磁电动机结构及其特点，并应用高性能电动机控制DSP，设计了电动机的矢量控制系统，电动机转矩和控制性能良好。
The structure and characteristics of the PM motor of outer-rotor were introduced, and the space vector control system was designed, using the high performance DSP.
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