The experiment illustrates that operation frequency, torque-frequency characteristics, efficiency etc. of the driving unit is superior to the same one.
试验证明，该驱动电源的运行频率、矩频特性、效率等明显优于同类产品。
The mathematical model of stepper motors maximum operating frequency is established based on the analysis of stepper motors torque-frequency characteristic and systemic motion equation.
通过对步进电动机矩频特性及其运动方程序的分析，建立了步进电动机最高运行频率的数学模型，即最高运行频率为最大静转矩和负载转矩的函数。
The paper presents a practical calculating method for running torque-frequency characteristics of a hybrid stepping motor, considering magnetic saturation and analyzing the nonlinear parameters.
本文从非线性参数的分析出发，考虑电机的磁饱和因素，而提出一种混合式步进电动机运行矩频特性的实用计算方法。
First of all, if you increase the torque, the upstairs, then it says that the precession frequency will increase.
首先，如果力变大了，上面，说旋进的频率，也会上升。
In this paper a new torque controller with fixed switching frequency is proposed.
文中提出了一种新型的开关频率固定的转矩控制器。
It features in low torque ripple, low flux ripple and fixed switching frequency.
它具有开关频率恒定，转矩和磁链波动小等特点。
Maintenance-free brushless drive motor with frequency inversion, has high start torque and short acceleration time.
免维护高力矩无刷变频电机直接驱动，启动力矩大、加速时间短。
Direct Torque Control (DTC) of induction motor based on DSP is new technology of high performance AC — frequency conversion — rate of regulation.
基于DSP的电动汽车用交流电机的直接转矩控制是电机高性能交流变频调速的新技术之一。
The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
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。
This paper investigates mainly frequency characteristic and error analysis, evaluates the performances of the torque current generator according to experimental results.
本文主要研究力矩电流产生器的频率特性和误差分析，同时根据实验结果评价了它的性能。
Finally, the torsion vibration nature frequency and torque amplitude factor of a rolling mill are calculated by using finite element method.
最后使用有限元法计算了某钢厂冷轧机主传动轴系的扭振固有频率和转矩放大系数。
The Pulse Generators PGs are equipped to detect the rotor frequency of induction traction motors for the torque control in railway vehicle traction field.
铁道机车车辆牵引领域中的转矩控制是利用脉冲发生器（PG）来检测牵引感应电动机的转子频率。
The expression and frequency variety law of the rotor broken bar fault feature component in the startup electromagnetic torque signal are analyzed in detail.
分析了转子断条故障特征在电机启动电磁转矩信号中的表现形式及频率变化规律。
Frequency of this pulsating torque is six times as high as that of the fundamental current.
这种脉动转矩的频率为基波电流频率的六倍。
The system's global characters are obtained under different input torque fluctuation, backlash, composite transmission error, exciting frequency and damping ratio.
得到了系统在不同的输入转矩波动、齿侧间隙、齿轮综合误差、激励频率和阻尼比参数下系统的全局特性。
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.
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。
Keeping slip frequency constant we can get nearly constant torque output characteristic.
维持滑差频率不变，就可获得近似于恒定转矩的输出特性。
A mathematical model of the electrostatic torque was used to analyze the relationship between the torque and the system frequency response.
该文建立了静电力矩的数学模型，确定了支承系统频率特性与静电力矩大小之间的关系。
We usually take the coefficient 1.25 times the average torque as the low frequency maximum torque to calculate the low frequency braking voltage.
矿井提升绞车在计算低频制动电压时，通常采用低频最大力矩是平均力矩1.25倍的折算系数。
At the same time, the automatic energy-saving mode frequency converter LG, can make the motor in the meet load torque requirements to minimum current operation, to reach better energy saving effect.
同时，LG变频器的自动节能模式，可使电机在满足负载转矩要求下以最小电流运行，达到更好的节电效果。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
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。
This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation, at the same time the results are given.
本文对双极性调制的无刷直流电动机仿真分析了转速和调制频率对转矩影响同时给出仿真结果。
Frequency of torque signal is consistent with that of force vibration. Amplitudes of radial pulsation signal increases as tapping continues.
扭矩信号的频率与外加振动频率相一致，径向跳动信号随攻丝过程的持续进行逐渐变大。
Brushless frequency motor for model DDL5M and Brushless DC motor for DDL5 which in great torque, free maintenance, no powder pollution, quick in speed up and down.
DDL5M采用无刷变频电机；ddl5采用无刷直流电机。无粉尘，免维护，力矩大，升降速度快。
They think: reduce tapping torque and axial force of the best frequency because the terms vary.
他们认为：降低攻丝扭矩和轴向力的最佳频率因条件而异。
Brushless frequency motor for model TGL16M and Brushless DC motor for TGL16 which in great torque, free maintenance, no powder pollution, quick in speed up and down.
TGL16 M采用无碳刷变频电机，TGL16采用无碳刷直流电机，免维护，大力矩，升降速快。
The rotation speed is filtered by a frequency which is defined based on a combustion frequency of the engine (10) to obtain a value corresponding to a current torque.
借助根据发动机(10)的燃烧频率所限定出的频率来过滤旋转速度，以得到与目前转矩相对应的值。
Fixed switching frequency and low torque ripple are obtained using space vector modulation.
使用空间矢量调制固定开关频率和低转矩脉动。
Brushless frequency motor which in great torque, free maintenance, no powder pollution, quick in speed up and down.
采用无刷直流变频电机，无粉尘，免维护，力矩大，升降速度快。
Brushless frequency motor which in great torque, free maintenance, no powder pollution, quick in speed up and down.
采用无碳刷大力矩变频电机，免维护，无粉尘污染，升降速快。
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