无负载转速是电动机设计过程中的一个重要参数。
No - load speed is one of important parameters in ultrasonic motors design.
针对系统的鲁棒稳定性、稳态精度以及抗干扰能力，进行了变负载、变电机转速实验。
And aiming at robust stability, steady state accuracy and capability of anti-jamming, we take the experiments of the variable speed and load.
控制系统的功能是在负载随时变化的工况下，确保机组转速恒定，并使电压输出控制在要求范围之内。
The control system functions to keep speed of the machines substantially constant and the voltage within prescribed limits, even the load may change.
负载控制加载器，模拟实际工况。也能通过变频器控制电机输出转速。
Loader was controlled with loading, and actual working state was simulated, the motor rev was controlled through transducer.
为了可靠运行，必须降低转速的波动，即必须有效抑制负载转矩脉动和电机电磁转矩脉动带来的转速波动。
In order to have a reliable operation, must reduce the speed fluctuation, namely must effectively restrain the load torque ripple and motor electromagnetic torque ripple of speed fluctuation bring.
状态观测器可以利用较低精度的位置传感器来准确观测负载转矩、转子位置和转速。
The state observer observes the precise load torque, rotor position and speed with only a low accuracy position sensor.
高扭矩低转速的水平，从而提高其能力在重负载下运行，没有拖延。
High torque at low RPM levels which improves its ability to operate under heavy loads without stalling.
同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
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.
泵控容积调速系统中负载发生变化时，要保证马达输出转速恒定。
When the load of pump control cubage timing system changes, the motor output speed must be kept steady.
本文设计的发电机检测系统由转速驱动和控制单元，数据采集单元，可程控的负载，初始励磁电源以及应用测试软件组成。
The system is composed of rotate drive and control unit, data acquisition unit, program control load, initial excitation source and measure-control program.
在给定自激电容、转速和负载的情况下，通过计算激磁电抗与输出频率，进而得到外特性。
Under the values of given self-excited capacitors, rotor speeds and loads, the external characteristics are obtained by calculating the magnetizing reactance and frequency.
实际转速将随负载大小变化而比所示数值减少2- 20%左右。
Actual speed will vary the size of the load changes in less than the values shown in 2-20%.
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.
转矩和转速的测试与负载有直接关系。
And the measurement of torque and rotate speed is directly related to load.
负载压力波动、加载转矩和转速的波动，主要影响系统的稳态性能。
While the load pressure fluctuation, the load torque fluctuation and the rotational speed fluctuation mainly affect the steady performance of the system.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
通过负载扰动观测，依据系统结构不变性原理实时补偿变量马达摆角，实现系统的转速控制。
The variable motor swing Angle is real-timely compensated according to the structural invariability for speed control, through the load vibration observer.
普通永磁同步发电机由于励磁不可调，端电压随转速或负载变化而变化，影响了供电品质。
The terminal voltage of a common permanent-magnet generator varies with its rotating speed and load due to its constant permanent-magnet flux, which resulting in unstable quality of power supply.
该装置的柴油机及燃气轮机功率、转速及负载转换控制、自动同步离合器的动态性能指标等是影响舰船机动性和操纵性的重要因素。
The dynamic performance of Synchronous-Self-Shifting clutch is of great importance to the control on transmission of power, rotation speed and load.
由于直驱式风力发电机转速较低，定子绕组需要有较多的匝数以输出足够高的电压，因而绕组负载电流的去磁反应较大；
More turns of winding is needed to produce enough voltage because the DPMG rotates at low speed, but the armature reaction is high at same time.
用迭代的方法计算出发电机负载不同转速时的输出电流。
The output current of the alternator at different speed is computed by an iteration method.
分析了汽车发电机抛负载电压的形成过程及其与发电机的相电动势、激磁电流和转速之间的关系。
This paper analyzes the forming process of unloading voltage and the relations among unloading voltage, phase electromotive force, exciting current and rotational speed in art alternator.
电子控制电机的转速，不同负载下保持一致的结果。
Motor speed is controlled electronically to maintain consistent results under varying loads.
同时讨论了电源合闸角、转子初始相角、磁链和负载转矩对电机转速和旋转方向的影响。
Influences on the speed and direction of the rotation by the phase Angle of the supply voltage, initial Angle of rotor position, PM line flux and the load torque are discussed.
随着转速和负载的变化，此阀频繁地动作。
With the changes of the rotational speed and load, this valve moves frequently.
根据三相异步电动机损耗及节能原理，研究异步电动机端电压与负载大小之间的关系：电压将受负载对转速要求的制约。
According to wear and energy-saving principle of three-phase asynchronous motor, relations between pressure of motor and load are researched herein that is pressure is restrained by the load to rate.
通过该装置实现了对超声电机负载力矩的施加以及在真空环境下对超声电机转速、转矩的测量。
With the testing system, the mechanical load is applied and the relationship between the mechanical load and the revolution speed of the ultrasonic motor is studied under the vacuum condition.
通过该装置实现了对超声电机负载力矩的施加以及在真空环境下对超声电机转速、转矩的测量。
With the testing system, the mechanical load is applied and the relationship between the mechanical load and the revolution speed of the ultrasonic motor is studied under the vacuum condition.
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