总之,感应电动势滞后于电流。
在新生行业中,无论是下一代的风力涡轮机、带有纳米级感应器的医疗器械抑或电动汽车,美国与其它国家具有同等机会成为一个有实力的玩家。
The U.S. may have as good a chance as anyone of being a strong player in nascent industries, whether next-generation wind turbines, medical devices with nano-scale sensors, or electric cars.
尼古拉·特斯拉发明的感应电动机本质上就是一台旋转变压器——首先在电动机的固定钢制外壳(定子)上安装上绕组,然后将导体安装入内轴(转子)。
Tesla's invention is, in essence, a rotating transformer. Its primary windings reside in a stationary steel casing (the stator) and and secondary conductors are attached to an inner shaft (the rotor).
过去,异步感应电动机的主要缺陷是难于变速。
In the past, the main disadvantage of asynchronous induction motors was the difficulty of varying their speed.
更令人惊叹的是,这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺(400牛顿米)的扭矩,也就是说传统的变速器的作用将减少。
More impressively, the motor's 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6,000 revolutions per minute, which eliminates the need for a conventional gearbox.
更令人惊叹的是,这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺(400牛顿米)的扭矩,也就是说传统的变速器的作用将减少。
More impressively, the motor’s 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6, 000 revolutions per minute, which eliminates the need for a conventional gearbox.
驱动这些机器的动力装置是一台50马力的感应电动机。
The power unit for driving the machines is a 50-hp induction motor.
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.
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.
标准型三相感应电动机“,”
通过对磁场的分析,可以计算出直线感应电动机的运行特性。
By analyzing magnetic field, the operation characteristic of the linear induction motor was calculated.
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.
摘要与传统感应电动机相比,永磁同步电动机具有独特的性能。
Compared with the traditional induction motor the performance of the permanent magnet synchronous motor is special.
每根柱都使用一个三相感应电动机进行驱动。
主要研究适用于高开关频率变频器驱动的感应电动机数学模型。
Inductive motor mathematics model suitable for high switching frequency inverter drive is described in this paper.
作用:流量变送器通过自身的结构将要检测的导电流体的感应电动势信号传送给流量显示器。
Function: the transmitter transmit the induction signal which need to be test to fluid monitor by its structure.
必须保护感应电动机,防止过载和欠压。
It is necessary to prevent induction motors against overload and undervoltage.
研究了ZIP负荷模型与感应电动机相并联的综合负荷模型参数的简化辨识策略。
The simplified identification strategy for parameters of composite load model constituted by ZIP load model in parallel with asynchronous motor is researched.
其次分析了感应电动机及其传动系统的分岔现象。
Secondly, Bifurcations in induction motor and drives are concerned with.
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,感应电动机的节能是节电的主要环节。
So the energy saving for motors is a key link for electricity saving.
给出了破裂时内真空室和铜壳的感应涡流、磁场和电动力。
The induced eddy currents, magnetic fields and electromagnetic forces in the vacuum vessel and copper shell are calculated.
结果,由于感应电动机为发电机,功率流将反向,拖动系统的动能将被反馈回电网。
As a result, the generating action of the induction machine will cause the power flow to reverse and the kinetic energy of the drive system will be fed back to the supply.
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.
对小扰动下感应电动机的动态电压稳定性进行了仿真,并运用其负荷特性对仿真结果进行了分析。
Simulation of dynamic voltage stability of induction motor in the context of small disturbances and analyses of the simulation results with its load characteristics.
论文在课题组已设计的电动汽车感应电机驱动控制系统的基础上,设计了一套新的电动汽车感应电机驱动控制系统。
On the base of the induction motor drive system for electric vehicles designed by project team, the dissertation designs a new induction motor drive system for electric vehicles.
根据感应电动机伺服驱动系统高性能的要求,设计了一种基于双模糊神经网络的滑模控制的感应电动机伺服驱动系统。
Considering the requirement of high performance of induction motor servo drive system, this paper designs such a system with a sliding-mode position controller based on double fuzzy neural network.
根据感应电动机伺服驱动系统高性能的要求,设计了一种基于双模糊神经网络的滑模控制的感应电动机伺服驱动系统。
Considering the requirement of high performance of induction motor servo drive system, this paper designs such a system with a sliding-mode position controller based on double fuzzy neural network.
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