PWM inverter AC motor bring the harmonic current, It pollute electric power systems.
PWM逆变器驱动电机时，对电源端产生谐波电流，给电力电网造成污染。
The stator end-winding support of HV AC motor exists weakness leading to electric break-down.
高压交流电机定子绕组端部固定存在薄弱环节，会引起绕组端部电击穿。
This paper introduces a new method of the mining electric locomotive, which is droved by AC asynchronous motor, speed-control system.
提出了一种新的由交流异步电动机拖动的矿井电机车调速系统。
The Electric Beveler EB24R comes with an AC induction motor which offers even cutting speed, longer durability, lower noise and excellent torque characteristics.
EB24R管板两用坡口机带有一个AC感应电机，提供甚至切割速度，较长的耐久性，降低噪音和卓越的转矩特性。
In the field of electric driving, the adjustable speed control of AC asynchronous motor by inverter was a hot spot because of its energy saving function.
由于异步电机交流变频调速有着明显的节能功效，以及可以实现连续调速等诸多优点，已成为电气传动领域的研究热点之一。
On the basis of analysis of operation performance of AC motor, the harm of harmonic wave of electric net work to electric motor is summarized in the paper.
在分析交流电机工作特性的基础上，阐述了电网谐波对电机的危害。
The tendency of Motor Drive System in Electric Vehicle is introduced. The structure, controller and vector control method of AC Induction Motor Drive System in Electric Vehicle are discussed.
介绍了电动汽车电机驱动系统的发展趋势，阐述了电动汽车交流感应电机驱动系统的结构、控制器以及矢量控制方法。
AC electric motor is widely used in cranes.
交流电动机在起重机上得到了广泛的应用。
Changing the speed of electric motor by using ac frequency conversion is to regulate output flow of hydraulic pump to control the velocity of the motion of hydraulic actuator.
通过交流变频调速改变电机的转速来调节液压泵的输出流量。控制液压执行元件的运动速度。
Then the drive system of the fin stabilizer is analyzed. To give a control policy which AC motor is controlled by applying electric current loop, speed loop, position loop in this system.
然后对转鳍驱动系统进行了分析，确定了在系统中使用电流环、速度环、位置环的交流电动机控制策略。
At the heart of the tractor is the electric motor, which drives the hydraulic pump that supplies power to the wheels. Both ac and DC powered motors are used in e-line tractors.
爬行器的核心是电机，其驱动液压泵为轮组提供动力，电缆爬行器可以使用AC或DC电机。
At the heart of the tractor is the electric motor, which drives the hydraulic pump that supplies power to the wheels. Both ac and DC powered motors are used in e-line tractors.
爬行器的核心是电机，其驱动液压泵为轮组提供动力，电缆爬行器可以使用AC或DC电机。
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