三相异步电动机运行过程中断相运行危害极大。
It is very dangerous that the three phases asynchronous motor is operated after certain phase was broken off.
多台异步电动机运行时，上位机与控制器之间的通信比较复杂。
When many induction motors are operating, the communication between computer and controllers is very difficult.
根据电动机运行特性，以单片机技术为核心，实现电动机的全面保护。
According to motor operation properties, overall protection of motor are realized with chip microprocessor technology.
异步电动机运行在额定工作状态效率较高，轻载运行时效率就会明显下降。
Efficiency of induction motor at rated operation state is higher and is obviously reduced at light-load operation.
励磁系统是同步电动机运行系统的重要组成部分，直接影响电机的运行特性。
Excitation system is an important part of synchronous motor running system, it affects the operating characteristics of motor directly.
第二部分对永磁同步电动机运行于周期性负载时的动态性能进行分析和研究。
The analysis and study on the dynamic efficiency of PMSM performing under the various loads.
行波磁场与次级相互作用便产生电磁推力，这就是直线电动机运行的基本原理。
Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
控制器调谐自适应参数的神经网络，在电动机运行时，通过自上线的网络可修改。
The controller tunes parameters of neural network adaptively via the self-modifiability of network on-line, while the motor is running.
试验表明，用五相混合式步进电动机二相低速同步电动机运行，其运行性能优良。
The test results indicate that the operating performance of the five-phase hybrid stepping motor when it operates as a two-phase low speed synchronous motor is good.
在电动机运行前，该保护系统对外部保护线路、PLC内部程序及PLC自身进行检查。
Before the operation of the motor, the system detects the external protective circuit, PLC and its internal program.
本文简述了三相异步电动机运行中的效率、功率因数、负载率和功率的关系及各种节电措施。
This paper explained in brief the relation of three-phase asynchronous motor among efficiency, power factor, load rate and power and every power saving measures.
利用有限元法，计算了异步电动机运行时的温度场分布，并与现场实测结果进行了分析比较。
A method on calculation 3D thermal field in the stator of induction motor is presented, and the calculation results are compared with the measurements.
文章总结了起重电动机工况特点，提出相应的电工焊接工艺方案，解决了电动机运行的可靠性问题。
The paper summarizes the working condition of the hoisting motors, suggests the corresponding electrical welding workmanship and guarantees the reliable operation of the hoisting motor.
主要探讨应用模糊控制技术，研究各种鼠笼式电动机的节能控制方法，进一步提高电动机运行效率。
The energy saving control of various squirrel-cage is studied in this paper by means of fuzzy control technique to improve the electro-motor operating efficiency.
但是无刷直流电动机运行中存在转矩脉动问题，对实现更精确的位置和更高性能的速度控制有极大影响。
But it has the disadvantages of torque pulsation, it can't achieve accurate position and speed of higher performance.
试验表明，仿真试验结果与实际试验一致，无论发电或电动机运行方式，对低频振荡阻尼均有较大增强。
The test show that the simulation test result is identical with that of practical test. The low frequency oscillation damping is considerably enhance on w...
但是，无刷直流电动机运行中存在转矩脉动问题，对实现更精确的位置和更高性能的速度控制有极大影响。
But the BLDCM has the disadvantages of torque pulsation, which is in the way of achieving accurate position and speed of higher performance.
本文还建立了电动机过载保护的硬件和软件平台，实现了电动机运行、过载保护、参数组态、监控的网络化。
The hardware and software is established. The motor's operation, overload protection, parameters configuration, monitoring can be achieved through the network.
本系列产品使用32针微处理器和绝缘栅双极型晶体管，具有电动机运行不发出噪声、高效、低速等性能特点。
Using a 32-bit microprocessor and insulated gate bipolar transistors, the M-Max series provides quiet motor operation, high efficiency and smooth, low-speed performance.
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。
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.
如果一台发电机组没有运转，并且没有逆功率继电器保护，运转的机组就会驱动这个机组，这台机组上的发电机则变成电动机运行。
If one set stops and reverse power protection is not provided, the set still running will drive the set that has stopped. The generator on the set that has stopped will act as a motor.
针对开关磁阻电动机运行的振动和噪声问题，在对开关磁阻电机非线性模型进行分析的基础上，将直接转矩控制方法应用到SRM的控制当中。
As to the problems of operating noises and vibrations, this paper applied the Direct Torque control (DTC) technique to SRM's controlling, based on the analysis of the nonlinear model of SRM.
同时它与二相和四项混合式步进电动机相比较也显示了具有较高的电机运行频率和较小的转矩脉动的优点。
Simultaneity by comparison it with two-phase and four-Phase hybrid stepping motors, also displayed its advantages of higher motor action frequency and Iower torque p...
通过对盘式无铁心永磁同步电动机结构的分析，总结此种电机运行中的特点，及其在控制中与普通永磁同步电动机的不同之处。
After the structure of the coreless disk PM synchronous motor is analyzed the running characteristics and control differences would be summed up.
同时它与二相和四项混合式步进电动机相比较也显示了具有较高的电机运行频率和较小的转矩脉动的优点。
Simultaneity by comparison it with two-phase and four-Phase hybrid stepping motors, also displayed its advantages of higher motor action frequency...
由五点二安培异步电动机驱动，这砂光机运行顺利，并已对权力的木工需要。
Powered by a 5.2 amp induction motor, this sander runs smoothly and has plenty of power for woodworking needs.
由五点二安培异步电动机驱动，这砂光机运行顺利，并已对权力的木工需要。
Powered by a 5.2 amp induction motor, this sander runs smoothly and has plenty of power for woodworking needs.
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