控制器通过监测电机定子电流的大小,将其起动电流控制在允许的范围内。
Through the detection of the stator current, the control can confine the starting current within the allowable range.
对于电动机起动需要控制起动电流和转矩震动的问题,采用双闭环的控制方案,即电流闭环控制和功率因数角闭环控制。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
实际运行结果表明,该控制装置起动电流小,可靠性高,实际运行情况良好。
The operation result on the spot shows that the control device works with small initial current good reliability and operating condition.
本文提出电流继电器控制绕线式异步电动机起动电路改进方法,并对改进电路优劣进行了分析。
A method in the improvement of current relay controls winding asynchronous motor starting circuit is put forward, and the merit, demerit of it are described in the paper.
对感应电动机起动特性进行了分析,针对其起动电流较大的问题,设计了一种软起动模糊控制器。
Considering the large startup current of induction motors, this paper presents a fuzzy control soft starting system.
该起动控制方法不但有能效控制起动电流大小,而且改善了BLD—CM开环起动性能,提高了系统的可靠性。
This method can not only control size of the starting current efficiently but also improve open-loop starting performance of BLDCM, so improve the reliability of the system.
根据VSC起动过程的特点,设计了对VSC - HVDC系统模型起动的控制器,为避免起动过程的过电流采用了一定的限流措施。
According to the characteristics of VSC start-up process, the controller to start VSC-HVDC simulation model is designed. Some measures are used to avoid the over current in the simulation.
仿真结果表明软起动控制可以有效地减小高压异步电动机的起动电流,使电机平稳起动。
The results of the simulation proved that the soft starting control can effective reduce start current as high voltage induction motor start up directly and the motor could start up smoothly.
在液压介质温度控制、排气流程、降低起动电流等方面进行了改进。
Its hydraulic medium temperature control, gas exhaust flow, starting current control and so on are improved.
本文研究了三相感应电动机软起动器,主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角,可降低三相感应电动机定子电压,从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
对交流调压电路进行了进一步的研究,利用起动电流信号作为反馈量,对三相感应电动机软起动控制系统进行闭环控制。
Further study of Circuit exchange regulator presents, takes the starting current as feedback signal to complete closed-loop control of soft start control of the three-phase induction motor.
内装转换开关,用于电流60A以下的电气线路中,作为电源引入开关,并可控制电动机起动变速停止换向等。
Inside installed selector switch, can be used in the circuit below60A as power lead-in switch, and the switch cab control motorstart, change speed, stop, and commutation.
采用该控制器有效解决了电机在起动过程中产生的大冲击电流的问题,避免了水锤现象的产生,使得水泵机组的运行安全平稳。
Use of the controller gave an effective solution to the large shock current in starting of the motor, and avoided the occurrence of water …
介绍了单相电动机离心开关断开转速的微机测试系统,该系统利用单板机控制,以电动机起动电流作为开关断开信号。
The paper introduced a microcomputer measuring system that takes measurement of the cen-triffugal switch breaking speed of single phase induction motor.
本文针对三相异步电动机起动电流较大的问题,设计了一种软起动模糊自适应控制器。
Considering the large startup current of induction motors, this paper presents a fuzzy Aaptive control soft starting system.
本文针对三相异步电动机起动电流较大的问题,设计了一种软起动模糊自适应控制器。
Considering the large startup current of induction motors, this paper presents a fuzzy Aaptive control soft starting system.
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