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1.A Method of Rotor Speed Measurement and Phase Information Acquirement
一种转速信号测量和相位信息获取的方法收藏指正
2.The highest rotor speed is up to 100,000r/min, production is higher.
5转杯最高转速可达100000转/分。转杯支承采用进口的轴承，具有较高的稳定性和可靠性。收藏指正
3.Rotor-speed adjuster is a critical unit in the system to produce the torque control command;
转速调节器是系统产生转矩指令的一个关键环节。收藏指正
4.?According to the requirement of rotor speed test during the dynamic balancing process,a computer assistant testing(CAT) method which utilizes PC and Hall sensor to test the rotor speed on-line is introduced.
根据动平衡过程中对转子转速测量的要求,介绍了一种采用PC机和霍尔元件对转速进行实时检测的计算机辅助测试方法。收藏指正
5.The embedded RTOS μC/OS-II was repot to EEC controller for the distributed rotor speed control system with the processor of 2407A.
此外还将嵌入式实时操作系统μC/OS-II 移植到 2407A 上,并针对分布式转速控制系统中的 EEC 控制器进行了多任务设计。收藏指正
6.Abstract: The synchronization control scheme of mechanical sy stem with multi-motor drives is proposed,in which every induction motor is controlled to trace the same speed command by speed sensorless field-oriented control respectively.For every induction motor,a full-order estimator is established to identify rotor speed,stator and rotor resistance,and external load.The torque current of induction motor is calculated by using the estimated external load and PID speed controller.Computer simulations show the effectiveness of the proposed scheme.
文摘:本文提出通过磁场定向控制分别控制多个感应电动机跟踪同一个指令性速度的多机驱动机械系统的同步控制方案.通过建立全维转子状态估计器，辨识感应电动机的转子速度、定子和转子电阻、瞬时外负载，根据外负载辨识结果与速度PID控制器确定感应电动机的转矩电流，实现感应电动机的无速度传感器控制.计算机仿真结果表明了该控制方案的有效性.收藏指正
7.On the bases of analyzing two typical direct estimation methods of rotor speed, a novel sensorless technique of permanent magnet synchronous motor (PMSM) direct torque control (DTC) is put forward in this paper.
通过分别计算出定子磁链矢量角位移与转矩角，将后者从前者中减去得到转子磁链矢量的角位移进而得到转子速度信号，并采用改进积分器取代传统的积分器。收藏指正
8.The V/f control can exhibit excellent abilities when and only when it is applied to IIM and is of the open loop type in terms of the rotor speed.
因此，V／f控制只有用于IIM中构成转子速度开环系统才能获得优良性能。收藏指正
9.Compared with RDC (Rotating Disk Contactor),because of strong agitation of the closed turbine (s),NR and dp decrease sharply. Moreover as NR<NRc(critical rotor speed),the droplets dispersed can hardly be redispersed when they ascend.
由于闭式涡轮的强烈搅拌作用，NR和dp均比RDC大大降低，且由于NR小于临界转速NRc，液滴上升过程中被转盘进一步分散的几率很小，因而dp轴向分布较均匀。收藏指正
10.In the result of a series of experiments the relationships of blade flutter margin with rotor rotational speed,effective CG position of blade in chord and torsional stiffness of blade have been obtained.
通过激桨叶的扭转频率、测桨叶的挥舞响应，试验得到了桨叶颤振裕度与旋翼转速、桨叶弦向有效重心位置及桨叶扭转刚度之间的关系，即桨叶颤振裕度随旋翼转速的提高而降低；收藏指正
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