1、

this paper studies the pure electric bus traction control system and control strategy for induction motor for traction motor, the pure electric bus uses a rotor field oriented vector control technology.

文章研究了纯电动公交车的牵引控制系统和控制策略,以感应电机为牵引电机的纯电动公交车采用了以转子磁场定向的矢量控制技术。

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2、

As the most typical control strategies in AC motor drive system, Rotor Field Oriented Control ( RFOC) and Direct Torque Control ( DTC) have their own features in robust performance.

作为当前两种最具代表性的交流变频调速控制策略,转子磁场定向控制(RotorFieldOrientedControl,RFOC)和直接转矩控制(Direct torque control,DTC)在鲁棒性能上各具特色。

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3、

the earth-fault protection for generator rotor field coil

发电机转子励磁绕组接地保护

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4、

Rotor field-orientation control of induction motor based on control of rotating electromotive force

基于旋转电动势控制的感应电动机转子磁场定向控制

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5、

the modeling and simulation of im controller in rotor field oriented based on voltage inverter

基于电压型逆变器转子磁场定向的感应电机控制器建模与仿真

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6、

Its field trial showed that the free grain loss is reduced and specially invented windrowing device closely behind the stripping rotor located justified itself by the clear cutting with shorter stubble and being center delivered windrow of the straw.

田间试验表明落粒损失减少,作者发明的设置于摘脱流通筒后面的切割搂集装置工作性能良好:割茬低条铺放在两履带之间。

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7、

Affects of Rotor Magnetic Field Center Deflection and Rotor Pole Center Suspending Difference to the Pressure on Thrust Pad in Large Synchronous Machines

大型同步电动机转子磁场中心安装偏差及转子磁极中心挂装高程差对推力瓦受力的影响

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8、

Three-dimensional flow field inside compressor rotor tip region at near stall condition

压气机转子内尖区近失速状态三维流场

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9、

A commercial N-S solver has been employed for simulation and investigation of the unsteady flow field inside the tip clearance of a turbine rotor.

商用N S求解器已经被用于透平动叶顶部空隙的非定常流场的模拟和研究。

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10、

The Euler/ Kirchhoff method is adopted to calculate the far field noise of UH-1H rotor, and the calculated results are compared with the measured data. The effect of rotor blade tip shape on high speed rotor noise is investigated.

采用CFD与计算声学相结合的Euler Kirchhoff方法对UH-1H直升机旋翼跨声速悬停流动的远场噪声进行定量计算,并将计算结果与实验值进行比较,验证了Euler Kirchhoff方法的正确性。

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11、

The wake is mixing with the last rotor tip leakage vortex in the stator passage, leading to more substantial fluctuations in the flow field.

转子尾迹在静子通道内追赶上从前一转子叶片通道内下来的叶尖泄漏涡,二者的相互作用和掺混导致静子尖区更为复杂的二次流动。

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12、

Considering the skin effect of rotor bar and magnetic field distribution, the rotor slot leakage reactance of different poles and loads is calculated by sinusoidal time-varying finite element method and energy method.

考虑转子导条集肤效应和磁场不同分布,采用正弦时变有限元法和能量法计算了不同极数下起动时和不同负载时的转子槽漏抗。

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13、

To consider magnetic conductance change of tooth harmonic caused by relative motion between stator and rotor, the transient field operation is applied to obtain the rotor iron loss, aiming to analyze the slotted core effect on rotor iron loss.

为考虑定、转子间相对运动引起的齿谐波磁导变化,即电机铁心开槽对转子损耗的影响,采用暂态场计算转子铁心涡流损耗。

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14、

Electromagnetic Field Analysis Calculation and End Coefficient of Induction Motor with Ring Slotted Composite Rotor

具有环形槽的复合转子异步电机的电磁场分析与端部系数计算

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15、

Based on the previous computation for a rotor flow field in forward flight near ground, the thrust coefficient, torque coefficient and blade flapping angles are calculated and analysed against the advance ratios and flight heights.

基于对旋翼近地飞行时流场的N-S方程计算,计算并讨论了近地飞行时,旋翼拉力、扭矩系数及桨叶挥舞角随前进比、离地高度的变化情况。

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17、

The Air Pressure Field Distribution and the Performance of Dust-Exhaust Spinning Unit of Rotor Spinning

气流纺排杂纺纱器流场分布与排杂性能的研究

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18、

Numerical Analysis of Internal Flow Field and Tip Clearance Leakage in Axial Compressor Rotor

轴流压气机转子内流数值模拟及叶顶间隙泄漏分析

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19、

It consists of a rotor and a stator including iron winding, an additive magnetic field adjusting winding, a cup-type rotor with special magnetic pole, inductive slip-rings and power electronic controller.

该系统主要由具有铁心绕组的转子和定子、附加调磁线圈、具有特殊磁极结构的杯形转子、感应式集流器和功率电子控制器等组成。

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20、

The method to eliminate the influence of rotor radial displacement on axial displacement detection is proposed. Based on the analysis of magnetic field of magnet ring in radial PMB, symmetrical multi Hall sensor arrangement is proposed to achieve high dectecting accuracy.

基于径向永磁轴承的磁场分析,提出了多个霍尔传感器径向对称布置的方案,解决了霍尔传感器输出中转子径向位移和轴向位移的耦合带来的问题,提高了轴向位移检测精度。

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