介绍了利用绕线转子异步电动机转子频率控制电机转速的新方法。
A new method controlling the speed of a motor by using the rotor frequency of a wound-rotor asynchronous motor is introduced.
铁道机车车辆牵引领域中的转矩控制是利用脉冲发生器（PG）来检测牵引感应电动机的转子频率。
The Pulse Generators PGs are equipped to detect the rotor frequency of induction traction motors for the torque control in railway vehicle traction field.
结果表明：不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
假设转子的转速与其轴系本身的频率比较接近时，设备将会出现共振现象。
If the rotor speed is close to the frequency of the rotor system, the resonance phenomenon will occur.
本文针对风机转子进行了固有频率振型和临界转速计算。
Calculations were conducted of the fan rotor natural frequency, vibration modes and critical speeds.
分析了转子断条故障特征在电机启动电磁转矩信号中的表现形式及频率变化规律。
The expression and frequency variety law of the rotor broken bar fault feature component in the startup electromagnetic torque signal are analyzed in detail.
电磁激振器安装在转子的伸出端，产生脉冲激励力或不同频率的简谐激励力。
EA mounted on the either end of rotor shaft can generate impulse excitation force or simple harmonic excitation force with different frequency.
利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。
Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor.
同时由于导流体尾迹内部脱落涡强度太低，其脱落频率也不会对发动机低压转子振动特性产生影响。
Moreover, because the intensity of vortex shedding in the wake of the guide vane is too weak, it's frequency has no influence on the vibration characteristics of the low-pressure compressor rotor.
建立非线性转子系统运动方程，利用多尺度法求得频率响应方程。
The motion equation of nonlinear rotor-bearing system is established and the frequency responding equation is obtained by multiple-scales method.
本文方案是基于转子磁链定向、通过固定开关频率、运用空间矢量调制(SVPWM)方法的矢量控制。
This scheme is based on the rotor flux, through the fixed switching frequency and using space vector modulation (SVPWM) method vector control.
通过实验测试了在不同频率及转子在不同轴向位置时电机的交直轴电感。
And the inductances of a prototype were measured at different test frequency and with taper rotor at different axial locations.
采用有限元法分析滚珠轴承和磁浮轴承—转子系统，获得相应线性系统的固有频率和模态振型等动态特征量。
Using the finite element methods to study the natural and linear bearing EMBR system, the inherent frequencies and modes are obtained.
提取分析结果，得到转子的前10阶固有频率和相应振型。
The former 10 ordered inherent frequencies and types of vibration of rotor have been obtained from the results.
该陷波滤波器采用通用式结构，其中心频率分布在转子转速附近以抑制不平衡振动。
The filter used a kind of general structure, whose central frequency located nearby the rotation speed to reduce the unbalance vibration.
这两个特征扰动的扰动频率与压气机转速成正比，与转子转动频率的相对频率分别等于5和8；
The frequencies of these disturbances are approximately in proportion to rotor speed and the relative frequencies are 5 and 8 respectively in terms of rotor rotating frequency.
介绍了某型燃气轮机转子模态试验，试验测得转子静态固有频率和模态振型。
This paper takes a type gas turbine rotor as an example to analyze its natural frequency and modal shape.
当发电机的外接负载不对称时，转子的固有频率一分为二，转子的振动在原来单频振动的基础上，产生了双重共振现象。
Its natural frequency falls into two parts when the loads exerted on generator rotor are asymmetrical. Dual resonance phenomenon appears based on the former single frequency vibration.
针对齿轮耦合的简单平行转子系统，研究了固有振动的特点，分析了影响固有频率的主要因素。
Properties of free vibration were analyzed for simplified geared rotor, and the main factors of influence on eigen frequency were also analyzed.
通过直接计算导条损耗与漏磁场能量得出了计及频率影响时转子导条电阻与转子槽漏感。
The rotor bar resistance and slot leakage inductance considering frequency effect are gotten by mean of bar loss calculation and leakage magnetic field energy calculation.
随着磁场频率的增大，盘型磁流变流体阻尼器抑制转子振动的能力减小。
Increases in magnetic field frequency decreases the capability of the dis-type MR fluid damper to reduce rotor vibration.
实验结果表明：在转子尾迹的影响下，静子叶片表面的波动频率是转子的尾迹频率及其倍频。
Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency (BPF) and its harmonics.
介绍了邯郸热电厂2 0 0MW机组大修中，中压转子末级叶片组频率落入危险的共振区。
This paper introduces the Handan Co generation Power plant, intermediate pressure rotor's last stage-blade frequency reach dangerous resonance area when 200mw units were overhauled.
对迷宫汽封转子振动频率对转子动特性系数的影响进行了分析。
For labyrinth seals, the effect of the vibration frequency of rotor on the rotor dynamic coefficients is analysed in this paper.
该系列电机的定子采用集中式绕组，转子采用永磁材料加工，电机可根据电源的频率要求，输出恒定的转速。
The stator of motor adopts centralized winding and its rotor applies permanent magnet material. The constant speed can be achieved at a certain frequency of power supply.
结果表明，当外加激励的频率等于转子的固有频率时，将诱发转子产生大幅的轴向挠性振动。
The results show that the violent flexible vibration will happen if the motivation frequency equals to the natural frequency of the rotor.
将弹性支承轴系分为转子子系统与支承子系统，假定在交联点处的位移阻抗值，则可由频率方程序确定转子子系统的临界转速。
By assuming impedance values of the coupling points, the critical speeds of the rotor subsystem can be determined from its frequency equation.
不对称静子叶片分布非谐设计下，转子所受到的激振力由静子叶片均布情况下的单频率高幅值激振力转变为多频率成分低幅值激振力。
To reduce the dynamic stress of rotor blades under the wake of front stator vane, an asymmetry stator mistuned design was conducted.
转矩与转速波动的频率相等，波动的幅值随转子绕组故障严重程度增加而增加；
Simulation and computation results show that the rotor winding faults will cause electromagnetic torque and rotating speed to fluctuate;
转矩与转速波动的频率相等，波动的幅值随转子绕组故障严重程度增加而增加；
Simulation and computation results show that the rotor winding faults will cause electromagnetic torque and rotating speed to fluctuate;
应用推荐