Finally, simulating experiment for the whole system is carried through with the stator flux-oriented vector strategy and control arithmetic of rotor speed perturb and power observation.
最后本文采用定子磁场定向的矢量控制策略，结合转速扰动功率观测的控制算法对转子侧进行了仿真验证。
The rotating system of CT machine is simplified into a rigid rotor system. There exist clearances between the stator and the elastic support.
将全身CT机的机械回转系统简化成一个刚性转子系统，该系统的静子与支承之间存在间隙。
The magnetic levitation system is based on the power of attracting between the electromagnets in the vehicle and the ferromagnetic stator packs in the guideway.
磁悬浮系统依靠列车上电磁铁导向和铁磁定子之间的吸力工作。
The coupled dc motor can be adjusted so that the speed of the system is higher than the synchronous speed and the system rotates in the same direction as the stator rotating field.
所连接的直流电动机可以这样调整使得其转速高于同步转速且旋转方向与定子旋转磁场的方向一致。
The new construction in detail on the frame structure, stator core, winding, rotor assembly, ventilation system, bearings, noise damping etc. is also noted.
文中还进一步阐述了机座结构、定子铁芯、绕组、转子装配、通风系统、轴承、噪声阻尼等新的结构细节。
The modelling inaccuracy and parameter drift in motor control, such as the stator and rotor resistance shift with temperature, act as the disturbance in the control system.
电机控制模型中的建模误差，以及系统运行中的参数漂移，诸如电机的定、转子电阻随着温度发生变化，相当于对所研究的控制系统加入了扰动。
The influence on the system performance is reduced by feeding back the identification value of the stator resistance.
通过将定子电阻的辨识值反馈，减小了定子电阻变化对系统性能的影响。
A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.
自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。
This model is carried out easily to avoid the harmful influence of the change of stator resistance and system parameters under low speed situation.
该模型易于实现、实时性较好、能够克服低速状态下定子电阻变化及系统参数变化的影响。
Based on the analysis of control strategy of the system, this paper used respectively voltage oriented and stator flux oriented vector control in grid side and rotor side of the converter.
在分析了该系统控制方法的基础上，建立了交直交变频器网侧电压定向以及转子侧定子磁场定向的矢量控制系统模型。
This paper presents a kind of direct torque control with a stator resistance estimator for an AC motor speed-governing system based on fuzzy logic control.
介绍一种基于模糊控制理论的定子电阻辨识器的直接转矩控制交流电机调速系统。
On the basis of the scheme, a stator flux estimate technique based on stator resistance compensation is also presented, and the simulation system of the direct torque control project is established.
在此基础上，提出定子电阻整定的定子磁链估计方法，并建立一个定子磁场定向直接转矩控制的仿真系统。
The direct torque control for permanent magnet synchronous motor is affected by the variation of stator resistance, and consequently the accuracy of speed adjusting system.
永磁同步电机直接转矩控制受定子电阻变化影响，进而影响调速系统的精度。
The test results show that the ground fault at any point of the stator of a large unit-type generator-transformer system can be successfully protected.
试验结果表明：大型发电机一变压器组的定子的任何一点上发生接地故障时都能成功地获得保护。
The sampled stator voltages and currents were conversion to digital quantity and given to speed estimation system for estimating speed, then contrast it with the actual measured motor speed.
将采样得到的电机定子电压和电流转换为数字量后输入到转速估计系统来估计转速，并跟实际测得的转速进行对比。
To change of motor stator frequency and motor parameter, the example calculating and analyse for system stability is carried on.
针对电机定子频率和电机参数变化，对系统稳定性进行了实例计算和分析。
The magnetic levitation system is based on the power of attraction between the electromagnets in the vehicle and the ferromagnetic stator packs in the guideway.
磁悬浮系统依靠车辆上的电磁铁和固定在轨道上的磁铁定子之间的引力实现运行。
The stator resistance of asynchronism electromotor in direct torque control system, is a variable value which influence the low speed performance of the system.
在直接转矩控制系统中，异步电动机定子电阻为一变化值，从而影响了控制系统的低速性能。
Therefore researches on the stator insulation and heat-transfer system of horizontal electrical machines have very important academic significances and applied values.
因此，研究卧式蒸发冷却电机定子绝缘与传热系统具有十分重要的理论意义和实用价值。
The change of the stator resistance of induction motor will greatly effect the performances of direct torque control (DTC) system at low speeds.
直接转矩控制系统在低速运行时，电机定子电阻的变化影响了系统的性能。
Twin stator brushless doubly fed generation system is quite prospective for variable speed and constant frequency solutions.
而双定子无刷双馈风力发电系统是当前变速恒频风力发电技术研究中一个很有发展前景的课题。
In this paper a new speed sensor-less vector control system based on stator-flux-oriented is researched and analyzed.
本文对一种新型的基于定子磁链定向的无速度传感器矢量控制系统作了研究和分析。
Twin stator brushless doubly fed machine generation system which has no electrical brush and can running in variable speed and constant frequency condition is very suitable for wind power generation.
双定子无刷双馈发电机具有无刷化和可进行变速恒频发电的特点，非常适合于风力发电系统，对其发电系统的研究，将使这种新型电机能够尽快地应用于实际之中。
Hence, the stator and rotor ground fault protection play an important role in the protection system of generator.
发电机定子接地保护及转子接地保护是发电机的继电保护系统中的一项重要内容。
To solve the problem of abnormal temperature rise of generator stator slots, unknown foreign powder in the 300MW generator stator water cooling system was characterized and analyzed by SEM and EDS.
为解决发电机定子线圈槽的异常升温现象，利用扫描电子显微镜、能谱仪等现代分析手段对300MW发电机定冷水系统不明异物进行了表征和分析。
The mathematical model in scattered zone of the axial temperature rise distribution along the back of stator core is established with system analysis method.
用系统化分析方法构造了大型水轮发电机定子铁心背部沿轴向温升分布离散区域数学模型。
Since under no-load state the dual stator winding motor was similar with the transformer, use transformer to prove the control system is feasible.
由于在空载情况下，定子双绕组电动机与双绕组变压器的运行情况相似，所以可以用变压器进行验证。
Therefore a diagnosis of insulation condition to stator winding is an extremely important means to the assessment of electrical machine, especially for large one's insulation system.
因此，对定子进行绝缘状况诊断是评估电机特别是大电机绝缘系统非常重要的手段。
Therefore a diagnosis of insulation condition to stator winding is an extremely important means to the assessment of electrical machine, especially for large one's insulation system.
因此，对定子进行绝缘状况诊断是评估电机特别是大电机绝缘系统非常重要的手段。
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