本文提出了绕线式感应电机转子回路电阻的斩波调节原理，设计了双环调速系统，并进行了计算机辅助设计和仿真研究。
This paper presents a chopper adapting principle of rotor's resistance of induction motor, develops a two loops speed governing system, and gives computer simulation results.
系统采用电流、速度双闭环控制，电流、速度的调节采用PI调节，转子磁极位置通过霍尔元件检测。
The double close loops of speed and current control is introduced in the system and the PI control is implemented in the current and speed loop, the position of rotor pole is detected by hall element.
文中还利用有限元法有效地解决了主轴双转子耦合刚度的计算问题。
In addition, the coupling stiffness of the double rotors was successfully calculated with the finite element method.
根据矢量控制理论和自动控制原理，建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
该系统是双馈发电机转子侧的变流器控制电路，虽然不是很完善，有一定得参考价值。
The system is doubly-fed generator rotor side converter control circuit, although not perfect, there must be reference value.
所配发电机是一台高效率的4极双馈式发电机，带有绕组转子和滑差线圈。
The matched generator is a high efficient 4-pole double feeding generator with wound rotor and slip windings.
针对风力发电系统中的双馈电机提出一种转子感应电势定向矢量控制方法。
In wind power system, a vector control strategy using rotor induct electric potential orientation for doubly fed generator was proposed.
所得结果表明，双极永磁球形电动机内部电磁关系简单，易于实现对转子位置的控制。
The model shows that the electro-magnetic coupling relationship inside the two-pole PM spherical motor is simple and that the torque of the motor is easy to control.
提出了基于双PQ变换的感应电机转子故障诊断新方法。
A new rotor faults diagnosis method for induction motors based on the double PQ transformation is presented.
这是双馈电机空载情况下，转子侧变流器的控制电路。
This is a doubly-fed machine no-load cases, the rotor side converter control circuit.
在此基础上提出一种基于双同步坐标模型的转子磁场定向控制策略，实现了电机的动态转矩控制。
On the base of that the paper proposes a rotor flux oriented control strategy according to the dual-synchronous coordinate model, which can realizes the dynamic torque control.
本文以双馈式电机转子磁场走向为控制的约束条件，建立了双异步变速恒压恒频发电机的矢量控制模型。
Using field orientaion of rotor of doubly fed machine as confining condition, this thesis has established vector control model for double asynchronous VSCFCV generator.
论述了双T形转子轮槽加工中所用成形车刀的设计方法及制造时关键要点。
The design method of forming lathe tool for machining double T-shape rotor wheel groove was discussed in this paper and finally the keys for manufacturing are illuminated.
研究结果表明：双馈感应发电机的定、转子电流以及电磁转矩取决于发电机内部的定、转子磁场。
Research results show that the stator and rotor currents and air-gap torque are subjected to the stator and rotor flux fields in the generator.
在双转子航空发动机中，由于转子系统不可避免地存在不平衡量，当两个转子的转速比较接近时，发动机会出现拍振现象，拍振将引起振动强度过大问题。
There is inevitable unbalance in the dual-rotor system of the aero-engine, the beat vibration will occur to engine when two rotors are operating at approximately the same speed.
采用整体传递系数法计算转子系统的动力特性，进而求解双转子系统的瞬态响应。
The dynamic characteristics were calculated by the WTCM, and then the transient responses of dual-rotor system were solved.
为此我们确定双馈电机调速时的矢量控制策略即转子电流定向的矢量控制。
The paper gives the vector control speed system of the double-fed machine on the rotor current orientation.
在系统发生功率振荡时，通过改变转子励磁电压的相角调节双馈变速风电机组输出与振荡相关的阻尼功率，达到使风电场能够改善系统阻尼的目的。
During the power oscillation of a power system, a damping active power is injected into the network from the DFIG machine via regulating the rotor excitation voltage Angle.
结果表明：圆柱滚子轴承的径向游隙直接影响着滚动轴承-双转子系统的稳定性。
The results show that the system stability is directly influenced by the radial clearance of cylindrical roller bearing.
卧螺离心机是一种具有微小速差的双转子系统，它的不平衡振动信号是一个拍振。
The horizontal decanter centrifuge is a dual rotor system with small rotating speed difference, of which unbalanced vibration is a "beat" signal.
为改善起动特性，还对双鼠笼转子的计算进行了推导，分析了整马力单相步电动机的起动过程。
In order to improve its starting performance, we derivated the calculating method of this kind of motor with double cage rotor and analysed its starting process.
研究了双转子连续混炼机的混炼过程和混炼原理，并建立了混合过程的数学和物理模型。
The mixing process and mechanism of two rotor continuous mixer were investigated, and the mathematical and physical models of mixing process were established.
这种新型的无刷双馈电机转子采用变极原理设计。
This new type of brushless double-feed machines rotor is designed by pole-changing method.
应用双能X线骨密度仪测量92例绝经后妇女的第1～4腰椎、股骨颈、转子间、大转子的骨密度。
The bone mineral densities (BMD) of the 1-4 lumbar spines, neck of femur, tuberosity and greater trochanter were determined by dual energy X-ray absorptiometry (DEXA) in 92 postmenopausal women.
主要转归指标：主要分析调查了因股骨转子下骨折或股骨干骨折住院与双膦酸盐暴露时间之间的关联性。
MAIN OUTCOME MEASURES: the primary analysis examined the association between hospitalization for a subtrochanteric or femoral shaft fracture and duration of bisphosphonate exposure.
途述了带外函道的双转子发动机内、外函分流，各自通流阻力可以改变的燃气发生器试验装置和试验结果。
This paper deals with the test plant and test results of a gas generator of a by-pass dual-rotor engine with variable duct flow path resistance.
本文在交流电机双轴理论的基础上，以异步电动机转子磁通和定子电流为状态的状态方程为模型，推导出一种新型异步电动机磁通观测器。
Based on the two-axis theory of the induction motor and a state equation about the rotor fluxes and stator currents, a new induction motor flux observer is derived.
针对双鼠绕组电机转子的结构问题提出了改进的方案及具体实施工艺。
Improving plans and concrete process are put forward in view of the structure problems of double squirrel cage winding motor.
双输出绕线式发电机的定转子绕组之间不仅有磁的联系，而且有电的直接联系。
There are not only magnetical connection but also direct connection of electricity between stator and rotor windings of the doubly fed slip-ring generators.
双输出绕线式发电机的定转子绕组之间不仅有磁的联系，而且有电的直接联系。
There are not only magnetical connection but also direct connection of electricity between stator and rotor windings of the doubly fed slip-ring generators.
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