rotor current

Fuzzy PID Control of Rotor Current Excitation in an Asynchronized Synchronous Generator

异步化同步发电机转子励磁的模糊PID控制

The speed-regulation is working under d-q coordinate system of rotor, and takes rotor current component as orientation control, so there is no need to test the initial position of the rotor.

速度调节在转子d-q坐标系下进行，以转子电流矢量进行定向控制，所以无须检测转子初始位置，这样便构成了无速度传感器转子变频控制系统，提高了系统的可靠性。

A improved motor model is proposed by analyzing general inductive motor mathematics model. The model makes rotor current is linear with slip ratio and realizes linear relation between electromagnetism torque and rotation rate.

通过对一般化感应电机数学模型的分析，提出一种改进的电机模型，该模型使转子电流ir与转差率S呈线性变化，实现了电磁转矩和转速之间的线性关系。

A test method of torque synchro rotor quadrature axle damping short-loop loss and current was introduced.

介绍力矩式自整角机转子交轴阻尼短路环损耗和电流的一种测试方法.

The AMA with constant voltage source exhibits damping character, while with constant current source it provides only a negative stiffness that lowers the critical speed of the rotor system.

当提供的电源为恒流源时，控制执行器仅提供负刚度，从而使整个支承刚度降低，转子临界转速下降，此时宜采用变刚度控制。

Proceeding from eliminating the jump of rotor equilibrium position, the authers introduces a way to drive the motor by frequency division of applying high voltage and freewheeling current.

从消除转子平衡位置突跳运动的概念出发，针对常用的双电压驱动方式，提出了用分频加高压和分频泄放的驱动方式来消除振荡的新方法。

The standard samples of the metals and non-metals are separated by an eddy-current separator, and a separation efficiency of 95% can be obtained when the operation factors, mainly feeding speed, rotor speed and belt rotational speed, are proper.

利用涡电流分选机对铜、铝和塑料的标准样进行了分选，通过调节进料速度、转子速度和皮带转速，可以得到分选效率达到95%以上。

Electromagnetic process of self-synchronous paralleling is analyzed. With properly assumptions, mathematical expressions of armature current, rotor current and electromagnetic torque are deduced.

分析了自同步并列的物理过程，通过适当的假设，运用解析法推导了自同步并列时的定、转子电流及电磁转矩的数学表达式。

For the current helicopter of single main rotor with tail rotor, the effect of inflow models with different characteristics on helicopter trim and digital simulation was discussed.

以常规单旋翼带尾桨直升机为对象，讨论均匀与非均匀入流模型对直升机飞行数值仿真的影响。

We can find that the nondimensional process and the matrixing make current model more concise, the substance clearer, and the approach simpler. ( 4) A kind of model of rotor-bearing-seal system dynamics is set up integrally in this thesis.

该模型及算法的无量纲化以及矩阵化表述，使得模型更加简洁，意义更加清晰，算法更为简单。（4）建立了针对复杂转子系统动力学分析的转子轴承密封系统动力分析模型。

This paper presents the calculating method for stator and rotor harmonics unit leakage permeance, slot end and slot bottom pitch leakage reactance coefficient, starting torque, breakdown torque, and starting current in designing of motors with further pole ratio.

阐述远极比电机设计时定、转子谐波单位漏磁导、槽口、槽底节距漏抗系数、起动转矩、最大转矩、起动电流的计算方法。

Two torque estimate methods based on this nonlinear model are proposed: one method estimates torque value by current and rotor position, and the other one estimates torque by current and flux linkage.

在所建立模型的基础上设计了两种转矩估计器：一种通过电流和转子位置计算转矩，另一种则根据电流和磁链来估计转矩。

A novel variable speed constant frequency wind generation system with rotor current hybrid control

新型转子电流混合控制的变速恒频异步风力发电系统