A 2 D axisymmetric nonlinear explicit finite element dynamic analysis program is applied to compute the armature expansion process of the magnetic flux compression generator ( FCG). 建立了爆炸磁压缩装置(FCG)的2D轴对称有限元模型,应用显式非线性动力分析程序进行求解,得到了爆磁压缩装置电枢膨胀过程的图像。
This paper has analysed the magnetic field distribution in YCT under noload and the influence of different armature reactions, and especially, the main flux variance with armature reaction. We provide the foundation to unify the design for engineering. 本文分析了YCT电机空载和在不同电枢反应影响下磁场分布情况,尤其是分析了主磁通分布和受电枢反应影响的变化情况,为在工程上统一设计方法奠定了基础。
The phase differences between excitation current and armature current, magentic flux and transformer potential and the amplitudes of all these variales have all been calculated at the two frequencies. 对不同频率时的激磁电流与电枢电流,磁通与变压器电势间的相位差和数值进行了理论计算。
Being a kind of motor with lower voltage and larger current, the armature reaction of permanent magnet starter motor is more serious than that of the conventional permanent magnet DC motor, and thus the variation of magnetic flux. 永磁起动机属于低压、大电流电动机,电枢反应比一般永磁直流电动机强烈得多,因而气隙磁通的变化要大得多。
In this method, the rotating angular velocity of the "virtual armature magnetic flux" is taken as the dynamic fre-quency of the node. 此方法构想了一种虚拟电机,以它的电枢磁势的旋转角速度作为节点的动态频率。
The reduction in the armature resistance and flux linkage caused by short circuit between the brushes and the commutator segments of DC machines was especially meaningful when the machine was running at zero or extremely low speed. 直流电机电刷短路整流片引起电枢电阻和磁链减小,这对运行于零或极低速的电机影响尤为严重。
The "Virtual Armature Magnetic Flux" Method for Measuring Dynamic Frequency of Power System 电力系统动态频率测量的虚拟电枢磁势法
Furthermore, the frozen permeability method is introduced to study the steady parameters varying with load conditions, such as the quadrature-direct axis armature reaction inductances, the mutual inductance, and the quadrature-direct axis flux linkage excited by the permanent magnet solely. 4. 进一步使用冻结磁导率的方法,研究了交直轴电枢反应自感与互感、永磁体单独激励激励的交、直轴磁链等稳态参数随负载变化的规律。
Since the torque and flux are independence each other, the torque of DC motor is easily controlled by adjusting armature current when the flux is constant. 原因是直流电机电枢电流与磁场电流相互独立,在磁场恒定情况下,通过控制电枢电流可以方便控制电磁转矩,因此,直流调速具有优良的起制动和调速性能。
Compared with the conventional superconducting motor, the armature windings and field coils of the axial-radial flux type fully superconducting synchronous motor ( ARFTFSSM) are HTS. This kind of structure gives a full play in HTS and simplifies the cooling system. 与传统超导电机相比,轴-径向磁通全超导同步电动机的电枢绕组和轴向励磁绕组均采用高温超导线材,不但充分发挥了超导材料的优势,而且简化了电机低温冷却系统。
Because, of its winding core along the radial armature coils placed along the axial air-gap flux produced, which is also known as the axial field motor. 因为它的绕组沿着盘状电枢铁心在径向放置,所以会产生沿轴向的气隙磁通,轴向磁场电机也因此得名。