励磁绕组

采用多回路数学模型完成了汽轮发电机励磁绕组不同匝数、不同线圈短路仿真和故障特征量分析，并进行了实验研究。

Simulation analysis and experimental research of the turbine generator with field winding different turn number and different coils short circuits were achieved .

高温超导励磁绕组由环型双扁平线圈构成，它是用Bi-2223高温超导体带绕制，运行温度为35K左右。

The HTS field winding consists of racetrack type double pancake coils wound with Bi-2223 HTS tapes operated at about 30 K.

TRT发电机励磁绕组绝缘降低故障的处理

Treatment of insulation quality lowering of TRT generator excitation winding

主电路为发电机机端电压经过三相不控整流电路、BUCK斩波电路、单相逆变电路、高频变压器降压电路、单相不控整流电路以及滤波电路后输出给励磁绕组。

The main circuit is made up of three-phase uncontrolled rectifier , BUCK chopping circuit , single-phase inverter , high-frequency transformer , single-phase uncontrolled rectifier and filter .

结果表明：一般情况下，桥式整流方式下的自激量要比半波方式下的小，但在主发电机励磁绕组电阻RL较大时，即电抗负载因数较小时却不一定。

It is shown in the result that the self-excitation in half-wave-rectifier is larger than that in full-wave-rectifier unless the reactance-load factor XR very small .

调节器由三极管BG和场效应管V-MOS组成开关电路。调节励磁绕组LQ的励磁电压来调节输出电压。

The adjuster switch circuit is composed of BG and VMOS , regulating the voltage of LQ to give output voltage .

含阻尼绕组同步发电机电磁力矩系数的传统算式忽略直轴阻尼绕组与励磁绕组的互感，且不考虑自动励磁调节（AVR）的作用。

In traditional formulas of electromagnetic torque coefficients for the damped synchronous generator , the mutual inductance between d-axis damping winding and excitation winding is neg-lected and the effect of AVR ( Automatic Voltage Regulator ) is not considered .

电磁式双凸极电机（DSEM）具有开关磁阻电机结构简单、可靠性高等优点，同时励磁绕组的增加使得励磁磁场可控，发电调压控制简单，能够实现故障灭磁。

With its prominent advantages of simple structure , high reliability , controllable excitation , easy regulation of the output voltage and de-excitation under fault , the Doubly Salient Electro-magnet motor ( DSEM ) has the potential to be the starter / generator .

转子空内冷励磁绕组的损耗和漏感计算

Calculation on Losses and Slot Leakage Inductance for Air-cooled Excitation Winding

发电机转子励磁绕组接地保护

The earth - fault protection for generator rotor field coil

模拟同步发电机励磁绕组时间常数的补偿

Compensation of time constant for excitation winding in a synchronous generator simulator

因此，励磁绕组和控制绕组应该有一定的相位差。

For this , the exciting and control windings should be phase-shifted .

励磁绕组两点接地故障对横联差动保护的干扰分析

Disturbing Analysis of Two-Point Ground Faults of Exciting Windings for Transverse Differential Protection

小型凸极同步发电机励磁绕组温升的调整设计旋转变压器的新型绕组

Adjustment Design on Temperature Rise of Field Winding for Small Salient-pole Synchronous Generator

电机励磁绕组自动转换控制线路的设计

Control circuit design for motor excitation windings auto-conversion

通过调节辅助电励磁绕组的励磁电流，可以方便地调节气隙磁场的大小，发电机输出电压可调；

Because the aided electrical excitation current can be adjusted , the output voltage is adjustable .

当建立同步电机完整的模型时，需计及励磁绕组与阻尼绕组之间的互漏感。

Study on parameter test system of rare earth permanent magnet synchronous machines based on computer ;

两台励磁绕组相互串联的六相电机并联运行的暂态分析

A Transient Analysis of Parallel Operation of Two 6-phase Generators with Field Windings Connected in Series

发电机励磁绕组电流中也出现相应的谐波分量，即谐波电枢反应。

Because of the harmonic reaction , the exciting current of the generator also has harmonic current .

直轴瞬变电抗和直轴超瞬变电抗的计算运用了场路耦合法，计及了励磁绕组端部漏抗对计算结果的影响。

The coupled field-circuit method is used to calculate the direct-axis transient reactance and the direct-axis sub-transient reactance .

由于辅助电励磁绕组安放在定子侧，发电机结构上仍然是无刷的，可靠性高；

It still has no brushes and high reliability because the aided excitation winding is set on stator .

建立了汽轮发电机空载和并网时励磁绕组匝间短路的多回路数学模型。

The multi-loop mathematical model of the turbine generator with field winding inter-turn short circuits under no-load and grid was established .

该结构类型的电机上既有永磁体又有电励磁绕组，两个磁动势源同时存在。

This structure has not only magnet but also electric excitation winding . It means that the generator has two MMF sources .

为了便于模拟不同类型的失磁故障，将其励磁绕组添加为外电路并由开关控制。

In order to simulate different kinds of loss of excitation failures , excitation windings are setted as external circuit and controlled by switch .

电流通过其在电机中产生主磁通的绕组称为励磁绕组。

The winding through which a current is passed to produce the primary source of flux in the machine is called the field winding .

磁共振成像对心内膜心肌纤维化症的诊断价值轴径向气隙混合磁路多边耦合电机轴向励磁绕组的反电势及其位置传感器机理

Mri : its value in diagnosing EMF position sensor principle and axial exciting coil EMF of axial and racial air gap hybrid magnet circuit multi-coupling motor

其中整流绕组经整流桥向直流负载供电，而励磁绕组提供无功功率，以保持负载时整流绕组端电压不变。

And the other , termed the 3-phase compensating winding , provides reactive current to maintain the output voltage of the DC winding terminals varied with load .

乒乓式励磁绕组接地保护由于自身的优点而被广泛应用，但是该保护在应用中存在2个问题：一是由于切换电路中元件参数选取不合适，会对保护精度造成较大影响；

Ping-Pong type protection for ground fault in field winding is widely used for its merits . However , there are still some problems in protection applications .

当发电机在不同输入功率的情况下，对其进行了励磁绕组开路、直接短路和经灭磁电阻短路等失磁故障的研究。

Then under different input power , the loss of excitation failures , such as direct short-circuit , open-circuit of excitation windings and short-circuit with de-excitation resistance , are simulated .

本文提出了一种解决永磁发电机电压调节问题的方法&利用永磁体和电励磁绕组组合励磁。

In this paper , a new way that resolves the problem of regulating voltage by use of the combined excitation of permanent magnet and electrical excitation windings is presented .