The exciting current control circuit also can modulate frequency and modulate amplitude for the pulsed current.
激励电流控制电路产生激励线圈的脉冲电流，并对脉冲电流进行调频和调幅控制。
Benefiting from the absence of the exciting current and the excitation loss, the efficiency and the power density have increased.
又因无需励磁电流，省去了励磁损耗，提高了电机的效率和功率密度。
The optimum design was realized associated with the relationship among coil turns, exciting current and electromagnetic attraction force.
结合线圈圈数、激励电流与电磁吸力之间的关系，完成了电磁系统的优化设计。
Utilizing the linearity peculiarity of the exciting current of magnetic powder brake and brake moment, the closed loop control system is designed.
利用磁粉制动器的励磁电流与制动力矩成线性关系这一特性，设计了闭环张力控制系统。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
In this paper, a hardware system based on DSP is designed to measure the exciting current of rotating rectifier under the normal or faulty conditions.
本文设计了一个DSP系统解决了旋转整流器正常及故障下励磁电流测量问题， 实现了整流二极管故障下报警，故障显示以及严重情况下切机功能。
The rule of magnetic induction density, induced eddy current and electromagnetic force varied with high frequency sine exciting current was investigated.
利用瞬态分析方法，研究高频正弦激励电流密度在结晶器内钢液中产生的磁感应强度、感应电流及电磁力的变化规律。
The indirect temperature measurement algorithm based on exciting current for generator rotor has been researched, and relative factors and physical equations are analyzed.
研究了基于励磁电流的发电机转子温度间接测量算法，分析了相关因素及其物理方程。
The control way of system has 3-patterns: exciting regulator of constant terminal voltage, constant exciting current regulator and exciting regulator of constant power factor.
控制方式具有恒机端电压励磁调节、恒励磁电流调节、恒功率因数励磁三种。
The simulation results show that the power factor approaches to 1 (0.99) at stable state, and the exciting current control method and switches table in four quadrants are correct.
仿真结果表明在稳态时功率因数接近于1（0.99），验证了给出的励磁电流的控制方法、四象限开关表的正确性。
D. C. mutual inductor was used in measuring and close-loop control of the exciting current of new high-gradient high-intensity magnetic separator and achieved satisfactory results.
在新型高梯度强磁设备中，采用直流电流互感器对其激磁电流进行测量与闭环控制可获得满意的效果。
In order to improve its dynamic and static performance of loading, adaptive control is used to change its exciting current for achieving accurate simulation of the actual working load.
为了提高电涡流测功器加载的动、静态性能，采用自适应控制来改变电涡流测功器的励磁电流，从而可以精确模拟实际工况加载。
This paper analyzes the forming process of unloading voltage and the relations among unloading voltage, phase electromotive force, exciting current and rotational speed in art alternator.
分析了汽车发电机抛负载电压的形成过程及其与发电机的相电动势、激磁电流和转速之间的关系。
Because the dynamic character of PMA is affected by permanent magnet and exciting current, in this paper, new mathematic model and equation are established and the calculation result is analyzed.
在动态计算中本文根据永磁和激磁电流共同作用这一特点，建立了相应的数学模型，给出了动态微分方程组的求解方法，并对动态过程进行了分析。
The core loss is an important criterion of its performance. If the core loss is too large, it will be heated and the efficiency will be decreased when add the exciting current to the stator coils.
铁损是评判电机铁芯性能的一个重要指标，如果铁损太大，在定子绕组中加励磁电流后则会产生发热和效率下降等不良现象。
Synchronous motor excitated magnet by direct current can make output mechanism specialities matched load specialities by means of adjusting exciting current to change magnetic field and power factor.
这是因为电励磁的同步电动机可通过调节励磁电流来改变其磁场和功率因数，使输出的机械特性与负载特性相匹配。
Synchronous motor excitated magnet by direct current can make output mechanism specialities matched load specialities by means of adjusting exciting current to change magnetic field and power factor.
这是因为电励磁的同步电动机可通过调节励磁电流来改变其磁场和功率因数，使输出的机械特性与负载特性相匹配。
应用推荐