excitation current
励磁电流;激磁电流
2026-05-06 05:15 浏览次数 22
励磁电流;激磁电流
if the excitation current is too great, adopting dc machine excitation would require more collecting rings.
如果励磁电流太大,采用直流机励磁则会引起集电环的对数增多。
the development of brushless excitation is restricted by the difficulty of measuring excitation current of synchronous motor.
无刷同步电机的励磁系统对励磁电流的测量是制约该励磁方式发展的一大障碍。
the dsp realizes functions of sampling, pi regulation, communication and so on to digitally control the excitation current of arc-suppression coil with magnetic bias.
dsp主要完成采样、pi调节和通信等,实现偏磁式消弧线圈励磁电流的数字控制。
a new method for reducing core loss and excitation current in transformers that utilizes the fundamental principles of third-harmonic flux modulation is proposed in this paper.
本文对变压器节能提出了一个崭新的观点,即通过三次谐波磁场调制机理来降低变压器的铁耗和励磁电流。
the excitation current which bring about the optimum magnetic…
确定了最佳磁化强度时的激励电流。
influence of dc magnetic bias on excitation current of transformer;
造成振动的直接原因就是变压器的直流偏磁现象。
the performance of electrically excited synchronous motor(esm) drive is directly influenced by the rotor excitation current control strategy of esm.
目前电励磁同步电机直接转矩控制研究在中国还是一个空白,其转子上存在阻尼绕组,必然对电机的动态行为产生影响。
the result show that the motor excitation current and torque current have been decoupled. the motor dynamic response fast, smooth operation, and has good steady-state performance.
试验结果表明,电动机的励磁电流和转矩电流解耦成功,电动机动态响应快,运行平稳、具有较好的稳态性能。
generator constant excitation current pid is achieved by manual mode.
通过自动模式达到发电机恒机端电压pid调节。
meanwhile, a slight ac component was added to excitation current to decoupling speed estimation and rotor resistance.
同时,为了使转速估计和转子电阻的辨识解耦,在励磁电流处叠加了小幅交流分量。
the curve of the relation between the amplitude of the ultrasonic wave and the excitation current of the electromagnetic field was obtained by experiments.
为此设计了确定最佳磁化强度的试验方案,通过试验得到超声波幅值随电磁场激励电流的变化曲线。
second power level: if the sensor is resistive the designer must ensure that the self-heating effects of excitation current flowing through the transducer do not adversely effect the measured results.
其次,功率水平:如果传感器有阻力,这个设计师必须保证励磁电流的自动加热作用流经这个传感器负面影响不影响被测量的结果。
linear functions of the pi regulator output and the trigger angle simplify the control program and make the excitation current follow the set current quickly.
通过建立pi输出和控制角的线性化函数,简化控制程序,使励磁电流快速跟蹤给定电流。
analysis to the working principle of the inductor motor and pi regulation & pwm methods make excitation current well controlled so as to get stable voltage.
通过分析感应子发电机的工作原理,采用pi调节和脉宽调整技术相结合的方法来调整其励磁电流,从而使其输出电压稳定。
in order to precision controlled, the linear relationship be- tween the magnetic field gradient and the coil excitation current has been achieved.
结果表明,由于磁场梯度与线圈的激励电流成线性关系,因而能进行精确的控制。
in this paper, the equivalent circuit of typical permanent magnet actuator is analyzed, and the excitation current wave is optimized under definite redundancy and demanded minimum impulse power.
首先,通过分析典型永磁操动系统等效电路,在一定的冗余下优化励磁电流波形,使所需的脉沖功率最小;
then , it can be better to control excitation current real-timely and raise the stability of generator voltage that excitation current is measured.
而对励磁电流的检测则是能够更好的实现励磁电流的实时控制,提高机端电压的稳定。
this thesis uses the linearity relation of output torque and excitation current to control the tension.
本文利用磁粉制动器输出转矩与激磁电流成线性这一特性来实现对张力的恒值控制。
when measuring temperature using an rtd, the excitation current itself produces i 2r, or joule heating, producing an indicated temperature somewhat higher than the temperature being measured.
当测量温度中使用电阻式温度检测器,励磁电流本身这个温度产生i2r,或焦耳热化,产生一个比指示温度稍微高一点的温度标準。
in this paper the causes of huge excitation current are analysed and the effective measures taken to resolve this problem are also presented.
作者分析了产生这巨大励磁涌流的原因,后经采取有效措施解决了这一实际问题。
the algorithm of the s acceleration & deceleration curve and the excitation current adaptive controller.
s加减速曲线算法及励磁电流自适应控制器。
in operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration.
在操作中,微弱电流通过元件,电压与电阻正比,然后测量并转换为温度校正的组件。
a mixing frequency excitation current source is designed according to the analysis of requirements of the bioelectric impedance measuring system.
通过分析生物阻抗测量系统的需求,设计了一种应用于生物阻抗测量的混频激励电流源。
the related instruments are arranged in the front. the generator terminal voltage meter , pmg terminal voltage meter and excitation current meter are installed generally.
相关仪表分部于面板上,通常装有发电机机端电压表,永磁机机端电压表及励磁电流表。