电抗
- reactance;reactive resistance
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[reactance] 交流电路中由电容或电感或两者共同引起的阻抗部分,其单位以欧姆表示
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本文应用优化设计的结果,分析水轮发电机制造成本与纵轴瞬态电抗Xd′的关系。
The relationship between production cost and d-axis transient reactance X_d'for hydrogenerators was analyzed by using the optimal design result .
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LF炉运行电抗模型及供电优化
Operating Reactance Model and Electric Supply Optimization of Ladle Furnace
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电流及转矩角去计算永磁同步电机的同步电抗xd及xq该方法简便,实验结果令人满意。
The method is convenient and its results are satisfactory . angle .
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CO2焊逆变式电源电子电抗的变结构控制仿真研究
Simulation of variable electro-Inductance control for inverter-type CO_2 welder
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本文利用电抗补偿的概念对集成串联体效应振荡器进行电抗补偿,使调谐带宽增加。在C波段,相对调谐带宽达10%以上;
By the use of the concept of reactance compensation , the integrated series bulk effect oscillator , being compensated to increase the tuning bandwidth is reported .
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基于DSP数字振荡器的三相基准正弦信号发生器设计基于电抗性质线判定三点式正弦波振荡器的相位平衡
Design of a Three-phase Reference Sine Wave Signal Generator Based on DSP Digital Oscillator Distinguish tri-port sinusoidal oscillator phasic balance by reactance line
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GLStudio在飞机电抗虚拟地勤维护中的应用
The Application of GL Studio in Electronic Counter Virtual Ground Maintenance System on One Plane
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电抗值,电阻(率)HTS大电流引线的阻性换热器安全性与效率
Safety and efficiency of the resistive heat exchanger for HTS high-rated current leads
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并联电抗器中性点和中性点小电抗XN的绝缘水平主要决定于出现在XN上的最大的工频电压VN。
The insulation level of neutral of shunt reactor and of its neutral reactor X_a is determined mainly by the power frequency voltage arised on this reactance .
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介绍了一种适合用于CO2焊逆变式电源的电子电抗变结构控制方法。
A method of variable electro-inductance control which is suitable for inverter-type CO 2 arc welding power source is introduced in this article .
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用电抗标定方法改善SnO2气敏元件的选择性
Using Reactance Measurement Way to Improve the Selectivity of SnO_2 Gas Sensors
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该功率驱动器/放大器可广泛应用于刷式电机控制、D类音频放大、无功(电抗性)负载、MRI、振动取消等系统中。
The device can be widely used in electronic systems , such as brush-type motor control , Class D switch-mode amplifier , reactive loads , magnetic coils and vibration canceling .
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文中讨论了使VCO线性化的电抗补偿原理并给出了用多节电抗网络补偿的VCO设计实例。
The principle of linearizing VCO by reactance compensation is discussed . The design of the practical VCO is given .
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10kV自饱和电抗型静补投产试验研究
Test and Study of a Static Compensator of the Self-Saturated Reactor Type
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最后,详细地介绍了有限元法计算Powerformer电抗参数的原理,包括二维的稳态电抗、瞬态电抗和超瞬态电抗的求解。
These parameters include the static reactance , transient and sub-transient reactance of Powerformer .
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d-q轴励磁的同步电机气隙磁场与电枢反应电抗的计算
Calculation of air-gap magnetic fields and armature reaction reactances of synchronous machines with d-q axes excitation
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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 .
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500kV自耦变压器中性点装设小电抗的应用研究
Application study of installing small reactors on neutral points of 500 kV autotransformers
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500kV自耦变压器中性点经小电抗接地的过电压与绝缘配合分析
Overvoltage and Insulation Coordination of 500 kV Autotransformer Neutral Grounding through Small Reactance
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将SVC基频等值电抗及电纳表达为其控制角的显函数,推导了SVC线性化牛顿潮流方程;
Base frequency equivalent reactance and susceptance of SVC are expressed as an explicit function of its control angle and Newton-Raphson power flow equations are derived .
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分析了LC滤波器对逆变器输出电流和机端电压的影响及滤波电容与电机之间的自激等问题,并据此提出了电抗参数和电容参数的具体设计原则和方法。
The effects of the LC filter on the motor voltage and inverter output current were analyzed . A parameter design method was developed for the inductor and capacitor designs .
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试焊结果表明,电子电抗变结构控制的CO2焊逆变式电源对减小焊接飞溅和改善焊缝成形有着明显效果。
The experiments demonstrate the results of the inverter-type CO 2 welder , controlled by variable electro-inductance , in decreasing the spatter and improving the bead aspect during short-circuit arc welding are obviously effective .
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SVC通过调节晶闸管的触发角,可以实现电抗值从容性到感性的较大范围内连续调节,可以控制系统的电压、阻尼低频振荡、提高系统的稳定性等。
Thus , it can control the voltage of the power system , damp the low frequency oscillation and enhance the system stability , and so on .
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可控串补基频等效阻抗与TCR基频电抗关系的仿真和动模实验研究
Research of the Numerical Emulation and Dynamic Simulation of the Relation Between the Basic Frequency Equivalent Impedance of the TCSC and Basic Frequency Reactance of the TCR
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相控电抗型无功功率补偿装置(SVS)已为高压、超高压输变电广为采用。SVS工作原理决定了它在运行中不可免地会产生特征和非特征谐波。
According to the principle of SVS , the characteristic and Non-characteristic harmonics will be generated in operation .
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但是CVT内部等值电容与电抗串联可能产生次谐波谐振,引起过电压,会使CVT损坏。
The subharmonic vibration , however , caused by the series connection of equivalent capacity inside CVT with the reactor may lead to over-voltage which might damage CVT .
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基于Ulrich半实验方法、LZ等效电抗模型和Kohin等效膜方法,建立了一种新型的高通光率金属网栅屏蔽效率分析的等效折射率模型。
A novel equivalent refractive index model of high transparency metallic mesh was proposed to calculate its shielding effectiveness accurately .
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另一是在输入腔外接&电抗元件,用来改变输入腔的谐振频率f0和QL,以达到改善速调管增益-频率特性的目的。
The other is that a reactive element is connected with the input cavity to change its resonance frequency f0 and QL and then to improve the gain-frequency characteristics of the klystron .
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经功率调节计算,变耦电抗式可控串补较之于TCSC所需主设备容量大幅度减少。
By power adjusting calculation , thyristor controlled reactance series compensation by adjustable coupling comparing with TCSC , the needed capability of main facilities can be dramatically reduced .
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在永磁同步伺服电机的矢量控制中,电机的调速范围很宽时,电阻、电抗等参数对d,q轴电流的控制产生较大的误差影响,从而影响控制精度和动态响应速度。
In the vector contol of permanent magnet synchronous machine , great errors will be produced in current control of the axis of d and q due to the parameters of the resistance and reactance in a wider speed range .