Over-voltage protector can be greatly reduced near lightning flashover rates caused by induction voltage.
过电压保护器可以大大降低附近雷击感应电压导致的闪络率。
Furthermore, when the induction voltage is integrated by the rotation time, integral magnetic field (B0L) is solved by the following equation.
此外,当使用转动时间对感应电压进行积分时,积分磁场(B0L)可由如下的方程来求解。
Can carry out simulation and analysis (RS analysis) on cable's induction voltage and current when the cable is under electromagnetic irradiation under system condition.
能实现线缆在系统环境下受到电磁辐照时的线缆感应电压和电流的仿真分析(RS分析)。
Power failure equipments placed among the area of strong electrical and magnetic fields must produce induction voltage for the cause of electrostatic and electromagnetic effect.
处于强电、磁场中的停电设备,由于电容、互感效应要产生感应电压。
This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near-field difference slope.
本文着重研究了因近场感应电压相位差引起的耦合误差,以及近场天线差斜率变化引起的定向灵敏度的变化;
Based on the static characteristics of induction motor, this paper analyzes the braking function of general voltage vector controlled frequency converter.
本文从感应电机的静态特性出发,分析了通用电压矢量控制变频调速器的制动功能。
Then a voltage vector control scheme for induction motors based on constant stator flux is presented and it's nonlinear limitations are analyzed.
结合定子磁链控制,提出异步电机基于定子磁链幅值恒定的电压矢量控制方案,并对该方案的非线性局限进行了分析。
This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.
在直接转矩控制理论基础上,推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。
Simulation of dynamic voltage stability of induction motor in the context of small disturbances and analyses of the simulation results with its load characteristics.
对小扰动下感应电动机的动态电压稳定性进行了仿真,并运用其负荷特性对仿真结果进行了分析。
Voltage sags due to line faults, transformer energizing and induction motor starting are main interference sources.
输配电线路故障、变压器投运、感应电动机启动是引起电压凹陷的主要原因。
The method is in a constant exchange between the squirrel cage induction motor access SCR as AC voltage controller.
该方法就是在恒定交流鼠笼异步电动机之间接入晶闸管作为交流电压控制器。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程,导出了异步转矩和阻尼转矩系数。
On the basis of mathematical model of AC induction motor in vector control inverter the static measurement of electrical parameters for AC motor is completed using pulse voltage and pulse current.
在矢量控制交流感应电动机数学模型的基础上,采用阶跃电压和阶跃电流的方法实现了对交流电机电气参数的静态检测。
An induction coil that converts current from a battery into the high-voltage current required by spark plugs.
能够把电池转化为电源插座必须的高压电流的感应线圈。
Use is made of that zero-sequence transformer outputs a voltage signal when phase-failure occurs in three-phase induction motor.
这种新方法的基础是零序变压器在三相异步电动机断相时输出一个电压信号。
This paper also investigates the influence of stalling of induction motor to PV curves and voltage static stability, and presents a novel method for selecting the critical point.
同时分析了感应电动机失稳对PV曲线和静态电压稳定的影响,并提出了一种临界点选择的方法。
This paper presents a new compensation method for stator voltage amplitude and DC offset, which can improve the performance of the speed sensor-less vector control of induction motor.
为了提高异步电机无速度传感器矢量控制的低速性能,提出了一种定子电压幅值和直流偏置补偿办法。
On the basis of the mathematical model of AC induction motor in two phase axis system, the static measurement of electrical parameter for AC motor is completed using pulse voltage and pulse current.
根据交流感应电动机在两相静止坐标系上的数学模型,采用脉冲电流法、脉冲电压法实现了对交流电动机电气参数的静态测试。
The limit conditions for the end voltage of the induction machine are derived, according to the asymmetric condition of the machine stator winding.
考虑感应电机定子绕组接线的不对称情况,推导出电机端电压的约束条件。
Harmonics of the power system's voltage cause an increased reading of induction watthour meters.
电力系统电压谐波引起感应电度表读数增加。
An improved rotor flux estimator based on voltage model was proposed for speed sensorless field-oriented vector controlled induction motor drives.
针对感应电机无速度传感器磁场定向控制系统,提出一种基于电压模型的改进转子磁链观测方法。
A new approach using the electric field induction to measure the transient and steady-state zero-module voltage in non-solidly earthed overhead lines is presented.
提出一种通过电场感应获取架空线路小电流接地故障零模电压信号的新方法。
The measures to enhance transient voltage stability of induction generator based wind farm are studied in this paper.
研究了改善异步机风电场暂态电压稳定性的措施。
The paper simulates a three-phase system, analyzes influence of induction motor dynamics on voltage stability, and gives methods to improve voltage stability of induction motor nodes.
对一个三相系统模型进行仿真,分析了感应电机动态负荷特性对系统电压稳定性的影响,并给出改善电机节点电压性能的措施。
The paper points out the characteristics of the design and calculation of double voltage single-phase induction moter with capacitance starting, and analyses the circuit model of the machine.
本文讨论了双电压单相电容起动异步电动机的设计特点,着重分析了该电机起动时的等效电路。
Self-excitation of induction motors caused by output LC filters of variable voltage variable frequency(VVVF) power supplies is harmful both to the motor and the power supply.
变频器LC滤波器中电容器与异步电机之间自激引起的过电压会对逆变器和电机本身产生危害。
This paper describes a simplified model of induction motor based on voltage decoupling control principle.
本文介绍了一种简化模型的感应电机电压解耦控制原理的基础上。
This paper describes a simplified model of induction motor based on voltage decoupling control principle.
本文介绍了一种简化模型的感应电机电压解耦控制原理的基础上。
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