power factor的例句大全

The traditional rectifier circuits are generally diode uncontrollable rectifier or thyristor phase rectifier circuit, these rectifier circuits are always with high harmonic wave, low power factor, and can polluting the power grid easier.

传统的整流电路一般都是二极管不控整流或者是晶闸管相控整流电路，这种整流电路谐波含量大，功率因数低，易给电网造成污染。

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Automatic Timing Control Algorithm for High Power Factor Reversible Converter

高效可逆变流器的自动定时控制算法

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Research on Thyristor Multi-Phase Converter with Power Factor Improvement

具有功率因数改善的晶闸管多相变流器的研究

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Compared with diode uncontrollable rectifier and phased thyristor rectifier, PWM rectifier has the advantage of symmetrical sinusoidal AC current, unity power factor operation and two-way flow of energy.

与二极管不可控整流或相控晶闸管整流器相比，PWM整流器具有网侧电流对称正弦、单位功率因数运行、能量能够双向流动的优点。

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Constant power factor control for excitation system of the small synchronous generator

小功率发电机励磁系统的恒功率因数控制

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Three-phase voltage type PWM rectifier compared to the conventional diode-controlled rectifier or thyristor phase-controlled rectifier has the advantages of the sine of the net measured current, unity power factor, energy flow in both directions, the system can run in four quadrant.

三相电压型PWM整流器相对于传统的二极管不控整流或者晶闸管相控整流具有网测电流正弦化、单位功率因素、能量双向流动、系统可四象限运行等优点。

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Single meter threshold logic detection checks if the phase voltage, phase current or power factor acquired from one electric meter violates the limits, or if the energy consumption increment follows its own regulation.

单表阀值逻辑检测是检测单个电度表上的相电压、相电流、功率因数是否越限或判断电量增值是否符合自身的规律确定是否有窃电发生；

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The calculation of power factor of series thyristor converter under sequential control

串联晶闸管变流器顺序控制时功率因数的计算

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Compared with the rotating induction motor, the linear induction motor has many advantages, such as: the low noise, the climbing ability, the non-adhesive drive and the small radius through curves. But the low efficiency and the low power factor restrict its development.

与旋转感应电机相比，直线感应电机具有噪声小、爬坡能力强、非粘着驱动和通过曲线半径小等诸多优点，但是效率和功率因数低制约了其发展。

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The third Harmonic Analysis of Power Factor Correction ( PFC) Circuit and Its Restraint

功率因数校正电路中三次谐波分析及其抑制

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Active Power and Power Factor Measurement Under Non-sinusoidal Waveform in Three-phase Circuit

非正弦状态下有功功率和功率因数测试

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Transients in unbalanced three-phase circuit and measurement of power factor

三相不平衡电路的暂态过程及功率因数的测量

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This instrument can measure such parameters as three-phase current, three-phase voltage, active power and power factor of an ESP well.

该仪器可以带电测量电潜泵的三相电流、三相电压、有功功率和功率因数等参数，采用LCD点阵液晶显示屏显示，掉电数据保存，测量精度0.5级。

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Design of Single-switch Three-phase Rectifier with Power Factor Correction

单开关高功率因数三相整流器的设计

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Unity Power Factor Three-Phase Rectifier Based on Voltage Space-Vector Pulse-Width Modulation

基于电压空间矢量调制的单位功率因数三相整流器的研究

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Based on fuzzy control PID, energy saving method of constant power factor is achieved.

在模糊控制PID方法基础上，实现了恒定功率因数节能控制。

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A considerable part of the high-power electrical and electronic equipment is used in the gird now. So the development of three-phase rectifier with high power factor is a hot topic of research in the world.

在现在使用的电网中，相当一部分是中大功率的电力电子设备，因此，现在世界上研究的一大热点就是研制具有高功率因数的三相整流器。

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The traditional thyristor power supply hinder the improvement of quality because of low efficiency, low power factor and low accuracy.

但是传统的可控硅电源效率低、功率因数低、稳定性差，阻碍了单晶硅质量的提高。

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With addition of carbon, the Seebeck coefficient increases a little while the resistivity decreases. As a result, the thermoelectric power factor increases.

当样品掺入C后，Seebeck系数略有增加，电阻率减小，导致功率因子明显提高。

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Analysis and Design of a 500W AC DC Unity Power Factor Converter

500W单位功率因数AC-DC变换器分析与设计

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