unity power factor

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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Using the technique of active power factor correction, a prototype of flyback converter with unity power factor is proposed.

本文针对传统单相交／直流电源转换电路功因过低的问题，提出结合主动功因修正技术，研制一具有单位功因之返驰式电源转换器。

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Also AC-AC matrix converters hold good potentialities in AC drive systems owing to its unity power factor, without bulky capacitors, and sinusoidal input currents.

交&交矩阵变换器可以实现输入电流波形的正弦化，输入功率因数可以调节，没有大体积的直流电容环节，在交流传动系统中具有良好的应用前景。

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Unity Power Factor Current Source PWM Rectifier Based on Model Predictive Control

基于模型预测控制的单位功率因数电流型PWM整流器

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The simulation results show that unity power factor can be realized.

仿真结果表明，新型三相整流PFC可以实现单位功率因数。

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The analysis of the simulation and experimental results show that the designed solar photovoltaic inverter output current can be guaranteed the unity power factor operation and in phase with the grid voltage, both in theory and experiment, and can succeed in the grid.

实验仿真结果表明，设计的太阳能光伏并网逆变器实现了单位功率因数的运行，输出电流与电网电压同频同相，在理论与实验上满足了并网要求。

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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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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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The features are simple implementation, excellent control performance and unity power factor.

文中分析了基于IVC控制的整流器电路工作原理，理论表明该电路具有电路结构简单、控制性能好、功率因数为1的优点。

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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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Implementation of a Flyback Converter with Unity Power Factor

具单位功因之返驰式电源转换器的实作

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Performance at the unity power factor for a 5 bus power system.

表现在单位功率因数为5总线电源系统.

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This paper introduces such new type of energy-saving equipments as to compensate the power factor to unity, and adjust unbalanced currents to balance condition at the same time.

本文介绍的这种新型节能设备能够把配电网三相不平衡电流调整到平衡状态的同时，把三相的功率因数都补偿到1。

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