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现代高功率因数电子镇流器结构中普遍采用功率因数校正（PFC）和半桥逆变谐振电路拓扑。 The power factor correction (PFC) and half-bridge inverter circuit topology are commonly used in modern high power factor electronic ballasts. | ||
控制技术是影响整流器功率因数的关键因素之一。 One of the key factors of affecting power factor of rectifiers is control technique. | ||
功率因数是输配电系统的一项重要的经济指标。 Power Factor is an important economic indicator in transmission and distribution power system. | ||
它可以实现单位功率因数和低电流畸变。 It can achieve unity power factor and low current distortion. | ||
充油套管应带有用于进行功率因数试验的接插头。 Oil filled bushing should have plugs for test of power factor. | ||
在模糊控制PID方法基础上，实现了恒定功率因数节能控制。 Based on fuzzy control PID, energy saving method of constant power factor is achieved. | ||
本文讨论了脉宽调制(PWM)逆变式弧焊电源的功率因数。 The power factor of PWM are welding power source has been discussed in this paper. | ||
从异步电机的稳态等效电路出发，推导出了功率因数与转差角频率之间的关系。 Based on equivalent circuit of asynchronous motor in stable state, the relationship between power factor and slip Angle frequency was deduced. | ||
本文论述了可控硅逆变器逆变角影响串级调速装置功率因数的基本原理。 This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device. | ||
多重化整流是电力电子变换设备减小对电网谐波干扰、提高设备功率因数所采用的重要方法。 Multiplex rectifier is an important component for power electronics equipments to implement reducing the harmonic interference to electric network and improving power factor. | ||
