Research on the single-phase voltage PWM rectifier

CAO Xiyuan; CHEN Rubing

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Research on the single-phase voltage PWM rectifier
Vol. 48, Issue 3, Pages: 380-383(2018)
Published：2018
DOI：
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DOI：

CAO Xiyuan, CHEN Rubing. Research on the single-phase voltage PWM rectifier[J]. Eletric Welding Machine2018, 48(3): 380-383. DOI：

摘要

现代轨道交通电气化中需要高效、高功率、稳定和可靠的整流电源

而整流电源会产生大量谐波导致网侧低功率因数运行和网侧电流波形畸变。分析单相电压型PWM整流器的拓扑电路结构及数学模型

采用一种基于幅相控制(phase and amplitude control-PAC)策略的间接控制方法

该方法是对桥侧交流电压基波分量的幅值和相位进行控制

从而实现对网侧电流的间接控制。仿真验证了该控制策略网侧功率因数达到0.99以上

网侧电流THD低于5%

同时满足能量双向流动和输出电压可调的要求。

Abstract

Modern rail electrification need stable and reliable rectification power supply with high efficiency and high powder

and a lot of harmonic caused by the rectification power supply will result in grid-side low power factor operation and grid-side current waveform distortion. Based on this

the circuit topology structure and mathematical model of the single-phase voltage PWM rectifier were analyzed by using an indirect control method based on the phase and amplitude control-PAC strategy in this paper. The method was to control the amplitude and phase of the fundamental component of the bridge side alternating voltage

and thus the grid-side current was indirect controlled. The simulation verified the grid-side power factor of the control strategy was over 0.99

and the gridside current THD is less than 5%

which can meet the requirements of dual energy flow and adjustable output voltage.