Hybrid-paralleled power-factor-correction system for high-power equipment harmonic suppression

IF 1.3 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Power Electronics Pub Date : 2024-04-12 DOI:10.1007/s43236-024-00807-3
Tiansheng Zhu, Guiping Du, Zhuofeng Deng, Yanxiong Lei
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Abstract

This paper proposes a novel power-factor-correction system for the harmonic suppression of high-power equipment. It connects a PWM (pulse width modulation) rectifier and several uncontrolled diode rectifier units in parallel. The PWM rectifier is not connected to the load, and the power of the IGBT device is lower than that of the traditional PWM rectifier. The diode rectifier unit is connected in parallel without the loop current, which is convenient for expansion. The diode rectifier unit can still work when the IGBT fails, which enables high reliability. When compared to conventional APFs (active power filters), the proposed system only controls the grid current as a sinusoidal wave at the power frequency, without tracking harmonics, which makes the control simpler and the current THD (total harmonic distortion) lower. In this paper, the operating modes of the proposed parallel system are analyzed and the mathematical model of the circuit is derived. In addition, the corresponding control strategy is proposed and the parameters of the LCL are designed. Finally, simulations were carried out to demonstrate the superiority of the proposed parallel system when compared with the traditional APF, and a 60 kW experimental platform was built to demonstrate the feasibility of the proposed scheme.

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用于抑制大功率设备谐波的混合并联功率因数校正系统
本文提出了一种用于抑制大功率设备谐波的新型功率因数校正系统。它将一个 PWM(脉宽调制)整流器和几个不受控的二极管整流器并联。PWM 整流器不连接负载,IGBT 设备的功率低于传统的 PWM 整流器。二极管整流器单元并联时没有环流,便于扩展。当 IGBT 发生故障时,二极管整流单元仍能工作,因此可靠性高。与传统的有源电力滤波器(APF)相比,本文提出的系统只将电网电流控制为工频正弦波,不跟踪谐波,从而使控制更简单,电流 THD(总谐波失真)更低。本文分析了拟议并联系统的工作模式,并推导出电路的数学模型。此外,还提出了相应的控制策略,并设计了 LCL 的参数。最后,通过仿真证明了与传统 APF 相比,所提并联系统的优越性,并搭建了一个 60 kW 的实验平台,以证明所提方案的可行性。
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来源期刊
Journal of Power Electronics
Journal of Power Electronics 工程技术-工程:电子与电气
CiteScore
2.30
自引率
21.40%
发文量
195
审稿时长
3.6 months
期刊介绍: The scope of Journal of Power Electronics includes all issues in the field of Power Electronics. Included are techniques for power converters, adjustable speed drives, renewable energy, power quality and utility applications, analysis, modeling and control, power devices and components, power electronics education, and other application.
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