Active Power Filter-Based Low-Frequency Ripple Power Suppression of the DC-Link in Railway Traction Systems

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IET Power Electronics Pub Date : 2026-02-09 DOI:10.1049/pel2.70181

Wei Wang, Wei Jiang, Hao Yue, Xiangmin He, Xinke Wang, Wensheng Song

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Abstract

In this article, a novel active power filtering (APF) control method is proposed to suppress ripple power in the DC-link of railway traction systems, including both the inherent second-order ripple of single-phase rectifiers and additional frequency ripples introduced by the pantograph–catenary arc. First, according to the transmission process of ripple power in the traction system, a ripple power decoupling model is established. Then, the model predictive control (MPC) scheme of the APF circuit with low switching frequency is introduced to primarily suppress the second-order ripple voltage. Furthermore, to enhance steady-state performance, these residual ripple voltages on the DC-link are suppressed by compensating the capacitor current reference. Finally, experimental results demonstrate that the proposed control method has higher steady-state accuracy and faster dynamic response compared to the traditional control method at low switching frequency, making it suitable for railway traction systems.

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基于有源功率滤波器的铁路牵引直流链路低频纹波功率抑制

本文提出了一种新的有源功率滤波（APF）控制方法来抑制铁路牵引系统直流链路中的纹波功率，包括单相整流器固有的二阶纹波和受电弓接触网电弧引入的附加频率纹波。首先，根据纹波功率在牵引系统中的传输过程，建立了纹波功率解耦模型。然后，介绍了低开关频率APF电路的模型预测控制（MPC）方案，主要用于抑制二阶纹波电压。此外，为了提高稳态性能，通过补偿电容基准电流来抑制直流链路上的这些残留纹波电压。最后，实验结果表明，在低开关频率下，与传统控制方法相比，所提出的控制方法具有更高的稳态精度和更快的动态响应，适用于铁路牵引系统。

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来源期刊

IET Power Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

5.50

自引率

10.00%

发文量

195

审稿时长

5.1 months

期刊介绍： IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes: Applications: Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances. Technologies: Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies. Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials. Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems. Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques. Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material. Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest. Special Issues. Current Call for papers: Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf