Investigation of resonance between HVDC-MMC link and AC network

IF 4.2 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-09-12 DOI:10.1016/j.epsr.2025.112231

Iva Radecic , Bozidar Filipovic-Grcic , Paul Akiki , Alain Xémard , Bruno Jurisic

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引用次数: 0

Abstract

HVDC networks offer several advantages over traditional HVAC systems, particularly for long-distance power transmission and integration of renewable energy sources, such as reduced losses and enhanced stability and control, but also increase the risk of oscillations. This study investigates electrical resonant phenomena associated with HVDC stations through numerical EMT simulations. The findings indicate that electrical resonance is primarily pronounced in weak networks with long cables, as confirmed by the Nyquist criterion applied to frequency responses. Two real cases were successfully simulated in the time domain by introducing network changes, such as temporary faults and alterations in network’s power strength, to activate the identified resonances. Notably, in a strong network with short cables, electrical resonance occurred alongside interactions between the network and the converter's protection system. The analysis of voltage waveforms revealed that the amplitude of the induced resonant harmonic dissipates quickly, indicating sufficient damping in the network configuration. Furthermore, the study confirmed the network's sensitivity to changes in converter parameters modeled using available MMC model.

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HVDC-MMC链路与交流网络谐振的研究

与传统的HVAC系统相比，HVDC网络提供了几个优势，特别是对于长距离电力传输和可再生能源的集成，例如减少损耗和增强稳定性和控制，但也增加了振荡的风险。本研究通过EMT数值模拟研究了高压直流电站的电谐振现象。研究结果表明，电共振主要发生在具有长电缆的弱网络中，这一点得到了应用于频率响应的奈奎斯特准则的证实。通过引入网络的临时故障和网络功率强度的变化来激活识别的共振，在时域上成功地模拟了两个实际案例。值得注意的是，在具有短电缆的强网络中，随着网络和变流器保护系统之间的相互作用，电谐振发生了。电压波形分析表明，感应谐振谐波的幅值耗散迅速，表明在网络结构中有足够的阻尼。此外，利用现有的MMC模型，研究证实了网络对转炉参数变化的敏感性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.