Examining grid-forming inverters for power restoration using power-hardware in-the-loop and Digital Twins approaches with Real-time Digital Simulation

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS Frontiers in Energy Research Pub Date : 2024-07-30 DOI:10.3389/fenrg.2024.1421969
Man Hin Chow Jason, Kai Yiu Li Ben
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Abstract

The current pursuit of ambitious decarbonization targets is driving a swift transformation of the power grid, marked by a surge in the production of renewable energy. The expansion on application of renewable energy hinges significantly on Distributed Energy Resources but system operators are grappling with challenges due to the opaque nature of DER operations. This opacity introduces considerable risks to grid stability, as the burgeoning volume of DERs may surpass the existing power network’s capacity. In response, the advent of Digital Twins (DT) technology offers a viable remedy by creating virtual counterparts of the physical grid infrastructure that necessitate transmitting minimal data. Digital Twins technology circumvents the hindrances associated with real-time data flows and bolsters the transparency of the system. To foster widespread implementation of DT within the sector, it is imperative to cultivate and validate its application through practical trials. To this end, Power Hardware-in-the-Loop (PHIL) experiments are employed to juxtapose the efficacy of actual power components against that of the DT models. The experiments involve connecting Grid-forming Inverter to a Real-time Digital Simulator (RTDS) for PHIL and DT testing, allowing for an in-depth analysis of the behaviour of photovoltaic inverter. This paper elucidates a platform engineered for immediate simulation tailored to DT and PHIL approaches. This platform is designed to prototype, exhibit, and evaluate grid-forming inverters under different scenarios that are critical for power restoration. With the help of simulation exchange, Perez Model is recommended to add in the DT model to increase the accuracy comparing with the PHIL model. The entire restoration process can therefore be comprehensively represented and analysed.
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利用电力硬件在环和数字孪生方法以及实时数字模拟,检验电网形成逆变器的电力恢复能力
当前,雄心勃勃的去碳化目标正在推动电网迅速转型,其标志是可再生能源生产的激增。可再生能源应用的扩大在很大程度上取决于分布式能源资源,但由于 DER 运行的不透明性,系统运营商正在努力应对各种挑战。这种不透明性给电网稳定性带来了相当大的风险,因为不断增长的 DER 数量可能会超过现有电网的容量。对此,数字孪生(DT)技术的出现提供了一种可行的补救措施,即创建只需传输极少数据的物理电网基础设施的虚拟对应物。数字孪生技术规避了与实时数据流相关的障碍,提高了系统的透明度。为了促进数字孪生技术在行业内的广泛应用,必须通过实际试验来培养和验证其应用。为此,我们采用了电力硬件在环(PHIL)实验,将实际电力组件的功效与 DT 模型的功效进行对比。实验包括将成网逆变器连接到实时数字模拟器(RTDS)上进行 PHIL 和 DT 测试,以便深入分析光伏逆变器的行为。本文阐述了一个专为 DT 和 PHIL 方法量身定制的即时模拟平台。该平台的设计目的是在对电力恢复至关重要的不同情况下,对并网逆变器进行原型设计、展示和评估。在模拟交流的帮助下,Perez 模型建议加入 DT 模型,以提高与 PHIL 模型相比的准确性。因此,整个恢复过程可以得到全面的体现和分析。
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
Frontiers in Energy Research
Frontiers in Energy Research Economics, Econometrics and Finance-Economics and Econometrics
CiteScore
3.90
自引率
11.80%
发文量
1727
审稿时长
12 weeks
期刊介绍: Frontiers in Energy Research makes use of the unique Frontiers platform for open-access publishing and research networking for scientists, which provides an equal opportunity to seek, share and create knowledge. The mission of Frontiers is to place publishing back in the hands of working scientists and to promote an interactive, fair, and efficient review process. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria
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