Impact on Renewable Energy Sources on Harmonic Levels in the Future UK Power Grid: Modelling, Assessment and Mitigating Solutions
可再生能源对未来英国电网谐波水平的影响:建模、评估和缓解解决方案
基本信息
- 批准号:EP/T013206/1
- 负责人:
- 金额:$ 31.08万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2020
- 资助国家:英国
- 起止时间:2020 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The UK is committed to reducing its greenhouse gas emissions by at least 80% by 2050, relative to 1990 levels. Meeting this target will require a significant shift in the way energy is used (for example, through electrification of heat and transport) and generated. To reduce our dependency on fossil fuels, significant levels of Renewable Energy Sources (RESs) will need to be integrated into the power grid. RESs include energy sources that do not rely on fossil fuels and nuclear energy, such as solar, wind, tidal and wave. Some sources of renewable energy have been successfully incorporated (for example, pumped-hydro), and they are generally not classified as 'RESs' as this term refers to devices that are connected to the grid by means of power converters. While the benefits of RESs are undisputable and their installation should be facilitated, the integration of large amounts of these devices requires the development of new paradigms and methods to maintain a reliable and safe power system. RESs have certain characteristics that differentiate them from traditional sources: they are less controllable than traditional energy sources, they cause unintended power flow patterns, and they impact voltage and current waveforms and the overall power quality of electricity. This proposal will focus on the study of harmonic propagation in the UK power grid due to RESs. Harmonics are current and voltage components at frequencies multiple of the fundamental, and they are generated by the operation of the power converters. While low harmonic levels are tolerated and do not impact grid operation, increasing harmonic levels have detrimental effects including: increased losses, reduced efficiency, misoperation and reduced lifetime of equipment, and nuisance protection tripping. While the costs of harmonics are not easy to determine because of their long-term effect, it has become accepted by the power grid operators and users that increasing harmonic levels are detrimental for efficient grid operation. More importantly, they may compromise the future integration of RESs. This proposal aims at assessing the harmonic impact of RESs in the future power grid. Carrying out this assessment requires the development of accurate models of both RESs and of the power system. At the same time, these models requires some form of simplification because of the number of components involved. Previous research has focused on either detailed power converter models, or the use of a large power system model with simplified converter representation. This NIA aims at combining both aspects in a model which is able to represent correctly harmonic generation from RESs, the transfer of harmonics between voltage levels, and the representation of statistical variations of harmonic levels in the system, for varying levels of penetration of RESs. This research will involve close collaboration with two industrial partners, National Grid and Measurable Ltd, and with the University of Texas at Austin. The impact of this research will be widespread: the models developed will help the academic community in understanding the best approaches to study harmonic behaviour of large energy systems. This work will assist the system operator in assessing the impact of new RESs on the power system. Furthermore, this research will inform the future developments of power quality standards and of harmonic mitigating solutions. The ultimate goal of this project is to minimise the occurrence of harmonic problems in the future power grid, allowing for a smooth and clean integration of increasing amounts of RESs, not only in the UK, but on a global scale. Furthermore, it will benefit the UK as a whole in terms of maintaining the operations and efficiency of this ubiquitous infrastructure, whilst helping the government to meet targets for reducing CO2 emissions.
英国承诺到2050年将温室气体排放量与1990年相比减少至少80%。要实现这一目标,就需要在能源的使用(例如,通过供热和运输的电气化)和产生方式上作出重大转变。为了减少我们对化石燃料的依赖,需要将大量的可再生能源(RESs)整合到电网中。可再生能源包括不依赖化石燃料和核能的能源,如太阳能、风能、潮汐能和波浪能。一些可再生能源已被成功地纳入(例如,抽水蓄能),它们通常不被归类为“RES”,因为这个术语是指通过电力转换器连接到电网的设备。虽然RES的好处是无可争议的,并且应该促进它们的安装,但大量这些设备的集成需要开发新的范例和方法来维护可靠和安全的电力系统。可再生能源具有某些区别于传统能源的特征:它们比传统能源更难控制,它们会导致意外的功率流模式,它们会影响电压和电流波形以及电力的整体电能质量。该提案将重点研究由于RES在英国电网中的谐波传播。谐波是频率为基波倍数的电流和电压分量,它们由功率转换器的操作产生。虽然低谐波水平是可以容忍的,不会影响电网运行,但谐波水平的增加会产生不利影响,包括:损耗增加、效率降低、误操作和设备寿命缩短以及滋扰保护跳闸。虽然谐波的成本由于其长期影响而不容易确定,但电网运营商和用户已经接受增加谐波水平对高效电网运行有害的观点。更重要的是,它们可能会损害可再生能源系统未来的整合。该建议旨在评估可再生能源在未来电网中的谐波影响。进行这一评估需要发展的精确模型的可再生能源系统和电力系统。同时,由于涉及的组件数量,这些模型需要某种形式的简化。以前的研究集中在详细的功率转换器模型,或使用一个大的电力系统模型与简化的转换器表示。该NIA旨在将这两个方面结合在一个模型中,该模型能够正确地表示从RES产生的谐波、电压电平之间的谐波传输以及系统中谐波电平的统计变化的表示,以用于不同的RES渗透水平。这项研究将涉及与两个工业合作伙伴,国家电网和可测量有限公司,并与得克萨斯大学奥斯汀分校的密切合作。这项研究的影响将是广泛的:开发的模型将有助于学术界了解研究大型能源系统谐波行为的最佳方法。这项工作将有助于系统运营商评估新的可再生能源系统对电力系统的影响。此外,这项研究将告知未来的发展,电力质量标准和谐波缓解解决方案。该项目的最终目标是最大限度地减少未来电网中谐波问题的发生,不仅在英国,而且在全球范围内,使越来越多的可再生能源系统平稳、清洁地整合在一起。此外,它将使整个英国受益,以维持这一无处不在的基础设施的运营和效率,同时帮助政府实现减少二氧化碳排放的目标。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Comparison between Ideal and Frequency-dependent Norton Equivalent Model of Inverter-Based Resources for Harmonic Studies
用于谐波研究的基于逆变器的资源的理想模型和频率相关诺顿等效模型的比较
- DOI:10.1109/isgtasia49270.2021.9715634
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Deng Z
- 通讯作者:Deng Z
Voltage Unbalance Mitigation by Novel Control of BESS Single-phase Inverters
通过 BESS 单相逆变器的新型控制来缓解电压不平衡
- DOI:10.1109/isgt-europe47291.2020.9248770
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:Mexis I
- 通讯作者:Mexis I
MITIGATION OF VOLTAGE UNBALACE IN RURAL LOW VOLTAGE NETWORKS USING SINGLE-PHASE BESS INVERTERS
使用单相 BESS 逆变器缓解农村低压网络中的电压不平衡
- DOI:10.1049/icp.2021.1998
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Mexis I
- 通讯作者:Mexis I
Data-Driven Energy Storage Scheduling to Minimise Peak Demand on Distribution Systems with PV Generation
- DOI:10.3390/en14123453
- 发表时间:2021-06
- 期刊:
- 影响因子:3.2
- 作者:Eugenio Borghini;C. Giannetti;J. Flynn;G. Todeschini
- 通讯作者:Eugenio Borghini;C. Giannetti;J. Flynn;G. Todeschini
Simulation and Modeling Methodologies, Technologies and Applications - International Online Conference (SIMULTECH 2021)
仿真和建模方法、技术和应用 - 国际在线会议 (SIMULTECH 2021)
- DOI:10.1007/978-3-031-23149-0_4
- 发表时间:2023
- 期刊:
- 影响因子:0
- 作者:Deng Z
- 通讯作者:Deng Z
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Grazia Todeschini其他文献
Evaluation of a HVDC Interconnection to Improve the Voltage Stability of the Nigerian Transmission Network
提高尼日利亚输电网络电压稳定性的 HVDC 互连评估
- DOI:
10.37256/jeee.3120243799 - 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
O. G. Olasunkanmi;Andrew R. Barron;Alvin Orbaek White;Grazia Todeschini - 通讯作者:
Grazia Todeschini
Grazia Todeschini的其他文献
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{{ truncateString('Grazia Todeschini', 18)}}的其他基金
Impact on Renewable Energy Sources on Harmonic Levels in the Future UK Power Grid: Modelling, Assessment and Mitigating Solutions
可再生能源对未来英国电网谐波水平的影响:建模、评估和缓解解决方案
- 批准号:
EP/T013206/2 - 财政年份:2021
- 资助金额:
$ 31.08万 - 项目类别:
Research Grant
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