MTVN: Multi-Terminal VSC-HVDC Networks - Grid Control

MTVN：多终端 VSC-HVDC 网络 - 电网控制

• 批准号: EP/L021463/1
• 负责人: Mike Barnes
• 金额: $ 68.15万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FL021463%2F1
• 关键词: MTVN; Multi; Terminal; VSC; HVDC

Reliable electricity supply forms a one of the basic requirements of modern 21st Century life. Sustaining this reliable supply is one of the key challenges for the coming decades. A solution is not straight-forward and will have many parts. Integrating offshore wind energy generation as cheaply as possible is one part. Linking our electricity transmission network to the generation and services of other European countries is another part. Reinforcing the onshore electricity network to cope with new power flows, is a further part. Addressing these challenges requires an offshore electricity network, which is controlled to support our existing infrastructure. Such an offshore network disrupts far less of the onshore countryside and living environment than conventional onshore solutions. Enabling this necessary offshore network is the goal of this proposal. The technology needed to achieve such a solution is so-called Voltage-Source High-Voltage DC Transmission (VSC-HVDC): DC connections using converter stations with the latest state-of-the-art, high-voltage semiconductor power processing technology. Only such stations have the required flexibility, compactness offshore and ability to transmit power over long sub-sea cables. However our experience with such technology is limited to point-to-point systems. No small networks (so-called multi-terminal systems) have been built. No large networks (so-called DC grids) have been constructed. Very little research has been published into how to control such systems. There is a dearth of information on how to make large offshore networks 'work'. However many industrial and academic organizations have highlighted the substantial potential benefits in terms of reduced cost, improved reliability and greater functionality which could be offered by such DC offshore networks to our existing electricity infrastructure. This project will undertake the research urgently required to assess the best way to control and mange such networks. Since telecommunications, controller architecture and control are intimately linked, research to assess and include the impact of these constraints will also be incorporated. Candidate networks will be formulated, analyzed and simulated using state-of-the-art models. These models will be improved to include the effects of distributed control and telecommunications effects/Quality of Service. New techniques will be developed that allow similar benefits to 'perfect' (idealized Master) control to be achieved with more realistic distributed hardware systems.The transformative goals of this project are thus:1. To establish how Master and Distributed Master controllers can improve VSC-HVDC-grid performance and offer robust and reliable services to AC onshore networks.2. To investigate advanced controls, and effective exploitation of state-of-the-art and developing telecommunication technologies, to integrate this control with local station control and to overcome conventional operational speed limitations.Better system understanding, models, and improved control will result. This in turn should allow the creation of a cheaper, more effective offshore network.

可靠的电力供应是现代世纪生活的基本要求之一。维持这种可靠的供应是未来几十年的关键挑战之一。一个解决方案不是直截了当的，将有许多部分。尽可能便宜地整合海上风能发电是其中一部分。将我们的电力传输网络与其他欧洲国家的发电和服务联系起来是另一部分。加强陆上电网以科普新的电力流是另一部分。应对这些挑战需要一个离岸电力网络，该网络受到控制，以支持我们现有的基础设施。与传统的陆上解决方案相比，这种海上网络对陆上乡村和生活环境的破坏要小得多。实现这一必要的离岸网络是本提案的目标。实现这种解决方案所需的技术是所谓的电压源高压直流输电（VSC-HVDC）：使用具有最新技术水平的高压半导体功率处理技术的换流站进行直流连接。只有这样的电站才具有所需的灵活性，海上紧凑性和通过长海底电缆传输电力的能力。然而，我们对这种技术的经验仅限于点对点系统。没有建立小型网络（所谓的多终端系统）。没有大型网络（所谓的直流电网）已经建成。关于如何控制这种系统的研究很少。关于如何使大型离岸网络“工作”的信息非常缺乏。然而，许多工业和学术组织都强调了这种直流离岸网络可以为我们现有的电力基础设施提供降低成本，提高可靠性和更大功能方面的巨大潜在好处。该项目将进行迫切需要的研究，以评估控制和管理此类网络的最佳方式。由于电信、控制器结构和控制是密切相关的，因此也将纳入评估和包括这些限制的影响的研究。将使用最先进的模型制定、分析和模拟候选网络。这些模型将得到改进，以包括分布式控制和电信效应/服务质量的影响。新的技术将被开发，允许类似的好处“完美”（理想化的主）控制，以实现更现实的分布式硬件系统。确定主控制器和分布式主控制器如何提高VSC-HVDC电网性能，并为交流陆上网络提供强大可靠的服务。研究先进的控制方法，有效地利用最先进的和正在发展的电信技术，将这种控制方法与本地站控制方法结合起来，克服传统的运行速度限制，从而更好地理解系统、建立模型和改进控制。这反过来又可以建立一个更便宜、更有效的离岸网络。

项目成果

Improved Accuracy Average Value Models of Modular Multilevel Converters

• DOI: 10.1109/tpwrd.2016.2535410
• 发表时间: 2016-05
• 期刊: IEEE Transactions on Power Delivery
• 影响因子: 4.4
• 作者: A. Beddard;C. E. Sheridan;M. Barnes;T. Green

Modelling and Dynamic Analysis of a Power System with VSCHVDC Radial Plus Strategy

采用 VSCHVDC Radial Plus 策略的电力系统建模与动态分析

• DOI: 10.1049/cp.2016.0307
• 发表时间: 2016
• 作者: Shah R

Impact of MTDC grid reconfiguration and control on the dynamics of the GB System

MTDC 电网重构和控制对 GB 系统动态的影响

• 发表时间: 2019
• 作者: R Shah

Secondary Model Predictive Control Architecture for VSC-HVDC Networks Interfacing Wind Power

• DOI: 10.1109/tpwrd.2020.2966325
• 发表时间: 2020-01
• 期刊: IEEE Transactions on Power Delivery
• 影响因子: 4.4
• 作者: Jesús Carmona Sánchez;O. Marjanovic;M. Barnes;Peter R. Green

Impact of Parameter Uncertainty on Power Flow accuracy in multi-terminal systems

多端系统参数不确定性对潮流精度的影响

• DOI: 10.1109/pesgm.2016.7741425
• 发表时间: 2016
• 作者: Beddard A