Unconventional High Surge Impedance Loading Transmission Line

为了到2050年在美国实现净零排放，到2030年，高压输电能力必须扩大60%，到2050年增加两倍，以根据需求连接更多的风能和太阳能设施。这一扩张需要到2030年对输电能力进行3600亿美元的资本投资，到2050年为2.4万亿美元。我们将无法在2050年前实现净零美国，除非开发出高容量的架空线路。为了解决这个问题，我们将（i）通过将相位配置和子导体转换为在空间内几何优化的非常规布置，为输电线路开发革命性和灵活的设计，从而实现给定的高浪涌阻抗负载（HSIL）设计，以及（ii）创建并引入新型输电扩展规划（TEP）框架，其中，鉴于（i）中提供的可能性，在传统TEP中不起作用的线路参数现在将作为变量在这个新框架中起关键作用。这将导致具有成本效益的规划方案和通过传统输电线路无法实现的巨大节省。通过结合（i）和（ii），该研究计划引入了一个新的概念，我们称之为基于智能TEP的非传统HSIL线路设计，这将彻底改变电力输送。综合教育计划培养下一代电力工程师，以保持美国劳动力的竞争活力。我们还与弗吉尼亚理工大学的工程多样性增强中心合作，开展K-12外联活动，旨在吸引女性和少数民族进入电气工程领域。拟议的研究开拓了TEP和非常规HSIL线路设计之间的电力传输负载能力增强。参与非传统HSIL线路设计以满足TEP要求的原始和潜在变革性想法是该项目的基石。在传统输电线路由于自无功补偿的不合理性而失效的情况下，非传统HSIL设计可以（1）显著增加电力传输负载能力，（2）创造性地用于输电和配电网络的特高压、高压和中压水平，以及（3）减少对集中无功补偿器的需求。在线路设计方面，将解决一个非常复杂的优化问题，以确定子导体在空间中的最佳尺寸、数量和位置。另一方面，TEP本身一直是一个复杂的优化问题。在本研究计划中，我们将使传统TEP中固定和预定的线路参数变为变量，从而使其进一步复杂化。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

To achieve net-zero emission in America by 2050, high voltage transmission capacity must expand ~60% by 2030 and triple by 2050 to connect further wind and solar facilities to demand. This expansion requires a capital investment in transmission capacity of $360 billion by 2030 and $2.4 trillion by 2050. We will fail to achieve a net-zero America by 2050 unless high-capacity overhead lines are developed. To tackle this problem, we will (i) develop a revolutionary and flexible design for transmission lines by shifting phase configurations and sub-conductors into unconventional arrangements that are geometrically optimized within the space, enabling a given high surge impedance loading (HSIL) design, and (ii) create and introduce a novel transmission expansion planning (TEP) framework, where, given the possibility provided in (i), line parameters that do not play a role in traditional TEP will now play key roles as variables in this new framework. This will lead to cost-effective planning scenarios and huge savings that cannot be achieved through conventional transmission lines. By combining (i) and (ii), this research plan introduces a new concept that we call Smart TEP-based Unconventional HSIL Line Designs that will revolutionize power delivery. The integrated education plan train the next generation of power engineers needed to maintain the competitive vitality of the U.S. workforce. We also collaborate with the Center for the Enhancement of Engineering Diversity at Virginia Tech on K-12 outreach activities designed to attract women and ethnic minorities to the field of electrical engineering.The proposed research pioneers power transmission loadability enhancement at the nexus of TEP and unconventional HSIL line design. The original and potentially transformative idea of engaging unconventional HSIL line designs that address TEP requirements is the cornerstone of this project. Where conventional transmission lines fail due to insufficiencies in their self-reactive power compensation, unconventional HSIL designs can (1) significantly increase power transmission loadability, (2) be creatively used for extra-high voltage, high voltage, and medium voltage levels for both transmission and distribution networks, and (3) decrease the need for lumped reactive power compensators. On the line design side, a very complex optimization problem will be solved to determine the optimal size, number, and location of sub-conductors in the space. Another aspect is that TEP itself has always been a complex optimization problem. In this research plan, we will complicate it further by making the line parameters that were fixed and predetermined in traditional TEP now be variables.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.