Unconventional High Surge Impedance Loading Transmission Line

为了到2050年在美国实现净零排放，高压输电容量必须到2030年扩大60%，到2050年扩大三倍，以连接更多的风能和太阳能设施以满足需求。这一扩张需要到2030年在输电能力方面投资3600亿美元，到2050年投资2.4万亿美元。除非开发出高容量的架空线路，否则我们将无法在2050年前实现美国的净零排放。为了解决这个问题，我们将(i)通过将相位配置和子导体转变为非传统的布局，在空间内进行几何优化，开发一种革命性的灵活的传输线设计，实现给定的高浪涌阻抗负载（HSIL）设计，以及（ii）创建并引入一种新的传输扩展规划（TEP）框架，其中，鉴于(i)中提供的可能性，在传统的TEP中不起作用的线路参数现在将在这个新框架中作为变量发挥关键作用。这将带来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），本研究计划引入了一个新概念，我们称之为基于智能tep的非常规HSIL线路设计，它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（Virginia Tech）工程多样性促进中心（Center for the Enhancement of Engineering Diversity）合作，开展旨在吸引女性和少数族裔进入电气工程领域的K-12拓展活动。提出的研究是在TEP和非常规HSIL线路设计的联系上提高输电负载能力的先驱。采用符合TEP要求的非常规HSIL生产线设计是该项目的基石。在传统输电线路因自身无功补偿不足而失效的情况下，非常规HSIL设计可以(1)显著提高输电负荷，(2)创造性地用于输配电网络的特高压、高压和中压级别，以及(3)减少对集总无功补偿器的需求。在线路设计方面，将解决一个非常复杂的优化问题，以确定空间中子导体的最佳尺寸，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。该奖项反映了美国国家科学基金会的法定使命，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.