Cascading failure of a simplified transmission tower-line system

有效和高效的能源分配在保持加拿大人良好的生活质量方面发挥着至关重要的作用。在马尼托巴，主要能源来自水力发电厂，大部分能源的分配是通过使用输电塔线系统。这些建筑必须能经受住该省恶劣天气的考验。单塔的故障会导致相邻几个塔的级联损坏，不仅会导致用户服务中断，而且会造成经济损失。过去对输电塔结构的研究强调的是塔本身或电缆的行为。很少有研究项目将输电塔线作为一个整体来考虑。这可能是由于传输塔的详细建模需要大量的计算工作。输电塔线系统的连锁故障除了对断线影响的研究外，过去没有得到足够的重视。本计画的目的是得到一个简化的输电塔线系统，以应用于输电塔线系统连锁故障的研究。研究结果将有助于设计人员了解输电塔线系统的级联行为，以便他们能够更好地优化新输电线路的设计，并评估现有线路的故障风险。

Effective and efficient energy distribution plays a vital role in maintaining a good quality of life for Canadians. In Manitoba, the main source of energy is from hydro-electric plants and the distribution of energy is, for the most part, through the use of transmission tower-line systems. These structures must withstand exposure to the province's harsh weather. Failure of a single tower can cause cascading damage to several adjacent towers and result in not only the disruption of service to the users but also economic losses. Past studies on transmission tower structures have emphasised either the tower itself or the behaviour of the cables. Not many research projects have considered the transmission tower-line as a whole. This may be due to the fact that detailed modeling of a transmission tower requires a vast amount of computational effort. Apart from the studies of the effects of a broken conductor, cascading failure of a transmission tower-line system has not received sufficient attention in the past. The aim of the present project is to attain a simplified transmission tower-line system that can be used in the investigation of cascading failure of transmission tower-line systems. The results of the study will help designers to understand cascading behaviour of transmission tower-line systems so that they are better able to optimize the design of new transmission lines and assess the risk of failure on existing lines.