SGER: Electric Utility Damage from Hurricane Katrina

摘要首席调查员将重点评估飓风卡特里娜事件期间墨西哥湾沿岸电力输送系统造成的损害。在这种背景下，电力输送系统由发电、输电和配电设施组成。将根据现有数据评估长时间停电对其他生命线功能的影响，如紧急服务、保健设施、水处理和供应、运输系统和电信。被视为关键的具体任务包括但不限于：就结构工程修理和设计问题与当地公用事业官员进行约谈；收集公用事业人员进行修理时每个系统各种部件的实地损坏数据(必要时也可在没有工作人员的情况下进行)；收集有关电力供应系统各子系统恢复过程的数据；处理任何与地理信息系统有关的数据和对新的或改建的系统进行地理编码；以及通过会议记录、研讨会和档案期刊文章传播结果。将使用影响图和其他系统工程工具对系统故障和恢复以及其他生命线与电力输送的任何重大相互作用进行建模。将审查的具体问题如下：可以进行哪些结构设计修改以简化配电和输电系统的维修？某些结构部件是否比其他部件更容易受到风的破坏？对生命线网络中关键路口结构冗余的具体修改是否会确保该系统显著加强飓风强度？这次飓风破坏(卡特里娜飓风)与其他事件有什么不同？冰暴等不同的长期风事件造成的损害有何异同？在家庭机构对数据的检查包括考虑任何空间上相关的参数，例如网络脆弱性和停机持续时间分布分析。

AbstractThe principal investigator will focus on the evaluation of damage incurred by the power delivery system of the Gulf Coast during the Hurricane Katrina event. In this context, the power delivery system is comprised of the generation, transmission and distribution facilities. Implications of prolonged power outages on the functioning of other lifelines such as emergency services, health care facilities, water treatment and supply, transportation systems and telecommunications will be assessed from available data. Specific tasks considered critical include, but are not limited to, the following: interviewof local utility officials regarding structural engineering repair and design issues; collection of damage data for various components of each system from the field as repairs are made by utility crews (or without the availability of crews as necessary); collection of data regarding the restoration process of the varioussubsystems of power delivery; processing of any geographical information systems (GIS) related data and any geo-coding of new or modified systems as required; and disseminating the results through conference proceedings, seminars and archival journal articles. The use of influence diagrams and other systems engineering tools will be employed in modeling system failure and restoration as well as any significant interactions of other lifelines with electric power delivery. Specific questions to be examined are as follows: What structural design modifications can be made to ease the repair of distribution and transmission systems? Are certain structural components more prone to wind-induced damage than others? Will specific modifications to the structural redundancy of critical junctions in the lifeline network ensure significant hurricane hardening of the system? How does this hurricane damage (Katrina) differ from other events? What are the similarities and differences of damage caused by different long-term wind events such as ice storms? Examination of the data at the home institution includes a consideration of any spatially related parameters such as network fragilities and outage duration distribution analysis.