Using a Probabilistic Breaker Malfunction Model to Account for Uncertainty in the Network Restoration Process

IF 2 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Mahdi Arabsadegh, Aref Doroudi
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引用次数: 0

Abstract

Due to changes in weather conditions, severe natural disasters with widespread and profound impacts seriously threaten power grids, necessitating an increase in resilience through an intelligent and rapid network recovery approach following such incidents. The subject of this paper focuses on the probability of breakers malfunction (PBM) after receiving a close command in the phase of grid restoration, assessing the system's resilience from this perspective. Financial and human resource limitations on repair teams have necessitated proactive repair methods for prioritized circuit breakers with a resilience-enhancing approach. In this paper, based on the breakers monitored data, especially the waveform of their closing coil current and the relevant healthy index, an optimization problem is formulated. The non-sequential Monte Carlo probabilistic technique has been then utilized to solve the problem and evaluate the role of breakers' failure action in the supplied network load during the restoration phase. Circuit breakers are divided into different groups based on the breaker's malfunction to examine their impact on the supplied load fully. The method demonstrates that achieving a highly resilient power grid requires considering not only the health condition of the breakers but also their location in the network. Based on the simulation results, a novel approach is proposed to provide the maintenance priority ranking list of network breakers, aiming to increase system resilience against hazardous events.

Abstract Image

用断路器故障概率模型考虑网络恢复过程中的不确定性
由于天气条件的变化,严重的自然灾害影响广泛而深远,严重威胁着电网,需要通过智能和快速的网络恢复方法来提高电网的应变能力。本文主要研究电网恢复阶段接到闭合指令后断路器故障(PBM)的概率,从这个角度评估系统的恢复能力。由于维修团队的财力和人力资源有限,因此有必要采用增强弹性的方法对优先断路器进行主动维修。本文根据断路器的监测数据,特别是断路器合闸线圈电流波形和相关健康指标,提出了一个优化问题。然后利用非顺序蒙特卡罗概率技术求解问题,并评估断路器失效动作在恢复阶段对供电网络负荷的作用。根据断路器的故障情况对断路器进行分组,充分考察断路器对供电负荷的影响。该方法表明,实现高弹性电网不仅需要考虑断路器的健康状况,还需要考虑断路器在电网中的位置。在仿真结果的基础上,提出了一种新的网络断路器维护优先级排序方法,以提高系统对危险事件的应变能力。
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来源期刊
Iet Generation Transmission & Distribution
Iet Generation Transmission & Distribution 工程技术-工程:电子与电气
CiteScore
6.10
自引率
12.00%
发文量
301
审稿时长
5.4 months
期刊介绍: IET Generation, Transmission & Distribution is intended as a forum for the publication and discussion of current practice and future developments in electric power generation, transmission and distribution. Practical papers in which examples of good present practice can be described and disseminated are particularly sought. Papers of high technical merit relying on mathematical arguments and computation will be considered, but authors are asked to relegate, as far as possible, the details of analysis to an appendix. The scope of IET Generation, Transmission & Distribution includes the following: Design of transmission and distribution systems Operation and control of power generation Power system management, planning and economics Power system operation, protection and control Power system measurement and modelling Computer applications and computational intelligence in power flexible AC or DC transmission systems Special Issues. Current Call for papers: Next Generation of Synchrophasor-based Power System Monitoring, Operation and Control - https://digital-library.theiet.org/files/IET_GTD_CFP_NGSPSMOC.pdf
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