Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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一種基于故障樹篩選的配電網停電風險評估方法

來源:電工電氣發(fā)布時間:2024-03-11 09:11 瀏覽次數:434

一種基于故障樹篩選的配電網停電風險評估方法

齊亮,吳嬈, 張增智
(國網山東省電力公司壽光市供電公司,山東 壽光 262700)
 
    摘 要:為加快配電網停電風險評估,降低自然災害多發(fā)給配電系統(tǒng)和用戶帶來的損失,提出了基于事故樹篩選的配電網停電風險評估方法。在災害發(fā)生后,對評估區(qū)域利用事故樹進行篩選,并利用提出的停電風險評估方法計算災害影響下的停電風險。針對災害發(fā)生前根據評估結果實施一定的應急補救措施可以減小受災害影響的負荷量,提出了利用轉供、啟動自備電源和應急電源等措施來減小受災害影響的負荷量,通過算例分析得出該方法能夠快速評估出系統(tǒng)受災害影響的風險值,并能通過事先實施相應的補救措施降低災害影響的風險值,具有一定的應用價值。
    關鍵詞: 配電網;風險評估;停電;故障樹篩選
    中圖分類號:TM732     文獻標識碼:B     文章編號:1007-3175(2024)02-0041-06
 
An Outage Risk Assessment Method for Distribution Network
Based on Fault Tree Screening
 
QI Liang, WU Rao, ZHANG Zeng-zhi
(Shouguang City Power Supply Company, State Grid Shandong Electric Power Company, Shouguang 262700, China)
 
    Abstract: In order to speed up the risk assessment of power outages in the distribution network and reduce the losses caused by natural disasters to the distribution system and users, this paper proposes an assessment of power outage risk of distribution network based on accident tree screening. After the occurrence of the disaster, the accident tree was used to screen the assessment area, and the power outage risk under the influence of the disaster was calculated by using the proposed power outage risk assessment method. In view of the fact that the implementation of certain emergency remedial measures according to the assessment results before the disaster can reduce the load affected by the disaster, the measures such as using the transfer of supply, starting the self-provided power supply and the emergency power supply are proposed to reduce the load affected by the disaster. Through the analysis of examples, it is concluded that this method can quickly evaluate the risk value of the system affected by disasters, and can reduce the risk value of disaster impact by implementing corresponding remedial measures in advance, which has certain application value.
    Key words: distribution network; risk assessment; outage; fault tree screening
 
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