| 引用本文: | 刘剑,李兴源,王成,干华,许立雄.计及抗毁性的输电线路关键性综合评价[J].电力自动化设备,2018,(12): |
| LIU Jian,LI Xingyuan,WANG Cheng,GAN Hua,XU Lixiong.Comprehensive assessment of criticality for transmission line considering invulnerability[J].Electric Power Automation Equipment,2018,(12): |
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| 摘要: |
| 有效识别关键输电线路对预防大面积停电事故具有重要的意义。综合元件个体的抗毁性和对系统整体运行安全的重要性，提出了一种输电线路关键性的评估方法。从输电线路在系统正常状态下对负荷波动的承载力和在系统事故状态下对N-1开断的抗扰力2个方面综合衡量输电线路元件个体的抗毁能力；从输电线路对连锁故障产生和扩散所起的作用，来综合量化输电线路对系统整体运行安全的重要性；从输电线路的抗毁性和重要性来综合评价输电线路的关键性。IEEE 39节点系统算例和某实际电网算例验证了所提指标与方法的合理性和有效性。 |
| 关键词: 输电线路 连锁故障 系统状态 负荷波动 N-1开断 抗毁性 关键性 综合评价 |
| DOI：10.16081/j.issn.1006-6047.2018.12.018 |
| 分类号:TM726 |
| 基金项目:教育部中央高校基本科研业务费专项资金资助项目(2082604184073) |
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| Comprehensive assessment of criticality for transmission line considering invulnerability |
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LIU Jian1,2, LI Xingyuan1, WANG Cheng3, GAN Hua4, XU Lixiong1
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1.School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China;2.Yalong River Hydropower Development Co.,Ltd.,Chengdu 610051, China;3.State Grid Sichuan Electric Power Company, Chengdu 610041, China;4.Chengdu Chengdian Electric Power Engineering Design Co.,Ltd.,Chengdu 610041, China
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| Abstract: |
| Effective identification of crucial transmission lines is of great significance to prevent widespread blackouts. An assessment method for the criticality of transmission lines is proposed, which takes into consideration both the invulnerability of transmission line individual components and the importance to the whole system's safe operation. The invulnerability of transmission line individual components is measured comprehensively from two aspects of carrying capacity of transmission line to load fluctuations under the normal condition and resistance to N-1 outage under the accident condition. The importance of transmission lines to the overall operation safety of system is quantified comprehensively from the perspective of transmission lines' effects on the cascading failure generation and diffusion. And then the criticality of transmission lines is assessed comprehensively from aspects of invulnerability and importance of transmission lines. The case studies of IEEE 39-bus system and a practical provincial system demonstrate the rationality and validity of the presented indicators and method. |
| Key words: transmission lines cascading failures system states load fluctuations N-1 outage invulnerability criticality comprehensive assessment |
