| 引用本文: | 彭云豪,董希建,周海强,等.电网安全稳定控制系统可靠性评估[J].电力系统保护与控制,2020,48(13):123-131.[点击复制] |
| PENG Yunhao,DONG Xijian,ZHOU Haiqiang,et al.Reliability evaluation of power grid security and stability control system[J].Power System Protection and Control,2020,48(13):123-131[点击复制] |
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| 摘要: |
| 对电网安全稳定控制系统(简称稳控系统)的可靠性进行评估是开展其可靠性设计的必要前提，对于保障电网安全稳定运行具有重要意义。首先，综述了电网二次系统可靠性评估指标和可靠性评估方法的研究现状，将可靠性评估指标从时间和概率两个方面进行了归类，总结了四种可以研究稳控系统可靠性的分析方法。然后，分别采用马尔可夫状态空间法和蒙特卡罗方法对稳控系统典型工程应用案例进行可靠性计算评估，比较了两种方法在小型稳控系统可靠性分析中的适用性，推导出装置失效率和修复率与系统可用度的数学表达式。最后，通过对比分析前述两种可靠性分析方法的优缺点，提出综合应用各种可靠性分析方法进一步深化研究大型复杂结构稳控系统可靠性的建议。 |
| 关键词: 安全稳定控制系统(稳控系统) 可靠性 评估指标 马尔可夫 蒙特卡罗 |
| DOI：10.19783/j.cnki.pspc.190956 |
| 投稿时间：2019-08-07修订日期：2019-09-23 |
| 基金项目:国家电网公司科技项目资助(5100-201940006A- 0-0-00) “交直流电网安全稳定控制系统本质安全提升技术研究” |
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| Reliability evaluation of power grid security and stability control system |
| PENG Yunhao,DONG Xijian,ZHOU Haiqiang,XIA Haifeng,YAN Yunsong,LI Mingying,LIU Qiang |
| (NARI Group Corporation State Grid Electric Power Research Institute, Nanjing 211106, China;College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;NARI Group Corporation State Grid Electric Power Research Institute, Nanjing 211106, China;State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China) |
| Abstract: |
| Evaluating the reliability of a power grid Security and Stability Control System (SSCS) is a necessary prerequisite for its reliability design, and is of great significance for ensuring the safety and stability of the power grid. First, the research status of reliability evaluation indices and reliability evaluation methods for the secondary system of a power grid are reviewed. The reliability evaluation indices are examined from aspects of time and probability. Four analysis methods which can be used to study the reliability of SSCS are summarized. Then, the Markov state space and Monte Carlo methods are used to evaluate the reliability of a typical engineering application of an SSCS. The applicability of the two methods in reliability analysis of small-scale SSCS is compared, and the mathematical expressions of failure rate, repair rate and system availability are derived. Finally, through the comparison of the advantages and disadvantages of the above two reliability analysis methods, suggestions are made for the further study of the reliability of large-scale complex SSCSs using various reliability analysis methods comprehensively. This work is supported by Science and Technology Project of State Grid Corporation of China (No. 5100-201940006A- 0-0-00) “Research on Intrinsic Safety Improvement Technology of Security and Stability Control System for AC/DC Power Grid”. |
| Key words: security and stability control system (SSCS) reliability evaluation indices Markov Monte Carlo |
