| 引用本文: | 熊海军,朱永利,张 琦,王德文.基于概率行为树的保护系统建模与可靠性定量评估[J].电力自动化设备,2016,36(1): |
| XIONG Haijun,ZHU Yongli,ZHANG Qi,WANG Dewen.Protection system modeling based on probabilistic behavior trees and quantitative evaluation of its reliability[J].Electric Power Automation Equipment,2016,36(1): |
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| 摘要: |
| 依据数字继电保护系统的功能和特点，提出一种保护系统的行为树模型及其可靠性定量评估方法。给出硬件部件、软件行为、顺序和选择关系的可靠度模型。对现有行为树模型进行概率扩展后完成对保护系统的建模，给出行为可靠度计算公式以进行保护系统可靠性定量评估。算例仿真计算结果表明，所提方法可正确评估保护系统可靠性，进行薄弱环节识别。 |
| 关键词: 继电保护 可靠性 建模 定量评估 概率行为树 |
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| 基金项目:国家自然科学基金资助项目（61074078）；中央高校基本科研业务费专项资金资助项目（2014MS126）；国家电网公司科技项目（GY17201200047） |
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| Protection system modeling based on probabilistic behavior trees and quantitative evaluation of its reliability |
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XIONG Haijun1, ZHU Yongli1, ZHANG Qi2, WANG Dewen1
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1.School of Control and Computer Engineering，North China Electric Power University，Baoding 071003，China;2.School of Science and Technology，North China Electric Power University，Baoding 071003，China
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| Abstract: |
| According to the functions and characteristics of digital relay protection system，the model of its behavior trees and the quantitative evaluation of its reliability are proposed. The reliability models are given for its hardware components，software behavior，sequence relation and selection relation. The existing behavior tree model is probabilistically extended，based on which the relay protection system is modeled. The calculative formula of behavior reliability is given，based on which the protection system reliability is quantitatively evaluated. The simulative results of case study show that，the proposed method can correctly evaluate the reliability of relay protection system and identify its weak parts. |
| Key words: relay protection reliability model buildings quantitative evaluation probabilistic behavior trees |
