| 电力系统二次设备风险评估模型和方法 |
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| 引用本文： | 黄明辉,蔡泽祥,曹建东,吴姜.电力系统二次设备风险评估模型和方法[J].广东电力,2012(2):5-8,76. |
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| 作者姓名： | 黄明辉 蔡泽祥 曹建东 吴姜 |
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| 作者单位： | 广东电网电力调度控制中心;华南理工大学电力学院 |
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| 基金项目： | 广东省科技项目(2010B010900028) |
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| 摘 要： | 针对二次设备的风险评估中无量化评估方法和规范的问题，提出一种量化评估模型和方法，该模型将设备状态评价结果和平均故障概率统计数据进行关联拟合，确定二次设备平均故障概率的计算方法；针对二次设备自身的特点建立基于事件树的可能损失评估模型，并结合设备的平均故障概率和故障引起的等效可能损失计算出设备当前的风险值。实例证明，利用该方法开展风险评估可以合理地反映二次设备的运行风险，其评估结果为科学开展二次设备风险控制等工作提供依据。
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| 关 键 词： | 二次设备 风险评估 状态评价 平均故障概率 事件树分析 等效可能损失 |
Risk Assessment Model and Method for Secondary Equipment in Power System |
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| HUANG Minghui,CAI Zexiang,CAO Jiandong,WU Jiang.Risk Assessment Model and Method for Secondary Equipment in Power System[J].Guangdong Electric Power,2012(2):5-8,76. |
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| Authors: | HUANG Minghui CAI Zexiang CAO Jiandong WU Jiang |
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| Affiliation: | 1.Dispatching & Control Center of Guangdong Power Grid Corporation,Guangzhou,Guangdong 510600,China;2.School of Electric Power,South China University of Technology,Guangzhou,Guangdong 510640,China) |
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| Abstract: | In accordance that there is no quantative assessment method and regulation in evaluating risks of secondary equipment,a quantative assessment model and method are presented.The model combines assessment result with average probability of failure to determine calculation method for average failure rate of secondary equipment.Potential loss assessment model based on event tree is built in line with characteristics of secondary equipment and present risk value is figured out in combination with average failure rate and equivalent potential loss.It is practically proved that risk assessment by means of this method can reasonably reflect operational risk of secondary equipment,and the assessment result can provide evidence for risk control of secondary equipment. |
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| Keywords: | secondary equipment risk assessment status evaluation average failure probability event tree analysis equivalent potential loss |
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