| 引用本文: | 朱益华,罗 毅,段 涛,施 琳,陈建军,谢 睿,李晓露,熊卫斌,李 矛.基于输电线路实时评估模型的电力系统静态安全在线风险评估[J].电力自动化设备,2014,34(7): |
| ZHU Yihua,LUO Yi,DUAN Tao,SHI Lin,CHEN Jianjun,XIE Rui,LI Xiaolu,XIONG Weibin,LI Mao.Online risk assessment based on real-time evaluation model of transmission line for static security of power system[J].Electric Power Automation Equipment,2014,34(7): |
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| 基于输电线路实时评估模型的电力系统静态安全在线风险评估 |
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朱益华1,2, 罗 毅1, 段 涛1, 施 琳1, 陈建军1, 谢 睿1, 李晓露3, 熊卫斌2, 李 矛2
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1.华中科技大学 强电磁工程与新技术国家重点实验室，湖北 武汉 430074;2.中国南方电网公司，广东 广州 510623;3.阿尔斯通公司，上海 201114
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| 摘要: |
| 提出了一种电力系统静态安全在线风险评估方法。该方法建立了计及气象因素的输电线路实时评估模型，并利用该模型求解输电线路的实时故障概率，在此基础上利用随机潮流计算所建立的风险指标。为了减小求解规模，提出了一种实时故障筛选与排序方法。按照是否考虑输电线路随机故障分为2种情况进行对比分析，New England 10机39节点系统的计算表明，所提方法能够真实评估系统当前所处的风险水平。 |
| 关键词: 电力系统 输电 模型 随机潮流 实时故障筛选与排序 静态安全 风险评估 |
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| 基金项目:南方电网公司2011年重点科技项目（K-ZB2011- 012） |
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| Online risk assessment based on real-time evaluation model of transmission line for static security of power system |
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ZHU Yihua1,2, LUO Yi1, DUAN Tao1, SHI Lin1, CHEN Jianjun1, XIE Rui1, LI Xiaolu3, XIONG Weibin2, LI Mao2
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1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology，Huazhong University of Science and Technology，Wuhan 430074，China;2.China Southern Power Grid Company，Guangzhou 510623，China;3.Alstom Company，Shanghai 201114，China
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| Abstract: |
| A method of online risk assessment for the static security of power system is proposed，which establishes a real-time assessment model of transmission line with the consideration of meteorological factors，calculates the real-time fault probability of transmission line according to the established model and applies the probabilistic power flow to obtain the established risk indexes. A method of real-time fault screening and ranking is proposed to reduce the scale of computation. Comparative analysis is carried out between New England 10-generator 39-bus system with and without random transmission line faults，which shows that the proposed method assesses the risk level of power system truly in real time. |
| Key words: electric power systems power transmission models probabilistic power flow real-time fault screening and ranking static security risk assessment |
