| 引用本文: | 赵 渊,邱玉良,宿晓岚.含TCSC的电网运行风险评估模型[J].电力自动化设备,2014,34(7): |
| ZHAO Yuan,QIU Yuliang,SU Xiaolan.Operating risk assessment model of power grid with TCSC[J].Electric Power Automation Equipment,2014,34(7): |
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| 摘要: |
| 通过对TCSC结构和故障模式分析，构建了TCSC及其子模块的可靠性框图，计及部件冗余配置讨论了子模块可靠性；深入分析了TCSC的电抗随电流而变化的运行特性，基于此提出了一种计及TCSC视在电抗约束的线路可靠性模型；根据实时运行条件下故障率参数的时变特性，应用马尔可夫理论推导了TCSC核心部件以及整个线路的状态概率计算公式，并基于运行风险理论建立了条件相关的故障率模型，该模型定量考虑了负荷随机波动、元件老化以及气温变化对元件可靠性的影响。通过对RBTS测试系统可靠性的计算分析，验证了所提模型的有效性和正确性。 |
| 关键词: TCSC 可靠性框图 运行风险 实时运行条件 模型 |
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| 基金项目:国家自然科学基金资助项目（50977094）；中央高校基本科研业务费专项资金资助项目（CDJZR11150012）；输配电装备及系统安全与新技术国家重点实验室自主研究项目（2007DA10512711208）；重庆市自然科学基金资助项目（CSTC，2011BB6047） |
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| Operating risk assessment model of power grid with TCSC |
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ZHAO Yuan1, QIU Yuliang1, SU Xiaolan2
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1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology，Chongqing University，Chongqing 400044，China;2.Urban Power Supply Branch Company of Chongqing Electric Power Corporation，Chongqing 400013，China
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| Abstract: |
| The structure and fault mode of TCSC（Thyristor Controlled Series Capacitor） are analyzed，the reliability block diagram is constructed for TCSC and its submodules，and the reliability of submodule with redundant component configuration is discussed. The operational characteristics of TCSC reactance varying with current is analyzed，based on which，a line reliability model with the TCSC apparent reactance constraint is proposed. According to the time-varying characteristics of failure rate in real-time operating condition，the state probability calculation formulas are deduced based on Markov theory for the core components of TCSC and the entire lines. A conditional failure rate model is built based on the operating risk theory，which quantitatively considers the impact of random load fluctuation，component aging and temperature variation on the reliability of components. The reliability of RBTS test system is calculated and analyzed，verifying the effectiveness and correctness of the proposed model. |
| Key words: TCSC reliability block diagram operational risk real-time operating condition models |
