| 基于最小二乘法的高压直流输电系统可靠性灵敏度分析 |
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| 引用本文： | 黎小林,曹侃,谢开贵,王立斌,黄莹,许树楷. 基于最小二乘法的高压直流输电系统可靠性灵敏度分析[J]. 电力系统自动化, 2009, 33(18): 12-16 |
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| 作者姓名： | 黎小林 曹侃 谢开贵 王立斌 黄莹 许树楷 |
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| 作者单位： | 南方电网技术研究中心,广东省广州市,510623;重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆市,400030 |
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| 摘 要： | 对高压直流(HVDC)输电系统进行可靠性灵敏度分析可以辨识系统的薄弱环节,对改善系统可靠性具有重要意义.文中提出一种分析HVDC输电系统可靠性灵敏度的方法:用最小二乘法拟合HVDC输电系统可靠性指标随元件可靠性参数变化的曲线,并根据拟合曲线即可得到元件对系统可靠性的灵敏度.当HVDC元件的可靠性参数发生变化后,为了快速估算出该参数对应的灵敏度,提出灵敏度曲线的概念,并推导了其解析表达式.对一单12脉接线HVDC输电系统进行灵敏度分析,证实了该方法的可行性和有效性.
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| 关 键 词： | 高压直流输电系统 可靠性 最小二乘法 灵敏度分析 |
| 收稿时间： | 2008-12-23 |
| 修稿时间： | 2009-09-02 |
Sensitivity Analysis of HVDC Transmission System Reliability Using the Least Square Method |
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| LI Xiaolin,CAO Kan,XIE Kaigui,WANG Libin,HUANG Ying,XU Shukai. Sensitivity Analysis of HVDC Transmission System Reliability Using the Least Square Method[J]. Automation of Electric Power Systems, 2009, 33(18): 12-16 |
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| Authors: | LI Xiaolin CAO Kan XIE Kaigui WANG Libin HUANG Ying XU Shukai |
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| Affiliation: | LI Xiaolin1,CAO Kan2,XIE Kaigui2,WANG Libin2,HUANG Ying1,XU Shukai1(1. China Southern Power Grid Technology Research Center,Guangzhou 510623,China,2. State Key Laboratory of Power Transmission Equipment & System Security , New Technology,Chongqing University,Chongqing 400030,China) |
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| Abstract: | Weak parts of a HVDC transmission system can be recognized using sensitivity analysis,which has been an important technique for system reliability assessment and enhancement. A new sensitivity analysis method for HVDC system is proposed in this paper. The least square method is used to model the relationship of HVDC reliability indices varying with the reliability parameters of components. It can be used to obtain the sensitivity formula of system reliability indices with respect to parameters of system com... |
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| Keywords: | HVDC systems reliability least square method sensitivity analysis |
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