| 冲击负荷对电力系统可靠性影响的分析 |
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| 引用本文： | 王建学,高卫恒,别朝红.冲击负荷对电力系统可靠性影响的分析[J].中国电机工程学报,2011,31(10). |
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| 作者姓名： | 王建学 高卫恒 别朝红 |
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| 作者单位： | 电力设备电气绝缘国家重点实验室(西安交通大学),陕西省,西安市,710049 |
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| 基金项目： | 国家自然科学基金项目(50807043,50677050)~~ |
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| 摘 要： | 冲击负荷对电网和电力设备带来多方面不利影响,主要从可靠件的角度对其进行研究.首先分析了来临时刻符合泊松分布、强度相互独立的冲击负荷对普通元件停运的影响.进而采用首次运行期望时间参数对常规负荷情况下的电力元件可靠性参数进行修正,并以此为基础进行冲击负荷下的电网可靠性评估.通过对冲击负荷和常规负荷2种情况下电网可靠性进行对比分析,得到冲击负荷对电网运行风险的影响.某实际地区电网算例验证了所提方法的正确性和有效性.该研究为在冲击负荷卜进行系统运行风险分析和安排检修计划提供了定量的理论依据.
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| 关 键 词： | 电力系统 冲击负荷 强迫停运率 可靠性评估 泊松过程 |
Influence of Shock Loads on Power System Reliability |
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| WANG Jianxue
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GAO Weiheng
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BIE Zhaohong.Influence of Shock Loads on Power System Reliability[J].Proceedings of the CSEE,2011,31(10). |
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| Authors: | WANG Jianxue GAO Weiheng BIE Zhaohong |
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| Affiliation: | WANG Jianxue,GAO Weiheng,BIE Zhaohong(State Key Laboratory of Electrical Insulation and Power Equipment(Xi' an Jiaotong University),Xi' an 710049,Shaanxi Province,China) |
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| Abstract: | Shock load exerts various negative effects on electric network and power equipment.Investigations were implemented with respect to this problem focusing on power system reliability.The basic outage model of normal equipment was analyzed under the assumption that shocks arrive following a Poisson process and with mutually independent magnitudes.The parameter of the expected first-run time was used to improve the reliability index of power equipment under conventional load.The system reliability under shock l... |
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| Keywords: | power system shock load forced outage rate reliability evaluation Poisson process |
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