| 分散电源并网对供电可靠性的影响分析 |
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| 引用本文： | 丁磊,潘贞存,王宾.分散电源并网对供电可靠性的影响分析[J].电力系统自动化,2007,31(20):89-93. |
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| 作者姓名： | 丁磊 潘贞存 王宾 |
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| 作者单位： | 1. 山东大学电气工程学院,山东省济南市,250061
2. 清华大学电机系电力系统国家重点实验室,北京市,100084 |
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| 摘 要： | 分析了分散电源并网对供电可靠性的影响.计算并对比了分散电源并网前后在重合闸、备自投、解列重合闸、孤岛等不同运行方式下的供电可靠性指标.推导出了分散电源并网可靠性预测评估的数学模型和SAIFI-Island曲线.分散电源并网后,不合理的运行方式将降低系统供电可靠性,与重合闸相结合的计划孤岛模式能较好地改善供电可靠性.
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| 关 键 词： | 分散电源 配电网 可靠性指标 重合闸 计划孤岛运行 |
| 收稿时间： | 4/13/2007 4:45:47 PM |
| 修稿时间： | 2007-04-13 |
Impact on Reliability of Distribution Networks with Dispersed Generators |
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| DING Lei,PAN Zhencun,WANG Bin.Impact on Reliability of Distribution Networks with Dispersed Generators[J].Automation of Electric Power Systems,2007,31(20):89-93. |
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| Authors: | DING Lei PAN Zhencun WANG Bin |
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| Affiliation: | 1.Shandong University,Jinan 250061,China;2.State Key Lab of Power Systems,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | The impact of dispersed generators on reliability indices in distribution networks is analyzed.The reliability indices of a typical distribution network adopting reclosing,automatic backup power switching,anti-islanding and intentional islanding are calculated,respectively.The evaluation model and the SAIFI-Island curve for evaluating the reliability are also derived.The results show that the dispersed generators often have a negative impact on the reliability indices through the reclosing failure and other improper operation strategies.The anti-islanding relay can rule out these negative impacts,and the proper intentional islanding coordinated with auto reclosing can make an improvement on system reliability. |
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| Keywords: | dispersed generator distribution network reliability indices auto reclosing intentional islanding |
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