| 计算电网电流保护保护范围的新方法 |
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| 引用本文： | 吕飞鹏,李华强,张军文,王建.计算电网电流保护保护范围的新方法[J].电力系统自动化,2000,24(12):42-44. |
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| 作者姓名： | 吕飞鹏 李华强 张军文 王建 |
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| 作者单位： | 1. 四川大学电气信息学院,成都,610065
2. 四川电力调度局,成都,610016 |
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| 摘 要： | 基于电网线路上短路故障通用计算模型，提出了通过解被保护线路故障电流方程，直接计算电网电流保护保护范围的新方法，大大减少了计算量，避免了现有方法的大量重复计算。该方法已成功用于作者研制的110 kV～500 kV电网继电保护整定计算专家系统。
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| 关 键 词： | 电力系统计算 继电保护 整定计算 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
A NEW METHOD FOR COMPUTING COVERAGE OF CURRENT PROTECTION IN POWER NETWORK |
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| Lü Feipeng,Li Huaqiang,Zhang Junwen,Wang Jian.A NEW METHOD FOR COMPUTING COVERAGE OF CURRENT PROTECTION IN POWER NETWORK[J].Automation of Electric Power Systems,2000,24(12):42-44. |
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| Authors: | Lü Feipeng Li Huaqiang Zhang Junwen Wang Jian |
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| Abstract: | The coverage of current protection is an important content to evaluate its performance. Based on the generalizedcomputation model for short circuit fault on the line in power network. a new method is proposed to directly obtain thecoverage of current protection by solving fault current equation of the protected line. Because the heavily repeated calculationrequired by currently available methods is entirely avoided. the efficiency of calculation is greatly improved. The proposedmethod has been successfully integrated into the expert system developed by authors for setting protective relaying in110 kV- 500kV power networks. |
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| Keywords: | power system computation relay protection setting calculation |
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