基于故障影响域的多重预想故障集筛选方法
针对省级电网静态安全分析中多重预想故障数量庞大以及由此带来的计算效率低下、耗时过长等问题,研究并实现了一种基于故障影响域的多重预想故障集自动筛选方法。首先,利用转移系数表示某设备在其他设备开断前后的有功潮流变化;随后,根据转移系数将开断后潮流明显增大且接近短时过载能力的设备划归为此开断设备的故障影响域;最后,根据分析不同预想开断的故障影响域之间的关系确定需要重点关注的N-2多重故障集。此方法原理简单,容易编程实现。通过在IEEE 39节点系统和省级电网中的成功应用证明了此方法的可靠性和实用性。...
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| Published in | 电力系统保护与控制 Vol. 43; no. 14; pp. 92 - 99 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
国网福建省电力有限公司电力科学研究院,福建 福州,350007%国网福建省电力有限公司电力科学研究院,福建 福州 350007
2015
浙江大学电气工程学院, 浙江 杭州 310027%国网福建省电力有限公司,福建 福州,350003%浙江大学电气工程学院,浙江 杭州,310027 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
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| Summary: | 针对省级电网静态安全分析中多重预想故障数量庞大以及由此带来的计算效率低下、耗时过长等问题,研究并实现了一种基于故障影响域的多重预想故障集自动筛选方法。首先,利用转移系数表示某设备在其他设备开断前后的有功潮流变化;随后,根据转移系数将开断后潮流明显增大且接近短时过载能力的设备划归为此开断设备的故障影响域;最后,根据分析不同预想开断的故障影响域之间的关系确定需要重点关注的N-2多重故障集。此方法原理简单,容易编程实现。通过在IEEE 39节点系统和省级电网中的成功应用证明了此方法的可靠性和实用性。 |
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| Bibliography: | provincial power grid; transfer coefficient; fault influence domain; anticipated multi-contingencies; automaticselection 41-1401/TM To solve the issues of low calculating efficiency and long calculating time caused by large amount of anticipated multi-contingencies in the static security analysis of provincial power grid, an anticipated multi-contingencies automatic selection method based on fault influence domain is researched and implemented. Firstly transfer coefficient is used for signifying the active power flow change of devices before and after contingency of another device. Then according to the transfer coefficient, the devices which the power flow is significantly increased and closed to the short-term overload capacity are defined as the fault influence domain of certain device. Finally the important anticipated N-2 contingencies are automatically selected according to the relationship between every fault influence domain. The theory of this method is simple, and facilitates programming realization. |
| ISSN: | 1674-3415 |