| 电力系统暂态稳定混合分析法的研究 |
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| 引用本文： | 刘明志,张江.电力系统暂态稳定混合分析法的研究[J].电力系统及其自动化学报,1999,11(2):7-12. |
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| 作者姓名： | 刘明志 张江 |
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| 作者单位： | [1]天津大学电力系 [2]大庆油田供电局 |
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| 摘 要： | 本文从两个方面对传统暂态稳定混合分析法进行了改进：一是提出一种根据仿真结果快速确定系统临界切除时间的方法，再根据临界切除时间下的故障清除后轨迹确定系统势能峰值点；二是引入修正势能和修正势能界面的概念。本算法所有分析都建立在仿真结果基础上，具有较高的可靠性。
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| 关 键 词： | 电力系统 暂态稳定性 混合法 |
IMPROVED HYBRID METHOD FOR TRANSIENT STABILITY ASSESSMENT OF POWER SYSTEM |
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| Liu mingzhi,Fang Dazhong,Song Wennan.IMPROVED HYBRID METHOD FOR TRANSIENT STABILITY ASSESSMENT OF POWER SYSTEM[J].Proceedings of the CSU-EPSA,1999,11(2):7-12. |
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| Authors: | Liu mingzhi Fang Dazhong Song Wennan |
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| Affiliation: | Liu mingzhi Fang Dazhong Song Wennan (Tianjin University Tianjin 300072) Zhang Jian Cai Xiao (Power Utility of Daqing Oilfield) |
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| Abstract: | Concepts of corrected transient energy function(CTEF) and corrected potential energy boundary surface(PEBS)are introduced in this paper to improve conventional hybrid method for fast on line transient stability analysis in this paper.Commercial software,BPA,of power system transient simulation is used in this paper for both fault on and post fault trajectories simulations.Based on the simulation results,an approach for fast analysis of critical fault clearing time is proposed.Then critical CTEF is estimated by a corrected potential main peak approach for transient energy margin(TEM) evaluation.Test results are given to show the TEM and critical fault clearing time obtained by the improved hybrid method. |
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| Keywords: | transient stability TEF hybrid method |
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