利用DSA Tools的功角稳定性概率评估方法  

Probabilistic Rotor Angle Stability Assessment Using DSA Tools

作　　者：赵霞[1] 周家启[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《高电压技术》2010年第4期1061-1067,共7页High Voltage Engineering

基　　金：国家重点基础研究发展计划(973计划)(2004CB217908)~~

摘　　要：为计及各种不确定性因素及其影响,并在此基础上实现对复杂系统稳定性水平的综合评估,提出一种基于专业电力系统分析软件DSA Tools实现功角稳定性概率评估的方法。计及系统运行工况、故障场景及故障后保护和重合闸行为的不确定性,基于蒙特卡罗概率模拟思想,通过动态创建DSA Tools稳定分析作业及调用稳定计算引擎实现小扰动稳定及暂态稳定的概率分析与评估。与常规确定性稳定分析比较,所提方法可以更全面综合地分析系统特征模式、评估稳定水平及识别稳定性薄弱环节。IEEE17机162节点系统算例验证了所提方法的有效性,为扩展专业软件基础功能、开发概率评估新工具提供了可行思路和途径。A method based on DSA Tools is proposed to carry out probabilistic rotor angle stability assessment with various uncertain factors and their effects are considered. Taking uncertainties in system states,fault events and protection and reclosure behavior into consideration,a Monte Carlo simulation based probabilistic assessment for small-disturbance stability and transient stability is performed by creating case files and calling DSA Tools computation engine at runtime. Compared with deterministic stability analysis,the proposed method can provide more comprehensive information on system eigenvalues,more rational measure of system stability level and a deeper insight into the most critical component for maintaining stability. Case studies on the IEEE 17-machine 162-bus system verify the feasibility of the proposed method. A useful method is also provided for developing new analysis tools through functional extension and customization of commercial software.

关 键 词：电力系统 概率评估 功角稳定 小扰动稳定 暂态稳定 蒙特卡罗模拟 DSA TOOLS 

分 类 号：TM712[电气工程—电力系统及自动化] TM743