电子科技大学学报Issue(5)：705-711,7.DOI:10.3969/j.issn.1001-0548.2015.05.012
基于能量函数的电网暂态稳定性离线量化指标研究
Energy-Based Research on Grid Transient Stability Off-Line Quantification Index
摘要
Abstract
Energy margin based on Lyapunov direct method has been considered as an important index to quantify the transient stability of power system. Especially its on-line application has been focus of attention. Based on the classical equations of rotor motion, the transient energy function model is first established in this paper. Then the converting relationship between the potential energy boundary surface and the stability region characteristics is described. Based on these, the second kick method and the interpolation method based on the property of potential energy boundary are combined to calculate the maximum of the potential energy. At last, the energy margin model is established based on the maximum of potential energy and the transient energy. The simulation results in three-machine and IEEE-30 bus system and the comparison with CUEP verify the effectiveness and feasibility of the proposed method, which can be used in off-line assessment of transient stability of power system.关键词
能量裕度/稳定域/二次扰动/暂态稳定性Key words
energy margin/stability region/the second kick/transient stability分类
信息技术与安全科学引用本文复制引用
刘群英,刘起方,刘登,廖永锋..基于能量函数的电网暂态稳定性离线量化指标研究[J].电子科技大学学报,2015,(5):705-711,7.基金项目
国家自然科学基金(51007006)；中国博士后面上基金(2015M572457) （51007006）
