摘要
为提高EMS的精度和实用性,对动态等值方法进行详细研究。该文主要对同调等值法和估计等值法的优缺点、发展的现状和前景进行了比较,最后采用一种基于改进的免疫算法的估计等值法对实际大电网进行估计等值。通过与最小二乘法比较发现,基于改进的免疫算法的动态等值方法精度较高,效果良好,能够很好地满足工程应用的要求。
In order to improve the accuracy and practicality of EMS,the dynamic equivalent methods was investigated in detail.In this paper,coherency method and evaluation method are investigated and compared in detail from the aspects of advantage,disadvantage,development status and development prospects.Finally,the evaluation method based on improved immune algorithm is applied in the engineering practice of real power system.Compared with the least square method,the dynamic equivalence method based on improved immune algorithm has higher precision and better effect,and can well meet the requirements of engineering applications.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2011年第1期149-154,共6页
Proceedings of the CSU-EPSA
基金
电力系统国家重点实验室资助项目(SKLD09KZ07)
关键词
电力系统
动态等值
同调等值法
估计等值法
免疫算法
power system
dynamic equivalent
coherency-based equivalence method
evaluation-based equivalence method
immune algorithm
