基于随机网络能量的电力系统暂态稳定评估  

Transient Stability Assessmentof Power System Based on Random Network Energy

作　　者：刘铖[1] 张昊鑫 朱晓锋 张艳军 徐洪涛 张轶平 LIU Cheng;ZHANG Haoxin;ZHU Xiaofeng;ZHANG Yanjun;XU Hongtao;ZHANG Yiping(Electrical Engineering College Northeast Electric Power University,Jilin Jilin 132012;State Grid Jilin Power Supply Company,Changchun Jilin 130000;State Grid Liaoning Provincial Power Supply Company,Shenyang Liaoning 110000;State Grid Hei Longjiang Provincial Power Supply Company,Ha Erbin Hei Longjiang 150000)

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]国网吉林供电公司,吉林吉林132012 [3]国网辽宁省电力有限公司,辽宁沈阳110000 [4]国网黑龙江省电力有限公司,黑龙江哈尔滨150000

出　　处：《东北电力大学学报》2022年第6期90-99,共10页Journal of Northeast Electric Power University

基　　金：吉林省科技发展计划项目(20220101252JC)。

摘　　要：随着新能源的大量并网,电动汽车等随机负荷的渗透率不断增加,现代电力系统的结构框架趋于复杂化,表现出强烈的随机性.随机扰动下电力系统暂态稳定的评估越来越重要.文中首先对计及随机扰动的电力系统暂态稳定性现有方法基于随机网络能量函数,提出了基于随机扰动的电力系统数学模型,为后续研究奠定基础;其次,就随机电力系统应用状态下的暂态稳定评估指标体系进行构建与优化,研究了随机扰动的强度和类型对电力系统暂态稳定性的影响;最后,通过单机和十机算例对算法有效性进行验证.With a large number of new energy connected to the grid,the permeability of random loads such as electric vehicles is increasing,and the structural framework of modern power system tends to be complicated,showing strong randomness.The evaluation of power system transient stability under random disturbance is becoming more and more important.In this paper,firstly,the existing methods of power system transient stability considering random disturbance are based on randomnetwork energy function,and a power system mathematical model based on random disturbance is proposed,which lays the foundation for follow-up research.Secondly,the transient stability evaluation index system under the application state of stochastic power system is constructed and optimized,and the influence of the intensity and type of random disturbance on power system transient stability is studied.Finally,the effectiveness of the algorithm is verified by single machine and ten machine examples.

关 键 词：随机扰动 随机网络能量函数 暂态稳定 环境激励 

分 类 号：TM712[电气工程—电力系统及自动化]