Distributed calculation method of voltage stability contingency screening and ranking for integrated transmission and distribution networks

被引：0
作者：
Zhao J. [1 ]
Tang J. [1 ]
Lin Q. [1 ]
Wu D. [2 ]
Tang W. [2 ]
Yang C. [2 ]
Hu X. [2 ]
机构：
[1] Research Center for Renewable Energy Generation Engineering of Ministry of Education, Hohai University, Nanjing
[2] State Grid Anhui Electric Power Co., Ltd., Hefei
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Contingency screening and ran-king; Distributed calculation; Distributed continuous power flow; Integrated transmission and distribution networks; Voltage stability;
D O I：
10.16081/j.epae.202008032
中图分类号：
学科分类号：
摘要：
Along with the transformation from traditional distribution network to active distribution network with many distributed generators,voltage stability assessment of transmission and distribution networks is no longer suitable to calculate separately. Since transmission and distribution networks are controlled by different control centers,a distributed calculation method of voltage stability contingency screening and ranking for integrated transmission and distribution networks is proposed,which includes two stages. In Stage 1,the master-slave splitting distributed power flow tool of transmission and distribution networks is adopted for power flow calculation of each anticipated contingency under the condition of minimum load margin requirement of system,and the optimal multiplier method is used to screen out the critical contingencies whose power flow cannot be solved. In Stage 2,the load margins of critical contingencies are calculated and ranked by the look-ahead quadratic curve fitting method based on distributed continuous power flow of transmission and distribution networks. The simulation case of an integrated system composed of an IEEE 18-bus transmission network and two IEEE 33-bus distribution networks shows that the proposed method can quickly and reliably realize the voltage stability contingency screening and ranking of integrated transmission and distribution networks. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：1 / 7
页数：6
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