Inertia Distribution Characteristics of Power System Considering Structure and Parameters of Power Grid

被引：0
|
作者：
Liu F. [1 ,2 ]
Xu G. [1 ]
Liu J. [1 ]
Wang C. [1 ]
Bi T. [1 ]
Guo X. [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
[2] Qingpu Power Supply Company of State Grid Shanghai Municipal Electric Power Company, Shanghai
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2021年 / 45卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Calculated node inertia; Distribution characteristic; Inertia; Sensitivity;
D O I：
10.7500/AEPS20201017005
中图分类号：
学科分类号：
摘要：
With the increasing penetration of renewable energy in power system, the characteristics of the decreasing time constant for the system inertia and the uneven distribution of the inertia are prominent. To this end, the index of calculated node inertia is used to characterize the ability of nodes to resist frequency changes, and then the grid structure and inertia distribution characteristics of parameter analysis system are considered. Then, the calculated node inertia of the two-machine system and the multi-machine system is theoretically deduced, and the analytical expression for calculated node inertia is obtained. The calculated node inertia is verified and analyzed in a two-machine system and an 8-machine 36-node system. At the same time, a sensitivity analysis of the calculated node inertia is carried out to study the mutual influence of the inertia between regions. The analysis results show that the calculated node inertia obtained by system parameters can quantitatively characterize the distribution characteristics of the system inertia. © 2021 Automation of Electric Power Systems Press.
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页码：60 / 67
页数：7
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