Data-driven Dynamic Equivalence Method in Bulk Power Systems

被引：0

作者：

Chen H. ^{[1
]}

Wang W. ^{[1
]}

Jiang T. ^{[1
]}

Wei J. ^{[2
]}

Zhang S. ^{[1
]}

Li G. ^{[1
]}

机构：

[1] School of Electrical Engineering, Northeast Electric Power University, Jilin, 132012, Jilin Province

[2] Northeast Branch of Huadian Electric Power Research Institute, Shenyang, 110167, Liaoning Province

来源：

Jiang, Tao (electricpowersys@163.com) | 1600年 / Power System Technology Press卷 / 44期

基金：

中国国家自然科学基金;

关键词：

Damping; Dynamic equivalence; Inertial constant; Least square; Parameter identification; Power system;

D O I：

10.13335/j.1000-3673.pst.2019.1742

中图分类号：

学科分类号：

摘要：

This paper proposed a data-driven dynamic equivalence method for bulk power systems. According to coherency of generators and electrical distance between buses, the principle of system partition was defined firstly. Then the transient reactance of the equivalent generator was identified by taking the bus voltage and the power on tie-lines as the input. In aid of constructing equivalent power system, the inertia and damping identification of the equivalent generator was estimated by Least-Square optimization, which minimize the error of active power of tie-lines between the equivalent system and the original power system. The root mean square error (RMSE) and the fitting degree were further used to evaluate dynamic characteristic of equivalent system. The proposed method was verified in the modified IEEE 68-bus system and the four-terminal VSC-based DC grid project in Zhangbei area. The results confirm the validity and accuracy of the proposed method. © 2020, Power System Technology Press. All right reserved.

引用

页码：3047 / 3056

页数：9

共 24 条

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