Rotor Speed-Free Estimation of the Frequency of the Center of Inertia

被引：42
|
作者：
Milano, Federico [1 ]
机构：
[1] Univ Coll Dublin, Sch Elect & Elect Engn, Dublin 4, Ireland
来源：
IEEE TRANSACTIONS ON POWER SYSTEMS | 2018年 / 33卷 / 01期
基金：
欧盟地平线“2020”;
关键词：
Center of inertia; frequency divider; frequency estimation; phasor measurement unit;
D O I：
10.1109/TPWRS.2017.2750423
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a formula to estimate the frequency of the center of inertia based exclusively on measures of bus frequencies, obtained, for example, from phasor measurement units, the network admittance matrix, and two parameters of synchronous generators, namely, the inertia constant and the internal reactance. The proposed formula can be utilized online and requires a highly reduced set of measures of bus frequencies. The letter discusses the theoretical background of the proposed expression and tests it with a 1479-bus model of the all-island Irish transmission system.
引用
收藏
页码：1153 / 1155
页数：3
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