Online Monitoring Method for Inertial Support Capacity of Point-to-Grid in New Power Systems

被引：0
|
作者：
Deng, Xiaoyu [1 ]
Liu, Muyang [1 ]
Chang, Xiqiang [1 ,2 ]
Nan, Dongliang [3 ]
Mo, Ruo [3 ]
Chen, Junru [1 ]
机构：
[1] School of Electrical Engineering, Xinjiang University, Urumqi,830046, China
[2] State Grid Xinjiang Electric Power Co., Ltd., Urumqi,830011, China
[3] Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., Urumqi,830011, China
来源：
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2024年 / 58卷 / 09期
关键词：
Equivalent inertia constant - Identification method - Inertia constants - Inertia monitoring - Monitoring methods - New power system - On-line monitoring methods - Power - Support capability - Virtual synchronous generator;
D O I：
10.16183/j.cnki.jsjtu.2023.029
中图分类号：
学科分类号：
摘要：
An accurate and timely monitoring for the inertia support capability of the point of interconnection of aggregated sources to the grid in a low-inertia new power system is crucial for the safety, stability, and economic operation of the system. In order to explain the basic idea of the online point-to-grid inertia monitoring method, the definition of inertia of power system based on the swing equation and existing online monitoring methods are analyzed. Then, in order to improve the accuracy of the existing online inertia monitoring method, an equivalent inertia constant identification method based on the regression method is developed. Combining the proposed inertia constant identification method with the online inertia monitoring method, a systematic method for online monitoring of the inertia support capacity of point-to-grid in new power system is developed based on synchronous phasor measurement units. Finally, the simulation analysis of a modified New England 10-machine 39-bus system proves the accuracy and the feasibility of the developed real-time inertia monitoring method for the new power system. © 2024 Shanghai Jiaotong University. All rights reserved.
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页码：1390 / 1399
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