Orderly Over-frequency Generator Tripping Strategy for Sending-end Power Grid Considering Wind Turbine Frequency Protection

被引：0
|
作者：
Xie Y. [1 ]
Zhang H. [1 ]
Li C. [1 ]
Li W. [2 ]
Wang H. [3 ]
Chang X. [3 ]
机构：
[1] Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, Shandong University, Jinan
[2] NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing
[3] Electric Power Dispatching and Control Center of State Grid Xinjiang Electric Power Co., Ltd., Urumqi
来源：
Li, Changgang (lichgang@sdu.edu.cn) | 1600年 / Automation of Electric Power Systems Press卷 / 45期
关键词：
High-voltage direct current (HVDC); Linear interpolation method; Over-frequency generator tripping; Perturbation method; Sending-end power grid; Setting model;
D O I：
10.7500/AEPS20200511006
中图分类号：
学科分类号：
摘要：
For the sending-end power grid where renewable energy accounts for a relatively high proportion and a large amount of power is sent out through multiple high-voltage direct current (HVDC) lines, HVDC blocking will cause over-frequency problems. Over-frequency generator tripping is an important control measure to restrain the frequency increase of the sending-end power grid. A setting method for the over-frequency generator tripping scheme is proposed based on considering the over-frequency protection of wind turbines and the active power change of transmission lines when HVDC blocking occurs. It is decomposed into the total generator tripping quantity submodel of the first round and the optimized setting submodel of generator tripping quantity of each basic round. The linear interpolation method and the perturbation method are used comprehensively to solve the generator tripping quantity of each round, and combined with the two-element table, the sensitivity is analyzed. Thus the over-frequency generator tripping scheme is optimized. The effectiveness of the proposed over-frequency generator tripping scheme is verified by an example of a provincial power grid in China and the adaptability of the proposed scheme is checked in different operation modes. © 2021 Automation of Electric Power Systems Press.
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页码：153 / 161
页数：8
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