Multi-objective Robust Design of Hydro-turbine Governor Parameter Considering Ultra-low Frequency Oscillation

被引：0
|
作者：
Jiang C. [1 ]
Zhou J. [1 ]
Shi P. [1 ]
Li S. [1 ]
Huang W. [2 ]
Gan D. [2 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
[2] Yunnan Electric Power Dispatching and Control Center, Kunming
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 21期
基金：
国家重点研发计划;
关键词：
Hydro-turbine governor; Robust control; Single-frequency model; Structured singular value; Ultra-low frequency oscillation;
D O I：
10.7500/AEPS20181107003
中图分类号：
学科分类号：
摘要：
Ultra-low frequency oscillation threaten the safe and stable operation of power grids and can be damped by adjusting the hydro-turbine governor parameters. The hydro-turbine governor parameter design should consider both stability and tracking performance, and the designed parameters should be robust enough to cope with changes in operation condition. Firstly, the matrix perturbation theory is used to rigorously prove the applicability of single-frequency model instead of the complex full model in the frequency range of ultra-low frequency oscillation. Based on the structured singular value theory, a parameter design method for hydro-turbine governor is proposed. The operation condition change is treated as perturbation in the single-frequency model, and the stability parameter and tracking performance parameter are included in the evaluation output weight function, so that the designed parameters can simultaneously satisfy the stability and tracking performance of the systems in multiple operation conditions. Case studies of Yunnan Power Grid of China validate the effectiveness of the proposed method. © 2019 Automation of Electric Power Systems Press.
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页码：125 / 131and147
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