H∞ mixed-sensitivity robust control design for damping low-frequency oscillations with DFIG wind power generation

被引:24
作者
Isbeih, Younes J. [1 ]
El Moursi, Mohamed Shawky [1 ]
Xiao, Weidong [2 ]
El-Saadany, Ehab [3 ,4 ]
机构
[1] Khalifa Univ Sci & Technol, Elect Engn & Comp Sci EECS Dept, POB 127788, Abu Dhabi, U Arab Emirates
[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
[3] Khalifa Univ, Adv Power & Energy Ctr, EECS Dept, Abu Dhabi, U Arab Emirates
[4] Univ Waterloo, 4ECE Dept, Waterloo, ON, Canada
关键词
INTER-AREA; STABILITY; SYSTEM; PENETRATION; CONVERTER; TURBINES; PSS;
D O I
10.1049/iet-gtd.2018.6433
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 study presents a H infinity mixed-sensitivity robust control design to improve the overall damping performance of low-frequency oscillations for power systems with doubly fed induction generator-based (DFIG) wind power generation. The supplementary damping controller is designed in the linear matrix inequality framework which allows the placement of the closed-loop poles inside a pre-defined region for improved stability. The damping signal is implemented at the reactive power modulation of the rotor-side converter of the DFIG wind turbine (DFIG-WT). The damping contribution of the power oscillator damper is compared with that provided by the power system stabiliser (PSS) of the synchronous generator (SG). State-space system analysis and time-domain simulations show the capability of DFIG-WT to enhance the overall damping of the oscillatory modes even if PSSs are not installed at SG s. Also, the designed controller shows a robust performance to wind speed variations. The performance evaluation is based on the revised two-area four machines system and the revised New England 39-bus system.
引用
收藏
页码:4274 / 4286
页数:13
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