Nonlinear Adaptive L2-Gain Decentralized Excitation Control for Multi-Machine Power System

被引：0
|
作者：
Gu Z. [1 ]
Sun X. [1 ]
Yu Z. [1 ]
Zhu C. [2 ]
机构：
[1] School of Electrical and Electrics Engineering, Shijiazhuang Tiedao University, Shijiazhuang, 050034, Hebei
[2] Vehicles and Electrical Engineering Department, Ordnance Engineering College, Shijiazhuang, 050003, Hebei
来源：
Gu, Zhifeng (gzfgohappy@163.com) | 2018年 / Power System Technology Press卷 / 42期
基金：
中国国家自然科学基金;
关键词：
Adaptive L[!sub]2[!/sub]-gain control; Decentralized excitation control; L[!sub]2[!/sub]-gain excitation control; Nonlinear L[!sub]2[!/sub]-gain control; Power system stability;
D O I：
10.13335/j.1000-3673.pst.2017.2476
中图分类号：
学科分类号：
摘要：
For improving voltage stability of multi-machine power system and reducing influence of uncertain parameters and interference in the model on excitation control, a new nonlinear adaptive L2-gain decentralized excitation control (NADEC-L2) method is proposed. With the new NADEC-L2 method, difficulties in decentralized stabilization control of multi-machine excitation system, caused by non-affine mathematical model, the uncertain parameters and external disturbance, are resolved. Meanwhile, dissipation inequality need not to be considered in every back-stepping design steps and the differential values of state parameters are not included in control law, therefore it is convenient to engineering application. Finally, simulation comparison between traditional AVR+PSS and NADEC-L2 is carried out in Matlab/Simulink. Results show that, with the new control method, steady recovery speed of power system voltage is accelerated, amplitude of excitation control input is improved, fluctuation of tie-line power between different areas is decreased, influence of the uncertain parameters and outer disturbances is restrained, and dynamic stability of power system is thus improved. © 2018, Power System Technology Press. All right reserved.
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页码：3355 / 3360
页数：5
相关论文
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