Observer-based backstepping control of the half-direct permanent magnet wind power generation system

被引：7
作者：
Zhang, Z. Z. [1 ]
Zou, J. X. [1 ]
Zheng, G. [1 ]
Xu, H. B. [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Automat, Chengdu 610041, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING | 2012年 / 226卷 / I4期
关键词：
half-direct permanent magnet wind power generation system (HDPMWPG); high-gain observer; backstepping; start-up; grid-connected; stability; TRACKING; TURBINE;
D O I：
10.1177/0959651811426228
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an observer-based backstepping controller is presented for the half-direct permanent magnet wind power generation system. The technology of backstepping is introduced to design the controller for maximum power point tracking at the operation region with low and moderate wind, and the high-gain observer is designed to estimate the unmeasurable variables needed for the controller design. Moreover, a switching mechanism is proposed, in which an online rotational speed is defined for the startup-to-grid-connected switch of the half-direct permanent magnet wind power generation system. Then, the stability of the designed closed-loop controlled system is analysed, based on the Lyapunov asymptotical stability theory. Simulation results are presented to show the efficiency of the proposed control law.
引用
收藏
页码：441 / 450
页数：10
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