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�������պ����ѧѧ�� 2009, Vol. 35 Issue (4) :444-448    DOI:
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������1, ������1, �� ��1, ������2*
1. �������պ����ѧ �Զ�����ѧ���������ѧԺ, ���� 100191;
2. �����ϵͳ�����о���, ���� 100076
Robust adaptive control scheme for uncertain switched systems
Hou Yanze1, Dong Chaoyang1, Wang Qing1, Deng Wuyan2*
1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China

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ժҪ ����л��ź������ڶ������߱����IJ�ȷ���л�ϵͳ,���ڶ�Lyapunov����������ģ�Ͳο�����Ӧ��������,���������һ�ֿ��������з���������������³������Ӧ�л����Ʒ���.����,�ɲο��л�ϵͳ������Ӧ�����ɼ��Ͻ����ջ��л�ϵͳ,������Lure-Postnikov��ʽ�Ķ�Lyapunov����,����һ�����Ծ��󲻵�ʽ�Ƶ������ջ��л�ϵͳΪ�н�ģ�Ͳο�����Ӧ����ϵͳ�ij������.���,ѡ��HiMAT(Highly Maneuverable Aircraft Technology)�����������ڵ�5��������,��������������˶�ģ�ͽ����л�ϵͳ,����ƾ��з���������������³������Ӧ������.������֤�˷�������Ч��,�������ϵͳ�ڿ��������л��¿����õظ��������켣.
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Abstract�� For a class of uncertain switched linear systems, based on multiple Lyapunov functions method and model reference adaptive control theory, a robust adaptive switching control scheme with controller having nonlinear deadzone character was proposed, on which the switching law evolves according to the independent decision variables. Firstly, the closed-loop switched system was constructed by reference switched system and adaptive control laws. Afterwards, using Lure-Postnikov Lyapunov function, a sufficient condition via linear matrix inequations was deduced, which guaranteed closed-loop switched system was bounded model reference adaptive control system. Finally, five operating points of HiMAT(highly maneuverable aircraft technology)vehicle within the operating envelope were selected, and the five linear decoupled models corresponding to short period dynamics of the longitudinal motion composed the switched system, and then finite robust adaptive controllers with nonlinear deadzone character were designed. Simulation shows the effectiveness of proposed method, the system trajectory well tracks desired trajectory under fast and consecutive switchings.
Keywords�� switched system   adaptive control system   flight dynamics   control system synthesis     
Received 2008-04-18;
About author: ������(1982-),��,������˳��,��ʿ��,egibus@163.com.
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������, ������, �� ��, ������.��ȷ���л�ϵͳ��³������Ӧ���Ʒ���[J]  �������պ����ѧѧ��, 2009,V35(4): 444-448
Hou Yanze, Dong Chaoyang, Wang Qing, Deng Wuyan.Robust adaptive control scheme for uncertain switched systems[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(4): 444-448
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2009/V35/I4/444
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