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�������պ����ѧѧ�� 2006, Vol. 32 Issue (05) :553-557    DOI:
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�������պ����ѧ �Զ�����ѧ���������ѧԺ, ���� 100083
EHA controller design based quantitative feedback theory
Ma Jiming, Fu Yongling, Gao Bo*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ ������������(QFT,Quantitative Feedback Theory)��һ��³����������Ʒ���,���кܺõĹ���ʵ����,��Һѹ�ŷ���������õ��˹㷺Ӧ��.�����綯��Һ������(EHA,Electrical Hydrostatic Actuator)ģ�Ͳ��򻯺�,���ڶ����������۽��������⻷����ϵͳ�����.�ڻ����Ƶ綯��ת��,��Ҫ��֤�������;�⻷���ƶ����ת��,Ҫ��˸������ܡ�³���ȶ��ԺͿ���������.��ƹ����п��ǵ��˵綯����Һѹϵͳ�IJ�����ȷ���Ժ͸��ַ���״̬�µĸ��ر仯���,���������⻷����ָ�����ɱ߽�����.����������:�����������Բ����仯����³����,���ܺܺõ�����������Ŵ�����Ӱ��,ʹһ�廯�綯��Һ����ϵͳ��ַ�����ת�ظߡ������ܶȴ�����ά�޺�ģ�黯���ŵ�,�������ɿ�ϵͳ����������кܴ����.
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Abstract�� QFT (quantitative feedback theory) is a robust controller design method. It has good practicability and has been widely used in hydraulic servo control system. After creating the EHA(electrical hydrostatic actuator)’s model, the inner and outer loop controllers were designed based on QFT. Inner loop controlled motor’s rotate speed and ensured that it had good response time. Outer loop controlled the position of flight surface and ensured that it had good robust stability, tracking capability and disturb restraining ability. Design process considered the parameters’ uncertainty of electronic and hydraulic system, and aero load changing under all flight conditions. Performance bounds defining took all the inner and outer loop requirements into account. Simulation results show that this control system has good robust stability and can restrain the output disturbance efficiently, which can fully utilize some strongpoint of integrated EHA like high torque and power density, easiness to maintain and modularize. It can greatly improve the performance of flight control system.
Keywords�� power by wire   electrical hydrostatic actuator   QFT(quantitative feedback theory)   robust control     
Received 2005-05-10;
About author: �����(1979-),��,�����ܿ���,��ʿ��, ssmjm2000@yahoo.com.cn.
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�����, ������, �߲�.���ڶ����������۵�EHA���������[J]  �������պ����ѧѧ��, 2006,V32(05): 553-557
Ma Jiming, Fu Yongling, Gao Bo.EHA controller design based quantitative feedback theory[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(05): 553-557
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