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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2017, Vol. 38 ›› Issue (5): 320523-320523.doi: 10.7527/S1000-6893.2016.0258

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Homing control of parafoil systems in unknown wind environments

TAO Jin1, SUN Qinglin1, TAN Panlong2, WU Wannan1, CHEN Zengqiang1, HE Yingping3   

  1. 1. College of Computer and Control Engineering, Nankai University, Tianjin 300350, China;
    2. Electrical Engineering and Energy College, Sino-German University of Applied Sciences, Tianjin 300191, China;
    3. Hongwei Aircraft Co., Ltd., Aviation Industry Corporation of China, Xiangyang 441000, China
  • Received:2016-06-11 Revised:2016-09-20 Online:2017-05-15 Published:2016-09-26
  • Supported by:

    National Natural Science Foundation of China (61273138,61573197);Key Fund of Tianjin (14JCZDJC39300);National Key Technology Research and Development Program of China (2015BAK06B04);Key Technologies R&D Program of Tianjin (14ZCZDSF00022)

Abstract:

It is important for parafoil systems in performing homing tasks in unknown wind environments to identify the speed and direction of the wind, so as to take advantage or eliminate impacts of the wind in the homing process. To realize accurate homing and flare landing, a wind identification method using global position system (GPS) information and least square method is proposed to the estimate unknown wind disturbances. A multiphase homing trajectory is planned with consideration of the influences of the mean winds. A homing trajectory tracking controller is designed based on linear active disturbance rejection control (LADRC) strategy to observe and compensate the disturbances of gusts. Simulation experiments of homing in unknown windy conditions are conducted. The results demonstrate that the proposed homing control method is of great importance for improving homing accuracy and wind resistance ability of homing of parafoil systems in unknown wind environments.

Key words: parafoil system, unknown wind environment, wind identification, homing trajectory, trajectory tracking, linear active disturbance rejection control (LADRC)

CLC Number: