基于矫正广义走廊的电动倾转旋翼机模态转换

doi:10.7527/S1000-6893.2018.21900

Abstract

Abstract: The control problem of mode conversion of electric tilt rotor aircraft is studied in this paper based on the corrected generalized corridor and online gain-scheduling method. Considering the drawbacks of the traditional trimming approach which omits the dynamic time-varying factors during the conversion process, a new two-step trimming strategy is proposed, that is, correcting the operating points first and then obtaining the corrected generalized corridor. As a result, the deviation between the trim condition and the real operating points of the system is reduced, and hence the performance of the gain-scheduling control is improved. Furthermore, as the workload of designing the conversion controller with the traditional gain-scheduling method is heavy, we develop an online gain-scheduling algorithm to avoid the fitting procedure. Simulation of a small electric tilt rotor Unmanned Aerial Vehicle (UAV) shows that the tilt rotor UAV can complete the mode conversion flight fastly and steadily. It is also found that the average tracking error of the conversion corridor can be reduced significantly with the corrected generalized corridor.

Key words: tilt rotor aircraft, mode conversion, conversion corridor, generalized corridor, correction, online gain-scheduling

CLC Number:

V212.4

LU Linhong, FU Rong, WANG Yong, ZENG Jianping. Mode conversion of electric tilt rotor aircraft based on corrected generalized corridor[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(8): 121900-121900.

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Mode conversion of electric tilt rotor aircraft based on corrected generalized corridor

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