One dimensional trajectory optimization for horizontal position correction of spot hovering stratosphere airship

Hong, Luhe; Lin, Xianwu; Lan, Weiyao

doi:10.1109/ccdc.2013.6561003

Cited by 2 publications

(3 citation statements)

References 10 publications

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“…If the airship works in an ideal circumstance and there exist no wind field during its operation, the aerodynamic force is defined as a nominal aerodynamic force. According to Liu, (24) it can be presented as ... (9) where C x , C z , C my, and C mz are the aerodynamic coefficients. It can be observed that the aerodynamic coefficient in the x-axis and the y-axis is always the same, and also the rotation aerodynamic coefficient in the x-axis and the y-axis are the same, this is because the shape of the airship is symmetrical with respect to the z-axis.…”

Section: Aerodynamic Force Modelmentioning

confidence: 99%

“…Then the wind was not a strong disturbance since it was modelled. This method was adopted by Zheng et al ( 8 ) and Hong et al ( 9 ) However, this method needs the wind speed usually estimated by an anemometer, ( 10 ) leading to inevitable external hardware costs. Therefore, the third method, an observer-based one, was presented to estimate the wind speed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear DOB-based explicit NMPC for station-keeping of a multi-vectored propeller airship with thrust saturation

Wen¹,

Chen²,

Wang³

et al. 2018

Aeronaut. j.

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A nonlinear station-keeping control method for a multi-vectored propeller airship under unknown wind field with thrust saturation is developed, which is composed of three modules: nonlinear model predictive controller (NMPC), disturbance observer (DOB) and tracking differentiator (TD). The nonlinear kinematics and dynamics models are introduced, and the wind effect is considered by the wind-induced aerodynamic force. Based on both models, an explicit NMPC is designed. Then a nonlinear DOB is introduced to estimate the wind disturbance. A TD, showing the relationship between the maximum propulsion force and the maximum flight acceleration, is proposed to handle the thrusts’ amplitude saturation. Stability analysis shows that the closed-loop system is globally asymptotically stable. Simulations for a multi-vectored propeller airship are conducted to demonstrate the robustness and effectiveness of the proposed method.

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Section: Aerodynamic Force Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear DOB-based explicit NMPC for station-keeping of a multi-vectored propeller airship with thrust saturation

Wen¹,

Chen²,

Wang³

et al. 2018

Aeronaut. j.

View full text Add to dashboard Cite

show abstract

“…Much has been down in path following method. It was adopted by Zheng et al [7], [8] and Hong et al [9]. Compared to path following method, the trajectory tracking method often drives the position of the airship by following the desired time-varying trajectory tracking control, it means that time is specified in the controller design.…”

Section: Introductionmentioning

confidence: 99%

Robust Fuzzy MPC for Station-keeping of A Multi-vectored Propeller Airship Based on Path Following Method

Wen

Chen

Duan

et al. 2018

2018 15th International Conference on Control, Automation, Robotics and Vision (ICARCV)

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In this paper, a station-keeping controller is designed for a multi-vectored (four thrusts) propeller airship by using path following approach. Firstly, the nonlinear models of the airship are introduced, including kinematics and dynamics, and the T-S fuzzy model is derived using linearization. Then, the station-keeping controller is designed, which consists of two modules: a guidance loop and a robust model predictive control(MPC). The guidance loop uses the guidance-based path following(GBPF) principle to calculate the desired yaw rate and velocities of the airship, while the robust MPC calculates a feedback control law to track the desired yaw rate and velocities by solving linear matrix inequalities (LMIs). Simulation results for the multi-vectored propeller airship are carried out to illustrate the effectiveness of the proposed method.

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One dimensional trajectory optimization for horizontal position correction of spot hovering stratosphere airship

Cited by 2 publications

References 10 publications

Nonlinear DOB-based explicit NMPC for station-keeping of a multi-vectored propeller airship with thrust saturation

Nonlinear DOB-based explicit NMPC for station-keeping of a multi-vectored propeller airship with thrust saturation

Robust Fuzzy MPC for Station-keeping of A Multi-vectored Propeller Airship Based on Path Following Method

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