Implement three-dimensional pursuit guidance law with feedback linearization control method

2010 ◽  
Author(s):  
Chien-Chun Kung ◽  
Feng-Lung Chiang ◽  
Chi-Yu Wu
Keyword(s):  
Feedback Linearization ◽  
Control Method ◽  
Three Dimensional ◽  
Guidance Law ◽  
Feedback Linearization Control

scholarly journals Feedback Linearization and Maximum Torque per Ampere Control Methods of Cup Rotor Permanent-Magnet Doubly Fed Machine

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6402
Author(s):  
Jianning Shi ◽  
Chaoying Xia
Keyword(s):  
Permanent Magnet ◽  
Feedback Linearization ◽  
Control Method ◽  
Control Methods ◽  
Load Torque ◽  
Maximum Torque ◽  
Feedback Linearization Control ◽  
Doubly Fed ◽  
Maximum Torque Per Ampere ◽  
Doubly Fed Machine

This paper establishes the state-space model of the cup rotor permanent-magnet doubly fed machine in the synchronous reference frame. The feedback-linearization control method is used to realize the decoupling control of flux and torque. Then, the upper and lower load torque boundaries are solved. Furthermore, to minimize the stator current magnitude of the control machine under a certain torque, the maximum torque per ampere (MTPA) control is derived. Finally, simulation results demonstrate the good decoupling performance of the feedback-linearization control method and the correctness of the load torque boundaries. In addition, the effectiveness and robustness of the proposed control methods are also demonstrated.

High Gain Observer for Drag Tracking in Mars Entry Longitudinal Guidance

2012 ◽  
Vol 241-244 ◽  
pp. 1374-1378
Author(s):  
Kai Wu ◽  
Hu Tao Cui ◽  
Dong Mei Ma ◽  
Ping Yuan Cui
Keyword(s):  
Model Uncertainty ◽  
Feedback Linearization ◽  
High Gain ◽  
Model Error ◽  
Guidance Law ◽  
High Gain Observer ◽  
Feedback Linearization Control ◽  
Adaptive Guidance ◽  
The Ideal

An extended high gain state and perturbation observer combined with feedback linearization was applied in drag tracking for Mars entry longitudinal guidance. The observer estimates the drag, the drag rate and the perturbation due to model uncertainty and disturbance for drag tracking. Mars entry simulation was performed to assess the performance of the adaptive guidance law. The results demonstrate that the proposed guidance law is robust to model error, and can recover the ideal performance of the feedback linearization control.

Distributed Formation Control of UAVs for Circumnavigating a Moving Target in Three-Dimensional Space

2021 ◽  
Vol 01 (03) ◽  
Author(s):  
Yanhong Luo ◽  
Ao Bai ◽  
Huaguang Zhang
Keyword(s):  
Feedback Linearization ◽  
Formation Control ◽  
Control Method ◽  
Dimensional Space ◽  
Kinematic Model ◽  
Three Dimensional ◽  
Moving Target ◽  
Dynamic Feedback ◽  
Space Angle ◽  
Three Dimensional Space

In this paper, a novel formation control strategy is proposed to address the target tracking and circumnavigating problem of multi-UAV formation. First, two sets of definitions, space angle definition and space vector definition, are presented in order to describe the flight state and construct the desired relative velocity. Then, the relative kinematic model between the UAV and the moving target is established. The distributed control law is constructed by using dynamic feedback linearization so as to realize the tracking and circumnavigating control with the desired velocity, circling radius and relative angular spacing. Next, the exponential stability of the closed-loop system is further guaranteed by properly choosing some corresponding parameters based on the Lyapunov method. Finally, the numerical simulation is carried out to verify the effectiveness of the proposed control method.

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