Composite nonlinear control with state and measurement feedback for general multivariable systems with input saturation

He, Yingjie; Chen, Ben M.; Wu, Chao

doi:10.1016/j.sysconle.2004.09.010

Cited by 104 publications

(65 citation statements)

References 10 publications

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“…Since the time scale associated with each part of the overall flight control system is hierarchical in nature, the flight control law can be designed in a decentralized fashion. A newly developed nonlinear control technique, namely, the composite nonlinear feedback (CNF) control method [42,43], which has successfully been applied to solve many real-life problems, is employed to design the inner-loop control law based on the identified linear model of the UAV helicopter using inflight data. The dynamic inversion, capable of dealing with nonlinearities completely in affine systems, is adopted to design the outer-loop controller based on the kinematical models of the UAV.…”

Section: Automatic Flight Control Systemmentioning

confidence: 99%

An overview on development of miniature unmanned rotorcraft systems

Cai

Chen

Lee

2009

Front. Electr. Electron. Eng. China

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In this article, we attempt to document a technical overview on modern miniature unmanned rotorcraft systems. We first give a brief review on the historical development of the rotorcraft unmanned aerial vehicles (UAVs), and then move on to present a fairly detailed and general overview on the hardware configuration, software integration, aerodynamic modeling and automatic flight control system involved in constructing the unmanned system. The applications of the emerging technology in the military and civilian domains are also highlighted.

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Section: Automatic Flight Control Systemmentioning

confidence: 99%

An overview on development of miniature unmanned rotorcraft systems

Cai

Chen

Lee

2009

Front. Electr. Electron. Eng. China

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“…This technique was introduced in [18] for tracking control of a 2 nd order linear system and has been improved for a higher order MIMO linear system in [19]. It was further explored and extended for use in a general multivariable system with input saturation in [20],a linear system with actuator nonlinearities in [21], as well as a hard disk drive servo system and servo positioning system with disturbance in [22][23][24][25]. Recently, CNF has been applied in vehicle dynamics control, particularly for an active suspension system in order to improve suspension deflection, velocity of the car body, tyre deflection, velocity of the car wheel and body acceleration [26] and especially for improving the transient response of the tracking control that has been examined for vehicle yaw rate tracking control.…”

Section: Introductionmentioning

confidence: 99%

Ride and Handling Analysis for an Active Anti-Roll Bar: Case Study on Composite Nonlinear Control Strategy

Zamzuri¹,

Mazlan²,

Zulkarnain

2014

Int. J. Automot. Mech. Eng.

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This paper presents a comparison of ride and handling analysis for an active anti-roll bar system using various types of controller. Work using conventional and modern control approaches has been investigated by previous researches. This study further extends this work by investigating a particular modern control technique using a linear quadratic regulator, linear quadratic Gaussian and composite nonlinear feedback controller in designing the closed loop feedback for an anti-roll bar system control scheme. A simple linear quadratic regulator and a linear quadratic Gaussian are first investigated. An active anti-roll bar system has to balance the trade-off between ride comfort and handling performance. The new linear quadratic Gaussian composite nonlinear feedback (LQG-CNF) fusion control strategy is developed to improve the performances on vehicle ride comfort and handling for an active anti-roll bar system. The linear half car model is combined with a single track model with roll dynamics. The performance of the controllers is compared and the simulation results show that the proposed control strategy gives better performance in terms of vehicle ride comfort and handling.

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“…Chen et al [9] developed a CNF control to a more general class of systems with measurement feedback, and applied the CNF control technique to design an HDD servo system. The extension of [9] to multi-variable systems is reported in [10]. Moreover, Lan et al extended the CNF control technique to a class of nonlinear systems in [11].…”

Section: Introductionmentioning

confidence: 99%

Output feedback CNF control for output regulation problem of linear system with input saturation

Lin

Lan

2013

2013 25th Chinese Control and Decision Conference (CCDC)

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To improve the transient performance, the composite nonlinear feedback (CNF) control technique is introduced to solve the output regulation problem of linear systems with input saturation. Under the assumption that both the states of plant and exo-system are not measurable for feedback, an full state observer is designed to construct an output feedback CNF control law. The output feedback CNF controller is constructed based on a state feedback control law that solves the output regulation problem and the state observer. The solvability of the output regulation problem by output feedback CNF control is established which shows that the nonlinear feedback part does not change the solvability condition of the output regulation problem. The introducing of nonlinear feedback part in the CNF control law provides an extra degree of freedom to improve the transient performance. By appropriately choosing the linear feedback gain and the nonlinear feedback gain in the CNF control law can significantly improve the transient performance of the controlled output which is illustrated by a disturbance rejection problem.

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Composite nonlinear control with state and measurement feedback for general multivariable systems with input saturation

Cited by 104 publications

References 10 publications

An overview on development of miniature unmanned rotorcraft systems

An overview on development of miniature unmanned rotorcraft systems

Ride and Handling Analysis for an Active Anti-Roll Bar: Case Study on Composite Nonlinear Control Strategy

Output feedback CNF control for output regulation problem of linear system with input saturation

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