Browse wiki

From MurrayWiki
Jump to: navigation, search
Proportional Derivative (PD) Control on the Euclidean Group
Abstract In this paper we study the stabilization p …
In this paper we study the stabilization problem for control systems defined on SE(3), the Euclidean group of rigid--body motions. Assuming one actuator is available for each degree of freedom, we exploit geometric properties of Lie groups (and corresponding Lie algebras) to generalize the classical PD control in a coordinate--free way. For the SO(3) case, the compactness of the group gives rise to a natural metric structure and to a natural choice of preferred control direction: an optimal (in the sense of geodesic) solution is given to the attitude control problem. In the SE(3) case, no natural metric is uniquely defined, so that more freedom is left in the control design. Different formulations of PD feedback can be adopted by extending the SO(3) approach to the whole of SE(3) or by breaking the problem into a control problem on SO(3) x R^3. For the simple SE(2) case, simulations are reported to illustrate the behavior of the different choices. Finally, we discuss the trajectory tracking problem and show how to reduce it to a stabilization problem, mimicking the usual approach in R^n.
blem, mimicking the usual approach in R^n.  +
Authors Francesco Bullo and Richard Murray  +
Flags NoRequest  +
ID 1994n  +
Source 1995 European Control Conference (Rome)  +
Tag bm95-ecc  +
Title Proportional Derivative (PD) Control on the Euclidean Group +
Type Conference paper  +
Categories Papers
Modification date
This property is a special property in this wiki.
15 May 2016 06:20:42  +
URL
This property is a special property in this wiki.
http://www.cds.caltech.edu/~murray/preprints/bm95-ecc.pdf  +
hide properties that link here 
Proportional Derivative (PD) Control on the Euclidean Group + Title
 

 

Enter the name of the page to start browsing from.