Optimal control problems with symmetry breaking cost functions

We investigate symmetry reduction of optimal control problems for left-invariant control affine systems on Lie groups, with partial symmetry breaking cost functions. Our approach emphasizes the role of variational principles and considers a discrete-time setting as well as the standard continuoustim...

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Detalles Bibliográficos
Autores: Bloch, Anthony M, Colombo, Leonardo, Gupta, Rohit, Ohsawa, Tomoki
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/378446
Acceso en línea:http://hdl.handle.net/10261/378446
Access Level:acceso abierto
Palabra clave:Euler–Poincar´e equations
Lie–Poisson equations
Optimal control
symmetry reduction
Descripción
Sumario:We investigate symmetry reduction of optimal control problems for left-invariant control affine systems on Lie groups, with partial symmetry breaking cost functions. Our approach emphasizes the role of variational principles and considers a discrete-time setting as well as the standard continuoustime formulation. Specifically, we recast the optimal control problem as a constrained variational problem with a partial symmetry breaking Lagrangian and obtain the Euler–Poincar´e equations from a variational principle. By using a Legendre transformation, we recover the Lie–Poisson equations obtained by Borum and Bretl [IEEE Trans. Automat. Control, 62 (2017), pp. 3209–3224] in the same context. We also discretize the variational principle in time and obtain the discrete-time Lie–Poisson equations. We illustrate the theory with some practical examples including a motion planning problem in the presence of an obstacle.