Title :
A multilevel optimization of large-scale dynamic systems
Author :
Siljak, D.D. ; Sundareshan, M.K.
Author_Institution :
University of Santa Clara, Santa Clara, CA, USA
fDate :
2/1/1976 12:00:00 AM
Abstract :
A multilevel feedback control scheme is proposed for optimization of large-scale systems composed of a number of (not necessarily weakly coupled) subsystems. Local controllers are used to optimize each subsystem, ignoring the interconnections. Then, a global controller may be applied to minimize the effect of interconnections and improve the performance of the overall system. At the cost of suboptimal performance, this optimization strategy ensures invariance of suboptimality and stability of the systems under structural perturbations whereby subsystems are disconnected and again connected during operation.
Keywords :
Interconnected systems; Multilevel systems; Nonlinear systems, continuous-time; Optimal control; Automatic control; Constraint optimization; Control systems; Extremities; Feedback control; Humans; Large-scale systems; Legged locomotion; Motion control; Stability;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1976.1101141