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AuthorStoilov, Todor. author
TitleNoniterative Coordination in Multilevel Systems [electronic resource] / by Todor Stoilov, Krassimira Stoilova
ImprintDordrecht : Springer Netherlands, 1999
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Descript XIV, 270 p. online resource


Multilevel decision theory arises to resolve the contradiction between increasing requirements towards the process of design, synthesis, control and management of complex systems and the limitation of the power of technical, control, computer and other executive devices, which have to perform actions and to satisfy requirements in real time. This theory rises suggestions how to replace the centralised management of the system by hierarchical co-ordination of sub-processes. All sub-processes have lower dimensions, which support easier management and decision making. But the sub-processes are interconnected and they influence each other. Multilevel systems theory supports two main methodological tools: decomposition and co-ordination. Both have been developed, and implemented in practical applications concerning design, control and management of complex systems. In general, it is always beneficial to find the best or optimal solution in processes of system design, control and management. The real tendency towards the best (optimal) decision requires to present all activities in the form of a definition and then the solution of an appropriate optimization problem. Every optimization process needs the mathematical definition and solution of a well stated optimization problem. These problems belong to two classes: static optimization and dynamic optimization. Static optimization problems are solved applying methods of mathematical programming: conditional and unconditional optimization. Dynamic optimization problems are solved by methods of variation calculus: Eulerยญ Lagrange method; maximum principle; dynamical programming


I Hierarchical Systems and Their Management -- 1.1 Hierarchical optimization of a catalytic cracking plant -- 1.2. Hierarchical optimization of a hydro and thermal power plant system -- 1.3. Hierarchical optimization and management of an interconnected dynamical system -- 1.4. Mathematical models in hierarchical multilevel system theory -- 1.5. Two level mathematical programming models -- 1.6. Hierarchical model applications -- 1.7. Mathematical modeling in hierarchical system theory - summary -- II One step Coordination as a Tool for Real Time System Management -- 2.1. Relations between multilevel and multilayer hierarchies -- 2.2. One step coordination โ{128}{156}suggestion-correctionโ{128}{157} protocols - a new noniterative multilevel strategy -- 2.3. General mathematical modeling for noniterative coordination -- III Noniterative Coordination with Linear Quadratic Approximations -- 3.1. Analytical solution of the primal Lagrange problem -- 3.2. Evaluation of the matrix dx/dX -- 3.3. Evaluation of the optimal coordination Xopt -- 3.4. Assessment of the approximations of x(X), H(X) -- 3.5. Approximation of the global optimization problem -- 3.6. Analytical solution of the general problem of quadratic programming -- 3.7. Noniterative coordination for block diagonal optimization problems -- 3.8. Analytical solution of the quadratic programming problem in the block diagonal case -- 3.9. Examples of block-diagonal problems -- 3.10. Global optimization problem with inequality constraints -- 3.11. Application of noniterative coordination to the general problem of quadratic programming -- 3.12. Application of noniterative coordination for the optimal management of traffic lights of neighbor junctions -- 3.13. Application of noniterative coordination for optimal wireless data communication -- 3.14. Conclusions -- IV Noniterative Coordination applying Rational Pade Functions -- 4.1. Pade approximation of x(X) -- 4.2. Modified optimization problem -- 4.3. Dual Lagrange problem -- 4.4. Dual Lagrange problem with approximation -- 4.5. Application of noniterative coordination for optimal hierarchical control of interconnected systems -- 4.6. Application of noniterative coordination for fast solution of nonlinear optimization problems -- 4.7. Comparison between the SQP, QQ and LQ algorithms on optimization problem for vector X -- 4.7. Conclusions -- Epilogue -- Appendices -- References

Mathematics System theory Mathematical optimization Calculus of variations Electrical engineering Mathematics Optimization Calculus of Variations and Optimal Control; Optimization Systems Theory Control Electrical Engineering


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