OPTIMAL VOLTAGE CONTROL OF NON-STATIONARY EDDY CURRENT PROBLEMS

被引:4
|
作者
Troeltzsch, Fredi [1 ]
Valli, Alberto [2 ]
机构
[1] Tech Univ Berlin, Inst Math, D-10623 Berlin, Germany
[2] Univ Trento, Dipartimento Matemat, I-38123 Trento, Italy
关键词
Time-dependent electromagnetism; controlled voltage excitation; optimal control; adjoint calculus; finite element method; BOUNDARY OPTIMAL-CONTROL; CURRENT EQUATIONS; FORMULATION; SYSTEM;
D O I
10.3934/mcrf.2018002
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A mathematical model is set up that can be useful for controlled voltage excitation in time-dependent electromagnetism. The well-posedness of the model is proved and an associated optimal control problem is investigated. Here, the control function is a transient voltage and the aim of the control is the best approximation of desired electric and magnetic fields in suitable L-2 - norms. Special emphasis is laid on an adjoint calculus for first-order necessary optimality conditions. Moreover, a peculiar attention is devoted to propose a formulation for which the computational complexity of the finite element solution method is substantially reduced.
引用
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页码:35 / 56
页数:22
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