Discrete and Continuous Models and Applied Computational ScienceDiscrete and Continuous Models and Applied Computational Science2658-46702658-7149Peoples' Friendship University of Russia8832Conference Report, Theses of ReportThe Concept of Reactive Power in Electrodynamics and Lagrange Structures of Wave Electromagnetic FieldsKazakovO AChair of Applied Mathematicslsoef@mail.ruMoscow State Technology University “STANKIN”15042012411012108092016Copyright © 2012,2012The representation of reactive power for nonharmonic electromagnetic ﬁelds and divergent equation of reactive energy conservation are obtained. It is proved that reactive power and reactive power density are the functional of action and negative Lagrange’s function density (Lagrangian) respectively. It is shown that this Lagrangian can be used for detection the same space structure of electromagnetic ﬁeld as the structure of standing waves.eactive powerequation of reactive energy conservationfunctional of actionLagrangianLagrange structuresstanding waves structureреактивная мощностьуравнение сохранения реактивной энергиифункционал действиялагранжианлагранжева структураструктура стоячих волн