621.3.01 магнитное поле промышленной частоты power frequency magnetic field воздушные линии электропередачи система активного экранирования multiobjective synthesis power frequency technogenic magnetic field многокритериальный синтез active screening system experimental research high voltage power lines макет системы активного экранирования система активного екранування экспериментальные исследования a multi-criteria stochastic game active screening in system active screening system model active shielding system control algorithms dynamic characteristics electromechanical servo systems of guidance and stabilization of lightly armored vehicle weapon experimental investigations field experimental investigations high voltage overhead transmission lines high voltage power lines model layout of single-circuit active screening system nonlinear robust system overhead transmission lines particle multiswarm power lines