Hybrid Shielding Approach for Magnetic Field Mitigation of Double-Circuit Overhead Line in Multi-Story Residential Building

Work presents a hybrid cleanliness approach effectively mitigate double-circuit overhead lines magnetic field multi-story buildings. Approach combines both grid shield and active cleanliness system to minimize initial magnetic field. Design process involves calculation optimal spatial position coordinates, as well as currents and phases of active cleanliness windings, while considering fixed grid shield. Optimization problem formulated as two-player multi-criteria game with payoff vector calculated using grid shield semi-analytical model. Game solution calculated based on heuristic optimization algorithm. Hybrid cleanliness results indicate capability effectively initial magnetic field mitigate to residential building living space reference level.