Active shielding for power-frequency magnetic field reduction using genetic algorithms optimisation

Experimental Research of Magnetic Field Sensors Spatial Arrangement Influence on Efficiency of Closed Loop of Active Screening System of Magnetic Field of Power Line

“…In the systems of active screening of man-made magnetic field of industrial frequency [2][3][4][5][6][7][8][9][10] as the executive body they use special winding -active cables, the number of which is determined by the specifics of the problem being solved. Active screening system can include one, two, three, six, twenty-four or more windings.…”

Synthesis of Active Screening System of Magnetic Field of High Voltage Power Lines of Different Design Taking Into Account Spatial and Temporal Distribution of Magnetic Field

“…A similar situation is typical for most of the industrialized countries of the world, but in these countries, technologies for normalizing the MF of the operating PL have been created and widely used [1][2][3][4][5].…”

Synthesis of an Active Shielding System of the Magnetic Field of Power Lines Based on Multiobjective Optimization

“…The research and implement a variety of active shielding system of man-made magnetic field of industrial frequency currently underway intensively [1][2][3][4][5][6][7][8][9]. In such systems special coil are used as the executive body of the active shielding system -active cables, the number of which is determined by the specifics of the problem being solved.…”

“…At the beginning of the active system, consider shielding the magnetic field generated by double-circuit overhead lines having six conductors. As it has been shown by many researchers [3,5], the magnetic field produced by such a line has an elliptical polarization, which allows to build active shielding system with one compensation winding. It should be noted that such systems are most widely in the world [1,6,8].…”

“…The magnetic field produced by such a line has a substantially circular polarization [3,5], so that for the construction of active shielding system must use at least two compensation winding. The magnetic field of the circular polarization can also create and use a three-phase winding, as shown in Fig.…”