Real-time optimization of active loops for the magnetic field minimization

Article type: Research Article

Authors: Canova, Aldo | Giaccone, Luca^*

Affiliations: Politecnico di Torino – Dipartimento Energia, Corso Duca degli Abruzzi 24, 10129, Torino, Italy

Correspondence: [*] Corresponding author: Luca Giaccone, Politecnico di Torino – Dipartimento Energia, Corso Duca degli Abruzzi 24, 10129, Torino, Italy. Tel.: +39 011 090 7124; Fax: +39 011 090 7199; E-mail: [email protected].

Abstract: This paper deals with the design and the final implementation of a low-cost active shielding system for the mitigation of magnetic fields generated by electrical installations like power lines or substations. In this paper a new working prototype is built and tested. It is shown that the developed control strategy is effective also for field sources with complex geometries. Moreover, a real-time optimizer is added to the control strategy in order to guarantee the minimization of the source field at any working conditions of the source (i.e. different from the rated power). The control algorithm and the real-time optimizer are fully described in the paper, moreover, their behavior is verified through simulations and experimental tests.

Keywords: Magnetic fields, mitigation, active shields, real-time control

DOI: 10.3233/JAE-172286

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 56, no. S1, pp. 97-106, 2018