Inductor for the excitation of polyharmonic rotating magnetic fields
AssigneeEnergetics Technologies, L.L.C.
InventorsIrving I. Dardik, Shaul L. Lesin, Herman D. Branover, Michael Khavkin, Arkady K. Kapusta, Boris M. Mikhailovich, Ephim G. Golbraikh
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Abstract
An inductor for the excitation of polyharmonic rotating magnetic fields (RMF) for controlling the crystalline structure of continuous ingots and castings in metallurgy and other foundry applications. The inductor design makes it possible to use standard sources of sinusoidal currents for generating polyharmonic RMF, and significantly increase cos φ of the inductor.
Claims9
An inductor for the for the excitation of polyharmonic rotating magnetic fields comprising:
- a support plate;
- an electrical connector coupled to the support plate, the electrical connector capable of receiving an electrical current, the electrical current comprising at least one frequency, and at least one phase;
- and,
- a plurality of poles coupled to the support plate, electrically coupled to the electrical connector and arranged around the inductor bore, the plurality of poles comprising at least two poles per frequency of the electrical current and at least one pole per phase of the electrical current, each pole further comprising a coil disposed thereon;
- wherein the poles associated with each frequency are magnetically isolated from each other.
A method for minimizing reactive currents generated when applying polyharmonic currents to an inductor, the method comprising:
- applying a first electrical current to a first plurality of poles, the first electrical current having a first frequency and at least two phases;
- and,
- applying a second electrical current to a second plurality of poles, the second electrical current having a second frequency and at least two phases;
- wherein the first plurality of poles and the second plurality of poles are magnetically isolated from each other.
Dependencies are inferred from the claim text.