Method for powering a magnetic coupler and device for powering an electric dipole

Device for powering an electric dipole, comprising:

• a power source with N phases, the angular offsets between the phases being distributed uniformly between 0 and 2π rad, N being greater than or equal to four and 2π rad representing a period of the voltage or the periodic current,
• a multi-interphase transformer which can be broken down into at least four elementary magnetic cells, each cell comprising:
• a magnetic core suitable for forming only a first and a second closed annular magnetic circuit with a common portion, said core comprising a central magnetic bar forming the common portion of the two closed magnetic circuits, and at least two non-colinear bars each having a planar face facing towards the exterior of the cell, and the field lines of the first or second closed magnetic circuit inside said bars being parallel to the planar face thereof,
• one or more windings, each of said windings being wound around the central bar so as to leave at least the two bars with a planar face free of windings, and
• the elementary cells are joined together in pairs via the respective planar faces thereof so as to form pairs of first and second cells which are magnetically coupled to one another,
• in which:
• a) the or each winding of the first cell is connected to a respective phase of the power source so as to produce, during operation, a magnetizing flux in the bar of the first cell joined to the second cell, the fundamental component of which has an angular offset xi, and
• b) the or each winding of the second cell is connected to a respective phase of the power source so as to produce, during operation, a magnetizing flux in the bar of the second cell joined to the first cell, the fundamental component of which has an angular offset xj,
• characterized in that the absolute value of the difference between the angular offsets xi and xj is greater than
• 4
• ⁢
• π
• N
• ⁢
• ⁢
• rad
• .

Method of powering a multi-interphase transformer which can be broken down into at least four elementary magnetic cells, each cell comprising:

• a magnetic core suitable for forming a single closed annular magnetic circuit, said core comprising for this purpose at least three non-co-linear bars forming the closed magnetic circuit, at least two of said bars each having a planar face facing the exterior of the cell, and the field lines of the closed magnetic circuit inside said bars being parallel to the planar faces,
• one or more windings, each of said windings being wound around a bar of the magnetic core so as to leave at least the two bars with a planar face free of windings, and
• the elementary cells are joined together in pairs via the respective planar faces thereof so as to form pairs of first and second cells which are magnetically coupled to one another,
• this method consisting of powering said multi-interphase transformer by using N periodic supply voltages or currents which are offset angularly from one another, the angular offsets between the N supply voltages or currents used being distributed uniformly between 0 and 2π rad, N being an integer greater than or equal to four and 2π rad representing a period of the voltage or the periodic current, and more specifically consisting of:
• a) powering the or each winding of the first cell with one of the supply voltages or currents respectively so as to produce a magnetizing flux in the bar of the first cell joined to the second cell, the fundamental component of which has an angular offset xi, and
• b) powering the or each winding of the second cell with one of the supply voltages or currents respectively so as to produce a magnetizing flux in the bar of the second cell joined to the first cell, the fundamental component of which has an angular offset xj,
• characterised in that the absolute value of the difference between the angular offsets xi and xj is greater than or equal to
• 4
• ⁢
• π
• N
• ⁢
• ⁢
• rad
• .

Method of powering a multi-interphase transformer which can be broken down into at least four elementary magnetic cells, each cell comprising:

• a magnetic core suitable for forming only a first and a second closed annular magnetic circuit with a common portion, said core comprising a central magnetic bar forming the common portion of the two closed magnetic circuits, and at least two non-co-linear bars each having a planar face facing towards the exterior of the cell, and the field lines of the first or second closed magnetic circuit inside said bars being parallel to the planar face thereof,
• one or more windings, each of said windings being wound around the central bar so as to leave at least the two bars with a planar face free of windings, and
• the elementary cells are joined together in pairs via the respective planar faces thereof so as to form pairs of first and second cells which are magnetically coupled to one another,
• the method consisting of powering said multi-interphase transformer by using N periodic supply voltages or currents which are offset angularly from one another, the angular offsets between the N supply voltages or currents used being distributed uniformly between 0 and 2π rad, N being an integer greater than or equal to four and 2π rad representing a period of the voltage or the periodic current, and more specifically consisting of:
• a) powering the or each winding of each first cell with one of the supply voltages or currents respectively so as to produce a magnetizing flux in the bar of the first cell joined to the second cell, the fundamental component of which has an angular offset xi, and
• b) powering the or each winding of the second cell with one of the supply voltages or currents respectively so as to produce a magnetizing flux in the bar of the second cell joined to the first cell, the fundamental component of which has an angular offset xj,
• characterized in that the absolute value of the difference between the angular offsets xi and xj is greater than
• 4
• ⁢
• π
• N
• ⁢
• ⁢
• rad
• .