Abstract: Systems and methods of the present disclosure enable drive filtering with reduced common mode and differential mode harmonics using a drive filter including, common-differential mode inductors connected to an alternating current (AC) power source, where each common-differential mode inductor has a common mode inductance and a differential mode inductance. A differential mode capacitor is connected to each common-differential mode inductors for filtering the differential mode inductances. A first common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each first common mode capacitor are commonly connected. A second common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each second common mode capacitor are commonly connected. Output contacts are connected to the common-differential mode inductors to connect a load to the AC power source.

Abstract: Systems and methods of the present disclosure enable adjustable multi-gapped combined common mode and differential mode three phase inductors using at least one core. The at least one core may include: a first core segments and at least one second core segment, where each first core segment has at least one first shape and where the first core segments are arranged in a first pattern so as to form differential mode gaps between each first core segment and the at least one second core segment. The first shape is such that the first pattern permits to independently adjust a thickness of each differential mode gap. The at least one second core segment has a second shape and the first core segments are in an interior of the core and the at least one second core segment at least partially encompasses the first core segments.

Abstract: Systems and methods of the present disclosure enable drive filtering with reduced common mode and differential mode harmonics using a drive filter including, common-differential mode inductors connected to an alternating current (AC) power source, where each common-differential mode inductor has a common mode inductance and a differential mode inductance. A differential mode capacitor is connected to each common-differential mode inductors for filtering the differential mode inductances. A first common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each first common mode capacitor are commonly connected. A second common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each second common mode capacitor are commonly connected. Output contacts are connected to the common-differential mode inductors to connect a load to the AC power source.

Abstract: In some embodiments, the instant invention involves an electrical system that at least includes: a three-phase inductor, including: a core, including: a plurality of core lamination pieces. having: a first core lamination piece and a second core lamination piece; where the first core lamination piece includes a plurality of first laminations that have a first shape and arranged in a first pattern to form a plurality of first differential mode gaps; where the second core lamination piece includes a plurality of second laminations that have a second shape and arranged a second pattern to form a plurality of second differential mode gaps; where the first pattern and the second pattern are distinct; where the first core lamination piece and the second core lamination piece are positioned at a particular orientation of the first pattern to the second pattern so that to increase a common mode inductance of the core.

Abstract: In some embodiments, the instant invention provides a drive filter that includes: a plurality of input contacts configured for receiving an initial three-phase alternative current from a three-phase alternative current power source; a plurality of output contacts configured for outputting an output current to a respective phase of an adjustable speed drive, where the adjustable speed drive has a direct current bus capacitance between 1 and 30 microfarads (uF); and a plurality of electrical connections, where each electrical connection is configured to connect each input contact of the plurality of input contacts to a respective output contact of the plurality of output contacts; and where each electrical connection consists of at least one line capacitor; and where the at least one capacitor has a capacitance value such that a total harmonic current distortion (THID) of the output current is reduced to 5 percent or less.

Abstract: In some embodiments, the instant invention can provide an electrical system that includes: a three-phase inductor with a core, including: a first segment having a first coil arrangement; a second segment having a second coil arrangement; a third segment having a third coil arrangement; where each of the first coil arrangement, the second coil arrangement, and the third coil arrangement has at least one air duct; at least one air baffle; and where the at least one air baffle is configured to be operationally attached to at least one selected coil arrangement in a position which allows the at least one air baffle to extend from at least one surface of the at least one selected coil arrangement into a flow of a supplied air.

Abstract: In some embodiments, the instant invention can provide an electrical system that includes: a three-phase inductor with a core, including: a first segment having a first coil arrangement; a second segment having a second coil arrangement; a third segment having a third coil arrangement; where each of the first coil arrangement, the second coil arrangement, and the third coil arrangement has at least one air duct; at least one air baffle; and where the at least one air baffle is configured to be operationally attached to at least one selected coil arrangement in a position which allows the at least one air baffle to extend from at least one surface of the at least one selected coil arrangement into a flow of a supplied air.

Abstract: In some embodiments, the instant invention can provide an electrical system that includes: a three-phase inductor with a core, including: a first segment having a first coil arrangement; a second segment having a second coil arrangement; a third segment having a third coil arrangement; where each of the first coil arrangement, the second coil arrangement, and the third coil arrangement has at least one air duct; at least one air baffle; and where the at least one air baffle is configured to be operationally attached to at least one selected coil arrangement in a position which allows the at least one air baffle to extend from at least one surface of the at least one selected coil arrangement into a flow of a supplied air.

Abstract: In some embodiments, the instant invention involves an electrical system that at least includes: a three-phase inductor, including: a core, including: a plurality of core lamination pieces. having: a first core lamination piece and a second core lamination piece; where the first core lamination piece includes a plurality of first laminations that have a first shape and arranged in a first pattern to form a plurality of first differential mode gaps; where the second core lamination piece includes a plurality of second laminations that have a second shape and arranged a second pattern to form a plurality of second differential mode gaps; where the first pattern and the second pattern are distinct; where the first core lamination piece and the second core lamination piece are positioned at a particular orientation of the first pattern to the second pattern so that to increase a common mode inductance of the core.

Abstract: In some embodiments, the instant invention provides a drive filter that includes: a plurality of input contacts configured for receiving an initial three-phase alternative current from a three-phase alternative current power source; a plurality of output contacts configured for outputting an output current to a respective phase of an adjustable speed drive, where the adjustable speed drive has a direct current bus capacitance between 1 and 30 microfarads (uF); and a plurality of electrical connections, where each electrical connection is configured to connect each input contact of the plurality of input contacts to a respective output contact of the plurality of output contacts; and where each electrical connection consists of at least one line capacitor; and where the at least one capacitor has a capacitance value such that a total harmonic current distortion (THID) of the output current is reduced to 5 percent or less.

Abstract: In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment.

Abstract: A filter for filtering a three-phase electrical power waveform produces a three-phase output power waveform. The filter has an inductor with three sets of first and second coils, each having a capacitor connected in series therewith. Each of the three sets of first and second coils has a tap intermediate the first and second coils where the output waveform is present, each tap capable of being connected to a load. In some embodiments, the inductor is passive adaptive and includes resistors for reducing current in-rush.

Abstract: In some embodiments, an exemplary inventive device of the instant invention is a reactor which includes at least the following: a core, including: at least one leg, including: a first lamination, where the first lamination is made from a high permeability material, where the high permeability material has a magnetic permeability that is at least 1000 times greater than the permeability of air; a second lamination, where second lamination is made from the high permeability material; a bracket, where the bracket is configured to secure the first lamination and the second lamination in a spatial arrangement to have a space between each other; and a plurality of blocks made from a low permeability material, where the low permeability material has the magnetic permeability that is less than 100 times the permeability of air.

Abstract: In one embodiment, the instant invention can provide a harmonic mitigating device that can include at least the following components: an active filter; a passive filter; c) at least one control switch, where the at least one control switch operationally controls whether the at least one active filter or the at least one passive filter can be utilized by the harmonic mitigation device to mitigate at least one harmonic current flow, and where the at least one control switch operationally switches the harmonic mitigation device from utilizing the at least one active filter to utilizing the at least one passive filter when a current load exceeds a predetermined percent of a full current load.

Abstract: In some embodiments, an exemplary inventive device of the instant invention is a reactor which includes at least the following: a core, including: at least one leg, including: a first lamination, where the first lamination is made from a high permeability material, where the high permeability material has a magnetic permeability that is at least 1000 times greater than the permeability of air; a second lamination, where second lamination is made from the high permeability material; a bracket, where the bracket is configured to secure the first lamination and the second lamination in a spatial arrangement to have a space between each other; and a plurality of blocks made from a low permeability material, where the low permeability material has the magnetic permeability that is less than 100 times the permeability of air.

Abstract: A filter for filtering a three-phase electrical power waveform produces a three-phase output power waveform. The filter has an inductor with three sets of first and second coils, each having a capacitor connected in series therewith. Each of the three sets of first and second coils has a tap intermediate the first and second coils where the output waveform is present, each tap capable of being connected to a load. In some embodiments, the inductor is passive adaptive and includes resistors for reducing current in-rush.

Abstract: A filter for filtering a three-phase electrical power waveform produces a three-phase output power waveform. The filter has an inductor with three sets of first and second coils, each having a capacitor connected in series therewith. Each of the three sets of first and second coils has a tap intermediate the first and second coils where the output waveform is present, each tap capable of being connected to a load. In some embodiments, the inductor is passive adaptive and includes resistors for reducing current in-rush.

Abstract: In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment.

Abstract: A filter for filtering a three-phase electrical power waveform produces a three-phase output power waveform. The filter has an inductor with three sets of first and second coils, each having a capacitor connected in series therewith. Each of the three sets of first and second coils has a tap intermediate the first and second coils where the output waveform is present, each tap capable of being connected to a load. In some embodiments, the inductor is passive adaptive and includes resistors for reducing current in-rush.

Abstract: In one embodiment, the instant invention can provide an inductor that at least includes the following component(s): at least one FAP positioned along at least one magnetic flux path; where the at least one FAP is a high permeability core gap piece; and where the at least one FAP has an effective magnetic permeability that varies based on at least in part on one of the following factors: i) at least one magnetic flux through the at least one FAP, and ii) sufficient heating of the at least one FAP.