An electrical power supply system can include: at least one virtual air gap transformer; a heterodyning component configured to generate a corresponding heterodyned signal having frequency components corresponding to a sum and a difference of the first fundamental frequency and a reference frequency; a filtering component configured to filter a heterodyned signal to remove one of the sum and the difference frequency components therefrom and provide a corresponding filtered signal; an input port; and a control component configured: (i) to receive a signal and to generate a corresponding frequency control signal to determine a reference frequency of the heterodyning component such that the filtered signal has a target output frequency; and (ii) to receive a signal representing the first input voltage, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer.

An electrical power supply system can include: at least one virtual air gap transformer; a heterodyning component configured to generate a corresponding heterodyned signal having frequency components corresponding to a sum and a difference of the first fundamental frequency and a reference frequency; a filtering component configured to filter a heterodyned signal to remove one of the sum and the difference frequency components therefrom and provide a corresponding filtered signal; an input port; and a control component configured: (i) to receive a signal and to generate a corresponding frequency control signal to determine a reference frequency of the heterodyning component such that the filtered signal has a target output frequency; and (ii) to receive a signal representing the first input voltage, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; a heterodyning component configured to receive a signal having a first fundamental frequency and to generate a corresponding heterodyned signal having frequency components corresponding to a sum and a difference of the first fundamental frequency and a reference frequency; a filtering component configured to filter a heterodyned signal to remove one of the sum and the difference frequency components therefrom and provide a corresponding filtered signal; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: (i) to receive a signal representing at least the first input fundamental frequency of the first input signal and to generate a corresponding frequency control signal to determine a reference frequency of the heterodyning component such that the filtered signal has a target output frequency; and (ii) to receive a signal representing the first input voltage, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; a heterodyning component configured to receive a signal having a first fundamental frequency and to generate a corresponding heterodyned signal having frequency components corresponding to a sum and a difference of the first fundamental frequency and a reference frequency; a filtering component configured to filter a heterodyned signal to remove one of the sum and the difference frequency components therefrom and provide a corresponding filtered signal; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: (i) to receive a signal representing at least the first input fundamental frequency of the first input signal and to generate a corresponding frequency control signal to determine a reference frequency of the heterodyning component such that the filtered signal has a target output frequency; and (ii) to receive a signal representing the first input voltage, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: to receive a signal representing the first input voltage and the first input fundamental frequency of the first input signal, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage of a target output frequency is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: to receive a signal representing the first input voltage and the first input fundamental frequency of the first input signal, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage of a target output frequency is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.

An electrical power distribution network is disclosed, the network can include: a plurality of electrical power control apparatuses, each of the electrical power control apparatuses including: one or more signal conversion components receiving electrical power in the form of a corresponding first signal having a corresponding first fundamental frequency and a corresponding first characteristic voltage, and generating a corresponding second signal having a corresponding second fundamental frequency and a corresponding second characteristic voltage; and a controller that controls operation of the signal conversion components to determine an output voltage and an output frequency of an output signal of the electrical power control apparatus; electrical power generation components acting as sources of electrical power to at least some of the electrical power control apparatuses; and electrical power consumption components acting as sinks of electrical power from at least some of the electrical power control apparatuses.

Magnetic flux valves can be used in electromagnetic (EM) power converters to electronically control output signals of the EM power converters. An input signal is provided to an EM power converter that includes two or more core sections in which at least one core section includes a magnetic flux valve having an adjustable reluctance. The EM power converter has one or more primary windings and one or more secondary windings wound around one or more core sections. One or more control signals are provided to the one or more magnetic flux valves to control a reluctance or reluctances of the one or more magnetic flux valves, affecting magnetic coupling between the primary and secondary windings. An output signal is generated, in which the output signal is a function of the input signal and the one or more control signals.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: to receive a signal representing the first input voltage and the first input fundamental frequency of the first input signal, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage of a target output frequency is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.

An electrical power supply system, including: at least one virtual air gap transformer, including at least one primary winding, at least one secondary winding, and one or more control windings to control the electromagnetic coupling between the primary and secondary windings; an input port configured to receive a first input signal having a first input fundamental frequency and a first input voltage; and a control component configured: to receive a signal representing the first input voltage and the first input fundamental frequency of the first input signal, and to generate a corresponding virtual air gap control signal to determine the electrical current in the control windings of the at least one virtual air gap transformer, such that a target output voltage of a target output frequency is generated at the secondary windings; wherein the electrical power supply system receives input electrical energy in the form of the first input signal having the first input fundamental frequency and the first input voltage, and generates corresponding output electrical energy in the form of a corresponding first output signal of the target frequency and the target output voltage.