A charging station for electric vehicles includes a central part for converting a grid AC voltage from an electrical grid into a high frequency AC voltage; a distribution network for distributing the high frequency AC voltage; and a plurality of coils directly connected to the distribution network, wherein each coil is adapted for transferring energy to an electrical vehicle.

A charging station for electric vehicles includes a central part for converting a grid AC voltage from an electrical grid into a high frequency AC voltage; a distribution network for distributing the high frequency AC voltage; and a plurality of coils directly connected to the distribution network, wherein each coil is adapted for transferring energy to an electrical vehicle.

A frequency converter and a method in a frequency converter. The frequency converter is adapted to drive an electrical load, wherein the frequency converter comprises a communications interface through which the frequency converter is adapted to receive external requests to change input power of the frequency converter, means adapted to hold one or more conditions for allowing to change the input power of the frequency converter, and processing means adapted to change the input power of the frequency converter upon receipt of the external request in the limits set by the one or more conditions. (FIG. 1)

Techniques are disclosed for providing a variable output micro-grid frequency in order to cause loads and producers coupled to a micro-grid to change operating modes/behaviors accordingly. For example, the utility frequency delivered via the micro-grid may be used as a control signal for the purposes of demand response, e.g., increasing or decreasing load, energy storage control, e.g., to cause storage of energy or the discharging of energy, and generator output curtailment as is mandated by generator interconnection standards such as UL1741 for output power curtailment under high frequency.

Techniques are disclosed for providing a variable output micro-grid frequency in order to cause loads and producers coupled to a micro-grid to change operating modes/behaviors accordingly. For example, the utility frequency delivered via the micro-grid may be used as a control signal for the purposes of demand response, e.g., increasing or decreasing load, energy storage control, e.g., to cause storage of energy or the discharging of energy, and generator output curtailment as is mandated by generator interconnection standards such as UL1741 for output power curtailment under high frequency.

The invention relates to electrical engineering, specifically to apparatuses and methods for transmission of electrical energy using resonant techniques between stationary objects, as well as between stationary power sources and movable devices that receive energy. The technical result is achieved by eliminating the occurrence, on the transmission line, of a potential antinode of a standing wave of potential, as well as by eliminating the occurrence, in the transmission line, of a current antinode of a standing wave of current, which fact simplifies operation and reduces the cost of the transmission system, improves environmental situation along the transmission line due to decreased intensity of electrical and magnetic fields, reduces the influence of the capacitance of the conductor of the transmission line on the resonant windings of Tesla transformers. The use of the proposed invention results in increased efficiency of resonant transmission of electrical energy, and, primarily, over small and medium distances.

An electric power system is provided. The system is powered by power source that is connected to a frequency converter. The converter is connected via a circuit to a distributive switch that has an input and an output and to an element that is configured to store electric energy. The output is connected to a first electric wire at its first end. The second end of the first wire is connected to a first reflective element. A first device is connected to the first electric wire between the first and the second ends. A second electric wire is connected to the output at one end and the other end is connected to a second reflective element. The frequency converter is configured to transform a current generated by the power source into an increased frequency AC current for powering the first device. A method of operating the system is also provided.

The present disclosure relates to system and method used to transmit power to a remote location. More specifically, the present disclosure relates to a system and method used to independently energize control and monitoring functions of a remote installation prior to and/or during energizing its main circuit.

The present disclosure relates to system and method used to transmit power to a remote location. More specifically, the present disclosure relates to a system and method used to independently energize control and monitoring functions of a remote installation prior to and/or during energizing its main circuit.

The invention relates to electrical engineering, specifically to apparatuses and methods for transmission of electrical energy using resonant techniques between stationary objects, as well as between stationary power sources and movable devices that receive energy. The technical result is achieved by eliminating the occurrence, on the transmission line, of a potential antinode of a standing wave of potential, as well as by eliminating the occurrence, in the transmission line, of a current antinode of a standing wave of current, which fact simplifies operation and reduces the cost of the transmission system, improves environmental situation along the transmission line due to decreased intensity of electrical and magnetic fields, reduces the influence of the capacitance of the conductor of the transmission line on the resonant windings of Tesla transformers.

The use of the proposed invention results in increased efficiency of resonant transmission of electrical energy, and, primarily, over small and medium distances.