Abstract: A resonator for use in a wireless power transfer system is provided. The resonator includes a core including a front surface, a back surface, and an annular sidewall extending between the front surface and the back surface, wherein an annular groove is defined in the front surface and surrounds a post, and wherein a cavity is defined in the back surface, the post and the cavity aligned with a longitudinal axis of the core. The resonator further includes a coil element disposed within the annular groove.

Abstract: A method of operating a static transfer switch is provided. The method includes monitoring a voltage waveform for each phase of first and second power sources, and calculating flux for each phase of the power sources. The method also includes determining (i) a first flux difference between the respective flux of the first phases of the first and second power sources, (ii) a second flux difference between the respective flux of the second phases of the first and second power sources, and (iii) a third flux difference between the respective flux of the third phases of the first and second power sources. The method further includes turning off a third solid-state switch to disconnect the third phase of the first power source from a load, in response to the controller determining that the third flux difference is greater the first and second flux differences.

Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a plate member that is mounted on the first flange portion and the second flange portion. A distance in a height direction between the plate member and the first flange portion, or a distance in the height direction between the plate member and the second flange portion, or both vary in a length direction, or in a width direction, or both.

Abstract: A wireless power transmission apparatus including a controller configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator. The controller transmits, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmits a packet related to a second available power indicator to the wireless power reception apparatus. Further, the bit pattern response is composed of 8 bits, and the bit pattern response is defined as a different pattern from a bit pattern for an 8-bit ACK response, an 8-bit NAK response and an 8-bit ND response.

Abstract: Systems and methods are provided for intelligent energy source monitoring and selection control to enable power delivery in a multi-modal energy system. A multi-modal energy system includes a control system, power supply systems, and an electrical distribution system. The power supply systems are coupled to the control system. The power supply systems include a mains utility power system and at least one renewable power system. The electrical power distribution system is coupled to the control system. The control system is configured to monitor each power supply system to determine a power availability of each power supply system, determine an amount of power usage by the electrical power distribution system, and selectively connect and disconnect one or more of the power supply systems to the electrical power distribution system based on the determined power availability of the power supply systems and the determined power usage of the electrical power distribution system.

Abstract: A DC filter device includes: a first filter device connection; a second filter device connection; a third filter device connection; a fourth filter device connection; a coil core; at least one first coil arranged on the coil core, the at least one first coil being connected in between the first filter device connection and the third filter device connection; at least one second coil arranged on the coil core, the at least one second coil being connected in between the second filter device connection and the fourth filter device connection; and a third coil arranged on the coil core, the third coil having a first coil connection and a second coil connection. The first coil connection and the second coil connection are connected to one another via a circuit device, which circuit device has a resistor.

Abstract: A magnetic structure for wireless power transfer has a plurality of pieces of magnetically permeable material arranged along a first dimension. Each piece is separated from a neighbouring piece by a gap defining a separation distance which is selected to prevent partial saturation of a region of the structure.

Abstract: A coil module includes a first coil set; a second coil set, including a first coil body, a second coil body and an insulative separator disposed between the first coil body and the second coil body, the separator having an adopting hole, the first coil body having an open winding surrounding the adapting hole and fixed on a side of the separator, the second coil body having an open winding surrounding the adapting hole and fixed on another side of the separator; and a coil base sheathing the second coil set with exposing the adopting hole. The first coil set surrounds the adopting hole and is fixed on the coil base to form a coil module.

Abstract: Electrified vehicle electrical systems and formatting methods include arranging a first layer including one or more first electrical transmission lines each configured to carry electrical power at a first voltage to one or more electrical powertrain components of the electrified vehicle, arranging a second layer above at least a portion of the first electrical connection layer, wherein the second layer includes one or more second electrical transmission lines each configured to carry electrical power at a second voltage to one or more electrical power distribution components of the electrified vehicle, and arranging a third layer above at least a portion of the first and second layers, wherein the third layer includes one or more third electrical transmission lines each configured to carry electrical power at a third voltage to one or more input/output device components of the electrified vehicle.

Abstract: Provided is a method for feeding electrical power into an electrical supply network having a network voltage with a network frequency by means of a converter-based generator, in particular by means of a wind power system, comprising the following steps: estimating a converter proportion, representing a ratio of power fed in by means of converters to total power fed in, of a network section of the electrical supply network, feeding electrical power into the electrical supply network in a normal mode, and activating at least one support control for supporting the electrical supply network. The activating is effected depending on the converter proportion, the at least one support control is adjustable in each case by way of a degree of activation, and the degree of activation of the at least one support control is dependent in each case on the estimated converter proportion.

Abstract: In a power supply system for a watercraft, a controller in a first state connects a first electric circuit to a third electric circuit to supply electric power from a first engine battery to an electric device, and disconnects a second electric circuit from the third electric circuit to charge a second engine battery by a second generator. In a second state, the controller connects the second electric circuit to the third electric circuit to supply the electric power from the second engine battery to the electric device, and disconnects the first electric circuit from the third electric circuit to charge the first engine battery by a first generator.

Abstract: A system for a vehicle, which has a battery, a DC-DC converter, a DC-AC converter, an electric motor, and a switch. The battery is connected to the DC-DC converter and the DC-AC converter is connected to the electric motor. The switch is arranged between the DC-DC converter and the DC-AC converter, and the switch is designed, in a first switching state, to electrically connect the DC-DC converter and the DC-AC converter and to permit an exchange of electrical energy between the battery and the electric motor in order to carry out a traction process. The switch is designed, in a second switching state, to electrically isolate the DC-DC converter and the DC-AC converter, to connect the battery to an electrical charging station, and to permit an exchange of electrical energy between the battery and the electric charging station in order to carry out a charging process.

Abstract: An energy management system for a recreational vehicle incudes a housing; a plurality of outputs, each output having an associated electrical parameter; and a circuit assembly arranged within the housing. The circuit assembly includes a power converter configured to receive AC power and supply DC power to one or more of the outputs; a plurality of relays, each relay being associated with a corresponding output; and a controller configured to configured to perform a load shedding operation in response to a first load condition being satisfied. The first load condition requires that a total parameter is equal to or above a first predetermined load threshold, the total parameter being a total value of the associated electrical parameters of the outputs. The load shedding operation sequentially opens any closed relays according to a predetermined opening scheme until the total parameter is below the first predetermined load threshold.

Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.

Abstract: An electromagnetic device and method for cooling the electromagnetic device comprising a permeable magnetic core having a plurality of legs, a former located adjacent the permeable magnetic core wherein the former is thermally conductive, and at least one winding configured to conduct an electrical current there through wound on the former, the at least one winding including a coil having a plurality of turns.

Abstract: Embodiments of the present invention comprise two or more distinct solar power systems associated with a single residence or building that together form an aggregate solar power system. Advantageously, high draw appliances can be distributed among the different systems such that the high current draw of one appliance on a first system will not negatively impact the high current draw of another high draw appliance on a second system.

Abstract: A transformer comprises an iron core, a support module, a winding unit, a potting box. The potting box includes an inner wall, an outer wall and a bottom plate and the inner wall is sleeved in the outer wall. The bottom plate is connected to a bottom portion of the inner wall and a bottom portion of the outer wall and a potting space is defined by the outer wall, the inner wall and the bottom plate. The winding unit is disposed in the potting space and a magnetic pole of the iron core penetrates through an inner side of the inner wall of the potting box. The support module is disposed between at least one end surface of the potting box and a cover of the iron core to form an insulation clearance. The support module is close to the inner wall of the potting box.

Abstract: A solar fail-safe device according to an embodiment of the present disclosure is capable of operating a valve by using sunlight and operating the valve in an emergency in which electricity is not supplied to an actuator unit moving the valve. A solar fail-safe device may include a solar panel module producing electricity from solar energy, an actuator unit including an actuator moving a valve by using electricity as a power source, and a fail-safe part moving the valve by using emergency electricity with which the fail-safe part is pre-charged, and a control unit receiving the electricity produced from the solar panel module to charge a first and a second battery and to supply the electricity to the actuator unit. The actuator may move the valve by using the emergency electricity when a voltage at which the electricity is applied from the control unit is less than a predetermined value.

Abstract: The invention relates to a luminaire with a light source comprising: a functional unit; a power supply and control unit configured for converting power from a main power source into a power signal for powering the functional unit; wherein the power supply and control unit is configured to generate a power supply failure signal when the power supply from the main power source fails and to communicate the power supply failure signal to the functional unit.

Abstract: A core main body includes an outer peripheral iron core, and at least three iron cores. Between the two iron cores adjacent to each other, a gap being magnetically couplable is formed. The outer peripheral iron core includes a first outer peripheral iron core block and a second outer peripheral iron core block that are formed by stacking a plurality of magnetic plates, and an intermediate plate disposed therebetween. The intermediate plate includes an outer peripheral iron core corresponding portion corresponding to the outer peripheral iron core, a plurality of protruding sections protruding from an outer peripheral surface of the outer peripheral iron core, and engaging sections provided on the plurality of protruding sections.