Abstract: A power control system includes a battery, a battery power inverter configured to control an amount of the electric power stored or discharged from the battery, a photovoltaic power inverter configured to control a power output of a photovoltaic field, and a controller. The power outputs of the battery power inverter and the photovoltaic power inverter combine at a point of interconnection. The controller adjusts a setpoint for the photovoltaic power inverter in response to a determination that the total power at the point of interconnection exceeds a point of interconnection power limit.

Abstract: A power transmitting apparatus supporting a plurality of wireless power transmission methods, acquires information about at least one wireless power transmission method supported by a power receiving apparatus from the power receiving apparatus, decides, based on the acquired information, a wireless power transmission method to be used for power transmission to the power receiving apparatus, and transmits power to the power receiving apparatus by the decided wireless power transmission method.

Abstract: An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In various respects, the receiver is configured to be implanted in a body. The receiver may include a housing enclosing a receiving coil and associated electronic components, a covering around at least a portion of the housing, and at least two wires wrapped around the housing to form a plurality of turns. The covering may be formed of a ferrite material configured to both magnetically shield a respective portion of the internal volume of the housing and redirect incoming magnetic flux from the transmitter to improve efficiency. Methods of use are also provided.

Abstract: The present invention provides a wireless power transmission apparatus installable on a wall, the wireless power transmission apparatus comprising: a housing configured to allow a wireless power reception apparatus to be placed thereon; a plug, a part of which is embedded in the housing, the plug being configured to be coupled with a socket for alternating current power installed on a wall; and a transmission unit which is embedded in the housing, converts an alternating current power supplied from the plug to a direct current power, and outputs a wireless power signal to the wireless power reception apparatus.

Abstract: Disclosed herein is a charging system using a wound rotor synchronous motor, capable of increasing a battery charging capacity while reducing the volume, weight, and/or cost of a vehicle increased due to an on-vehicle charging circuit. The charging system includes an inverter converting a DC output of a battery into a plurality of AC signals having different phases, a wound rotor synchronous motor having a plurality of stator coils, to which the AC signals having different phases are respectively input, and a field coil forming a mutual inductance with the stator coils, the field coil being installed in a rotor to form a magnetic flux using the DC output of the battery, and a controller allowing the battery and the field coil to be insulated from each other in a charge mode in which electricity from a grid is applied to the field coil of the wound rotor synchronous motor.

Abstract: Disclosed herein is a charging system using a wound rotor synchronous motor (WRSM), capable of reducing volume, weight, and cost of a vehicle increased due to an on-board charging circuit and increasing a battery charge capacity. The charging system using a wound rotor synchronous motor (WRSM) includes an inverter converting power of a battery into alternating current (AC) powers having a plurality of different phases, a WRSM having a plurality of stator coils each receiving AC power of a different phase and a field coil forming mutual inductance with the plurality of stator coils and installed in a rotor to form a magnetic flux using power of the battery, and a controller controlling the battery side and the field coil side are insulated from each other in a charge mode in which grid power is applied to the field coil side of the WRSM.

Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.

Abstract: A wireless power supply system of the present invention performs wireless power supply between a power transmission coil installed at a parking space and a power reception coil mounted on a vehicle, transmits judging power for judging a parking position from the power transmission coil to the power reception coil in an operation of parking the vehicle in the parking space, and sets an excitation frequency of the judging power to a frequency lower than an in-phase resonance point or higher than an anti-phase resonance point.

Abstract: Methods and systems for installing an electrical power source in an electrical device can include positioning the electrical power source in a device-charging position associated with a first charge path that has a nonzero electrical resistivity, maintaining the electrical power source in the device-charging position for a nonzero time with a mechanism, and moving the electrical power source from the device-charging position to an installed position associated with a second charge path that has less resistivity than the first nonzero electrical resistivity. Devices can include a mechanism and the first and second charge paths, the mechanism configured to move a power source from a device-charging position to an installed position over a nonzero time.

Abstract: An automotive vehicle on which a motor for traveling, a battery configured to supply electric power to the motor, and a charging system configured to charge the battery, are installed. The automotive vehicle includes an abnormality informing unit configured to immediately inform occurrence of an abnormality regarding the charging system when the abnormality is detected, on a condition that the abnormality is a first abnormality that affects traveling, and inform occurrence of an abnormality when a next trip is started, on a condition that the abnormality is a second abnormality that does not affect traveling.

Abstract: A power supply circuit including a DC/DC converter having switching elements and configured to receive an input voltage in an input line and generate an output voltage in an output line; and a linear regulator configured to receive the output voltage and supply a stabilized voltage to a load. The DC/DC converter switches between a switching mode to switch the switching elements and a bypass mode to put a switching element existing on a path from the input line to the output line, of the switching elements, in a full-on state and stop switching of the other switching element.

Abstract: Methods and apparatuses for use in tuning reactance are described. Open loop and closed loop control for tuning of reactances are also described. Tunable inductors and/or tunable capacitors may be used in filters, resonant circuits, matching networks, and phase shifters. Ability to control inductance and/or capacitance in a circuit leads to flexibility in operation of the circuit, since the circuit may be tuned to operate under a range of different operating frequencies.

Abstract: The invention relates to a method for managing a battery comprising a plurality of battery cells, wherein a maximum value of a current that can be delivered by the battery is adjusted on the basis of a frequency distribution (44) of a root mean square current delivered by the battery. The invention further relates to a battery management system and a computer program for carrying out said method as well as to a motor vehicle comprising a battery which includes a battery management system of said type.

Abstract: A vehicular power distribution system includes a first and second power control boxes which are configured to distribute the power, and a main connection cable which electrically connects the first power control box and the second power control box. At least the second power control box includes at least one voltage converter which generates output power of second voltage from input power of first voltage determined in advance. A number of kinds of voltage of power passing the main connection cable is smaller than each of a number of kinds of voltage outputted from the first power control box and a number of kinds of voltage outputted from the second power control box.

Abstract: The present invention relates to a method of managing a charge transfer between, on the one hand means of accumulation (9) of an electrical control device (1) of an electric motor of a motor vehicle (43) and, on the other hand, an external electrical circuit (41) outside said motor vehicle (43), said electrical control device (1) comprising: a voltage converter (21) connected to the accumulation means (9); an H-bridge voltage inverter (3) connected to the voltage converter (21) on the one hand and to the phases of the electric motor on the other hand, characterized in that the method comprises a step of controlling the voltage converter (21) and the voltage inverter (3) as a function of the charge transfer.

Abstract: A power supply system for an electric vehicle includes a battery module, a first DC/DC converter, a second DC/DC converter, a first switch, a second switch and a third switch. The battery module has a negative electrode, a first positive electrode and a second positive electrode. The first DC/DC converter has an input terminal connected with the second positive electrode. The second DC/DC converter has an input terminal connected with the second positive electrode. The first switch is connected between the second positive electrode and the first DC/DC converter. The second switch is connected between the second positive electrode and the second DC/DC converter. The third switch is connected between the first positive electrode and an output terminal of the second DC/DC converter.

Abstract: System, method and apparatus for one-pair power over Ethernet in an automotive application. In one embodiment, a power sourcing equipment transmits a forward path current to a powered device via a single conductor pair and receives a return path current from the powered device via a chassis of an automotive vehicle.

Abstract: A micro grid stabilization device coupled to a DC bus and an AC bus in parallel is provided. A DC power generation apparatus provides power to the DC bus. An AC power generation apparatus provides power to the AC bus. A converter is coupled between the DC bus and the AC bus to transform the voltage of the DC bus and provide the transformed voltage to the AC bus. When the voltage of the DC bus or the AC bus is unstable, the micro grid stabilization device provides power to at least one of the DC bus and the AC bus to stabilize the power of the DC bus and the AC bus.

Abstract: A power transmitting apparatus which can be driven by a battery and transmits power to one or more power receiving apparatuses acquires, from each of one or more power receiving apparatuses, information for identifying the power receiving apparatus, and decides the amount of transmission power for each of one or more power receiving apparatuses based on the remaining capacity of the battery and the sum of the allowable amounts of transmission power determined for each of one or more power receiving apparatuses based on the information. The power transmitting apparatus transmits power to one or more power receiving apparatuses in accordance with the decided power amount.

Abstract: This invention relates to an electrical system for an aircraft, comprising: a first main generator connected to at least one load via a first bus; a second main generator connected to at least one load via a second bus; a first and a second auxiliary generator associated with the first and second buses, the auxiliary generators being driven by a common prime mover.