Abstract: An electronic medium with an integrated circuit includes a power feeding terminal pair including a first power feeding terminal and a second power feeding terminal, an integrated circuit including at least one first rectifying circuit, and a second rectifying circuit that is separate from the integrated circuit, wherein the first rectifying circuit and the second rectifying circuit are connected in series between the first power feeding terminal and the second power feeding terminal.

Abstract: A photovoltaic power plant with master-slave control architecture. The photovoltaic power plant includes slave plant controllers, with each slave plant controller controlling operation of photovoltaic inverters that convert direct current generated by solar cells to alternating current suitable for delivery to a utility power grid at a point of interconnection (POI). A master plant controller controls and coordinates the operation of the slave plant controllers. The master plant controller generates a global inverter real or reactive power setpoint, which is provided to each slave plant controller. In each slave plant controller, the global set point is processed to generate individual inverter real or reactive power setpoints that are provided to corresponding photovoltaic inverters controlled by that slave plant controller. A photovoltaic inverter generates an output based on received individual inverter setpoint to achieve a desired real power, voltage or power factor.

Abstract: Disclosed are systems, devices, circuits, components, mechanisms, and processes in which a switching mechanism can be coupled between components. The switching mechanism is configured to have an on state or an off state, where the on state allows current to pass along a current path. A monitoring mechanism has one or more sensing inputs coupled to sense an electrical characteristic at the current path. The electrical characteristic can be a current, voltage, and/or power by way of example. The monitoring mechanism is configured to output a reporting signal indicating the sensed electrical characteristic. The monitoring mechanism can be integrated with the switching mechanism on a chip.

Abstract: A method for installing an electric system into an aircraft fuselage. The object to provide a method for simply and quickly installing an electric system into an aircraft fuselage, wherein the electric system is as little heavy and space consuming as possible, and wherein a wide range of customized alternatives of the electric system is possible, is achieved by the steps of providing a fuselage element extending along an aircraft longitudinal axis and including an outer skin and an interior surface, providing a foil sheet of an electrically insulating substrate material, attaching said foil sheet on the inner side of said fuselage element, applying particles of electrically conductive material onto the inner surface of said attached foil sheet opposite the outer skin in a predetermined pattern, such that the accumulated particles of electrically conductive material form electric conductor elements along said inner surface of said foil sheet.

Abstract: An electric drive shaft is disclosed including at least one speed-variable generator for generating a voltage with a variable amplitude and a variable frequency, and at least one speed-variable drive motor supplied with the voltage. The drive shaft enables repercussions on the voltage during sudden load changes, and therefore the complexity of the regulation for stabilizing the voltage, to be reduced due to the generator including a supraconductor winding, especially a high-temperature supraconductor winding.

Abstract: The present invention relates to an energy management system comprising an energy storage, a control system and a power converter supplying power to a load. The energy storage is arranged in individual energy units and the power converter is provided with a switching system for controlling the voltage over the load. The switching system comprises multiple parallel-connected power switches and at least one of the power switches is connected to each energy unit. The control system comprises individual control units, each being configured to monitor the status of a dedicated energy unit and produce an individual enable signal indicative of the status. Each power switch is configured to be controlled by the individual enable signal and a first control signal, wherein the control system is configured to connect multiple energy units in parallel to the load.

Abstract: In a case where a load amount of a load is a predetermined value or less, a control device of an FC vehicle implements extremely low current control for performing power generation at an extremely low current below a lower limit current of an FC for normal operation. At the time of implementing the extremely low current control, upper and lower limit values of a target output voltage of the converter are set in correspondence with the extremely low current, and the output voltage of the FC is controlled to be within a range between the upper and lower limit values.

Abstract: An electrical system for providing power to an accessory in a vehicle is provided. The electrical system includes a power source, a relay coupled to the power source, an accessory socket coupled to the relay, and a switch coupled to the relay and disposed at least partially within the accessory socket. The accessory socket is configured such that the switch is in a closed state when an accessory is coupled to the accessory socket and the switch is in an open state when the accessory is not coupled to the accessory socket. When the switch is in the closed state, the relay consumes power from the power source and when the switch is in the open state, the relay does not consume power from the power source.

Abstract: Aspects of the present disclosure involve systems, methods, and the like, for an automatic transfer switch (ATS) of a power system. The ATS allows for switching between two or more power systems while preventing back-feeding of the power systems. To provide the safety features of the ATS, a safety circuit and control board may be implemented with the magnetic latching relays to control the actions of the latching relays and provide the switching function of the ATS. In one particular embodiment, the safety board comprises one or more electromechanical relays positioned between the controlling electronics of the control board and the magnetic latching relays. The safety board design contains measures to ensure it still functions if one of the disconnect switches is not connected, if one of the connections to a first load phase, a second load phase or neutral is lost and if the main control board is not connected.

Abstract: Described herein are improved configurations for a wireless power transfer and mechanical enclosures. The described structure holds and secures the components of a resonator while providing adequate structural integrity, thermal control, and protection against environmental elements. The coil enclosure structure comprises a flat, planar material with a recess for an electrical conductor wrapped around blocks of magnetic material as well as an additional planar material to act as a cover for the recess.

Abstract: Systems and methods according to aspects of the subject technology provide non-interruptive filtering of transmission line communications. The non-interruptive filtering may physically isolate, in the frequency domain, independent networks that share a common transmission media, such as mains wires that are used to deliver both alternating current (AC) power and power line communication signals. The isolation provided by the non-interruptive filtering prevents the transmissions from the independent networks from interfering with each other. In one or more implementations, the non-interruptive filtering may be provided by one or more filters that include cores, such as ferrite cores, around which two mains wires, e.g. a mains live wire and a mains neutral wire, can be wound in opposite directions, respectively. Currents traveling on the mains wires through the filter in opposite phases cancel each other out, thereby blocking symmetric power line transmissions, while allowing AC power to pass through.

Abstract: A power circuit, a converter structure and a wind power generation system thereof are disclosed. The power circuit includes a first converter having an AC input side and a DC output side, a second converter having a DC input side and an AC output side, and a DC bus storage unit electrically connected to the DC output side of the first converter and the DC input side of the second converter. A level number, a switching valve type and/or a circuit connection of the first converter are different from those of the second converter.

Abstract: An uninterruptible power supply device, and method of use thereof, including a multiple-input source AC converter for receiving an AC input voltage and a DC input voltage, an inverter including a combiner module for combining the input power sources, and an AC/AC switching transformer, the inverter being controlled by a controller to provide an output voltage signal, the controller configured to sample the input voltage signal, the switching signal current and the output voltage signal, and to control the switching transformer based thereon so as to render the output voltage signal sinusoidal.

Abstract: In a cogeneration apparatus having a power generation unit connected to an AC power feed line between a commercial power source and electric load, and an internal combustion engine, a switch is installed between the power generation unit and an outage power output, and the switch is opened to combine the power generation unit with the commercial power source to supply combined power to the electric load if a calculated total engine operation time period is not more than a predetermined time period when the outage is determined not to occur, while the switch is closed to connect the power generation unit to the outage power output, if the power generation unit is determined to be capable of generation power based on an estimated degree of deterioration of the unit when the outage is determined to occur.

Abstract: A method of controlling operation of a hybrid continuous current supply, the current supply including a fuel cell stack, a battery, and a DC/DC converter including an input and an output, the converter input being connected to the fuel cell stack output and the output being connected to a variable load in parallel with the battery, the fuel cell stack being formed of a plurality of electrochemical cells configured to produce electricity from a fuel and an oxidizing gas.

Abstract: Reconfigurable power systems and converters and operating methods therefor are disclosed. Reconfigurable power systems may include a DC power source, an electrical energy storage device, an AC power grid connection, and a power converter configured to selectively couple two or more of the DC power source, the electrical energy storage device, and the AC power grid connection.

Abstract: A UPS includes an input that receives first power from a utility source to power a load and receives second power from the utility source. The load is separate from the UPS. An inverter receives when in a first mode, the first and second power and when in a second mode, the second power and not the first power. The second power is used to power the inverter. A bypass circuit is connected to the input and bypasses the inverter to supply the first power to an output of the UPS when operating in the second mode. A control module detects a voltage at the output of the UPS, integrates the voltage to generate a first sum, and subsequent to completing a transition between the first and second modes, adjusts an output voltage of the inverter based on the first sum to balance the voltage of the UPS.

Abstract: Energy systems and energy supply methods are described. In one aspect, an energy system includes a bus system configured to conduct electrical energy, a plurality of input adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective source entities which are individually configured to provide electrical energy, a plurality of output adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective consuming entities which are individually configured to consume electrical energy, and control circuitry configured to control individual ones of the input adapters to provide electrical energy from respective ones of the source entities to the bus system and to control individual ones of the output adapters to provide electrical energy from the bus system to respective ones of the consuming entities.

Abstract: An inductive power transfer system operable in a plurality of modes comprising an inductive power transmitter capable of providing power to the inductive power receiver over an extended region. The system may be switchable between the various modes by means of a mode selector operable to activate various features as required, such as: an alignment mechanism a resonance tuner, an auxiliary coil arrangement or a resonance seeking arrangement. Associated methods are taught.

Abstract: A series-parallel switch circuit is constituted by connecting, in parallel, multiple series switch circuits in which a first switch receiving electric current and a second switch outputting the electric current are connected in series. Middle points of the multiple series switch circuits are joined. When the series-parallel switch circuit is turned on, the second switches constituting the series-parallel switch circuit are turned on, and thereafter, the first switches constituting the series-parallel switch circuit are turned on.