Abstract: An inductive power transmitter for inductive power transmission to an inductive power receiver is provided, comprising a primary coil, capable of being inductively coupled to a secondary coil in the inductive power receiver, a power supply and an associate driver configured to provide a varying electrical potential from the power supply to the primary coil, a monitoring system configured to measure electrical flow parameters of the primary coil, and a controller configured to detect, based on the electrical flow parameters measured by the monitoring system, an error condition indicative of a foreign object introduced between the primary coil and the secondary coil, and to facilitate, when the error condition is detected, interrupting the electrical potential to the primary coil.

Abstract: Solar power systems and structures are mountable to a power distribution structure, e.g. a power pole or tower, which supports alternating current (AC) power transmission lines. An exemplary power generation structure is fixedly attached to and extends from the power distribution structure, and comprises a mounting rack. A solar array, comprising at least one solar panel, is affixed to the mounting rack. A DC to AC inverter is connected between the DC outputs of the solar array and the AC power transmission lines. The length of the solar array is generally in alignment with the power distribution structure, and the width of the solar array is greater than half the circumference of the power distribution structure. The mounting rack and solar array may preferably be rotatable, such as based on any of location, time of day, or available light.

Abstract: A hybrid active power link device includes a plurality of active power link modules (APLMs). Each APLM of the plurality of APLMs includes a plurality of switching devices including a first switching device and a second switching device coupled in series. Each APLM of the plurality of APLMs also includes at least one first-type energy storage device (ESD) coupled in parallel with both of the first switching device and the second switching device. The hybrid active power link device also includes at least one second-type ESD coupled in series with at least one APLM of the plurality of APLMs.

Abstract: A solar generator comprises a flexible support, an array of solar cells, electrical transfer conductors, blocking diodes, the solar cells being formed along different transverse strings, the solar cells situated in a same string being electrically connected in series, each string comprising two opposite ends, respectively of positive polarity and of negative polarity. The positive polarity end of each string of solar cells is individually connected to a respective blocking diode via an electrical transfer conductor dedicated to the string, the electrical transfer conductors dedicated to the different strings being independent of one another, the blocking diodes being located at the proximal end of the solar generator, outside of the array of solar cells.

Abstract: Transformers (1) comprise primary parts and secondary parts with first and second taps (11, 12) for providing feeding signals to combinations of switching circuits (22, 26) and loads (21) and with third and fourth taps (13, 14) for providing data signals to receivers (23). At least one of the third and fourth taps (13, 14) is different from the first and second taps (11, 12). In that case, the data signals will be better available, even in case the first and second taps (11, 12) are short-circuited. The primary parts may comprise primary windings (15), the secondary parts may comprise secondary windings (16). The first to fourth taps (11-14) may be taps of the secondary windings (16). The first and third taps (11, 13) may be identical taps, and the second and fourth taps (12, 14) may be different taps. The first and second taps (11, 12) may be outer taps and the fourth taps may be center taps.

Abstract: When a voltage (auxiliary power supply voltage) on an auxiliary power supply line is instantaneously decreased to be smaller than a resetting voltage, a resetting operation is automatically started in each of the MG-ECU and the HV-ECU to perform an initialization process. After the resetting operation of the MG-ECU and/or the HV-ECU, the MG-ECU causes a converter to start a forced discharging operation when a DC voltage of a first smoothing capacitor is higher than a first reference voltage, and/or when a DC voltage of a second smoothing capacitor is higher than a second reference voltage.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for reconfiguring wireless power resonator. Certain aspects of the present disclosure provide a wireless power resonator. The wireless power resonator includes a first section. The wireless power resonator further includes a second section electrically coupled and physically coupled to the first section. The second section is configured to be movable with respect to the first section while remaining both electrically coupled and physically coupled to the first section to change an effective area of the wireless power resonator.

Abstract: An energy management method for an energy supply system which includes at least an energy storage, a load and a generator with power dependent efficiency is provided. The method includes: calculating two time variant parameters indicating a discharge lower limit and an upper charge limit, respectively, of the energy storage, based on optimization using different kinds of prediction; and controlling, in a real time manner, charging and discharging of the energy storage and operation of the generator, with a certain priorities given to various power sources, such that state of charge of the energy storage is controlled within a region between the discharge lower limit and the upper charge limit. When a grid power is available, blackout duration probability function is predicted and used to calculate the discharge lower limit and the upper charge limit.

Abstract: A rotorcraft winch lighting device, which is attachable to a rotorcraft winch, mounted to a rotorcraft such as a helicopter, the rotorcraft winch including a stationary portion and a mobile portion which is movable with respect to the stationary portion, includes: a stationary unit including a stationary coil and a mobile unit. The mobile unit is movable with respect to the stationary unit and includes at least one light source, at least one electrical storage device, and at least one mobile coil, which is electrically connected to the electrical storage device and/or the at least one light source. The stationary coil and the mobile coil are configured for transferring electrical energy from the stationary unit to the mobile unit when the at least one mobile coil is positioned in an energy transfer position in the vicinity of the at least one stationary coil.

Abstract: Apparatus for a self-powered optical transmitter system. One such system includes an inductor, a power converter, an optical driver, and an optical transducer. A magnet interacting with the inductor generates and EMF that is applied to the power converter, which provides power for the optical transducer. In various embodiments, the power converter includes a voltage multiplier, such as a semiconductor circuit or a transformer, and/or a Zener diode to limit the voltage applied to the optical transducer. The optical driver is either inherent in the power converter or a separate circuit such as one including a processor. The processor has at least one input and produces an output that modulates the optical transducer.

Abstract: A safety-oriented load switching device including a first current branch, which extends from a first supply connection to a first load connection and having a first switching means, and having a second current branch, which extends from a second supply connection to a second load connection and including a second switching means, wherein a first test branch is connected to a first measuring point located between the first switching means and the first load connection and is also connected to the second supply connection and includes a series connection of a first test switch and a first measuring device, wherein a second test branch is connected to a second measuring point between the second switching means and the second load connection and is connected to the first supply connection and includes a series connection of a second test switch and a second measuring device.

Abstract: A method and apparatus for electrically connecting and disconnecting a photovoltaic (PV) module from a distribution system includes determining whether one or more conditions are met to connect the PV module to the distribution system. The PV module is connected to the distribution system based upon the determination of whether the one or more conditions are met, and the one or more conditions are monitored. The PV module is disconnected from the distribution system if one or more of the conditions are not met.

Abstract: A flow measuring device includes an output portion that outputs an electric signal having a shape of rectangle wave with an edge rising or falling in a signal value. The electric signal corresponds to a flow rate of intake air drawn into an internal-combustion engine. The output portion applies or stops a control voltage to a switching element disposed in an output wiring through which the electric signal is output so as to form the edge. The output portion has an edge relief part that changes the control voltage with progress of time so as to gradually increase or decrease the signal value at the edge.

Abstract: A communication monitoring device includes, a first voltage application circuit 5, mounted on a first connector portion 2b arranged at one end of a communication cable 2 having at least two signal lines 2a, or a first repeater 3 or a first communication device, connecting the first connector portion 2b, wherein the first voltage application circuit 5 applies an alternating current voltage at a predetermined frequency to between any signal lines 2a in the communication cable 2, and a second display portion 6, mounted on a second connector portion 2c arranged at an other end of the communication cable 2, or a second repeater 4 or a second communication device, connecting the second connector portion 2c, wherein the second display portion 6 detects and displays the alternating current voltage at the predetermined frequency applied to between the any signal lines 2a in the communication cable 2.

Abstract: The present disclosure is directed to a system and method for modulating a voltage output of a hybrid converter system having first and second set of Si-based power electronic devices coupled to first and second voltage source, respectively, and a first set of SiC-based power electronic devices coupled to the first and second sets of Si-based power electronic devices. The method includes switching between operational states of the hybrid converter system based on a desired voltage output, wherein each operational state includes one of the Si-based power electronic devices from the first and second sets of Si-based power electronic devices and one of the SiC-based devices from the first set of SiC-based power electronic devices being switched on and the remaining power electronic devices being switched off.

Abstract: A power controller assembly is disclosed that transfers alternating current (AC) power generated by solar panels to devices coupled to the power controller assembly. The power controller assembly includes a power connector assembly that is coupled to an AC power outlet and transfers AC power generated by the solar panels from the AC power outlet to a power cord that is coupled to the power controller configuration. The power cord transfers the AC power to the device that consumes the AC power. The power controller assembly also includes an outlet power controller that controls the device that consumes the AC power based on instructions received from a communications device via wireless communication between the outlet power controller and the communications device.

Abstract: A method for controlling the operation of a wind turbine is provided. The method includes receiving, by means of a power controller, an active power reference signal and an active power feedback signal; determining, by means of the power controller and based on the active power reference signal and the active power feedback signal, a first voltage control signal and a power controller frequency signal; determining, by means of a frequency droop gain unit and based on the power controller frequency signal, a second voltage control signal; determining, by means of a theta integrator unit and based on the power controller frequency signal, an actual angle signal being indicative for an actual angle between a rotating dq reference frame and a stationary abc reference frame; and controlling operation of a network bridge based on the first voltage control signal, the second voltage control signal, and the actual angle signal.

Abstract: A power management device for vehicles includes a communication control section that performs interactive communication to selectively supply and receive the electric power with respect to the external power source device and a supplying/receiving control section that controls supplying/receiving of the electric power by the vehicle-mounted power storage device. When the condition that the supplying/receiving control section is in the great power state is satisfied, control of the supplying/receiving of the electric power is allowed. If the supplying/receiving control section is in the decreased state before the vehicle-mounted power storage device and the external power source device selectively supply and receive the electric power with respect to each other, the communication control section performs the interactive communication.

Abstract: An uninterruptable power supply (UPS) is provided. The UPS includes a first input constructed to receive input power from a first power source, a second input constructed to receive input power from a second power source, an output constructed to provide output alternating current (AC) power derived from at least one of the first power source and the second power source, an inverter coupled to the first input, the second input, and the output and constructed to generate the output AC power, and a controller coupled to the inverter. The controller is configured to identify one or more harmonics in the output AC power, generate an inverter reference signal, and modulate the inverter reference signal to reduce harmonic distortion contributed by the one or more harmonics.

Abstract: An electronic device comprises a voltage conversion unit, a first load unit, a current adjusting unit, and a control unit. The voltage conversion unit is configured to transfer an input voltage to an output voltage. The current adjusting unit electrically is coupled with the second terminal of the load unit. The current adjusting unit is configured to control a first driving current flowing through the first load unit according to a first current reference signal. The control unit is electrically coupled with the first load unit and the voltage conversion unit. The control unit is configured to generate a first voltage reference signal according to the first current reference signal and generate a first control signal to the voltage conversion unit according to a voltage of the second terminal of the first load unit and the first voltage reference signal.