Abstract: The present disclosure discloses a DC home power consumption system and a wiring method for home appliances based on the system. The system includes: a home power supply configured to supply power for the home power consumption system; a high-voltage DC bus connected to the home power supply and configured to supply power for a high-power appliance; a low-voltage DC bus connected to the home power supply or the high-voltage DC bus and configured to supply power for a low-power appliance.

Abstract: An energy storage system for a vehicle, includes one or more battery units for storing electrical energy; at least one high voltage switch for connection and disconnection of the one or more battery units to at least one load, such as an electrical machine; a fuse for disconnection of the one or more battery units when the energy storage system experiences an overcurrent being above a predetermined overcurrent value. The energy storage system is configured to during use, identify if a condition has occurred which requires immediate shutdown of the energy storage system.

Abstract: A power supply circuit includes a load cable connecting a first battery and a first load; a load cable connecting a second battery and a second load; a transistor provided between a first generator and the load cable; and a transistor provided between the first generator and the load cable, wherein the transistors are turned OFF in a case where power is to be supplied from the first generator to the first load and second load.

Abstract: In a charge/discharge control apparatus, a voltage conversion unit performs voltage conversion between a second conductive path and a third conductive path. A first switch switches between an on state where a current is allowed to flow from a first conductive path to the second conductive path and an off state where the current is blocked. A second switch switches between an on state where a current is allowed to flow from the second conductive path to a second power path, and an off state where the current is blocked. An auxiliary charging unit switches between a supply state where power is supplied to a power storage unit via a path different from a path including the voltage conversion unit, based on power supplied via the first conductive path, and a stopped state where the supply of power via the path is stopped.

Abstract: A system and method is provided for data over power in an aircraft that includes a direct current power source for providing power over power lines to devices onboard the aircraft and a data injector coupled to the power lines for digitally modulating radio frequency data onto twisted pair data over power lines to provide data and power to the devices. A controller is coupled to the direct current power source and the data injector for providing the data to digitally modulate the radio frequency onto the twisted pair data over power lines such that power for the devices onboard the aircraft and data for control of the device onboard the aircraft are provided to the devices onboard the aircraft over the twisted pair data over power lines.

Abstract: An electrical power system for a delivery vehicle. The power system is used in connection with a vehicle having an engine, and a liftgate powered by an electric motor. The power system includes a first battery, a second battery, and an alternator. The electrical power system also includes a super capacitor. The super capacitor has a first capacitor bank and a second capacitor bank, wherein each of the first and second capacitor banks comprises ultra-capacitor cells placed in series. The first and second capacitor banks reside in parallel. In addition, the first and second batteries reside in parallel with the second capacitor bank. Together, the batteries and the second capacitor bank supply power to the liftgate motor. Finally, the first capacitor bank is in electrical communication with the alternator and supplies power, with the alternator, to a relay start for the delivery vehicle to start the engine.

Abstract: A hybrid power module is provided. The power module is associated with a truck having a lift gate. The power module includes a super capacitor comprising a bank of capacitors, with the super capacitor being in electrical communication with an alternator of the truck. The power module also includes a battery, a switch, a DC/DC boost converter, and electrical wiring. The electrical wiring connects the capacitor bank and first battery to the switch, and further connects the switch to a motor for the lift gate. The super capacitor and the first battery are positioned in parallel, with the super capacitor and the first battery residing proximate the lift gate. The super capacitor contains enough energy to power the electric motor for the lift gate through at least two operating cycles without the battery, protecting the lift gate if the battery goes weak.

Abstract: A flexible load management (FLM) system and technique adaptively monitors and manages power consumption of a premises. The FLM system includes a virtual critical load panel (vCLP) that utilizes circuit breakers in combination with companion modules (i.e., intelligent controllers) to vary a prioritization arrangement of loads in the premises by time of day, season or even dynamically. The vCLP is a prioritized enumeration (i.e., prioritization) of the loads within the premises, wherein the loads are considered sufficiently important such that they are protected by a local power source. The vCLP is dynamically configurable by a user in real time according to an instantaneous demand for the prioritized loads that is used to determine a number of branch circuits associated with the loads that is able to be powered-on at any time.

Abstract: A power control apparatus includes: a first power supply device that supplies main power, a second power supply device that supplies auxiliary power, a power divider that divides the main power input from the first power supplier, a first controller connected to a first output terminal of the power divider to control power supply to a first in-vehicle load by connecting or disconnecting the main power and the auxiliary power, and a second controller connected to a second output terminal of the power divider to control power supply to a second in-vehicle load using the main power. The first controller and the second controller diagnose a power failure in cooperation with each other and supply redundancy power using the main power or the auxiliary power based on a power failure diagnosis result.

Abstract: An on-board distributed power supply system is coupled to an on-board distributed drive system. The on-board distributed drive system includes at least two power trains, and the on-board distributed power supply system includes at least two low-voltage battery pack groups. Each low-voltage battery pack group of the at least two low-voltage battery pack groups includes at least one low-voltage battery pack. Each low-voltage battery pack of the at least one low-voltage battery pack includes a plurality of battery cells. Each low-voltage battery pack group of the at least two low-voltage battery pack groups is correspondingly electrically connected to at least one of the power trains in the on-board distributed drive system, and is configured to provide electric energy for each power train of the at least two power trains in the on-board distributed drive system.

Abstract: A method for controlling an uninterruptable power supply arranged between a grid and a variable load, the uninterruptable power supply includes a DC link interconnecting a rectifier connected to the grid via a grid switch, an energy storage and an inverter connected to the load, and a switchable bypass connected between the grid switch and the load and in parallel with the path formed by the rectifier, the DC link and the inverter, the method includes monitoring a power supply of the grid, comparing the power supply to a load requirement of the load, if the power supply meets the load requirement, closing the grid switch, and switching on the bypass, to supply the load with AC current from the grid.

Abstract: Responsive to indication that a predicted amount of solar or wind power from a power generating event will exceed a power storage capability of one or more power storage devices configured to receive the solar or wind power, controllers may command the one or more power storage devices to discharge energy to a power grid before the power generating event such that the power storage capability of the one or more power storage devices increases.

Abstract: An electrical power system for a watercraft including a first electrical power plant configured to operate in a variable frequency mode to output variable frequency power to a first electrical network and a fixed frequency mode to output fixed frequency power to a second electrical network. There is a first electrical load including a first high temperature superconductor (HTS) motor connected to the first electrical network and a second electrical load connected to a second electrical network. A controller selectively connects the first electrical power plant to the first electrical network and operates the first electrical power plant in a variable frequency mode to output variable frequency power to power the first HTS motor and selectively connects the first electrical power plant to the second electrical network and operates the first electrical power plant in a fixed frequency mode to output fixed frequency power to power the second electrical load.

Abstract: An apparatus is provided that includes a string of power sources and step-down circuitry. The power sources are connected in series to provide a first voltage rail at a first voltage, and the string of power sources is divided into power-source segments. The step-down circuitry electrically is configured to provide a second voltage rail at a second, lesser voltage. The step-down circuitry includes control circuitry configured to monitor states of charge of the power-source segments, and control selection of one of the power-source segments to deliver an output from which the second voltage rail is provided, based on the states of charge. One or more first electronic components are electrically coupled to the first voltage rail, and designed to operate at the first voltage. And one or more second electronic components are electrically coupled to the second voltage rail, and designed to operate at the second voltage.

Abstract: A system for delivering electrical energy to a chargeable unit of an electrically powered object characterised by comprising: •at least one input line for delivering electricity from a grid and/or a source of renewable electrical energy; •optionally a first converter disposed within the input line(s) for converting alternating current to direct current; •at least one reservoir of electrical energy connected to the input line(s) and including (a) a plurality of supercapacitors arranged in series or parallel and (b) a means for delivering an output voltage and current therefrom; •at least one second converter adapted to step-up or down the output voltage from the reservoir(s) to a charging voltage of the chargeable unit and •at least one dispensing means connected to the systems and adapted to cooperate with a corresponding connector means on the object to enable the charging voltage to charge the chargeable unit.

Abstract: In the event of external charging where a charging device charges a power storage device with electric power from an external electric power source, a current indication for the external charging is transmitted to the charging device. In this case, in the event of the external charging, a response speed of the charging device is estimated based on change of current in the power storage device due to change of the current indication after start of charging, and the current indication is set in consideration of the response speed of the charging device after the response speed of the charging device is estimated.

Abstract: A power supply system supplies power from a moving body including a battery and an electric drive source to an external power supply target. The power supply system includes a DC-DC converter circuit provided in an internal power feeding path between the battery and the electric drive source, a connection circuit capable of electrically connecting the DC-DC converter circuit to a power receiving terminal (power supply inlet) of the power supply target, and a control device for controlling the DC-DC converter circuit so as to supply surplus power of the battery to the power supply target via the DC-DC converter circuit and the connection circuit.

Abstract: A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.

Abstract: A battery control system and method selectively connect battery strings to one or more conductive buses by plural electrically controllable switches. The switches are controlled to one or more of (a) connect the strings with one or more of the load or the power source via the one or more conductive buses in a first sequence and/or (b) disconnect the strings from one or more of the load or the power source via the one or more conductive buses in a second sequence. The first sequence and the second sequence are based on one or more of states of charge between the strings, different charge capacities between the strings, different electric currents conducted through the strings, different polarities of the electric currents conducted through the strings, and/or a speed of a vehicle that is powered by the one or more loads.

Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator includes a substrate having a surface. A back surface of a single-crystal piezoelectric plate is attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. An interdigital transducer (IDT) is formed on a front surface of the piezoelectric plate with interleaved IDT fingers of the IDT disposed on the diaphragm. Back-side fingers are formed the back surface of the diaphragm. A pitch of the IDT fingers and a pitch of the back-side fingers are substantially equal.