Abstract: A system includes an electrical connection system configured to transmit electric power to a plurality of devices associated with a structure and a control system associated with the structure. The control system is configured to receive data indicative of a respective priority associated with the plurality of devices and operate the electrical connection system to control flow of electric power to the plurality of devices based on the data.

Abstract: Discussed is a battery system applied to an electric vehicle. The battery system can include: a battery pack including a plurality of battery cells; a battery management system configured to obtain information on the battery pack, and manage the battery pack based on the obtained information; and a battery black box configured to, while the electric vehicle is turned off, supply a power voltage to the battery management system, and store battery pack management information generated by the battery management system. The battery pack management information may include information on at least one of a plurality of cell voltage of the plurality of battery cells, a current and a temperature of the battery pack, and an insulating resistance of the battery pack.

Abstract: The system may comprise a Proton Exchange Membrane Fuel Cell (PEM FC) stack that is connected to and provides energy to a microgrid for back-up applications, is connected to and provides energy to a fast-charge battery electric vehicle station (BEV) for fast charging of Electric Vehicles (EVs) and is connected to and provides hydrogen to a hydrogen dispenser for fueling Fuel Cell Vehicles (FCVs). Utilizing an integrated forecourt to support several different energy delivery applications and technologies may result in improved overall project economics and may accelerate the transition to a low/zero carbon economy for transportation and stationary back-up power.

Abstract: Disclosed are a single-phase-to-ground protection method and system for an active power distribution network. The method includes: acquiring current and voltage data of a line in real time by means of a power distribution terminal, and calculating active power of the line; recording and storing the active power of the line to form an active power curve; performing data statistics according to the active power curve; calculating a direction compensation coefficient and a zero-sequence current compensation coefficient on the basis of statistical data; and detecting whether a single-phase-to-ground fault occurs to the line, where when the single-phase-to-ground fault occurs to the line, a transient-state zero-sequence direction and a steady-state zero-sequence direction are compensated, or a zero-sequence current is compensated, it is determined that the single-phase-to-ground fault occurs to the line when compensation results satisfy action conditions, and tripping is performed or an alarm is given.

Abstract: Various embodiments of the present disclosure include a method for controlling one or more exchanges of energy between a plurality of installations using a control unit, wherein each installation is connected to one or more phases A,B,C of a three-phase power grid. An example method includes using the control unit to determine, within a time range T for each of the phases A,B,C and for each of the installations, associated time-dependent powers to be exchanged by means of an optimization method by extremalizing a target function. The target function includes a phase difference: ? t ? T g ? ( ? "\[LeftBracketingBar]" P t A - P t B ? "\[RightBracketingBar]" + ? "\[LeftBracketingBar]" P t B - P t C ? "\[RightBracketingBar]" + ? "\[LeftBracketingBar]" P t C - P t A ? "\[RightBracketingBar]" ) as a term, where PtA,B,C is in each case the sum of all powers to be exchanged via the respective phase A,B,C at the time t, and g?0 is a weighting factor.

Abstract: The present invention prevents a failure from occurring in an electric vehicle. This electric vehicle is driven by power obtained from a power line via a collector, an energy source mounted on the electric vehicle, or using both thereof, and causes power generated, for example, during braking to be regenerated to the power line via the collector or to be consumed in a load mounted on the electric vehicle. The electric vehicle is characterized by having a function of electrically separating the collector from the power line when the voltage of the power line or a circuit voltage within the electric vehicle deviates from a predetermined range.

Abstract: An exemplary embodiment provides a power conversion system comprising a first battery module, a second battery module, first and second transformers, and first, second, and third current source converter bridges. The transformers can have low voltage sides and high voltage sides. The first bridge can be configured to connect the battery modules and the low voltage sides of the transformers. A mid-point of the serial connection of the battery modules can be connected to a mid-point of the series connection of the transformers. The second bridge can connect to the high voltage side of the first transformer and one or more ports configured to transmit electrical power to and/or receive electrical power from an electrical load and/or source. The third bridge can be configured to connect to the high voltage side of the second transformer and the one and one or more ports.

Abstract: A voltage converter for an aircraft electrical system includes an input power line configured to receive input electrical power, an output power line configured to supply output electrical power to aircraft loads, conversion circuitry, and a controller. The conversion circuitry is configured to convert the input electrical power to supply the output electrical power based on one or more control parameters. The controller is configured to receive data relating to the aircraft loads and modify at least one control parameter based on the data.

Abstract: A power supply may include an AC to DC converter coupled to an AC power source to generate a DC power output, an AC port(s) to supply AC power to a respective AC load(s), an AC relay(s) coupling a respective AC port(s) to the AC power source, a DC port(s) to supply DC power to a respective DC load(s), a DC to DC converter(s) coupling the DC power output to the DC port(s), a battery(ies) coupled to the DC power output, and an ethernet port(s) to provide wired network connectivity. A controller may be configured to switch the DC port(s) between the DC power output and the battery(ies) responsive to AC power source outages, cause the AC relay(s) to cycle AC power to the AC port(s) and respective AC load(s), and cause the DC to DC converter(s) to cycle power to the DC port(s) and respective DC load(s).

Abstract: A power flow control system is disclosed. The system includes impedance injection modules (IIMs) distributed along and connected in series to one or more power transmission lines. The system further includes dual-ring fiber optic networks, with each dual-ring fiber optic network including a pair of fiber rings that provide data flow in opposite directions. The system further includes redundant power line coordinators in communication with the IIMs through the dual-ring fiber optic networks.

Abstract: A renewable energy powered thermal processing system is formed from a renewable energy source operably connected to an inverter via a charge controller. In one embodiment, a solar renewable energy source is operably connected to the inverter via a solar charge controller. The inverter is connected to a renewable energy storage device and further conditions the current for the thermal processing power supply, which then delivers energy to a thermal processing unit. A supplemental renewable energy source, such as wind, may further be operably connected to the inverter via a supplemental charge controller. As such, the thermal processing unit can be powered solely by renewable energy directly or stored renewable energy within the renewable energy storage device to provide a standalone, grid-independent renewable energy powered thermal processing system. Optionally, a grid tie may further selectively connect the system to an external power grid as a backup source of energy.

Abstract: An electrical distribution system for personal water craft. The primary components include a digital switching device; a series of power lines; and one or more remote controls, a control panel, or both. The digital switching device is preferably a bank of solid state relay switches controlled by an MCU. The control panel also has an MCU. The control panel MCU communicates with the digital switching device MCU. This allows signals from the control panel to travel on a single communication cable to the digital switching device, significantly reducing the control panel footprint compared to prior art control panels. When a radio frequency (RF) receiver is provided, the electrical distribution system may receive signals from a remote control. The remote control may be utilized in addition to or in lieu of the control panel. Power lines run from the digital switching device to wherever power is desired in the vessel.

Abstract: A circuit for controlling failure of a vehicle MCU includes: a failure state detector, configured to monitor the state of a MCU circuit in real time; a maintaining voltage signal generator, configured to: when the MCU circuit is detected to be in a failure state, convert a voltage from an ignition coil of a vehicle to form a failure maintaining voltage signal; and a driving maintainer, configured to output the failure maintaining voltage signal to a driving controller of each load in the vehicle so as to maintain the normal work of the driving controller.

Abstract: Any one of a plurality of to-be-grouped devices in a power supply system reports an initial bus voltage to a topology detection device; and reports a current bus voltage after delivering a bus voltage adjustment instruction to a target reference device. The bus voltage adjustment instruction instructs the target reference device to adjust a voltage. The target reference device receives the bus voltage adjustment instruction and adjusts the voltage according to the bus voltage adjustment instruction. The topology detection device obtains the initial bus voltage and the current bus voltage of the plurality of to-be-grouped devices, and determines, based on a difference between the initial bus voltage of the plurality of to-be-grouped devices and the current bus voltage of the plurality of to-be-grouped devices, whether the target reference device and a target to-be-grouped device are connected to a same bus.

Abstract: Bidirectional energy transfer systems are provided for transferring energy between an electrified vehicle and other structures. The bidirectional energy transfer system may include a home energy management system having a dark start energy storage resource. The home energy management system may enter hibernation mode when the dark start energy storage resource reaches a low power state. The home energy management system may subsequently exit hibernation mode using a variety of recovery strategies when the electrified vehicle returns to the structure or near when the vehicle is expected to return to the structure. Placing the home energy management system in hibernation mode ensures that the dark start energy storage resource will have a sufficient amount of energy for powering system loads necessary to initiate the energy transfer from the vehicle to the structure during the grid power outage.

Abstract: A mobile energy supply system may include a fuel source, an energy converter, and a transfer device. The fuel source may be disposed onboard a vehicle chassis and may hold a supply of a fuel. The energy converter may be disposed onboard the vehicle chassis and may convert at least a portion of the supply of the fuel from the fuel source into electric energy. The transfer device may be disposed onboard the vehicle chassis and be electrically couplable to a propulsion vehicle. The transfer device may transfer the electric energy from the energy converter offboard of the vehicle chassis and to the propulsion vehicle for powering a propulsion system of the propulsion vehicle.

Abstract: The present disclosure relates generally to high voltage systems. In one embodiment, a balancing and measuring circuit is disclosed, comprising: a first capacitor electrically coupled between a first voltage and a chassis voltage, wherein the first voltage is greater than the chassis voltage; a second capacitor electrically coupled between a second voltage and the chassis voltage, wherein the second voltage is less than the chassis voltage; a first circuit associated with the first capacitor; and a second circuit associated with the second capacitor, wherein the first circuit and the second circuit each comprise: a resistive element; a switching element; a voltage circuit configured to generate a reference voltage; and a controller configured to monitor a voltage of a reference capacitor and to control the switching element based on the monitored voltage, wherein the resistive element and the switching element are connected in series.

Abstract: Methods, apparatuses, and systems for detecting arbitrarily located SPOs between a utility power source and a POI of an IBDER and mitigating the effects of such a SPO. Generally, a SPO will cause certain persistent, predictable variations and differences in voltages between phases. The standard deviations of the per-phase voltages can be calculated for each of a series of successive time intervals, and a difference value between the maximum and minimum standard deviation for each interval can be determined. If the difference value exceeds a threshold value for successive intervals covering a predetermined time period, the presence of a SPO is reliably indicated, and the IBDER can be automatically disconnected to prevent damage to connected equipment. The threshold value, number of intervals, and time period can be selected to provide appropriate sensitivity and selectivity.

Abstract: An electrical architecture for an aircraft includes a first propulsion power distribution system distributing a high DC voltage, a second propulsion power distribution system distributing a high DC voltage, a first AC power distribution system distributing a three-phase AC voltage, a second AC power distribution system distributing a three-phase AC voltage, a first inverter connected between the first propulsion power distribution system and the first AC power distribution system, a second inverter connected between the second propulsion power distribution system and the second AC power distribution system, and an electronics module connected to the first inverter and to the second inverter in order to control the frequency of the three-phase AC voltage generated by the first inverter and the frequency of the three-phase AC voltage generated by the second inverter.

Abstract: A computer-implemented apparatus and related method control a dynamic phase rotation unit of a power distribution unit (PDU). The method comprises using a processor of a system controller for identifying a PDU group of two or more redundant PDUs, receiving input parameters from an input port of each of the PDUs in the PDU group, and comparing the input parameters from of the PDU group. The method further comprises conditioned upon a determination of the following both being true: 1) the input parameters are within a predefined threshold of similarity; and 2) no uninterruptable power supply (UPS) is present, then, responsive to the determination sending, via a network, a phase rotation command to a phase rotation controller to change the phase rotation switches on at least one of the PDUs in the PDU group. Otherwise, responsive to the determination, not sending the phase rotation command.