Abstract: A system employing a modular containerized energy-storage systems (ESS) and power cabinet control system allows for long duration uninterruptible power supply (UPS) capabilities for battery and electrochemical storage devices. modular containerized ESS and power cabinet control system. Long duration uninterruptible power supply (UPS) capabilities for battery and electrochemical storage devices may be realized. Embodiments of a modularized energy storage system can comprise a first power cabinet configured to function as a primary power and load balancing appliance. The first power cabinet can comprises power electronics including a DC-AC inverter, transformer, and frequency regulator; a set of one or more energy storage systems, which may be battery-based.

Abstract: Provided is a power management apparatus for controlling power distribution from a location that includes a storage battery and a current control type converter to another location that includes a storage battery, the power management apparatus including: a monitor unit that acquires a status of the storage battery at each location; a judgment unit that determines, based on the status of the storage battery at each location that has been acquired by the monitor unit, a duration of power distribution to a certain location, and one or more locations from which power is to be distributed to the certain location; and a control unit that controls each location serving as a distribution source such that power distribution is performed for the duration determined by the judgment unit.

Abstract: An electrical energy storage system is provided in this dislosure, which includes: M battery packs; M first DC/DC converters, where first terminals of the M first DC/DC converters are respectively connected to the M battery packs, the M first DC/DC converters are classified into N first DC/DC converter sets; and N second DC/DC converters, where the N second DC/DC converters one-to-one correspond to the N first DC/DC converter sets, a first terminal of each second DC/DC converter is connected to second terminals of all first DC/DC converters in a first DC/DC converter set corresponding to the second DC/DC converter, a second terminal of each second DC/DC converter is connected to a first interface of the electrical energy storage system, the first interface is to receive a direct current from a power generation system or output a direct current to the power generation system.

Abstract: A charging system utilizing energy storage multiplication is provided. An energy storage battery pack of the charging system is directly connected to a DC power transmission bus. When the charging request is initiated by the charging device, the charging device takes the power from the DC bus, the AC-DC converter and DC-DC converter connected to the energy generation device work as the energy source to deliver power to the DC bus, the power goes through the DC bus to the charging device, and the rest of the power goes to the energy storage device or goes out form the energy storage device when the charring power is higher than total energy from all other converters. The high C rate discharging of the energy storage device means high power capacity during discharging, this can provide much high power than AC-DC converter to fulfill the requirement of charging device.

Abstract: Example embodiments of systems, devices, and methods are provided herein for energy systems having multiple modules arranged in cascaded fashion for storing power from one or more photovoltaic sources. Each module includes an energy source and converter circuitry that selectively couples the energy source to other modules in the system over an AC interface for generating AC power or for receiving and storing power from a charge source. Each module also includes a DC interface for receiving power from one or more photovoltaic sources. Each module can be controlled by control system to route power from the photovoltaic source to that modules energy source or to the AC interface. The energy systems can be arranged in single phase or multiphase topologies with multiple serial or interconnected arrays. The energy systems can be arranged such that each module receives power from the same single photovoltaic source, or multiple photovoltaic sources.

Abstract: A plant for melting and/or heating metal material includes a furnace, electrical energy feed means and an electric power apparatus connected between the feed means and the furnace; and a corresponding method to power the melting and/or heating plant.

Abstract: A charging method is performed to charge an accumulator battery of a vehicle. The charging method includes receiving data relating to the evolution over time of the electric power available at the charging terminal and the cost of electricity, and selecting a time window in which the cost of electricity is at a minimum. The charging method further includes estimating a temperature that the accumulator battery will have at the time of the time window and a level of charge that the accumulator battery will have before the time window, determining the electric power that the charging terminal is able to transmit to the accumulator battery during the time window, deducing a new level of charge that the accumulator battery will have at the end of the time window, comparing the new level of charge with a target level of charge, and charging the accumulator battery accordingly.

Abstract: A system for establishing a primary function display for an electrical vertical takeoff and landing aircraft. The system further includes a plurality of sensors that detects at least a metric and generates at least a datum based on the at least a metric. Specifically, state of charge is at least generated based on the performance metric of an energy source. The system further includes a display to show the at least a datum. The system further includes a controller that receives the at least a datum and generates a visual to the pilot.

Abstract: Disclosed is an all-in-one emergency shed that can supply electricity and potable drinkable water during an emergency when electrical grid power is not available and water sources may be contaminated. The emergency shed can use battery banks from electric cars to store electrical energy for emergencies and can store electrical energy in electric car battery banks that are charged during off-peak times and resold to the utility company during peak demand periods.

Abstract: An energy transmission system is provided for a power generation plant including plural distributed power generation devices and a flow battery system that includes plural charging stacks including electrochemical flow cells, wherein each charging stack is associated with one or a group of the power generation devices of the power generation plant and wherein each charging stack is configured to receive electrical energy produced by the associated power generation device or group of power generation devices and to energize an electrolyte of the flow battery system by the received electrical energy; a central storage unit configured to store the electrolyte of the flow battery system; a discharging stack including electrochemical flow cells, wherein the discharging stack is configured to extract electrical energy from the electrolyte and to provide the electrical energy to a power grid. A wind farm including wind turbines and including such energy transmission system is further provided.

Abstract: A mobile generator includes a housing having a top portion, a first side portion, and a second side portion, wherein the first side portion includes an energy-receiving component. The mobile generator also includes an arm pivotally coupled to the housing at a first pivot point and to the first side portion at a second pivot point. A first motion controller is configured to drive rotation of the arm about the first pivot point, and a second motion controller configured to drive rotation of the first side portion about the second pivot point.

Abstract: A distributed power system including multiple (DC) batteries each DC battery with positive and negative poles. Multiple power converters are coupled respectively to the DC batteries. Each power converter includes a first terminal, a second terminal, a third terminal and a fourth terminal. The first terminal is adapted for coupling to the positive pole. The second terminal is adapted for coupling to the negative pole. The power converter includes: (i) a control loop adapted for setting the voltage between or current through the first and second terminals, and (ii) a power conversion portion adapted to selectively either: convert power from said first and second terminals to said third and fourth terminals to discharge the battery connected thereto, or to convert power from the third and fourth terminals to the first and second terminals to charge the battery connected thereto.

Abstract: A first power and hydrogen supply station includes a hydrogen storage unit including a hydrogen generation device that performs electrolysis of an electrolytic solution to generate hydrogen, a first flow rate control device that controls a supply amount of hydrogen obtained by the hydrogen generation device, and an accumulation unit that accumulates hydrogen obtained by the hydrogen generation device, includes a fuel cell (second power generation device) that generates power based on at least one of hydrogen obtained by the hydrogen generation device and hydrogen accumulated in the accumulation unit, includes a fuel cell power storage unit (second power storage unit) that accumulates power obtained by the fuel cell, and includes an auxiliary power supply (third power storage unit). A charge capacity of a power storage device of the fuel cell power storage unit is larger than a charge capacity of a power storage device of the auxiliary power supply.

Abstract: A system for supplying electric power to a grid and for supporting the grid is provided. The system includes (a) a power generator including a main converter, (b) an energy buffer including an energy storage and a secondary converter, (c) a grid stability monitor-configured to provide a grid stability, and (d) a controller configured to control the main converter and the secondary converter in dependency on the grid stability indication such that when the stability level is at least equal to a predetermined threshold value, the main converter is controlled to operate as a virtual synchronous machine and the secondary converter is controlled to operate to maintain a predetermined amount of energy in the energy storage, and when the stability level is below the predetermined threshold value, the secondary converter is operated to provide a predetermined response in order to support the grid stability.

Abstract: Disclosed is a method of operating an array of receiver devices as a phased array. The receiver devices are in a fixed mutual relationship within a zone and each receiver device comprises a photovoltaic element. The method involves receiving a signal from within the zone at a plurality of the receiver devices to generate a plurality of received signals and processing the received signals using at least one phase difference therebetween. The method also involves directing a beam of light from a unit located within the zone to the photovoltaic elements, thereby providing power to said receiver devices. The invention extends to an array of transmitter devices and to an array of both transmitter and receiver devices.

Abstract: An electrical power generating system for providing auxiliary or backup power to a load bus. The system may be used indoors, and generally includes a fuel cell unit comprising a first DC output, an electrical storage unit comprising a DC input coupled to the first DC output of the fuel cell, the electrical storage unit further comprising a second DC output. An inverter coupled to the second DC output receives power, the inverter comprising a first AC output. The system includes a contactor connected between the first AC output and an AC load bus. The AC load bus comprises an AC voltage, and a controller comprising inputs is adapted to sense a phase, a frequency, and a magnitude of the first AC output and the AC voltage and close the contactor when they substantially match.

Abstract: A power transmission apparatus that transmits power wirelessly to a power receiving apparatus by using power supplied from a power supply apparatus includes a first authentication unit configured to execute device authentication with the power supply apparatus, a second authen-tication unit configured to execute device authentication with the power receiving apparatus, and a control unit that performs negotiation related to transmission power with the power receiving apparatus based on a result of the device authentication by the first authentication unit and a result of the device authentication by the second authentication unit.

Abstract: A pre-charging circuit is provided, including a first switch, a second switch, a diode, a first current-limiting apparatus, a capacitor, and an inverter unit. One end of the pre-charging circuit is connected to a power grid. After the first current-limiting apparatus, the first switch, and the diode are connected in series, one end of a line formed by the series connection is connected to one terminal of the capacitor, the other end of the line is connected to a first-phase alternating current of the power grid, and the other terminal of the capacitor is connected to a second-phase alternating current of the power grid via the inverter unit and the second switch successively.

Abstract: Modern thermal power plants based on classical thermodynamic power cycles suffer from an upper bound efficiency restriction imposed by the Carnot principle. This disclosure teaches how to break away from the classical thermodynamics paradigm in configuring a thermal power plant so that its efficiency will not be restricted by the Carnot principle. The power generation system described herein makes a path for the next generation of low-to-moderate temperature thermal power plants to run at significantly higher efficiencies powered by renewable energy. This disclosure also reveals novel high-performance power schemes with integrated fuel cell technology, driven by a variety of fuels such as hydrogen, ammonia, syngas, methane and natural gas, leading toward low-to-zero emission power generation for the future.

Abstract: By using the co-charging system of this invention, a 12V battery such as a lead storage battery is not required, so that depreciation cost can be suppressed. In order to realize above, power should be always supplied to the power supply node of the control circuit by following. (1) Connect the diode so that current flows from the power supply supplied from the solar cell, the power supply supplied from the AC adapter, the power supply supplied from the mobile battery, to the power supply node of the control circuit. (2) Connect a large-capacity capacitor such as an electric double layer capacitor to the power supply of the control circuit. (3) The inverter has an nMOS field-effect transistor+resistor configuration, and the inverter has an nMOS field-effect transistor+resistor+pMOS field-effect transistor configuration.