Abstract: The disclosure describes a method for checking the proper method of operation of a current sensor which is designed to measure a battery current. During a precharge phase which begins at a time at which at least one electrical component is connected to a battery and during which the electrical component is precharged by a precharge current, at least one measured value provided by the current sensor is compared with an expected current value determined from an expected temporal profile of the precharge current. The disclosure also describes a computation unit and a battery which are designed to carry out the method according to the disclosure.

Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.

Abstract: A feeding apparatus configured to be supplied with electric-power from a noncontact power-feeding module and to feed electric-power to a power-feeding object, the feeding apparatus, includes: an electric-current variation detecting block configured to detect variation of power-feeding electric-current supplied from this noncontact power-feeding module; a battery configured to assist supply of electric-power from the noncontact power-feeding module; and a charger configured to perform setting for boosting, based on a request from the electric-current variation detecting block, wherein the battery assists supply of electric-power when the setting for boosting is performed.

Abstract: A vehicle ECU executes a program including the steps of determining whether or not to permit discharge assistance, generating first assistance information, transmitting the first assistance information, carrying out discharge control when a result of determination as to whether or not to request discharge assistance and requested discharge electric power is received and when measures based on the result of determination can be taken, and giving notification about whether or not discharge assistance is carried out.

Abstract: Tower systems suitable for use at cellular base stations include a tower, an antenna mounted on the tower, a remote radio head mounted on the tower and a power supply. A power cable having a power supply conductor and a return conductor is connected between the power supply and the remote radio head. A shunt capacitance unit that is separate from the remote radio head that is electrically coupled between the power supply conductor and the return conductor of the power cable.

Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.

Abstract: Method and system for supplying emergency power to nuclear power plant, wherein the method includes, providing accumulator battery system, connected to emergency bus, the accumulator battery system is monitored by online monitoring system; in case of power loss of electrical devices of the nuclear power plant, the online monitoring system starts the accumulator battery system to provide power supply to the electrical devices of the nuclear power plant via the emergency bus. The present application is adapt to the key technologies and battery management technologies of million kilowatt-class advanced pressurized water reactor nuclear power plant, facilitating to improve the safety of the nuclear power plant in case of serious natural disasters beyond design working conditions.

Abstract: In some embodiments, a system may include at least one voltage controller. At least one of the voltage controllers may assess, during use, an occurrence of a predetermined condition. In some embodiments, the system may include an at least first capacitor. The at least first capacitor may be coupled to at least one of the voltage controllers such that at least one of the voltage controllers engages the at least first capacitor to supply additional current when the predetermined condition occurs. When the increase in current is no longer required the at least first capacitor may be disengaged. The at least first capacitor may be charged when disengaged until a predetermined capacity.

Abstract: A method for producing control power for stabilizing an AC electrical grid, wherein the AC electrical grid operates at a variable desired frequency and the AC electrical grid comprises at least one control power supplier which is controlled in a decentralized manner and which controls the grid frequency to a predefined frequency, wherein the predefined frequency is adapted to the desired frequency.

Abstract: The power source apparatus is provided with a plurality of modules (10), and a main controller (2) connected with communication interface units (16) in each module via a communication line CB. Each module is provided with a battery block (12) having a plurality of battery cells (11) stacked together and connected in series and/or parallel, a battery state detection section (14) to detect the state of the battery cells, communication interface units for data communication with other modules and the main controller, and a memory section (18) that can store data received through the communication interface units. The plurality of modules are connected in series and/or parallel with an output line OL.

Abstract: A battery system includes a battery, a control section that controls the battery to charge electric power supplied from the electrical grid and to discharge electric power to the electrical grid; and a system controller. The system controller controls the control section such that the battery system operates in a first mode where electric power that is generated by a pre-designated distributed electric power source associated with the electrical grid is supplied preferentially to a user's load or in a second mode where electric power that is charged in the battery is supplied preferentially to the user's load.

Abstract: A power supply device includes: a first line, a second line, and a third line, each having a different electric potential from one another; a battery circuit in which a fuel cell stack and an electric storage device are connected in series; and a first DC-DC converter, wherein both ends of the battery circuit are connected to the first line and the third line, a connection point of the electric storage device and the fuel cell stack of the battery circuit is connected to the second line, a primary side of the first DC-DC converter is connected to the second line and the third line, a secondary side of the first DC-DC converter is connected to the first line and the third line, and electric power is outputted from the first line and the third line.

Abstract: A containerized energy storage system including a human-machine interface (HMI). The HMI is located at the site of the containerized energy storage system either in close proximity to the exterior of the system, on an exterior wall of the system, or within a space or compartment formed in the exterior wall of the system which is closable to protect the HMI from the elements but which is accessed exteriorly by a user.

Abstract: Provided is a power management system capable of controlling charge and discharge of storage batteries according to power requirement of load even when handling electric power of large scale. A system controller receives load-related information data including the power requirement of load and storage battery-related information data including a state of a storage battery assembly including multiple storage batteries and creates an overall charge-discharge control instruction for the entire power management system based on the load-related information data and the storage battery-related information data. A hierarchical charge-discharge control apparatus receives the overall charge-discharge control instruction from the system controller and performs charge-discharge control of the multiple storage batteries, classified into hierarchical levels, on a hierarchical level basis.

Abstract: A power regulation system for an electrical grid has a store of electrical energy connected through a first switch to a source of electrical energy. The response time of the store is faster than that of the source. A second switch is connected to the store at one side with the opposite side for connection to the grid. A first controller monitors energy stored in the store and energy available from said source and selectively controls the first switch to close to transfer energy from the source to the store. A second controller monitors energy stored in said store and, on receiving an indication that additional energy is needed in the grid, if the energy stored in the store exceeds a supply threshold, controls the second switch to close to transfer energy from the store to the grid.

Abstract: A peak-cut control device is provided with a storage battery having a power generation device and a storage battery for charging/discharging a part of power generated by the power generation device. The peak-cut control device includes a difference power calculating section that calculates differential power between a planned power generation amount in the power generation device determined based on a temporary peak cut amount and a demand prediction power amount that predicts a power demand for each predetermined time, and also includes a peak-cut amount calculating section that compares the calculated differential power with chargeable power or dischargeable power per unit time of the storage battery every predetermined time and simulating charge/discharge of the difference power to/from the storage battery and an increase/decrease in the temporary peak-cut amount.

Abstract: A method in a controller controlling a dynamic power compensator. The dynamic power compensator is arranged to provide active and reactive power to an electric power system, the dynamic power compensator including a battery energy storage. The method includes the steps of: monitoring a state of charge of the battery energy storage; detecting a voltage level in the electric power system requiring increased delivery of the reactive power to the electric power system; and controlling the battery energy storage in dependence on the monitored state of charge and detected voltage level. The invention also relates to a controller, computer programs and computer program products.

Abstract: An automatic breaker apparatus for the USB power supply, comprising a manual switch module, a relay, a high frequency transformer, a PWM power source master control module, a drive module, a signal filter module, an MCU master control module, a lighting instruction module and at least one USB power output end. When a user presses down the manual switch module, the relay becomes conductive, thus causing the electronic apparatus connected to the USB power source input end to be charged, and determining through the MCU master control module whether the electronic apparatus is using the electric current based on the pulsed filter signal outputted by the signal filter module thereby driving the relay to disconnect and also starting the lighting instruction module to generate light.

Abstract: The invention relates to a power adjustment system adapted for powering an electric line for supplying power to vehicles moving in a traffic lane combined with said electric line that comprises an electric supply feeder (AD) delivering an average electric power directly or via at least one converter to the electric line, and an adjustable power based on power fluctuation and required for an instantaneous traffic intensity to an energy storage means (MS) capable of powering the electric line at a peak power via at least one other converter, characterised in that a dimensioning unit (PCC) receives information on the power needs based on the traffic intensity evaluated over at least one duration of said traffic, and in that the dimensioning unit uses information for controlling an adjustment of the useful predictable storage of the storage means so that the electric power (P_IN0, P_IN1) delivered to the storage means is adjusted and minimal while exactly maintaining a sufficient energy backup in the storage mean

Abstract: The processor of a power leveling control device acquires electric cell residue of an electric cell device in each monitoring time, calculates an electric cell residue representative value representing a transition of an electric cell residue in the period based on an acquired electric cell residue, and determines a variation with respect to the current leveling target value based on the electric cell residue representative value. The processor determines a leveling target value changed by the determined variation for power leveling for use in the next period, and controls the power to be supplied from a power supply and an electric cell device to a load based on the leveling target value for power leveling in the next period. Thus, the leveling control may be performed depending on the power supply and the power use situation of a load.

Abstract: An objective of the invention is to deal with difference of the internal resistance of batteries. A battery system (1) including a plurality of battery modules (3) connected, wherein the higher the temperature of the location where the battery module (3) is located becomes, the larger the resistance value of a distribution cable (11) is made. In a chassis (2), the distribution cable (11) located where the temperature is high is made longer and the distribution cable (11) located where the temperature is low is made shorter. More specifically, the distribution cable (11) connected to a battery group (4) located on the upper part of the chassis is made longer and the distribution cable (11) connected to a battery group (4) located on the lower part of the chassis is made shorter. Further, the length of the distribution cable (11) may be adjusted by arranging the output terminal (21) on the lowermost part of the chassis (2).

Abstract: According to a preferred embodiment of the invention, the system for managing a power system with a plurality of power components that includes power source components and power consumption components includes a central power bus, a plurality of adaptable connectors that each electrically couple to a power component and to the central power bus, and a control processor that receives the state of each power component from the respective adaptable connector and is configured to balance the voltage and current output from each power source component to provide a desired power to a power consumption component based on the received states.

Abstract: Embodiments relate to a system for controlling the storage and distribution of energy on a drill rig. The system includes a drill rig having a power consuming device, a power source for providing electrical power, a power storage device, and an electrical power bus. The power bus is electrically connected to the power source, the power consuming device, and the power storage device and is configured to provide an electrical pathway between one or more of the power source, power consuming device, and power storage device.

Abstract: A method and apparatus for an electrical bus leveling unit are provided. The electrical bus leveling unit includes a first power supply configured to generate electrical energy having a first set of electrical parameters and a power converter electrically coupled to said power supply. The power converter is configured to be coupled to an electrical bus couplable to a second power supply. The electrical bus leveling unit also includes a controller including a processor that is communicatively coupled to the power supply and the power converter The controller is configured to receive information relating to the operation of the electrical bus from a plurality of sensors, control an output of at least one of the power supply and the power converter to transfer electrical energy to the electrical bus when the second set of electrical parameters on the electrical bus is outside a predetermined range.

Abstract: Systems and methods for management of a backup power system are described herein. At least one illustrative embodiment includes a backup power system configured to couple to a power source including a plurality of batteries, each comprising one or more cells, used to provide power if the power source fails, and processing logic coupled to the batteries and configured to monitor the state of each of the plurality of batteries and control the charging and discharging of each of the plurality of batteries. If the power source has not failed, the processing logic repeatedly and sequentially causes each battery to discharge while at least one of the remaining batteries remains fully charged, and monitors the power provided by the discharging battery. The processing logic determines the available energy stored in each fully charged battery based upon the power provided by the discharging battery during the time it takes to discharge.

Abstract: A charging system for a mobile device such as a computer, and method of operating the same are disclosed. The computer is a system that includes: a system unit being provided with power output to an operation power supply terminal to carry out an operation; a battery unit outputting battery power to the operation power supply terminal; and a solar power unit being provided with feedback on a voltage of the operation power supply terminal and outputting solar power corresponding to a predetermined operational level of the system unit to the operation power supply terminal.

Abstract: An energy boost circuit adapted to provide power to a load is described. The circuit includes a pair of thermoelectric generators (TEGs) for converting thermal energy from a heat source into electrical energy; a pair of capacitor banks arranged in parallel, each coupled to one of the TEGs for storing the electrical energy generated by the TEG; a power converter; a first switching element coupled between a first capacitor bank in the pair of capacitor banks and the power converter; a second switching element coupled between a second capacitor bank in the pair of capacitor banks and the power converter; and a monitor/controller coupled to the first and second switching elements and adapted to selectively switch the switching elements in order to provide a power boost to the load, where the monitor/controller automatically switches the switching elements based at least partly on charge levels measured at the capacitor banks.

Abstract: A mobile energy supply device for an electric starter for starting an internal combustion engine has an internal battery and at least one capacitor that is connectible in parallel to the internal battery.

Abstract: [Problem] When load power is assisted, the number of component parts becomes greater because an AC power detector is provided in the AC power supply of an inverter. [Means for Solution] An instantaneous output power calculating section comprises a power calculating section to calculate power by using detected values of voltage and current on the output side of an inverter, and a correction calculating section to correct the calculated power. Moreover, limiter sections are provided, respectively, in charge control section and discharge control section for a chopper, and limiter values of the limiter sections are varied by the power calculated by the instantaneous output power calculating section.

Abstract: To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation 9 for electric railway having a transformer 3 for receiving power from an alternating-current power line 2, a rectifying device 4 connected to the transformer 3, and a feeder line 5 connected to the rectifying device 4, a nickel hydrogen battery 8 is provided as a direct-current supply facility, and the nickel hydrogen battery 8 is directly coupled to the feeder line 5.

Abstract: An apparatus for wirelessly transmitting electric currents walls. The walls may be bulkhead compartment walls of a fixed structure or a vehicle or the like. The apparatus includes a wireless electric power transmission arrangement that includes an electronic device on one side of a wall, which is powered by a power source on another side of the wall. The electronic device may be a sensor arrangement having one or more sensors, a battery charging device, a through-the-bulkhead repeater device or other electronic device requiring power.

Abstract: Disclosed is an adapter configured to couple an auxiliary battery for use with a portable device. The adapter is configured to house the OEM battery and the auxiliary battery. The power of the auxiliary battery is coupled in parallel to the OEM battery to extend the power capacity of the portable device. The adapter is further configured to isolate non-power contacts of the auxiliary battery from the portable device and from an OEM battery so as to avoid interference with any authentication circuits of the portable device or OEM battery.

Abstract: An electronic circuit that accepts a variable DC voltage power source and converts it to a constant DC power source, the energy of which is either stored in a battery bank or sent out to DC loads or AC loads via a DC/AC conversion subsystem.

Abstract: A piezoelectric-photovoltaic hybrid structure is described, having a plurality of superposed layers including a photo voltaic layer and a piezoelectric substrate. A method of forming such a structure is also described, including the steps of providing a piezoelectric substrate and superposing a photovoltaic layer over the substrate. A power conversion system is described, comprising such a hybrid structure with a first circuit connected to the piezoelectric substrate and a second circuit connected to the photovoltaic layer. Also discussed is a method of generating, storing, distributing, or consuming electrical energy, involving the use of such a system in connection with a distribution circuit or network, electrical load, or energy storage device. A further power conversion system is described where the piezoelectric and photovoltaic circuits are connected to a single, or a respective, DC-DC converter. A set of such power conversion systems may be connected in series at their output terminals.

Abstract: A thermostat includes a plurality of HVAC (heating, ventilation, and air conditioning) wire connectors for receiving a plurality of HVAC control wires corresponding to an HVAC system. The thermostat also includes a thermostat processing and control circuit configured to at least partially control the operation of the HVAC system and a powering circuit coupled to the HVAC wire connectors and configured to provide an electrical load power to the thermostat processing and control circuit. The powering circuit has a power extraction circuit configured to extract electrical power from one or more of the plurality of received HVAC control wires up to a first level of electrical power, a rechargeable battery, and a power control circuit. The power control circuit is configured to provide the electrical load power using power from the power extraction circuit and the rechargeable battery.

Abstract: A detachable extension USB socket for a portable device comprising: a cover housing for receiving a circuits; conducting pins coupled to said circuits and extending outside of said cover housing and said conducting pins being attachable from a wall socket; at least one USB port coupled to said conducting pins to allow an external device is charged from said wall socket through said least one USB port when a charging port of said external device is not match with said wall socket.

Abstract: A charging device for an electrically-drivable vehicle comprises a power-supply connector (100), a power-receiving connector (200), a safety-charging-signal-generating unit provided in the charging device, a CAN control module receiving a safety-charging signal generated by the safety-charging-signal-generating unit. The charging device may be configured to be chargeable to the electrically-drivable vehicle when the charging terminal and the charging-terminal-accommodating chamber are connected to each other. The power-supply connector and the power-receiving connector are engaged with the CAN module detecting the safety-charging signal. The personal safety during maintenance or other unexpected accidents is enhanced.

Abstract: A computing device including a mounting component at a panel of the computing device to couple with a docking stand for a removable battery of the computing device to electrically couple and receive power from the docking stand and the removable battery supplies power to the computing device if the computing device decouples from the docking stand.

Abstract: A battery augmentation system and method is disclosed. It is particularly designed for the augmentation of batteries in electric or hybrid vehicles. The system comprises of conversion means operatively connected between an auxiliary power system and a electric-motor-battery of the vehicle, wherein the conversion means converts an output signal from the auxiliary power system into a converted signal. The converted signal supplements the electric-motor-battery output voltage preventing it from dropping below a predefined level, thus preventing damage to the electric-motor-battery. The system makes further use of an external battery which can be charged either by mains power or through the auxiliary power system of the electric/hybrid vehicle allowing the vehicle to be converted to a plug-in capable hybrid/electric vehicle.

Abstract: A power delivery rate from a renewable power source to a load is managed by determining, by processing circuitry, a change in a power generation rate, determining, by the processing circuitry, whether the change in the power generation rate exceeds a limit, and then, adjusting, by control circuitry, a power transfer rate to or from a power storage device, such that the adjusting is sufficient to prevent the power delivery rate from exceeding the limit.

Abstract: Main arrays (MA1-MAm) of solar cells (2) are provided so as to correspond to shunt circuits (SM1-SMm), respectively. Charge arrays (CA1-CAn) are provided so as to correspond to shunt circuits (SC1-SCn) and charging circuits (CH1-CHn), respectively. Each shut circuit operates independently from other shunt circuits, and each charging circuit operates independently from other charging circuits.

Abstract: Circuits, systems, and methods for dynamically controlling a power supply configuration in response to load requirements from a digital circuit are disclosed. To increase efficiency, the power supply is configurable to be switched into a lower capacity mode. To prevent the digital circuit from demanding capacity beyond the lower capacity mode of the power supply before the power supply can be switched into a higher capacity mode, at least one hardware interlock is employed. The hardware interlock(s) governs the power demand of the digital circuit from extending beyond the lower capacity mode of the power supply. If it is detected that the hardware interlock(s) limits power demand in the digital circuit beyond a power demand threshold, the power supply can be switched to the higher capacity mode. The hardware interlock(s) can then be disabled. In this manner, the power supply can dynamically provide increased capacity as demanded by the dynamic performance of the digital circuit.

Abstract: A power supply system of the present invention includes: a power generation system (101); a power storage unit (107) configured to supply electric power to the power generation system (101) and an external electric power load (105); and a controller (110) configured to, in a case where it is predicted that at least one of the sum of activation electric power of the power generation system (101) and power consumption of the external electric power load (105) when activating the power generation system (101) and the sum of stop electric power of the power generation system (101) and the power consumption of the external electric power load (105) when stopping the power generation of the power generation system (101) exceeds the upper limit electric power receivable from an electric power system (104), supply the electric power of the power storage unit (107) to at least one of the power generation system (101) and the external electric power load (105) such that the electric power amount supplied from the elect

Abstract: A power supply, a controller, and a power element, wherein a DC compensation voltage is present at a first output of the power element to which a load having a variable current draw can be connected. A second output of the power element is thereby fed through a current measurement device, wherein a rechargeable battery is connected to the second output. A charging current or discharge current of the rechargeable battery measured by the current measuring device is set by controlling the DC compensating voltage. The charging current or discharge current of the rechargeable battery can thereby be determined even without a dedicated UPS assembly.

Abstract: A circuit which extends the operational life of a main power source, said circuit comprising a pair of thermoelectric generators (TEGs) for converting thermal energy from a heat source into electrical energy; a pair of capacitors arranged in parallel, each coupled to one of the TEGs for storing the electrical energy generated by said TEG; a power converter; a first switching element coupled between a first capacitor in the pair of capacitors and the power converter; a second switching element coupled between a second capacitor in the pair of capacitors and the power converter; and a monitor/controller coupled to said first and second switching elements and each of said capacitors for selectively and alternatively switching the first and second switching elements in order to selectively provide power from one of the capacitors to a load, thereby reducing the amount of power drawn from the main power source.

Abstract: A power system has a generator, a variable load, and an electrical accumulator unit. The electrical accumulator unit stores power when the generator generates excess power, and supplements power from the generator when the generator generates insufficient power.

Abstract: Disclosed is a wireless power transferring device which includes a power generating unit configured to generate a power using a solar battery; a power charging unit including a super capacitor or a battery and configured to charge the generated power to retain a power; and a transmission unit configured to convert the power of the charging unit into a high frequency to send the high frequency wirelessly.

Abstract: A charger for recharging the batteries of a portable electronic device even when no external power source is available. A battery or cell is installed within the charger, and when no access is available to a fixed power source into which the charger can be plugged, the internal battery or cell can be used to recharge the electronic device. The internal battery can be a primary battery or a secondary battery. In the latter case, the internal battery can be maintained in a charged state by means of circuitry which, when the charger is plugged into the external power source, charges the internal battery as well as the battery of the electronic device. The external power source can be either an AC power wall socket, in which case the charger includes AC/DC voltage conversion circuits, or a car lighter socket, or the DC output of a conventional wall charger.

Abstract: A mobile workstation includes a first battery bracket for releasable attachment of a main battery, a second battery bracket for releasable attachment of a backup battery and a power control circuit. The power control circuit includes a first input for receiving and monitoring power from the main battery, a second input for receiving and monitoring power from the backup battery, and a DC output. The power control circuit selectively routes a first flow of electricity from the main battery to the DC output when the first flow of electricity exceeds a predetermined value, and routes a second flow of electricity from the backup battery to the DC output when the first flow of electricity falls below the predetermined value.

Abstract: Systems and methods are disclosed for improving power efficiency in battery-charging DC power control systems when a power source input voltage is fluctuating. Power is received from the power sources in the form of AC or DC electrical energy and is controlled and regulated by the DC power control systems into DC voltages for charging batteries and/or for driving output loads. Input voltage from the power sources may fluctuate and may drop below a voltage level required to charge the batteries, resulting in a loss in power conversion efficiency. Embodiments of the present disclosure detect low input voltage, boost the low input voltage to a sufficient voltage level for charging the batteries, and manage the distribution of the battery power and input power to the loads to increase power efficiency while meeting load power demands.