Abstract: An apparatus for estimating a parameter of an induction motor is provided. The estimating apparatus receives an output from a current controller and d and q-axis currents in a synchronous reference frame applied to an induction motor, calculates an error of rotor resistance, and obtains a difference between the rotor resistance and nominal rotor resistance.

Abstract: A scalable energy harvesting system comprising at least one charging control device, at least one energy storage device responsive to the charging control device, at least one energy harvesting device operatively coupled to the charging control device, and a plurality of bus based power connectors operatively coupled to the charging control device.

Abstract: A non-electric battery charging fuel cell system that includes a fuel cell system with a closed internal chamber and at least one magnesium anode and a cathode pair that is electrically connected to eternally accessible battery positions designed to receive rechargeable batteries.

Abstract: According to an example embodiment, a balancing apparatus includes: bi-directional switches that are respectively connected to cells that are connected in series, a controller configured to measure voltages of the cells, and a multiwinding transformed connected to the bi-directional switches. The bi-directional switches are configured to control a flow of an electric current bi-directionally. The controller is configured to select a number of the cells for balancing based on the measured voltages of the cells. The controller is configured to turn on and turn off the bi-directional switches that are connected to selected cells based on the measured voltages. The multi-winding transformer is configured to transfer energy between the cells when the bi-directional switches connected to the selected cells are turned on.

Abstract: A vehicle (3, 3A) is provided with: a power receiving coil (3a) that is provided so as to face a ground power supply coil (2a) and that receives electric power from the ground power supply coil (2a); a storage battery (3d) that stores the electric power received by the power receiving coil (3a); and a power supply coil (3f) that supplies the electric power received by the power receiving coil (3a) to the outside. A transporting system is provided with: a plurality of travel tracks (1A, 1B) along which the plurality of vehicles (3, 3A) travel; and power transfer areas (Ka, Kb) where a vehicle (3, 3A) traveling along a travel track (1A) and a vehicle (3, 3A) traveling along another travel track (1B) are able to mutually transfer electric power to each other.

Abstract: A battery system includes a central battery management controller and a plurality of battery modules, which each have a module controller, and a readout device configured to read information. Within a scope of a start initialization, start identification features of the module controllers are detected by the battery management controller and are provided to the module controllers as future reference for identifying an unauthorized battery module replacement, and information relating to an occurred unauthorized battery module replacement is read by the readout device, which is arranged outside of the battery system.

Abstract: A fuel gauge can include a resistor configured to generate predetermined temperature information and a switch configured to couple a temperature sensor to a temperature output of the fuel gauge in a first state and to couple the resistor to the temperature output of the fuel gauge in a second state.

Abstract: A battery pack including a battery including a battery cell, a first switching unit at a main current path between the battery and a terminal, a second switching unit at the main current path between the battery and the terminal, and serially coupled to the first switching unit, a third switching unit at a bypass current path coupled in parallel to at least a part of the main current path, and configured to block or to allow an electric current on the bypass current path, and a controller for dividing a charging section of the battery, and for controlling at least one of the first switching unit, the second switching unit, or the third switching unit according to divided charging sections to charge the battery.

Abstract: A battery cell balancing system is disclosed. In one embodiment, the system includes a plurality of battery cells arranged in series and a power supply configured to receive the cumulative voltage of the battery cells and output a first charging voltage to one of the battery cells that has a voltage less than a reference voltage. According to one embodiment, it is possible to implement a cell balancing operation using the cumulative voltage of the battery cells.

Abstract: A power generator includes a deforming unit that deforms a piezoelectric member, a pair of electrodes provided on the piezoelectric member, an inductor provided between the pair of electrodes and forming a resonator circuit with a capacity component of the piezoelectric member, a first switch connected in series with respect to the inductor, a unit that detects times when a deformation direction of the deforming unit is switched, a full-wave rectifier circuit that rectifies a current output from the pair of electrodes, an electrical storage device connected to the full-wave rectifier circuit and charging a current supplied from the full-wave rectifier circuit, a second switch connected between one of the pair of electrodes and the electrical storage device, and a control circuit that operates the first switch and the second switch.

Abstract: A storage system with plurality of USB powered ports for charging multiple electronic devices. The invention provides a stable platform with various sized shelves and downstream powered USB ports to charge and network multiple electronic devices. The primary power management and voltage distribution system provides connectivity from a single 120-240 volt power cable to multiple USB ports. The USB ports provide standard power and data transmission capability for connected devices creating an integrated network and storage system for multiple electronic devices.

Abstract: An electronic card including an antenna, a chip, a charging circuit and a battery is provided. The antenna receives an external electric signal, and the chip is coupled to the antenna, so as to receive the external electric signal and provide a demodulated electric signal. The charging circuit is coupled to the chip, receives the demodulated electric signal and converts the demodulated electric signal to generate a charging power. The battery is coupled to the charging circuit, wherein, the charging circuit provides the charging power to the battery according to a residual electricity of the battery, so as to charge the battery.

Abstract: In some embodiments, a cooling system for an inductive charger includes a thermal conditioning assembly in fluid communication with an inductive charging assembly. The inductive charging assembly can include a dock and an inductive charging module. The dock can be configured to receive a portable electronic device, such as a cell phone, that is configured to accept inductive charging from the inductive charging module. The thermal conditioning assembly can include a fluid transfer device and a thermal conditioning module, such as a thermoelectric device. In various embodiments, heat (e.g., heat produced during inductive charging) can be transferred from the inductive charging assembly to the thermal conditioning module and/or to a fluid flow produced by the fluid transfer device, thereby cooling the inductive charging assembly and/or the portable electronic device.

Abstract: It is an object to provide a non-contact charging module that uses a magnet included in a counterpart-side non-contact charging module or does not use the magnet when aligning with the counterpart-side non-contact charging module is performed. An L value of a coil that is provided in the non-contact charging module is not changed. This non-contact charging module includes a planar coil portion where electrical lines are wound and a magnetic sheet that places a coil surface of the planar coil portion and faces the coil surface of the planar coil portion, and in the magnetic sheet, a hole portion is provided at the position corresponding to a hollow portion of the planar coil portion.

Abstract: In one embodiment a multi-mode battery charger for a vehicle is provided. The charger includes a controller. The controller is electrically coupled to a plurality of charging systems. Each charging system is configured to provide a first power from an external power source and to convert the first power into a second power that is suitable for storage on at least one battery on the vehicle. The controller is configured to enable a first charging system of the plurality of charging systems to provide the first power based on a charging priority order in the event two or more of the plurality of charging systems are each determined to provide the first power to the vehicle at the same time.

Abstract: A method and apparatus for excluding a cross-connected wireless power receiver in a wireless power transmitter is provided. The method includes determining transmission power while the wireless power transmitter is connected to the wireless power receiver; transferring the determined transmission power to the wireless power receiver; receiving a report indicating a power-receiving state from the wireless power receiver; determining whether the power-receiving state indicated by the report is within a valid range corresponding to the transmission power; and terminating the connection to the wireless power receiver if the power-receiving state is outside of the valid range.

Abstract: A system for use in supplying power to a power storage device. The system includes a charging device that has a plurality of power converters, each of the power converters having an output terminal configured to output current at a predetermined voltage. The system includes a power conduit configured to couple each of the terminals in series to deliver current from the plurality of power converters to the power storage device. The system includes a controller programmed to receive a power storage device voltage signal, determine a charging voltage level based on the power storage device voltage signal, and enable at least one of the plurality of power converters to supply current at the charging voltage level to the power storage device.

Abstract: A vehicle charging station is provided. The vehicle charging station includes a charging source providing an electrical charge, a coolant source providing coolant and a connector having both an electrical supply section delivering the electrical charge and a coolant supply section delivering the coolant. The connector is capable of connecting to a vehicle. A connector for a vehicle charging station and an electric vehicle are also provided.

Abstract: A charge/discharge system is mounted on an electric vehicle using a motor as a driving source, which is driven by electric power charged in a battery, and controls at least one of charge from the outside of the vehicle to the battery and discharge from the battery to the outside of the vehicle. The charge/discharge system comprises a power supply unit for controlling power supply to supply power only to a unit contributing charge/discharge among units connected to a wiring system of driving power for the motor when charge/discharge to/from the battery from/to the outside of the vehicle is performed.

Abstract: An electric vehicle charger includes a case including a lower case having an opened top surface and in which a connector insertion groove is defined in a side surface thereof and an upper case having an opened bottom surface and covering the opened top surface of the lower case, a circuit board seated on the lower case and on which at least one electrical component of a short-circuit detection part detecting short-circuit of an electric vehicle, a detection part detecting overvoltage and overcurrent during charging of the electric vehicle, a communication module communicating with a charging control part of the electric vehicle, and a display part displaying a charged state of the electric vehicle is mounted, a cable inserted into the lower case, the cable being electrically connected to the circuit board, and a cable connector inserted into the connector insertion groove to guide the insertion of the cable.

Abstract: This electrical energy conversion system, for powering a load using a voltage source, comprises a first capacitor, a second capacitor, two load connection terminals and an electrical transformer comprising a primary winding and a secondary winding. The first capacitor is electrically connected to the primary winding, and the connection terminals are electrically connected to the secondary winding. This system comprises a third capacitor and switching means suitable for switching, reversibly, between a first configuration, wherein the second capacitor is connected in series between the secondary winding and one of the two connection terminals, and a second configuration wherein the third capacitor is connected in parallel with the secondary winding and between the connection terminals of the load.

Abstract: Electric vehicle (EV) charging apparatus and methods are described which allow the sharing of charge current between multiple vehicles connected to a single source of charging energy. In addition, this charge sharing can be performed in a grid-friendly manner by lowering current supplied to EVs when necessary in order to satisfy the needs of the grid, or building operator. The apparatus and methods can be integrated into charging stations or can be implemented with a middle-man approach in which a multiple EV charging box, which includes an EV emulator and multiple pilot signal generation circuits, is coupled to a single EV charge station.

Abstract: A charging station for an electric vehicle comprises an electric vehicle charging apparatus, a plurality of plugs, wherein each plug connects the charging apparatus with an electric vehicle, a toggle switch in the charging apparatus for activating and deactivating current from the charging apparatus to each of the plurality of plugs and a processor configured for detecting when charging is complete for a first electric vehicle connected to a first plug, deactivating current to the first plug and activating current to a second plug connected to a second electric vehicle.

Abstract: A stationary charging system that is capable of battery charging even when a charging unit has a fault is mounted in a vehicle and includes a power unit for generating direct-current charging power, a plurality of charging units (CHG1 to CHG9) that constitute the power unit, a control unit (MCU), and a first CAN communication line for allowing data exchange between the control unit and the charging units, the charging units create charging unit status data concerning results of fault diagnosis on themselves, and transmit the data to the control unit, and the control unit classifies the charging units into a plurality of charging unit groups 4-1, 4-2, and 4-3, and changes output statuses of the charging units for each of the charging unit groups upon reception of charging unit status data indicative of a fault.

Abstract: A movable power source device is to dispose a control substrate, a display module, a biomedical detection module and a power source module in a housing. It does not only utilize a power source transmission port of the power source module connected to mobile digital apparatuses of a mobile phone, a digital camera, a laptop computer and a tablet computer to supply power required for operating the connected mobile digital apparatus or charge the connected mobile digital apparatus but also facilitates a user to understand his/her biomedical information real-time under a condition of activating the biomedical detection module, thereby further achieving two-way interaction.

Abstract: A charging station for a battery powered biopsy apparatus includes a charging dock having a housing and a charging unit contained in the housing. The charging unit has a set of electrical contacts. The housing is received in a first cavity of a driver assembly with the electrical contacts being coupled in electrical communication with the driver assembly when the driver assembly is mounted on the charging dock for charging. The charging unit provides a signal to the driver assembly to reset the driver assembly to an initialized state when the driver assembly is mounted to the charging station.

Abstract: The present invention is related to a rechargeable base station system having a base station connected to a DIN rail assembly. The base station has a base featuring side walls, and a receiving unit rotatably connected to the side walls. The receiving unit has an opened end configured to receive a rechargeable device, and at least one electrical contact which contacts the rechargeable device so as to charge the rechargeable device. The DIN rail assembly has power connection elements that provide power from a power source to the base station when the base station is attached to the DIN rail assembly. The base station can include a battery which provides power to charge the rechargeable device when power from the power source is interrupted. Multiple base stations can be connected to the DIN rail assembly thereby allowing for multiple rechargeable devices to be charged from a single DIN rail assembly.

Abstract: A system for monitoring an energy storage system composed of multiple cells connected in series has a chain of monitors including at least first and second monitors. The first monitor is configured for monitoring at least a first cell in the energy storage system to produce first monitored data. The second monitor is configured for monitoring at least a second cell in the energy storage system to produce second monitored data. The first monitor is further configured for transferring the first monitored data to the second monitor for delivery to a controller.

Abstract: A power source device includes an assembled battery having a plurality of secondary battery cells connected in series, and a plurality of discharge circuits connected in parallel with the secondary battery cells, respectively. A charge control circuit performs constant current charging to the assembled battery, and when voltages of one or a plurality of the secondary battery cells out of the plurality of secondary battery cells have reached a prescribed first voltage, drives the discharge circuits connected to the secondary battery cells whose voltage have reached the first voltage to discharge, and performs constant voltage charging to the relevant assemble battery.

Abstract: In control over a power supply system that includes a plurality of parallel connected batteries, electric power is supplied from the plurality of batteries to an electrical device at a total output upper limit value that is obtained by applying a first computing to individual output upper limit values of the plurality of batteries, and, when there is an abnormality in at least one of the plurality of batteries, the at least one of the plurality of batteries, having an abnormality, is isolated, and a total output upper limit value is set by applying a second computing to the battery having no abnormality, the total output upper limit value being smaller than the total output upper limit value obtained through the first computing.

Abstract: An electrochemical energy storage cell has an electrode assembly, containing at least one first electrode of a first polarity and at least one second electrode of a second polarity, a film-like casing, which at least partially encloses the electrode assembly; and at least one first current-conducting device, which is connected to at least one first electrode of the electrode assembly in an electrically conductive manner and projects out of the casing at least partially, and at least one second current-conducting device, which is connected to at least one second electrode of the electrode assembly in an electronically conductive manner and projects out of the casing at least partially.

Abstract: Methods and articles relating to separation of electrolyte compositions within lithium batteries are provided. The lithium batteries described herein may include an anode having lithium as the active anode species and a cathode having sulfur as the active cathode species. Suitable electrolytes for the lithium batteries can comprise a heterogeneous electrolyte including a first electrolyte solvent (e.g., dioxolane (DOL)) that partitions towards the anode and is favorable towards the anode (referred to herein as an “anode-side electrolyte solvent”) and a second electrolyte solvent (e.g., 1,2-dimethoxyethane (DME)) that partitions towards the cathode and is favorable towards the cathode (and referred to herein as an “cathode-side electrolyte solvent”).

Abstract: A method of pulse charging a secondary electrochemical storage cell is provided. The secondary cell includes a negative electrode comprising an alkaline metal; a positive electrode comprising at least one transition metal halide; a molten salt electrolyte comprising alkaline metal haloaluminate; and a solid electrolyte partitioning the positive electrode from the negative electrode, such that a first surface of the solid electrolyte is in contact with the positive electrode, and a second surface of the solid electrolyte is in contact with the negative electrode. The method of charging includes polarizing the cell by applying a polarizing voltage greater than about 0.1 V above the cell's rest potential for a first predetermined period of time; depolarizing the cell for a second predetermined period of time; and repeating the polarizing and depolarizing steps until a charging end-point is reached.

Abstract: A battery management system having a switch controlling a relay is provided with a short circuit protection (SCP) cutting off power input to a coil of the relay in the occurrence of a failure in the switch and a switch controlling the SCP. The battery management system includes a relay switch coupled to a charging/discharging line of battery cells; a charging/discharging relay having a driving coil driving the relay switch; a relay driving unit coupled to one end of the driving coil so as to control the driving coil; a first switch coupled to the charging/discharging relay and the relay driving unit so as to control an on/off of the charging/discharging relay; a control unit that applies a control signal for controlling an on/off of the first switch; an SCP provided between the driving coil and the relay driving unit; and a second switch that controls the SCP.

Abstract: A power-source apparatus for a vehicle comprises a generator driven by an engine and generating power, a power-storage device storing the power generated by the generator thereat and supplying the power stored thereat to an electric load, and a control device configured to detect a deterioration state of the power-storage device and change a voltage of the power-storage device during a soak in accordance with the deterioration state of the power-storage device detected. Thereby, the improvement of the fuel economy can be achieved and also the necessary durability of the power-storage device can be ensured.

Abstract: An apparatus and method for charging a battery with improved charging performance and reduced degradation of the battery. A battery charging profile is configured to achieve minimal degradation of a selected battery possible for a given charge time. The minimization is achieved using battery degradation modeling data indicative of a battery degradation level of a selected battery, and voltage and temperature response modeling data indicative of predicted battery voltage and temperature of the selected battery as a function of time and charging current.

Abstract: There is provided an electricity storage system which comprises an electricity storage device, a charge and discharge switch device which is placed connected to the electricity storage device, a control block which is a charge and discharge control device which controls charging from a power supply and discharging from the electricity storage device to an external load, and an electricity storage device breaker with transmission and reception functions which is provided between the electricity storage device and the charge and discharge switch device, disconnects connection with the electricity storage device according to detection of abnormality of the electricity storage device or according to an instruction of the control block, and notifies the execution of the disconnection to the control block. The control block comprises a hardware disconnection instruction unit in addition to a software disconnection instruction unit.

Abstract: An intelligent charge-discharge controller for a battery includes a charging voltage test circuit configured for testing an input voltage of the battery when in charge; a charging current control circuit configured for controlling an input current of the battery based on the tested input voltage; a battery voltage test circuit configured for testing a current voltage of the battery; and a discharging current control circuit configured for controlling a discharging current of the battery. The charging voltage test circuit and the battery voltage test circuit each are electrically connected to the charging current control circuit, and the charging voltage test circuit and the discharging current control circuit have a common circuit section. An electronic device having the intelligent charge-discharge controller is also provided.

Abstract: Disclosed herein is a safety apparatus for a battery module of an electric vehicle preventing an entire electrode of a battery cell from fracturing due to a swelling expansive force upon overcharging, the apparatus including an end plate and a power supply unit. The end plate is disposed at ends of both sides of a battery module, includes an opening, and delivers an expansive force generated in the battery module to the exterior through the opening upon swelling. The power supply unit is disposed in the end plate and interrupts a current supplied to the battery module using the expansive force delivered through the opening.

Abstract: When a communication control unit (14) in this charging control device (1) receives an inhibition command sent by a power monitoring device (2), the communication control unit instructs a signal processing unit (10) to lower a current capacity (an upper limit for a charging current). The signal processing unit (10) reduces the duty ratio of a pilot signal. As a result, the charging power supplied to an electric vehicle (200) decreases, thus making it possible to prevent the supplied power from exceeding a contract demand and minimize problems stemming from the charging of a rechargeable battery.

Abstract: In the present invention, capacitor elements are connected in series and charged until the voltage between the terminals of a capacitor element whose capacitance is the lowest among the capacitor elements reaches a withstanding voltage. When the voltage between the terminals of the capacitor element reaches the withstanding voltage, the capacitor elements are connected in parallel, and the electric charge of the capacitor element is transferred to the other capacitor elements.

Abstract: A discharge circuit, an image forming apparatus having the discharge circuit, and a power-supply unit are disclosed to minimize a standby power generated in a standby mode and improve a discharging speed of a capacitor charged with electricity by the AC power in a power off mode. The discharge circuit connected between AC power input lines receiving an AC power includes a first resistor and a first switch element connected in series between the AC power lines, and a second resistor and a second switch element which are connected in series between the AC power lines, turn off the first switching element upon receiving an electric current during supply of the AC power, and turn on the first switching element in response to cutoff of the AC power to discharge the first capacitor.

Abstract: A circuit can be used for charging a capacitor with an AC voltage. In one embodiment, the circuit includes a capacitor coupled to be charged with the AC voltage. An adjustment is configured to adjust a capacitor charge speed according to a value of the AC voltage. The adjustment circuit includes at least one bipolar transistor coupled to receive a voltage at a base of the bipolar transistor. The voltage is a function of the value of the AC voltage.

Abstract: A rotating device for multi-megawatt, fast response frequency regulation for the electric grid. The device generally has a main shaft coupled to a motor-generator, a main spring concentric to the main shaft, and several radially-symmetric arms, each connected to the main spring via a four-bar mechanism. As the rotational speed of the device increases, centrifugal force acting on the arms causes them to rise, the four-bar mechanism compresses the main spring, and energy is stored in the device as a combination of kinetic rotational energy, elastic potential energy, and gravitational potential energy. The device can be configured with additional springs, which can be compression springs, tension springs, or a combination thereof, in order to increase the amount of energy produced. Symmetrically-spaced gliding masses can be arranged on the arms as well.

Abstract: In one aspect, a method for controlling a dual-fed induction generator (DFIG) during a high-voltage grid event is provided. The method includes setting, by a controller, an output of a closed-loop portion of a rotor current regulator to a fixed value such that a predictive feed-forward path sets an internal voltage for the DFIG; and detecting, by the controller, a condition of high dc voltage on a dc link or a condition predictive of high dc voltage on the dc link, and in response reduce a rotor torque producing current command to approximately zero, wherein the dc link connects a line-side converter connected to a system bus and a rotor-side converter connected to a rotor of the DFIG.

Abstract: The present subject matter is directed to systems and methods for interfacing variable speed generators to a power distribution grid. A plurality of doubly-fed induction generators (DFIG) are provided and coupled to a common shaft of a prime mover. Each of the plurality of DFIGs provides an electrical power output having an output frequency based on a rotational speed of the common shaft. A converter coupled to each DFIG provides variable excitation signals to its respective DFIG sufficient to adjust its output frequency to conform to a power grid frequency requirement.

Abstract: A power distribution system has a plurality of reactive power resources including capacitor banks and distributed energy resources connected to branches of the power distribution system. Power loss is reduced in the distribution system by determining discrete switch states for the capacitor banks and continuous set points for the distributed energy resources, so that the reactive power provided by the reactive power resources reduces power loss while optionally correcting voltage violations in the power distribution system when the capacitor banks are set in accordance with the respective discrete switch states and the distributed energy resources are operated at the respective continuous set points. The range of values for the continuous set points is constrained based on maximum and minimum reactive power limits for each distributed energy resource under consideration.

Abstract: This document discusses, among other things, systems and methods including a boost converter configured to receive an input voltage (e.g., a battery voltage) and to provide a boosted output voltage higher than the input voltage, and a shunt regulator coupled to the output of the boost converter through a resistive element and configured to regulate an output ripple of the boosted output voltage. In an example, using the systems and methods described herein, a battery voltage of less than 5 volts can be boosted and regulated to an output voltage between 16 and 20 volts with an output ripple of less than 500 microvolts.

Abstract: Disclosed is a feedback detection circuit, adapted to provide a feedback detection signal wherein a converting circuit provides a driving power source to drive a load according to the feedback detection signal. The feedback detection circuit comprises an operational conversion circuit and a signal limitation circuit. The operational conversion circuit generates the feedback detection signal in response to a level of a detected node of the load. The operational conversion circuit has an operational amplifier, which modulates the level of the feedback detection signal in response to the level of the detected node. The signal limitation circuit is coupled to the operational conversion circuit for clamping a level rang of the feedback detection signal.

Abstract: A rectifier circuit capable of attenuating an offset voltage wherein the rectifier circuit includes an amplification unit configured to generate an output voltage through an output terminal in response to a reference voltage and a voltage at a feedback node, a plurality of first unit resistors connected between the output terminal and the feedback node, and a plurality of second unit resistors connected between the feedback node and a ground terminal, and wherein each of the first unit resistors and each of the second unit resistors are designed to have different resistance values.