Abstract: According to an embodiment, a power supply system for an electric motor car includes a first terminal, a second terminal, and a conversion unit. The first terminal is electrically connected to one of a power storage device and an overhead wire provided within a formation of electric motor cars. The second terminal is electrically connected to a lead wire together with a plurality of electric motors within the formation, a host power supply device, an external power supply device different from the host power supply device.

Abstract: A power source system includes a first power source, a second power source, a Direct Current to Direct Current converter, a first load including a vehicle control device configured to perform predetermined control regarding at least one of traveling, steering, and braking of the vehicle regardless of a driving operation performed by a driver of the vehicle, and an electric actuator as a control target of the vehicle control device, and connected to the first path so as to be supplied with power from the first power source, and a power source control device configured to control an operation of the Direct Current to Direct Current converter such that power is supplied to the first path from the second power source in a case where the predetermined control is performed.

Abstract: Electrical systems for providing uninterruptible power to a critical load. One electrical system includes a ring bus, multiple power blocks including one or more generators electrically coupled to the ring bus, and uninterruptible power supplies (UPSs) electrically coupled to the ring bus. In some aspects, the electrical system includes a UPS switchgear electrically coupled between the ring bus and the UPSs. In other aspects, the UPSs are electrically coupled together in parallel. Another electrical system includes a utility switchgear, UPS blocks electrically coupled together in parallel and electrically coupled to the utility switchgear via transformers, low voltage (LV) power blocks electrically coupled to the UPS blocks, and medium voltage (MV) switchgear electrically coupled to the UPS blocks via transformers. Each of the LV power blocks include one or more generators.

Abstract: An uninterruptible power supply includes disconnectors that perform a disconnection operation to electrically disconnect a plurality of uninterruptible power supply modules individually. Each of the disconnectors includes a connection conductor that electrically connects a first conductor to a second conductor, and a moving member mechanically moving the connection conductor in a direction in which the connection conductor approaches and contacts the first conductor and the second conductor, and a direction in which the connection conductor is spaced away from the first conductor and the second conductor.

Abstract: A method for evaluating a state of charge of a rechargeable battery of an electrical system. The electrical system includes one primary power source and a rechargeable battery as a secondary power source, a DC/DC converter and an electrical network comprising a primary electrical network that connects the primary power source to the DC/DC converter and a secondary electrical network that connects the rechargeable battery to at least the DC/DC converter. The DC/DC converter converts an input DC voltage supplied by the at least one primary power source into an output DC voltage supplied to the secondary electrical network. The at least one primary power source and the rechargeable battery are connected in parallel to at least one electrical load and are configured to supply, via the electrical network, DC voltage and DC current to the electrical load.

Abstract: A system includes at least one load in a vehicle, a battery electrically connected to the load, a power source electrically connected to the load, and a computer communicatively connected to the power source. The computer is programmed to reduce a voltage supplied by the power source to the load so that the battery discharges to supply power to the load, and then, in response to an electrical quantity of the system being outside an electrical-quantity range while the battery is discharging, perform a minimal risk condition or prevent the vehicle from movably operating.

Abstract: A wireless power transmission method executed by a power transmitter comprising multi-coils, according to one embodiment of the present invention, comprises the steps of: detecting a second power receiver while transmitting power to a first power receiver; determining at least one primary coil adequate for power transmission; by using the determined at least one primary coil, determining whether the second power receiver supports a shared mode protocol; and if the second power receiver supports the shared mode protocol, transmitting power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol may be a protocol for simultaneously managing information exchanges between the power transmitter and multiple power receivers.

Abstract: An inhaler controller includes a first path configured to connect a first voltage terminal to which a first voltage is supplied and a connection terminal to which a heater configured to heat an aerosol source is connected, a second path configured to connect a second voltage terminal to which a second voltage different from the first voltage is supplied and the connection terminal via a resistor, and a measurement circuit configured to measure a resistance value of the heater.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: Some embodiments include a high voltage direct current (HVDC) power generator system for information technology (IT) racks. The HVDC power generator system can include a three-phase alternating current (AC) transformer having a primary winding and a plurality of secondary windings. A plurality of three-phase bridge rectifier circuits can be electrically coupled respectively to the plurality of secondary windings. The HVDC power generator system can include output terminals for powering its load. A first string of bridge rectifier circuits can be in series with each other and a first inductor. A second string of bridge rectifier circuits can be in series with each other and a second inductor. The first and second strings can be electrically coupled in parallel to the output terminals.

Abstract: A device includes an energy unit coupled to an energy device and adapted to couple a pair of split DC rails. A controller senses the voltage on the DC rails and regulates its output current response by means of an autonomous current response that creates the aggregate effect of controlling the rail voltage in cooperation with other units coupled to the DC rails. A system includes multiple such devices coupled to split DC rails.

Abstract: Disclosed are a method and apparatus for smoothing a link-line power of an electrothermal microgrid using a thermal storage heat pump cluster.

Abstract: A power supply apparatus includes a control circuit, and first and second power storage connected to a DC link circuit between an inverter and a converter. The control circuit, while the AC power supply is in a normal condition, controls the first power storage to discharge when the control circuit detects that electric power consumption exceeds a threshold, and controls at least one of the first and second power storage to charge when the control circuit detects that the electric power consumption does not exceed the threshold, and while the AC power supply is in an abnormal condition, controls the second power storage to discharge, and controls the first power to discharge when it is detected that the electric power consumption exceeds the threshold.

Abstract: A power provider circuit includes a plurality of power delivery controllers, a single stage power supply, and control circuitry. Each of the plurality of power delivery controllers is configured to provide power to a detachable device. The single stage power supply is configured to generate the power for provision to the detachable devices, and to provide the power at a plurality of selectable voltages. The control circuitry configured to select a given voltage of the plurality of selectable voltages to be made available via all of the power delivery controllers based on power utilization capabilities and other optional status indications reported by the detachable devices.

Abstract: An inverter system, including a pre-conversion circuit, a post-conversion circuit, and a control circuit; the pre-conversion circuit is configured to convert a voltage of a power supply into a DC voltage and output the DC voltage to the post-conversion circuit; a voltage between the pre-conversion circuit and the post-conversion circuit is a DC bus voltage; the post-conversion circuit is configured to output an alternating current; the control circuit is configured to detect a DC component of an output terminal of the post-conversion circuit, calculate a difference value of a zero value and the DC component to obtain a DC component deviation value, and perform PI adjustment on the DC component deviation value to obtain a voltage compensation value; the voltage compensation value is used to adjust the DC bus voltage.

Abstract: A power management apparatus is provided with a power supply control unit for controlling the supply of power from a system to a facility load. In a state in which a storage cell mounted in a vehicle is electrically connected to the system, the power supply control unit acquires information relating to the storage cell status, and on the basis of the information and vehicle operation input, supplies power stored in the storage cell to at least one of the system and the load.

Abstract: A battery-powered control device may be configured to control an amount of power delivered to one or more electrical loads and provide various feedback associated with the control device and/or the electrical loads. The feedback may indicate a low battery condition and/or the amount of power delivered to the one or more electrical loads. The control device may include a light bar and/or one or more indicator lights for providing the feedback. The control device may operate in different modes including a normal mode and a low battery mode.

Abstract: A motor vehicle includes a vehicle including a motor, a battery, two or more wheels, an air pump, a compressed air tank, a pneumatic motor connected to the air tank, an alternator/generator connected to the pneumatic motor, the alternator/generator connected to a vehicle battery, the battery connected to the vehicle motor. The air pump provides air to the air tank, pressurized air from the air tank operates the pneumatic motor, the pneumatic motor operates the alternator/generator, the alternator/generator provides power to the battery; and the battery provides power to the motor and/or to one or more electrical components associated with the vehicle.

Abstract: The invention relates to an interference suppressor for a direct current circuit, a vehicle component, a high-voltage intermediate circuit and a vehicle. The interference suppressor for a direct current circuit, which comprises two conductors, is characterized in that the interference suppressor comprises a first connection for connecting the interference suppressor to a first conductor of the direct current circuit; a second connection for connecting the interference suppressor to a second conductor of the direct current circuit; a sensor, wherein the sensor can be coupled in noncontact manner to the direct current circuit and is designed to detect the passing of a predetermined limit value of a superimposed alternating voltage in the first conductor of the direct current circuit; and is designed, by impressing a current in the first connection, to reduce the alternating voltage in the first conductor of the direct current circuit substantially to the predetermined limit value.

Abstract: A battery power management system for vehicles and vessels requiring switching devices to disconnect mounted batteries from unit loads utilizing rules based logic. The battery power management system controls the switching devices to prevent over-discharging and over-charging of the batteries and to prevent excessive current drain. The battery power management system utilizes various timing parameters to coordinate connection and disconnection attempts and provides status information regarding the current state of protection of the batteries.