A power converter with an inverter that is configured to transform electrical power between a DC-side of the power converter and an AC-side of the power converter, includes a first port and a second port arranged on the AC-side and a third port and a fourth port arranged on the DC-side of the power converter. The first port is configured to be operatively connected to an AC-grid, the second port is configured to be operatively connected to an AC-load, the third port is configured to be operatively connected to an external power source, and the fourth port is configured to be operatively connected to a rechargeable DC-power storage. The power converter includes a DC/DC-converter arranged between the third port and the inverter, which is configured to transfer electrical power provided by the external power source from the third port to the inverter. The inverter is configured to be grid forming and to provide electrical power to the second port in case of a power supply outage at the first port, the power converter further includes a control unit configured to monitor the third port and to detect parameters of the electrical power provided via the third port.

A control system for controlling a work machine includes an engine for producing power to propel the work machine during a normal operating mode, a cooling system for cooling at least the engine during the normal operating mode, and a controller for controlling the cleaning system during the normal operating mode and a clean operating mode. During the normal operating mode, the engine is running and the controller operably controls a cooling fan of the cooling system to rotate in a first rotational direction to produce a first air flow in a first direction. During the clean operating mode, the engine is not running and the controller operably controls the cooling fan to rotate in a second rotational direction to produce a second air flow in a second direction. The first rotational direction is opposite the second rotational direction, and the first direction is opposite the second direction.

A vehicle power supply system configured to be charged by an electric vehicle (EV) charging station that performs charging with a voltage equal to or more than a predetermined lower limit voltage. The vehicle power supply system includes a battery having a rated voltage lower than the lower limit voltage; a capacitor electrically connected in series to the battery, wherein a sum of the rated voltage of the battery and a rated voltage of the capacitor is greater than the first voltage; and an interface configured to receive electric power from the EV charging station. The vehicle power supply system also includes circuitry configured to receive electric power from the EV charging station, and charge the battery and the capacitor using the received electric power.

A power distribution node for a power architecture, and method for operating, includes a microgenerator configured to generate a supply of electrical power, and a power distribution unit connected with a power supply bus and the microgenerator and configured to selectively energize at least a subset of electrical loads disposed proximately to the power distribution node. The energizing power is operably supplied by at least one of the power supply bus or the microgenerator.

A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable power source can be configured for reduced fuel consumption at idle. The vehicle drive system includes an electric motor in direct or indirect mechanical communication with the first prime mover. The control system causes fuel to be eliminated to the first prime mover while the vehicle is stopped and causes the electric motor to rotate the first prime mover at a speed, thereby reducing fuel consumption at idle for the vehicle.

A method and system are provided for controlling transfer switch operations in a power distribution system. The method and system involve monitoring an electrical parameter of an electrical signal from a first power source associated with supplying power to a load; determining whether the electrical parameter satisfies a parameter threshold; selecting to increment or decrement a count value in accordance with the determination; and responsive to determining that the count value satisfies a first count threshold, initiating a start signal to start operation of a second power source to supply power to the load. The electrical parameter can be voltage or frequency, or other parameter(s) from which a power quality of the electrical signal may be evaluated. The electrical signal can be a single or polyphase electrical signal.

A power management and selection system for a class 8 tractor trailer, directs excess solar and vehicular charge capacity to an auxiliary load by measuring available charge capacity from a reefer power system including a reefer battery, solar panel and charge controller for moderating solar power to the reefer batter, and measuring available charge capacity from a cab vehicle power system including a propulsion system battery and alternator. Charge logic, in a selector configured for switching charge capacity to the auxiliary load, determines which of the reefer power system and cab vehicle power system has the most potential excess charge capacity, and directs the determined excess charge capacity to the auxiliary load, while the measured available charge capacity remains sufficient for powering the respective reefer power system or cab vehicle power system.

A power converter with an inverter that is configured to transform electrical power between a DC-side of the power converter and an AC-side of the power converter, includes a first port operatively connected to an AC-grid, a second port operatively connected to an AC-load, a third port connected to an external power source, and a fourth port operatively connected to a rechargeable DC-power storage. The power converter includes a DC/DC-converter between the third port and the inverter, to transfer electrical power provided by the external power source from the third port to the inverter. The inverter is configured to be grid forming and provide electrical power to the second port upon a power supply outage at the first port, the power converter includes a control unit to monitor the third port and detect parameters of the electrical power provided via the third port.

This invention provides an enhanced electric vehicle battery powering and recharging system technology, particularly when the vehicle is moving or when wind or air comes in contact with the vehicle wind-power electric generator propeller system. The invention can be installed in partial or fully electric land, air, or water vehicles, to power or recharge the vehicle's battery system. This invention will extend a vehicle's travel distance before or without stopping and connecting to fossil fuel or other stationary rechargeable power sources. The vehicle's wind-powered electric generator invention is an additional battery charging technology that will support any partial or fully electric-powered vehicle. The invention can be installed in a partial or fully electric-powered vehicle as a hardware component and software program, without any interferences with existing vehicle electric battery charging systems.

A fuel battery system in which the complexity of a constitution is able to be minimized is provided. A fuel battery system includes a battery (11), a motor (13), a fuel battery stack (15), and an electric power control unit (17). The electric power control unit (17) includes a battery control unit (21) connected to the battery (11), first and second bridge circuits (23A and 23B) connected in parallel with and integrated with the battery control unit (21), and an electric power control unit (25) including the second bridge circuit (23B) and a three-phase reactor (35). The electric power control unit (25) is connected to the fuel battery stack (15) so that stepping-up control is possible.