A hydrogen storage assembly includes an enclosure substantially encompassing an electrolyzer, a hydrogen storage system, a hydrogen fuel cell, an electrochemical energy storage module, a power conversion system, and a control system. The electrolyzer is configured to separate, via electrolysis, water into hydrogen gas that is stored in the hydrogen storage system; the hydrogen fuel cell is configured to convert the stored hydrogen gas into electrical energy and water. The electrochemical energy storage module is configured to function as an energy buffer; the power conversion system is configured to convert the produced electrical energy to a desired form. The control system is configured to to control the storage and distribution of the stored hydrogen and electrical energy in an optimized manner to achieve predefined financial and energy-use objectives.

A fuel cell system installed in a vehicle includes: a fuel cell; a secondary battery; a load including a drive motor and an air compressor; a fuel cell converter; a secondary battery converter; a failure detection unit; a first state determination unit; a reverse rotation detection unit; and a control unit. The control unit performs a limp-home traveling control that supplies electric power from the secondary battery to the drive motor when the secondary battery converter fails. When the vehicle is not in the first state, the control unit prohibits regeneration of the drive motor. When the vehicle is in the first state, the control unit supplies a reaction current to the air compressor. When the reaction current is applied and a reverse rotation of the air compressor is detected, the control unit does not apply the reaction current thereafter.

A system includes a power generator to generate power from an reaction involving a first fuel reactant and a second fuel reactant, a fuel reactant supply source to supply the first fuel reactant to the power generator via a fuel supply line having a fuel expansion region, a radiant fluid circuit for circulation of a radiant fluid configured to cool the power generator, and one or more thermoelectric generators in thermal contact with the fuel expansion region and the radiant fluid circuit downstream of the fuel cell to generate electric power via a Seebeck effect using at least a portion of the waste heat generated by the power generator.

To provide a warming-up system in which a period of time taken to warm up a fuel cell is shorter than that for conventional ones. A warming-up system according to an embodiment includes a fuel cell, a motor, a rotation shaft, a speed reducer, a measuring unit, and a control unit. The motor convert electrical power generated by the fuel cell into a rotative force. The speed reducer brake the rotation shaft that is rotating. The measuring unit measure a temperature of the fuel cell. The control unit is configured to determine whether to perform warming up for the fuel cell, based on the temperature. When the control unit determines to perform the warming up, the control unit causes the motor and the speed reducer to operate, and uses heat generated in the fuel cell and heat generated in the speed reducer to warm up the fuel cell.

To provide an electrical power system and an electrical power control device that make it possible to improve fuel efficiency compared to that conventionally possible. An electrical power system according to an embodiment includes fuel cells at a count of n, n representing an integer of 2 or greater, and a controller. The fuel cells are each configured to generate electrical power through electrochemical reactions. The controller is configured to set, based on a required output required in accordance with electrical power to be consumed by a load, an operation mode for each of the fuel cells to one mode determined from a plurality of modes including a first electrical power generation mode under which starting and stopping of generation of electrical power are repeated, a second electrical power generation mode under which generation of electrical power continues, and a stop mode under which generation of electrical power is stopped.

Provided is a warm-up apparatus for a fuel cell for an electrically driven vehicle in which a fuel cell and a secondary battery are mounted as power sources of a motor for travelling, and which, when charging of the secondary battery is required, stops operation of the fuel cell and charges the secondary battery with electric power from an external power source by means of a battery charger. The warm-up apparatus includes: a secondary battery cooling circuit that cools the secondary battery; a fuel cell cooling circuit that cools the fuel cell; a connection passage that connects the secondary battery cooling circuit and the fuel cell cooling circuit through a switching valve; and a warm-up control unit that, during charging of the secondary battery, controls the switching valve so that the secondary battery cooling circuit and the fuel cell cooling circuit communicate through the connection passage.

An energy management system having a fuel cell apparatus (150) as a power generator that generates power using fuel, and an EMS (200) that communicates with the fuel cell apparatus (150). The EMS (200) receives messages that indicate a type of the fuel cell apparatus (150), from the fuel cell apparatus (150).

A fuel cell system includes a drive motor, a fuel cell, an auxiliary machine, a secondary battery, a temperature sensor, a current sensor, and a control section. The control section controls the secondary battery for discharging by driving the drive motor or the auxiliary machine and for charging through power generation by the fuel cell or regeneration by the drive motor when a temperature measured by the temperature sensor is lower than a specified value.

A method and system for managing energy of a fuel cell vehicle and a vehicle. The method is applied to a vehicle including a fuel cell, the vehicle further includes a power battery and a motor, the fuel cell and the power battery are electrically connected to the motor, and the method includes: acquiring a required power of the vehicle, a rated output power of the fuel cell and a current energy efficiency of the power battery; and according to at least one of the required power, the rated output power and the current energy efficiency, controlling the power battery to operate, and controlling the fuel cell to supply electric power at the rated output power or stop supplying electric power. In the present disclosure, not only the power battery can operate in the state of a reasonable energy efficiency to the largest extent, but also the fuel cell can always be in the two states of operating at the rated output power or of stopping operating, which prevents the problem that the fuel cell frequently operates at a non-rated output power, which results in a low economic efficiency of the hydrogen fuel and affects the economic efficiency of the entire vehicle.

A vertical take-off and landing aircraft including a wing structure including a wing, a rotor operatively supported by the wing, and a hybrid power system configured to drive the rotor, the hybrid power system including a first power system and a second power system, wherein a first energy source for the first power system is different than a second energy source for the second power system.