A startup control method for a fuel cell is provided. The method includes calculating available power of a high-voltage battery when a startup of the fuel cell is requested. An air compressor is then driven based on a calculated magnitude of the available power of the high-voltage battery and a low-voltage battery is charged with the power of the high-voltage battery after the driving of the air compressor is completed.

A fuel cell power generation system that is mounted in a vehicle so as to be moved to a place that needs power is provided. The fuel cell power generation system and a control method thereof are capable of supplying stable voltage to a DC-AC power converter and/or an electric vehicle charger. It is possible to maintain constant voltage of electricity that is supplied to the DC-AC power converter and the electric vehicle charger using a battery capable of outputting DC voltage higher than output voltage of a fuel cell and to perform control such that a low current density period is avoided while voltage of the fuel cell is monitored, whereby durability is improved.

An apparatus for controlling a fuel cell of an environment-friendly vehicle, a system including the same, and a method thereof are provided. The apparatus includes a storage storing information mapping an amount of additional output of a fuel cell according to air density and a current battery state of a high voltage battery depending on a drive mode and a processor that controls an amount of output of the fuel cell in response to a required amount of output of a motor, the amount of output of the fuel cell being varied according to the air density, the current battery state, and the drive mode based on the information mapping the amount of additional output.

The ParaDice Process System is the interconnection of a renewable power source to power an ocean water electrolysis apparatus comprising a water container, an electrolysis cell, optionally a precious metal harvesting probe, a filtration system, and a settlement pond wherein the hydrogen generated as a result of electrolysis is supplied to either a hydrogen combustion engine or hydrogen turbine to power an electricity generator thereby creating a renewable zero carbon emission electric power generation system. The hydrogen gas is collected by a chlorine scrubber and transferred to either a hydrogen combustion engine or a hydrogen turbine. Where a hydrogen turbine is embodied the waste heat created therein is used to generate electricity and increase the performance of the filtration system and settlement pond.

A mobile hydrogen fueling system for use in fueling mobile hydrogen vehicles includes: a towing vehicle with a hydrogen powered fuel cell that powers the towing vehicle, and a trailer. The trailer includes a hydrogen storage tank, a hydrogen fuel transport device such as a gas compressor or a liquid pump, and a dispenser attached to the hydrogen tank that dispenses hydrogen to a receiving hydrogen tank. A controller regulates the hydrogen fuel transport device and thus the flow of hydrogen that the dispenser dispenses.

An energy storage system includes: a battery configured to at least store received electrical energy in a form of direct current, or output the stored electrical energy; a power conditioning system configured to convert an electrical characteristic to charge or discharge the battery; and a battery management system configured to monitor state information of the battery, wherein the battery includes a plurality of battery packs each including a respective plurality of battery cells, wherein the battery management system includes: battery pack circuit boards which are disposed in each of the plurality of battery packs, and configured to obtain state information of the plurality of battery cells included in each battery pack; and a main circuit board coupled to the battery pack circuit boards by a communication line, and configured to receive state information obtained by the battery pack circuit boards from each battery pack.

A fuel cell system includes: a fuel cell; a fuel cell step-up converter having an input terminal, wherein the input terminal is connected to the fuel cell; a secondary cell; a secondary cell step-up converter having an input terminal an output terminal, wherein the input terminal is connected to the secondary cell. wherein the output terminal is connected to an output terminal of the fuel cell step-up converter; and a control device configured to control at least the fuel cell step-up converter and the secondary cell step-up converter to control the fuel cell system, wherein, the control device executes interruption control when the control device executes continuity control and an output of the fuel cell system is requested to be greater than an output of the secondary cell in the continuity control, wherein the continuity control is a control to control the secondary cell step-up converter to output an input voltage from the secondary cell without stepping up the input voltage, wherein the interruption control is a control to interrupt an electrical connection between the fuel cell system and the secondary cell.

Battery systems, methods of in-situ grid-scale battery construction, and in-situ battery regeneration methods are disclosed. The battery system features controllable capacity regeneration for grid-scale energy storage. The battery system includes a battery comprising a plurality of cells. Each cell includes a cathode comprising cathode electrode materials disposed on a first current collector, an anode comprising anode electrode materials disposed on a second current collector, a separator or spacer disposed between the cathode and the anode an electrolyte to fill the battery in the spaces between electrodes. The battery system includes a battery system controller, wherein the battery system controller is configured to selectively charge and discharge the battery at a normal cutoff voltage and wherein the battery system controller is further configured to selectively charge and discharge the battery at a capacity regeneration voltage as part of a healing reaction to generate active electrode materials.

It is proposed a thermal management system for a fuel cell vehicle comprising: a first cooling circuit filled with a first coolant, having at least a first pump, a second cooling circuit filled with a second coolant, having at least a second pump, a third cooling circuit filled with a third coolant, having at least a third pump, wherein the first, second and third cooling circuits are fluidically independent from one another, wherein there is provided at least a selective heat exchanger arrangement, for selectively coupling thermally the third cooling circuit with the first cooling circuit and/or with the second cooling circuit, under predefined conditions.

Operating a machine includes supplying electric power from a fuel cell to a power bus connected to an electric motor and an energy storage device in a machine operated at a work site, and determining an expected efficiency gain condition based on at least one of terrain data of the work site or machine activity data of the machine. Operating a machine further includes prognostically limiting a power output of the fuel cell based on the determining an expected efficiency gain condition, and charging the energy storage device during occurrence of the expected efficiency gain condition using at least one of a regenerative energy device or the fuel cell. The energy storage device may be discharged during prognostically limiting a power output of the fuel cell so as to share a load demand of the power bus between the fuel cell and the energy storage device. Related apparatus and control logic is also disclosed.