A vehicle variable structure fuel cell power supply system
A fuel cell and power system technology, applied in battery/fuel cell control devices, battery/battery traction, power management, etc., can solve problems such as increasing system load, increasing the volume and quality of power generation systems, reducing power loss, The effect of minimizing overall power and improving utilization
Active Publication Date: 2022-08-09
FUZHOU UNIV
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Problems solved by technology
[0005] However, in the process of reasonably optimizing the fuel cell design with the help of auxiliary power, the existence of auxiliary power undoubtedly increases the volume and mass of the power generation system, and in the process of coordinating the joint power supply of fuel cells and auxiliary power, the auxiliary power conversion is added. Controller and other control algorithms directly increase the load of the system
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[0016] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.
[0017] The present invention provides a variable structure fuel cell power supply system for vehicles, which includes several fuel cell modules, and the several fuel cell modules are divided into two categories: minimum steerable unit modules and internal re-steerable fuel cell modules; wherein, The minimum operable unit module is composed of several fuel cells fixed in an internal series-parallel structure to achieve large gradient power regulation; the internal re-operable fuel cell module is composed of several fuel cells connected by switches to achieve small gradient power adjust. The fuel cell module independently supplies power to the vehicle AC load through the DC / AC inverter to meet the driving needs of the vehicle.
[0018] The following is a specific example of the present invention.
[0019] The structure of a vehicle variable s...
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The invention involves a type of vehicle -changing structural fuel cell power system.Including a number of fuel cell modules, divided into two types: minimum operational unit module and internal reconfuctable fuel cell module; among them, the minimum operating unit module consists of several internal string and combined structure fixed fuel cell monomers to achieve realizationLarge gradient power adjustment; the internal fuel cell module can be manipulated by the switching of several fuel cell monomers to achieve small gradient power adjustment.The fuel cell power supply is powered by the DC / AC inverter to the vehicle to meet the driving needs of the car to meet the driving needs of the car.The invention fuel cell system combines the optimal efficiency point of the fuel cell module, and the power battery module connection structure is calculated through power matching.Power supply near the best efficiency point, effectively reduce the complexity of the system, and meet the power demand for cars.
Description
technical field [0001] The invention relates to a fuel cell power supply system, in particular to a vehicle variable structure fuel cell power supply system. Background technique [0002] Compared with traditional energy sources (such as gasoline, diesel, etc.), hydrogen energy has a large number of superior properties: First, the utilization of hydrogen energy generally uses chemical reactions to make hydrogen and oxygen react to generate water to release energy. This process can achieve zero emissions, And no carbon-containing compounds are produced in the power generation process, which can achieve a virtuous cycle; secondly, hydrogen fuel has a high calorific value, and each 1kg of hydrogen can release energy of 142,600kJ of heat, which is much higher than the calorific value of gasoline 42,500kJ / kg and diesel. The calorific value is 43000kJ / kg; at the same time, in the process of energy conversion, hydrogen fuel can directly convert chemical energy into electrical energ...
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IPC IPC(8): B60L50/72B60L58/30
CPCB60L50/72B60L58/30Y02T10/72
Inventor 王亚雄张晨阳池训逞
Owner FUZHOU UNIV