Efficiency optimization control method of fuel cell array system for tramcar

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, electrochemical generators, circuits, etc., can solve the problems of less research on power generation arrays, poor fuel economy, and short service life of fuel cells, so as to achieve easy digital realization and improve Efficiency, the effect of optimizing efficiency

Active Publication Date: 2018-02-13
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0005] However, there is relatively little research on fuel cell power generation arrays at home and abroad, and there is no relatively detailed explanation and explanation for the power distribution method of multi-stack array fuel cell systems
It is impossible to ensure that each unit in...

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  • Efficiency optimization control method of fuel cell array system for tramcar
  • Efficiency optimization control method of fuel cell array system for tramcar
  • Efficiency optimization control method of fuel cell array system for tramcar

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0057] In this example, see figure 1 As shown, the present invention proposes an efficiency optimization control method for a fuel cell array system for trams, including an off-line calculation process and an on-line control process;

[0058] The off-line computing process includes steps:

[0059] S100. Obtain the efficiency curve of a single fuel cell array branch under different output powers by calculating the off-line data; fit the efficiency curve through the efficiency curve to obtain a function of the efficiency changing with the output power; calculate the efficiency with the output power Variation as a function of the efficiency of fuel cell arrays used in parallel;

[0060] S200, calculating the breakpoint power of the fuel cell array branches used in parallel...

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Abstract

The invention discloses an efficiency optimization control method of a fuel cell array system for a tramcar. The efficiency optimization control method comprises an off-line calculation process and anonline control process, wherein the off-line calculation process comprises the following steps: an efficiency curve of a single fuel cell array under different output powers is acquired through an off-line data collection module, and a function of efficiency varying with the output powers is obtained through an efficiency curve fitting module, which is efficiency for optimizing the parallel use of the fuel cell array; then the turning power when the fuel cell array is used in parallel is obtained through a turning power calculation module; the online control process comprises the following steps: the output current and the busbar voltage of each branch are obtained through a data acquisition module, an output power value required for each fuel cell branch is obtained through a power distribution module, then the corresponding control quantity is obtained according to the obtained output power value and in combination a control quantity calculation module, and finally, a correspondingimpulse signal is obtained through a PWM (Pulse-Width Modulation) module, so that the control on the fuel cell array system is completed, and the system efficiency is optimized.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, in particular to an efficiency optimization control method of a fuel cell array system for trams. Background technique [0002] Today's energy problem is a serious problem that cannot be ignored. The traditional fossil energy is decreasing or even exhausted, which can no longer meet the daily needs of human beings. As a result, more and more new high-quality energy sources are emerging, and at the same time, it is necessary to master and apply advanced energy technologies. The development and utilization of new, clean and renewable energy sources is imperative. With the rapid rise of distributed power generation technology, fuel cells, as an important part of distributed power generation, have attracted widespread attention for their clean and efficient features. Moreover, the fuel cell has the characteristics of low operating temperature, low noise, fast start-up, and no pollution, and is a ...

Claims

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Application Information

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IPC IPC(8): H01M8/04992
CPCH01M8/04992Y02E60/50
Inventor 朱亚男陈维荣李奇洪志湖王天宏邓惠文尚伟林
Owner SOUTHWEST JIAOTONG UNIV
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