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MODELING AND TESTING OF FAST-FILL CONTROLALGORITHMS FOR HYDROGEN FUELING

机译：氢气填充快速填充控制算法的建模与测试

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摘要

The Gas Technology Institute has previously developed a natural gas vehiclerndispenser control algorithm [1] that insures complete and safe fast filling of NGVrncylinders. Without this approach, NGV customers were experiencing reducedrnvehicle range, due to the temperature rise in the cylinder gas during fueling. Arncomplex model [2], based on first principle thermodynamics of the fast fillrnprocess, and an associated computer program, called CHARGE, was developedrnand translated into a control algorithm. After extensive laboratory and fieldtestingrnverified the accuracy of the method, patents [3], [4] were obtained. Therncontrol algorithm, AccuFillTM, is licensed to several NGV dispenser businesses.rnThe US DOE and GTI are pursuing a $4.2 million cost-shared program [5] torndevelop a prototype commercial hydrogen fueling station based on steamrnreforming of natural gas. A task in this project is to develop a methodology andrnassociated dispenser and control system for accurately and completely fast fillingrn(less than five minutes) on-board vehicle hydrogen cylinders. Accurate andrncomplete hydrogen cylinder filling is important to assure vehicle owners achievernmaximum driving range. There are four steps in the development process:rn1) Development of a first-principle thermodynamic model (basedrnon CHARGE)rn2) Empirical cylinder testing under a variety of temperature andrnpressure conditionsrn3) Regression analyses to validate the first-principlernthermodynamic model with the empirical datarn4) Development, software implementation, and testing of arndispenser algorithmrnThis paper summarizes the status of the hydrogen fast fill algorithm and comparesrnpreliminary model and test results obtained to date during extensive testing ofrndifferent high-pressure hydrogen cylinders under a variety of operatingrnconditions.
机译：气体技术研究所以前已经开发了一种天然气汽车分配器控制算法[1]，可确保NGVrncylinders的完整和安全快速填充。如果没有这种方法，由于加气期间气缸内气体的温度升高，NGV客户的车辆行驶距离会缩小。基于快速填充过程的第一原理热力学的Arncomplex模型[2]和相关的计算机程序CHARGE被开发并转化为控制算法。经过广泛的实验室和现场测试验证了该方法的准确性，获得了专利[3]，[4]。该控制算法AccuFillTM已获NGV加气机几家公司使用。美国能源部和GTI正在实施一项420万美元的成本分摊计划[5]，以基于天然气的蒸汽重整技术开发一种原型商业加氢站。该项目的任务是开发一种与方法相关的分配器和控制系统，以准确，完全快速地填充（少于五分钟）车载氢气瓶。准确而完整的氢气瓶填充对于确保车主达到最大行驶距离很重要。开发过程分为四个步骤：rn1）建立第一原理热力学模型（basedrnon CHARGE）rn2）在各种温度和压力条件下进行经验汽缸测试rn3）回归分析以通过经验数据验证第一原理热力学模型rn4） arndispenser算法的开发，软件实现和测试本文总结了氢快速填充算法的现状，并比较了在各种操作条件下对不同高压氢气瓶进行广泛测试期间迄今为止获得的初步模型和测试结果。

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