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Simulation of an Unmanned Underwater Vehicle (UUV): A Multi-Rate Simulation

机译:无人水下航行器(UUV)的仿真:多速率仿真

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The problem of developing real-time simulationsrnthat include both high-speed (<10 μS frame time) andrnslower components can be alleviated using multi-raternsimulation. Collaboration between California StaternUniversity, Chico; the University of South Carolina; and thernUniversity of Glasgow, aims to develop a multi-raterndemonstration example that includes a power electronicrnsubsystem requiring high-speed simulation. The selectedrnapplication is an unmanned underwater vehicle (UUV) thatrnuses a battery as its energy source feeding an a.c. motorrndrive through a d.c. to a.c. converter. The drive powers thernvessel which is modeled as a 6-degree of freedom platformrnwith control surfaces.rnThe model separates the system into subsystems that arernsimulated with different frame rates: the converter (fast), itsrncontroller (fast medium) the motor drive (slow medium),rnand the vessel and the battery (slow). The initial effort aimsrnto combine the subsystems within a VTB environment usingrna new VTB multi-rate solver. Three different programmingrnapproaches have been used for the subsystems. Thernconverter and controller are programmed using C++ coderndeveloped for high-speed real-time simulation at Chico. Thernelectric drive uses native VTB models and the model for thernvessel is written in Matlab.
机译:使用多栅格仿真可以缓解开发同时包含高速(<10μS帧时间)和较慢组件的实时仿真的问题。加州州立大学奇科分校之间的合作;南卡罗来纳大学格拉斯哥大学的目标是开发一个多雷达演示示例,其中包括需要高速仿真的电力电子子系统。选择的应用是无人水下航行器(UUV),它使用电池作为其能量来为交流电供电。通过直流电驱动到交流转换器。驱动器为加热容器供电,该加热容器建模为带有控制面的6自由度平台,容器和电池(慢)。最初的工作旨在使用新的VTB多速率求解器在VTB环境中组合子系统。子系统使用了三种不同的编程方法。转换器和控制器使用Chico专门为高速实时仿真开发的C ++代码进行编程。电驱动器使用本地VTB模型,而容器模型是用Matlab编写的。

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