基于Modelica的纯电动客车动力系统建模、仿真和优化

发布时间：2018-01-05 12:10

本文关键词：基于Modelica的纯电动客车动力系统建模、仿真和优化　出处：《郑州大学》2017年硕士论文　论文类型：学位论文

【摘要】：近年来,由于资源的问题,国内外都在致力于探索新能源。在汽车行业,纯电动汽车发展尤为迅猛,其中纯电动客车的研究是汽车领域中的重点。纯电动客车是涉及到多领域多学科的复杂系统,开发纯电动客车替代原有的燃料客车应用于公共交通,对缓解环境压力可以起到很大的作用。动力系统是研究纯电动客车的重中之重。纯电动客车动力系统是一个多领域相互耦合的综合系统,传统的单一领域内仿真已不能满足需求,采用多领域建模对纯电动客车动力系统的建模仿真已成为必然。本课题主要运用基于模型的系统工程方法(Model Based System Engineering,MBSE),应用多领域建模语言Modelica建立了纯电动客车模型库。利用该模型库建立了四轮毂纯电动客车动力的仿真模型,并进行了仿真分析,为纯电动客车的研究和发展提供了一种更为有效和快捷的方法。主要内容包括:1.分析了Modelica语言的建模特点以及标准库和MBSE建模理论。主要分析了Modelica建模语言的特点,基于模型的系统工程(MBSE),支持Modelica语言的软件工具和Modelica自带的某些标准库。2.纯电动客车动力系统的构架。主要分析了纯电动客车动力系统的组成和布局形式,确定了纯电动客车动力系统的建模方法。3.eBusLib模型库的建立。根据纯电动客车动力系统各部件的动力性能以及特点,依据Modelica语言建立了eBusLib纯电动客车模型库,并根据该库中基础组件建立了四轮毂纯电动客车动力系统模型。4.纯电动客车动力系统的仿真和优化。根据给出的纯电动客车动力系统模型,采用欧洲循环路况(NEDC)对其进行仿真,并对某中型纯电动客车进行了方案优化。
[Abstract]:In recent years, due to the problem of resources, both at home and abroad are devoted to the exploration of new energy. In the automotive industry, especially the rapid development of pure electric vehicles, including pure electric bus is the focus of research in the field of automobiles. The pure electric bus is complex system which involves many fields, the development of pure electric bus alternative fuel bus the original application in the public transport, to ease the pressure on the environment can play a significant role. Power system is the priority among priorities of pure electric bus. The pure electric bus power system is an integrated system of multi field coupling, simulation has been unable to meet the demand of traditional single field, using the multi domain modeling and simulation the pure electric bus power system has become inevitable. This topic mainly uses the system engineering method based on model (Model Based System Engineering, MBSE), the application of multi domain modeling language Modelica The pure electric bus model library. The model base established the simulation model of four wheel electric bus power, and simulation analysis for the research and development of pure electric bus provides a more effective and efficient method. The main contents include: 1. analysis of the Modelica language modeling characteristics and standard library and the MBSE modeling theory. Analyzes the main features of Modelica modeling language, model based system engineering (MBSE) framework, some standard library.2. pure electric bus power system to support the Modelica language software tools and built-in Modelica. The main analysis of the composition and layout of pure electric bus power system, to determine the establishment of modeling method of pure electric bus power system.3.eBusLib model library. According to the dynamic performance of various components of pure electric bus power system and characteristics, based on the Modelica language eBusLib established Pure electric bus model base, and simulation and optimization of power system of four wheel pure electric bus power system model.4. pure electric bus is established based on the basis of the library components. According to the pure electric bus power system model is given, the European road cycle (NEDC) and the simulation of a medium-sized electric bus to the optimization scheme.

【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U469.72;TP391.9

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