汽车电源系统的分析及仿真

【作者】 徐云云；

【导师】 张铁柱；

【作者基本信息】 青岛大学 ， 车辆工程， 2005， 硕士

【摘要】 本文在总结国内外电力系统和汽车电源系统数字仿真的研究的基础上,开展了利用MATLAB对汽车电源系统数字仿真技术的研究,对系统的建模和仿真方法进行了分析。 准确模拟发电机是汽车电源系统仿真的关键之一。本文分析利用汽车发电机的基本方程,用MATLAB提供的仿真软件包SIMULINK,开发出汽车电源发电机的模型。该模型可以对不同特性的发电机进行仿真。本文简要地分析了汽车电源系统的调压器和蓄电池,并分别给出模型。利用MATLAB提供的电气系统模块(PSB),建立了二极管整流桥、滤波电路等元件的仿真模型。根据MATLAB不同模块之间的连接特性,将发电机模型与上述其它元件的模型连接起来,可以方便的组成不同类型的汽车电源系统。本文以解放CA1091型载货汽车电源系统为例进行建模和仿真。针对仿真结果进行分析,在分析结果的基础上提出了汽车发动机废气能量回收装置在汽车电源系统中应用的可行性。 利用本文开发的模型,不仅能模拟电源系统及其部件正常工作时的稳态和动态特性,而且能模拟其故障状态,有助于对汽车电源系统进行分析和设计。本文的研究成果为汽车电源系统数字仿真提供了新的思路和方法。更多还原

【Abstract】 Based on the simulation of the power systems and automobile power system at home and aboard, the research on the simulation of the automobile power generating system is performed by using MATLAB in this paper, and the analysis of system modeling and a new method of simulation is described.Simulating the generators is the key to automobile power system simulation. According to the basal equation of generator, a simulation model of vehicle generator is developed by using SIMULINK, which is a software package supplied by MATLAB and can be used.to simulate and analyze a dynamic system. Using this model, simulation of generators with different characters can be implemented. Meanwhile, the Automatic Voltage Regulators, an important part of automobile power system and Pb-acid battery and filter circuit, are established by using PSB, which is also supplied by MATLAB. And according to characters among different block sets in MATLAB, the generator model and the other models are linked together. So the simulation of different kinds of automobile power system can be established easily. In this paper, Lib CA1091 carry cargo automobile’s power system, as an example, is simulated. According to the analysis of the simulation result, putting forward the feasibility of the recycle equipment of automobile engine’s waste gas energy applying to automobile power system.Using this model, not only the normal static and dynamic characters of automobile power system but also the fault state system can be simulated. It is useful to analyze and design the automobile power system. The work of this dissertation has presented a new idea and method for the simulation of the automobile power generating system.更多还原