基于模块化建模法的A320电源系统功能模型

摘要

在飞机电源系统优化建模中,针对A320故障诊断模拟机电源系统结构复杂、故障种类繁多、信息流难以控制等特点,传统的建模方法难以描述系统的复杂性特点问题,在已有建模仿真的基础上,提出模块化、标准化建模方法和故障注入方法相结合的功能模型.模型采用离散的状态变量描述系统行为和功能,增加了故障扰动输入,定义了传输规则,给出了关联矩阵以及功能表达式处理故障的算法,并以组件主汇流条转换接触器的建模和仿真为例,所有的组件都能通过共享规则以及输入输出关系建立完整的电源系统模型.仿真结果证明,改进模型可行,具有一定的指导意义和实用性.%A novel function model combined modularity and standardization approach with fault injection method was proposed based on the related current models. The new model describes system's function with discrete variable, adds fault input, defines transmission rules and gives relation matrix algorithms. The modeling and simulating of AC ESS BUS switching contactor was finished as an example. All the components can be integrated through sharing information. Simulation result shows that this model is feasible, practicable and significant.