基于参数估计的锂离子超级电容系统故障诊断研究

Research of Lithium-ion Ultracapacitor System Based on the Parameter Estimation

根据性能试验数据和锂离子混合超级电容器的基本原理,建立了适用于新型锂离子超级电容器的仿真模型。然后基于控制系统线性空间模型,采用参数估计的方法,利用输出残差信息对系统传感器及其他元部件故障进行故障诊断。在Mat-lab/Simulink环境下对系统进行仿真计算,结果表明,所采用的故障诊断策略可以有效地诊断出相关故障,具有较好的工程价值。

This paper bulid a model of the lithi-um-ion ultracapacitor based on the performace expriment and the principle of the lithium-ion ul-tracpacitor. Then according to the state space mod-els, this paper adopt the parameter estimation and the residual error to perform faut diagnosis on the current sensor and other electric component. The fault diagnosis strategy is tested in a simulation systerm in the Matlab/Simulink environment, the result indicates that the fault diagnosis strategy is effective and has the good potential of engineering application.