This paper deals with the fault detection problem for multi time scale systems. To save network resources, a novel dynamic event-triggered protocol with more generality and higher flexibility of parameters is proposed. The main novelties are condensed as follows, firstly, a modified fault detection observer and a quadratic residual evaluation function are synthetically designed; secondly, the sufficient condition is proved to guarantee that the estimation error system is asymptotically stable and satisfies the specified performance index; finally, a Lyapunov function is designed to composite the multi time scale perturbation parameter and the influence of the dynamic event-triggered scheme. Finally, a practical experiment on a type of grid connected converters is given to verify the proposed approach.

中文翻译：

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多时间尺度系统的动态事件触发故障检测：在并网转换器中的应用

本文研究了多时间尺度系统的故障检测问题。为了节省网络资源，提出了一种更具通用性、参数灵活性更高的动态事件触发协议。主要创新点概括如下：首先，综合设计了改进的故障检测观测器和二次残差评价函数；其次，证明了保证估计误差系统渐近稳定且满足规定性能指标的充分条件；最后，设计了Lyapunov函数来综合多时间尺度扰动参数和动态事件触发方案的影响。最后，对一种并网变流器进行了实际实验来验证所提出的方法。