I. Introduction
Microgrid is a special cyber-physical system [1], [2], which tightly integrates with its users and fuses many abstract knowledge including management, optimization, control, data processing, and so forth. This fusion feature of multi-information and technology can make microgrid a good performances, meanwhile, it also inevitably brings many contradictions and problems [3]–[8]. Fault diagnosis of the open switch of microgrid inverter is one of these research topics.