Investigation on compatible remote fault diagnosis system for power electronic equipments

In different power electronic equipments, the circuit topologies and signal´s levels of voltage/current are usually different. So the fault diagnosis models for these equipments are also different. Based on the power electronics, fault diagnosis and network technology, a distributed system with remote fault diagnosis function and high compatibility is presented in the paper. It puts emphasis on introducing the system structure, real-time and synchronous data acquisition method, on-line and off-line fault diagnosis, as well as compatibility design for power electronic equipments.