We design an urban intelligent distribution power network dynamic simulation system combining an authentic physical frame with simulated digital network by employing topology recognition and plug-and-play self-registration methods. The entire system can be monitored and maintained automatically by one single diagram from a cloud-based platform.
1. Plug and Play Technology
The plug and play mechanism for smart distribution devices based on the MQTT communication protocol. Process: (1) Installation of downstream smart devices, with the devices sending modulation signals to describe their information to the terminal unit; (2) the terminal actively registers this device information to the master station; (3) device information automatically goes online(in the master station).
2. Topology Recognition Technology
The underlying devices emit characteristic current signals, which are identified by the smart terminal to generate downstream topology files. The master station completes the topology mapping and associates it with the device information, accomplishing the automatic drawing of the physical network on the cloud platform topology diagram.
