The Monitor And Control Power Supply System Based On Field Bus And Loads Character Research

With more attention to the power quality problem on industry,it is necessaryto build a consummate monitor and control system .In this thesis, a monitor andcontrol system based on PROFIBUS-DP field bus is developed,including thedesign of master station, the configuration of the software and HMI. At the sametime, the hardware and software of intelligent slave station are alsodesigned. The net-link and digital communication from master station toslave station are achieved via the design of double slave station scheme.According to the simulation with MATLAB and experiment, the restartcharacteristic of induction-motor loads in the case of voltage sag isanalyzed, the concept of induction-motors'restarting control is putforward based on the field bus system.