Multiprocessor communication system for three phase servo stabilizer

This paper proposes the design and implementation of microcontroller based three phase voltage stabilizer. The basic building block for this design include keyboard, master microcontroller, autotransformer, sensing transformer, motor control, LCD display, control unit. User communicates with the system through input switch and LCD display. The proposed architecture consists of centralized control unit and distributed control unit. Centralized control communicates with distributed control via I2C communication. In case of failure of centralized control distributed control work As a result when voltage is low or high servo motor adjust the wiper and gives constant voltage at the output to the set point provided.