Design of Temperature Control System of Electric Boiler

The electric boiler as object controlloed has the characteristics of nonlinear, time-varying and large lag, and the temperature control system of it has been a challenge. In order to improve the control performance, a novel temperature control system was designed. The system consists of temperature controller, temperature acquisition, temperature display, serial communication, and warning circuit. The core controller was relized by DSP 2407, which can execute advanced control algorithm. A hybird control algorithm was presented, which mergeed PID and fuzzy control. Simulation experiment of PID and presented algorithms were carried on respectively, and the simulation results showed that the system designed has good dynamic and still performance. Furthermore, the system is simple and has a certain application value.