Application Research of Dynamic Matrix Control for Semiconductor Refrigeration

According to the Peltier effect and aiming at the characteristic of semiconductor refrigeration,dynamic matrix control (DMC) was presented to regulate the refrigerating temperature.A finite unit-step response sequence of the controlled object, as the model of practical system,was obtained through a serial of measurements.Aiming at the model,temperature control simulation using dynamic matrix control method was accomplished in MATLAB.Simulation results show that compared with traditional PID and model deviation compensation,DMC has better dynamic performance,as well as good stability and high tracking precision, and is insensitive to model variation in small range.