Control method for single duct VAV terminal devices based on IMC and PID control

Presents the working principle of single duct variable air volume (VAV) air conditioning terminal devices. According to the law of energy conservation, establishes the mathematical model of the room with VAV air conditioning. Proposes an all-pole approximation of the internal model PID control method with the internal model control and PID control. The simulation result with Matlab shows that the control effect is desirable.