Heating furnace temperature controller design method based on improved Dahlin algorithm

The invention discloses a heating furnace temperature controller design method based on an improved Dahlin algorithm.For the nonlinear characteristic of a heating furnace, according to the heating furnace temperature controller design method, different temperature set value jump intervals are set according to the size differences of temperature difference jump values of set target temperature and initial temperature, and different expected closed loop transfer functions are set in all the intervals to design a temperature controller.When heating furnace temperature controller design is conducted, the problems that for a traditional Dahlin algorithm temperature controller, the adjusting time is long, and steady state error elimination is slow are considered, the Dahlin algorithm is combined with integral control, special processing is conducted on control quantity limitation, the steady state error is further eliminated, the adjusting time is further shortened, and control over the heating furnace temperature