Distributed PID (Proportion Integration Differentiation) predictive function control method for furnace box temperature of waste plastic cracking furnace
A technology for predicting function control and furnace temperature, applied in the field of automation, can solve problems such as high model requirements, poor steady-state performance, and difficulty in achieving control effects with DPFC methods, and achieve good control quality and improved degrees of freedom
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[0100] Take the furnace temperature control of waste plastic pyrolysis furnace as an example:
[0101] The furnace temperature control system of the waste plastic pyrolysis furnace is a typical coupling process with multiple variables and hysteresis, and the adjustment method adopts the opening of the combustion nozzle.
[0102] Step 1. Establish the step response model vector of the furnace temperature object through the real-time step response data of the waste plastics pyrolysis furnace furnace temperature control system. The specific method is:
[0103] 1.1 According to the idea of distributed control, a large-scale system with N input and N output is dispersed into N furnace subsystems;
[0104] 1.2 Under steady-state conditions, take the opening of the combustion nozzle of the j-th furnace as the input to conduct a step response experiment on the output temperature of the i-th furnace, and record the j-th (1≤j≤N) input and the i-th input respectively. (1≤i≤N) output s...
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