Control Strategy Design of Solid SCR Based on Matlab / Simulink

Simulink is a block diagram of a design environment based on Matlab simulation tool. It can be used for dynamic system modeling,simulation and analysis. Solid selective catalytic reduction(SCR) experimental control system was established by application of Simulink,and modular design was used. According to the loop simulation,the amount of NH3 injection was determined. MC9S12d64 microcontroller interface device registers was configured by using Code Warrior software. Experimental results showed that the control system can meet the test requirements of SCR. NH3 injection amount varied according to catalyst temperature and space velocity.