Delay-dependent Robust Stability Analysis for Uncertain Nonlinear Systems

At all-state test of SCR system, the maximum NOx emission value occurs at 1100r/min and 50% of The throttle opening degree condition. The NOx emission value is 2611.08ppm. During simulation research, Influencing factors such as urea spray, reaction temperature, space velocity and NH3/NOx concentration proportion are elaborated. During 0.4s simulation cycle, it shows better atomize results and better homogeneity. The reaction temperature on catalyst is kept at 319 degrees C value which is helpful for continuous SCR reaction. NH3/NO concentration proportion is kept from 0.2 to 0.3, which NOx reduction rate is from 65% to 75% in accordance with test results on the base of 1200r/min condition. The research can provide references for optimization on compact SCR system.