Abstract:

CARMA is adopted for modeling the relationship between the valve location and pressure of single gas collecting main.Model order can be determined by adopting modeling principle with large information entropy.Parameter estimation is carried out taking minimizing the quadratic sum of deviation values actual value and calculated value as objective function，so as to identify the model of gas collecting main.The comparison result between predicted pressure and actual pressure proves the effectiveness of CARMA in the control of gas collecting main pressure.