Identification of Steam-driven Centrifugal Pump System

This paper deals with the mathematical model of a steam-driven centrifugal pump system, which consists of steam control valve, turbine and centrifugal pump. The identification process combines mechanism modelling and data modelling, namely, the model structure is derived by the physical mechanism of the system, and the unknown parameters of model structure are estimated by Total least Squares (TLS). Using the operation data of physical system, the validity of the proposed model and its parameter estimation method are verified. The calculation results shows that the proposed model can well interpret and predict the state of real system.