A Study of Thermal Power Plant Feedwater System with Modeling and L.Q.Controller

화력발전소 보일러 급수제어 계통의 모델링과 L.Q. 제어기 적용에 관한 연구

A new thermal power plant feed-water system model, which is based on Astrom, is presented. Astrom's model has some difficulties in applying to practical systems because it is not able to measure the heat and energy transfer loss. Hence, in order to make up for these difficulties, the Gas State Equation is added to the model. Computer simulations are performed to show the validity of the new model at thermal power plant with practical boiler operating data and to verify the L.Q. controller effect on boiler drum level system.