Operation Optimization of a Coal-fired Power Plant Integrated with Carbon Capture System Considering Load-following Performance

An operational optimization method was proposed for coal-fired power plant integrated with carbon capture system considering load following performance. The method was based on a steady-state model and a closed-loop dynamic model of the integrated system. Various performance indexes including fuel costs, maintenance costs, carbon emission penalty costs and power load following deviation penalty costs were considered to optimize the electric and carbon operation output set-points. Results show that the proposed method can reduce the short time-scale power load following deviation penalty cost by 25.86% and the overall system operating cost by 0.57% compared with the conventional methods, achieveing a coordinated and flexible operation of the coal-fired power plant integrated with carbon capture system.