A detailed optimization model for combined cooling, heat and power system operation planning
A detailed optimization model is presented for planning the operation of combined cooling,heat and power(CCHP)energy systems.The purpose is,given the design of a cogeneration system,to determine an operating strategy that allows maximizing the gross margin of operation while taking into account time-varying loads,tariffs and ambient conditions.The model is capable of considering the simultaneous use of different prime movers(generating electricity and heat),auxiliary boilers,heat pumps,and absorption chillers to satisfy a given demand of electricity and heat.Heat,recovered from the units at two temperature levels,can be stored in hot tanks.Units can have one operative variable(e.g.,simple cycle gas turbines,referred to as “one-degree of-freedom units)or two operative variables(e.g.,gas turbines with post firing,referred to as “two-degrees-of-freedom units),highly nonlinear performance curves describing their off-design behavior,and limitations or penalizations which affect their start-up/shut-down operations.To exploit the effectiveness of modern Mixed Integer Linear Program(MILP)solvers,the resulting Mixed Integer Non Linear Programming(MINLP)model is converted into a MILP one by linearizing all performance curves and constraints according to state-of-the-art techniques.The model,which is written in the AMPL algebraic modeling language and solved with the IBM ILOG CPLEX Optimizer,has been tested on a real plant case.The results have been analyzed from the point of view of simulation capabilities,robustness,quality of the optimization results and computing time.
Combined Cooling Heat and Power (CCHP) Planning Optimization MILP Off-design Heat Storage
Aldo Bischi Leonardo Taccari Emanuele Martelli Edoardo Amaldi Giampaolo Manzolini Paolo Silva Stefano Campanari Ennio Macchi
Dipartimento di Energia,Politecnico di Milano,Milano,Italy Dipartimento di Elettronica e Informazione,Politecnico di Milano,Milano,Italy
国际会议
桂林
英文
1-12
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）