Generation expansion planning considering system operation

This paper presents a generation expansion planning analysis system which is composed of the following four models: 1) Detailed simulation model of generation system planning. 2) Simplified simulation model of generation system planning. 3) Linear programming model considering daily operation of generation system in a simplified way. This model can deal with the uncertainties of assumption. 4) Production costing model using annual load duration curve. The following conclusions are obtained from the examination of the above models: (1) Simplified production simulation model gives valid results for economic comparison of generation mix. (2) Both generation cost of the year under study and cumulative generation cost over the planning horizon give the almost same results for economic comparison of generation mix, and the former is sufficiently valid for the simplified study. Above results reveals the suitable field application of each model as follows: (1) The optimization model, that simulates the system operation as simple as possible, is suitable for the comprehensive study. It is vital for this model that it can consider the uncertainties of the assumption. (2) Simulation model, that simulates system operation in detail, is suitable for the study of system operation. (author)