Effect of introducing batteries into the grid on generation costs and CO_2 emissions considering wind power uncertainty

摘要

The large scale integration of intermittent renewable resources like wind power generation into the grid presents major challenges in power system planning and operations because their time-varying nature. In order to address this issue, the behavior of power plants and effectiveness of the way of dealing the imbalance between power generation and demand, e.g. adding batteries, should be analyzed with consideration of wind power uncertainty. The model developed in this research adopts Monte Carlo simulation approach to deal with wind power uncertainty and ARMA model is used to generate a pool of scenario. Moreover, this model take into account plural operational states of thermal power plants. The results of simulation shows the increase of generations costs and CO_2 emissions due to parallel operation of thermal power plants if we consider the uncertainty of wind power generation. Furthermore, the effect of introducing batteries on CO_2 emission reduction was newly identified.