考虑经济性的可再生能源并网研究

Renewable Energy Grid Connection Considering the Economy

随着全社会对环境保护要求的不断提高,可再生能源得到了快速发展,在大规模利用可再生能源的同时,其经济运行是一个值得关注的问题。在传统电力网络方程中引入了支路电流,建立了支路电流和节点电压作为变量的电力网络方程组。在此基础上,通过支路电流建立了可再生能源并网的网络损耗最小优化模型,模型的目标是求解出经济性最优的并网可再生能源发电量。仿真计算表明模型是有效的,同时为电力部门安排可再生能源的运行方式提供了依据。

With the continuous improvement of environmental protection requirements in the whole society,renewable energy has been developed rapidly.In the large-scale utilization of renewable energy at the same time,its economic operation is a matter of concern. In this paper,the branch current was introduced in the traditional power network equations,and the power network equations of the branch current and the node voltage were established. Based on this,a minimum optimization model of network loss of renewable energy was alsoestablished by branch current. The goal of this model was to solve the economically optimal grid-connected renewable energy power generation. The simulation results show that the model is effective and providesthe basis for the electric power department to arrange the operation mode of renewable energy.