电网一体化规划信息模型构建与仿真系统研究

Research on Information Model Construction and Simulation System of Grid Integrated Planning

随着智能电网技术的发展,分配和传输系统之间的相互作用显着增加。然而,在传统的电力系统仿真工具中,传输和分配系统是分别建模和分析的。因此,很难详细分析配电系统对输电系统及其相互作用的影响。一体化规划建模对于集成传输和分配(T&D)系统分析性能有较大提升,该建模方法可以表示T&D系统之间和传输系统内边界的不平衡条件。通过迭代求解传输系统的三序列功率流和每个分布系统的三相功率流来解决集成的T&D功率流。

With the development of smart grid technology,the interaction between distribution and transmission systems increase significantly.However,in traditional power system simulation tools,transmission and distribution systems are separately modeled and analyzed.Therefore,it is difficult to analyze in detail the impact of the distribution system on the transmission system and its interaction.Integrated planning modeling provides a significant improvement in the performance of integrated transmission and distribution(T&D)systems,which can represent unbalanced conditions between T&D systems and within the transmission system.The integrated T&D power flow is solved by iteratively solving the three-sequence power flow of the transmission system and the three-phase power flow of each distribution system.