源网荷不对称的配电网全三相仿真方法

Three-phase Operation Simulation Method of Intelligent Distribution Network with Source-Grid-Load Asymmetry

智能配电网日趋灵活、可靠、高效和多变,源网荷三重强不对称性日趋凸显,传统经验型调度无法实现对智能配电网运行状态和发展趋势全面管控。文中首先提出了源网荷不对称下的配电网全三相运行仿真技术的总体构架;其次在构建智能配电网关键元件全三相模型的基础上,依托全三相潮流计算,进行全三相节点电压短路计算和暂/稳态仿真技术研究;最后开发基于OPEN3200系统的运行仿真平台,并在南京河西新城示范区成功应用,验证了所提方法的合理性、有效性。

The intelligent distribution network is becoming more and more flexible, reliable, efficient and multivariate. As the strong source-grid-load triple asymmetry in the distribution network is increasingly prominent, the traditional empirical dispatching method can＇t fully control the operation state and development trend of distribution network. In this paper, the overall framework of three phase operation simulation technology of the intelligent distribution network with the source-grid-load asymmetry is put forward. Secondly, the steady and transient three-phase models of key components are established and the three-phase power flow is calculated. On these basis, the three-phrase node voltage short-circuit calculation and steady/transient simulation technologies are thoroughly studied. Finally, an operation simulation platform is developed based on the OPEN3200, and successfully applied to Nanjing Hexi CBD which verifies the rationality and the effectiveness of the proposed methods.