Table1_PV grid-connected information interaction methods based on public information modeling.docx

The grid integration of large-scale photovoltaic and other distributed energy sources is an effective solution for addressing power supply shortages and environmental pollution. However, the widespread adoption of photovoltaics and grid integration presents various technological and management challenges. To fulfill the demands of grid management and ensure safe operations, the exchange of information between different terminals is continuously escalating. Use of diverse communication standards creates the problem of “information islands” among terminals. Hence, a standardized information model is crucial for describing the photovoltaic grid integration business and enhancing the efficiency of related software platform research and development. This study extends the IEC 61970/61968 standards and presents a common information model for the integration of photovoltaic systems into the grid. Initially, the operational procedures for integrating photovoltaic systems into the grid are analyzed, and UML modeling tools are employed for business modeling purposes. Subsequently, leveraging the outcomes of the business modeling and the content of the IEC 61970/61968 standards, the development of the common information model is executed. Lastly, causal analysis is conducted along with the modeling of communication standard extensions specifically targeted for the integration of photovoltaic systems into the grid, culminating in the finalization of the construction of the common information model for photovoltaic grid connection.

大规模光伏及其他分布式能源的电网并网，是解决电力供应短缺与环境污染问题的有效途径。然而，光伏的大规模普及与电网并网应用也带来了诸多技术与管理层面的挑战。为满足电网管理需求、保障安全稳定运行，不同终端间的信息交互需求持续攀升；而通信标准的多样化则造成了终端间的"信息孤岛"问题。因此，构建标准化信息模型对于规范描述光伏并网业务、提升相关软件平台研发效率至关重要。本研究对IEC 61970/61968标准进行扩展，提出了一套适用于光伏系统并网的通用信息模型。首先，本研究分析了光伏系统并网的业务流程，并采用统一建模语言（Unified Modeling Language，UML）建模工具开展业务建模工作。随后，基于业务建模成果与IEC 61970/61968标准内容，完成通用信息模型的开发。最后，本研究开展因果分析，并针对光伏并网场景构建通信标准扩展模型，最终完成光伏并网通用信息模型的构建。