Abstract Power system, natural gas system, and thermal system are traditionally managed by different types of companies, resulting in information islands among different systems. In order to break the information islands phenomenon and realize the unified management of electric-gas-heat integrated energy system, this paper thoroughly analyses the composition and characteristics of the electricity-gas-heat integrated energy system and extends the common information model by using object-oriented modeling concept based on the IEC 61970 to meet the needs of integrated energy systems, such as multi-energy flow calculation, optimal scheduling, and operational control. The complete extended model of natural gas system, thermal system, coupling links and multi-energy storage systems is built. In addition, the attributes of key classes in the electricity-gas-heat integrated energy system are described, such as the classes of natural gas source, natural gas transporting unit, natural gas pipeline, natural gas load, motor-driven compressor, power-to-gas unit, power-to-heat unit, natural gas storage system, thermal storage system and hydrogen storage system. The extended common information model of electricity-gas-heat integrated energy system is built under the Rational Rose platform and an example verification is carried out to generate XML file and partial code of header file and source file in order to test the rationality of the extended common information model.

中文翻译：

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基于IEC 61970标准的电-气-热综合能源系统通用信息模型扩展

摘要 电力系统、天然气系统和热力系统传统上由不同类型的公司管理，导致不同系统之间存在信息孤岛。为打破信息孤岛现象，实现电-气-热一体化能源系统的统一管理，本文深入分析了电-气-热一体化能源系统的组成和特点，利用对象扩展了通用信息模型。基于IEC 61970的面向建模理念，满足综合能源系统的多能流计算、优化调度、运行控制等需求。建立了天然气系统、热力系统、耦合环节和多储能系统的完整扩展模型。此外，描述了电-气-热一体化能源系统中关键类的属性，如天然气源类、天然气输送单元类、天然气管道类、天然气负荷类、电动压缩机类、电转气类机组、电热机组、天然气储存系统、储热系统和储氢系统。在Rational Rose平台下建立了电-气-热一体化能源系统扩展公共信息模型，并通过实例验证生成XML文件和头文件和源文件的部分代码，以测试扩展的合理性。通用信息模型。电转气装置、电转热装置、天然气储存系统、储热系统和储氢系统。在Rational Rose平台下建立了电-气-热一体化能源系统扩展公共信息模型，并通过实例验证生成XML文件和头文件和源文件的部分代码，以测试扩展的合理性。通用信息模型。电转气装置、电转热装置、天然气储存系统、储热系统和储氢系统。在Rational Rose平台下建立了电-气-热一体化能源系统扩展公共信息模型，并通过实例验证生成XML文件和头文件和源文件的部分代码，以测试扩展的合理性。通用信息模型。