IEC 61970-301:2020+AMD1:2022规定了公共信息模型(CIM)，这是一种抽象模型，表示电力企业中通常涉及公用事业运营的所有主要对象。通过提供将电力系统资源表示为对象类和属性以及它们的关系的标准方式，CIM促进了由不同供应商独立开发的网络应用的集成，在运行独立开发的网络应用的整个系统之间，或者在运行网络应用的系统与涉及电力系统操作的不同方面(例如发电或配电管理)的其他系统之间的集成。SCADA的建模达到了支持电力系统仿真和控制中心间通信所需的程度。CIM通过定义基于CIM的公共语言（即语义）来促进集成，以使这些应用程序或系统能够访问公共数据并交换信息，而与这些信息在内部如何表示无关。 此版本反映了型号内容版本“IEC61970CIM17v38”，日期为“2020-01-21”，与上一版本相比包括以下重大技术变更: a)增加了馈线建模； b)增加了ICCP配置建模； c)纠正在互操作性测试或标准使用中发现的问题； d)改进文件； e)用自定义扩展更新了附件A； f)添加了附件B PST变压器建模示例； g)增加了附录C HVDC使用案例。

IEC 61970-301:2020+AMD1:2022 lays down the common information model (CIM), which is an abstract model that represents all the major objects in an electric utility enterprise typically involved in utility operations. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of network applications developed independently by different vendors, between entire systems running network applications developed independently, or between a system running network applications and other systems concerned with different aspects of power system operations, such as generation or distribution management. SCADA is modeled to the extent necessary to support power system simulation and inter-control centre communication. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally.
This edition reflects the model content version ‘IEC61970CIM17v38’, dated ‘2020-01-21’, and includes the following significant technical changes with respect to the previous edition:
a) Added Feeder modelling;
b) Added ICCP configuration modelling;
c) Correction of issues found in interoperability testing or use of the standard;
d) Improved documentation;
e) Updated Annex A with custom extensions;
f) Added Annex B Examples of PST transformer modelling;
g) Added Annex C HVDC use cases.