基于通信地址的智能变电站变压器保护新配置方法研究

Research on a new configuration method for transformer protection in intelligent substations based on communication addresses

目前,智能变电站虚端子配置通常采用人工手配方式,智能化水平有待提高。为此,提出智能变电站变压器保护新配置的解决方法。针对智能变电站变压器保护配置实现方式,探讨了智能变电站智能设备之间通信配置和报文发布订阅自动识别原理,指出了智能变电站变压器保护新配置趋势及原因。根据220 kV变压器间隔信息流,深入分析变压器保护新配置实现方法,通信链路参数设置方法,发布数据集条目数量和描述规范化定义,以及后期扩建变压器中压侧时变压器保护相关参数修改及验证问题。通过变压器中压侧间隔模型解析,证明基于通信地址的智能变电站变压器保护新配置方法的可行性。

At present,the configuration of virtual terminals in intelligent substations typically relies on manual matching methods,which suggests a need for improving the level of automation.Therefore,a new approach to configuring transformer protection in intelligent substations is proposed.This study discusses the method for implementing transformer protection configuration in intelligent substations,exploring communication configurations and the principles of automatic identification for message publishing and subscription among intelligent devices.It also outlines the trend and rationale for new configurations of transformer protection in intelligent substations.Based on the interval information flow for 220 kV transformers,the paper deeply analyzes the implementation method of new transformer protection configurations,communication link parameter settings,the number of dataset entries,and standardized definition of descriptions.Moreover,it examines the modification and verification of related transformer protection parameters when expanding the medium-voltage side of transformers.Through the analysis of the medium-voltage side interval model of transformers,the feasibility of the new communication address-based configuration method for transformer protection in intelligent substations is proved.