一种智能变电站备自投功能的改进设计方案

An Improved Design Scheme for Automatic Throw- in Function of Emergency Power Supply in Smart Substation

传统上变电站备自投功能大多采用的独立备自投装置完成,通过相关间隔的断路器、隔离开关位置、电流、电压等信息传给备自投装置,由备自投装置完成运行方式的识别和动作逻辑判别,最终完成断路器的分合闸。具体提出智能变电站备自投功能的改进设计方案。此方案能够直接应用到以IEC 61850标准为基础建立起来的智能化变电站中,可使备自投功能的实现更加灵活,在工程实践中具有较大的实用价值。

An independent automatic throw- in equipment of emergency power supply is generally adopted to realize automatic throw- in function by the traditional substation. By means of sampling the information of the breaker, the disconnected switch, AC current and voltage and so on, the automatic throw - in equipment achieves the recognition of operating mode and the discrimination of action logic, and drives the breakers tripping. An improved design scheme of automatic throw - in function for smart substation is put forward. The proposed scheme can be directly applied to the smart substation established on the basis of IEC 61850, which can make the automatic throw -in function more flexible. And this scheme has the practical value for engineering application.