Research on automatic configuration technology of secondary equipment file in smart substation

The generation of intelligent substation SCD file is complicated, and these processes need manual configuration, which is easy to cause errors due to human factors. In response to these problems, This paper presents an automatic configuration technology of plug and play file for secondary equipment of intelligent substation. Firstly, the mechanism of automatic generation and distribution of secondary device configuration files in smart substation was explained, and the P2P information interaction architecture was expounded from the secondary PNP object of smart substation, the PNP registration management of smart substation and the communication interface of smart substation PNP object. Secondly, the configuration file automatic configuration logic is designed, and the SCD configuration file automatic configuration, the interval layer secondary device automatic configuration and the process layer secondary device automatic configuration are explained respectively. Finally, the plug-and-play standard interface model based on IEC61850 is proposed, and various interfaces are explained respectively.