Application of intelligent shop assistant system in smart substation

With the advancement of smart grid construction, smart substations have become an important component, and the reliable operation of smart substations cannot be separated from the support of intelligent auxiliary systems. Taking the Jinhua Electric Power Bureau's 500kV Zhifu transformer intelligent auxiliary system as an example, the article focuses on the system components, functions, and characteristics in the practical application of substations. It is expected that the substation auxiliary system will be intelligent and lay the foundation for the popularization of smart substations.

With the advancement of smart grid construction, substations are the basic nodes in the power grid. Smart substations are an indispensable part of smart grids and an important part of smart grids. State Grid Corporation of China unanimously adhered to the three-step implementation of the smart grid development strategy according to research pilots, comprehensive construction, and improvement. From August 2009 to December 2011, the State Grid Corporation of China launched the first batch of nine pilot projects for intelligent substations. Jinhua Electric Power Bureau 500kV Shiba is the only 500kV upgrade substation to be selected. The transformation and transformation of Zhifu's intelligentization mainly include: intelligent and online monitoring of primary equipment, construction of unified information platform, intelligent operation and maintenance, and intelligent transformation of auxiliary systems. The intelligent auxiliary system has become an important supporting part of the smart substation, making the operation and maintenance of the substation more safe and reliable.

Intelligent auxiliary systems At present, many auxiliary sub-systems such as video surveillance, environmental monitoring, safety precautions, fire alarm, and access control are also operated independently. Data is uploaded through different channels, and even each system is equipped with independent management personnel. It is difficult to achieve comprehensive monitoring and centralized management of multiple systems, virtually reducing the efficiency of the system and increasing the management costs of the system. How to maximize the potential of existing auxiliary systems, maximize cost savings, and improve efficiency systems are issues that need to be solved in the construction of smart substations. Intelligent auxiliary systems just solve these problems.

Through the iVMS-8800 intelligent video integrated monitoring system as the core, completed the integration of environmental monitoring system, security system, fire alarm system, access control system, lighting system, air conditioning system, water supply and drainage system, thus forming a complete set Intelligent assistant system.

The intelligent video integrated monitoring system is carried on the power integrated data network and is not an independent system.

Vertically responsible for information exchange with regional platforms, and upload information to the MIS network through the network, regional platform and MIS network users can monitor the station system, real-time understanding of front-end substation operation; video and audio of the station system , Alarm information can be uploaded for the master station and MIS network users to view and call.

It is responsible for the information interaction and behavioral interaction with the unified information platform and the SCADA system horizontally, and meets the new requirements put forward by the intelligent substation construction for auxiliary systems. The characteristics of smart substations are "digitalization of total station information, networking of communication platforms, and standardization of information sharing". That is, the network communication system is based on the IEC 61850 standard. Currently, the unified information platform and SCADA system are deployed in the information area I, and the intelligent auxiliary system is deployed in the information III. Area, using 61850-MMS to communicate through isolation devices.