Solution for Comprehensive Auxiliary System of Intelligent Substation

Project Overview

This plan fully adopts high-definition, intelligent, IoT, infrared thermal imaging3GApplication technology, under the design principles of "standardization, integration, and intelligence", is integrated with the production system to achieve visual operation management, suitable for the application scenario of provincial power grid companies in managing substations throughout the province.

Background and Challenges

As the core link of the power grid, substations are responsible for the high and low voltage transformation and power supply tasks in their respective areas, making safe operation particularly important. During the 12th Five Year Plan period, intelligent substations entered a period of comprehensive construction. As a support system to ensure the operation of substations, comprehensive auxiliary systems were also built in large quantities, making intelligent substations stride towards the era of comprehensive perception.

The main problems faced by the comprehensive auxiliary system at present are:

Difficulty in comprehensive monitoring - auxiliary subsystems operate independently, making it difficult to achieve comprehensive monitoring and centralized management of multiple systems, which invisibly reduces the efficiency of the system and increases its management costs;

Lack of business integration - "remote viewing" mostly only realizes the functions of video review and historical tracing, and the video surveillance system is still independent of the production system and has not been truly integrated into the daily management of substations;

Multiple human interventions - Abnormal situations in video surveillance points require active detection by humans. The linkage mechanism between multiple systems has gradually been established, but most of them are limited to switch linkage rather than protocol linkage;

Difficulty in operation and maintenance - After the system is connected to the internet, facing a large number of video surveillance devices, the workload of operation and maintenance is huge and the detection difficulty is high, often resulting in delayed fault handling, which greatly reduces the effectiveness of the video surveillance system.

Solution

system architecture

The intelligent substation comprehensive auxiliary system solution is mainly applied to the construction and renovation of intelligent substation comprehensive auxiliary systems in various provincial power grid companies.

The intelligent substation comprehensive auxiliary system is a large-scale networked monitoring system that integrates hardware, software, and network, used in the energy industryiVMS-8800Platform software as the core, realizing multi-level networking and cross regional monitoring, in the control center/The operation and maintenance center can centrally monitor and manage the station end system, safeguarding the smart grid.

The system architecture diagram is as follows:

The comprehensive auxiliary system of the intelligent substation fully adopts high-definition, intelligent, Internet of Things, infrared thermal imaging3GUnder the guidance of the design principles of "standardization, integration, and intelligence", the application technology adopts standardized industry products to achieve the following functions:

High definition video surveillance - fully integrated720PHigh definition cameras at or above the required level can improve video quality and security, meet the needs of detailed monitoring (equipment status, instrument readings, facial features), and support high-definition video storage;
Intelligent analysis and recognition - device status analysis, behavior analysis, license plate recognition;

Integration of auxiliary systems - realizing video surveillance, environmental monitoring, security guards, fire alarms, access controlSF6The integration of subsystems such as leak alarm and intelligent control, and the linkage of each subsystem according to the contingency plan;

Visual operation management - can configure center video patrol plans as needed, and can also be integrated withSCADASystem communication, when performing switching operations or tripping accidents,SCADASend "remote control" or "remote signaling" signals to the video surveillance system, associated with the corresponding camera preset positions;

Three dimensional supervision mode - realizing vertical supervision at the station, city, and provincial levels, with fixed network adoptionC/STheB/SAccess is conducted through methods, and mobile networks are regulated through handheld terminals such as mobile phones and tablets;

System operation and maintenance management——ITInfrastructure management, video quality diagnosis, bandwidth optimization and control, asset management, log management.

System Features

1)Integrate and integrate the auxiliary subsystems within the station, achieve comprehensive monitoring of the auxiliary subsystems, and implement intelligent contingency plans both within and outside the system;

2)Support throughDL/T860The integration of protocol and information platform enables the upload of panoramic data from auxiliary systems and the reception of control signals, achieving business integration with the production system;

3)When the substation performs switching operations, it can be linked with video preset positions, truly realizing visual operation management.