Substation operation and maintenance gateway

Description :

　　In addition to mastering o& M management technologies such as virtualization software, hardware, and operating systems, O& M personnel need to be able to flexibly use one or two scripting languages. Due to the large number of devices in cloud platform o& M, automatic O& M tools are indispensable. However, if the automatic O& M tools cannot meet all maintenance requirements or a special o& M work, technical personnel can freely use script language to perform mass maintenance work will be a good supplement.

　　Substation operation and maintenance gateway

　　1、 Introduction to Substation Operation and Maintenance Cloud Platform

　　According to the statistics of State Grid Corporation of China, there are over 2 million industrial and commercial users with a power supply voltage level of 10kV and above. The property rights of such "user side substations" belong to the power users (industrial and commercial enterprises, residential communities, schools, etc.). Although there are many of them, the daily operation and maintenance work is relatively traditional, and there are generally the following pain points:

　　High labor costs: manual inspections, paper records, telephone communication, lack of intelligent means

　　Low work efficiency: low video inspection rate, inability to locate inspection tasks, non-standard inspection process, lack of closed-loop tracking of inspection defects;

　　Safety hazards: Some electricity consuming units face difficulties such as lack of maintenance electricians, inability to promptly identify electrical hazards, and difficulty in inspecting hidden engineering hazards; Long repair time: There are many types of substation equipment, which are also scattered in distribution, making it difficult to identify and locate fault information in real time. Users need to notify and confirm on-site;

　　Lack of analysis in running big data: Some users do not have a data aggregation and analysis platform, and even have not installed power instruments, resulting in operation and maintenance personnel not understanding the on-site power parameter information and unable to determine whether the power system is operating normally.

　　Function:

　　With the gradual promotion and implementation of the national grid reform policy, the ordinary offline operation and maintenance mode has been unable to meet the market demand, and it is urgent to support the intelligent online operation and maintenance management and service platform. The operation and maintenance cloud platform of Ankeri substation (AcrelCloud-1000) provides supporting online operation and maintenance services for power operation and maintenance companies based on market demand feedback, using the Internet and big data technology. This platform serves as a link between operation and maintenance units and power consumption enterprises, monitoring the operation status and power data of user distribution systems, providing customers with better operation and maintenance services. The platform provides system overview, power data monitoring, power quality analysis, power consumption statistical analysis, daily/monthly/annual power statistics reports, abnormal warning, accident alarm and event recording, operating environment monitoring, operation and maintenance inspection dispatch, and supports multi platform and multi terminal data access.

　　Application location:

　　2、 Structure of Substation Operation and Maintenance Cloud Platform

　　3、 Main functions of the substation operation and maintenance cloud platform

　　Comprehensive Dashboard

　　Through the comprehensive dashboard, the overall operation of the platform can be understood, and multiple templates are pre-set for users to choose from. It is the window and centralized control center for the platform to display to the outside world

　　Power monitoring

　　Real time monitoring of substation electricity usage through vector distribution diagrams, with screen response to remote signal displacement and remote sensing limit alarm. Clicking on a distribution circuit allows for the query of various detailed electricity parameters, including real-time values, small values, values, and average values;

　　environmental monitoring

　　Real time monitoring of the operating environment of the substation, including environmental temperature and humidity, water immersion, door magnets, smoke detectors, cable temperature, etc., and can achieve video monitoring and video playback;

　　Fault Alarm

　　Configurable remote signal displacement alarm (water immersion, smoke, door magnetic, switch tripping, etc.), telemetry limit exceeding alarm (overvoltage, undervoltage, overcurrent, cable temperature too high, winding temperature too high, etc.), operation alarm (instrument offline, gateway offline, etc.), and the received alarm can be pushed through SMS and web pages. The upper and lower limits of the alarm can be flexibly configured according to the on-site situation;

　　energy efficiency analysis

　　Collect hourly, daily, monthly, and annual electricity consumption data based on distribution circuits, regions, departments, and sub items (lighting, air conditioning, power, etc.), and conduct month on month analysis; Calculate the electricity consumption and amount of each distribution circuit according to peak, off peak, flat, and valley; Monthly statistics on the demand and occurrence value of each circuit, providing a basis for demand declaration;

　　Equipment File

　　The system can configure equipment information such as transformers, incoming cabinets, outgoing cabinets, metering cabinets, high-voltage cables, etc. in each substation, record the manufacturer, model, commissioning date, etc. of the equipment, and can use reports to count the equipment that needs maintenance or replacement in the near future;

　　Inspect and eliminate defects

　　Develop an inspection plan through the system and distribute it to the inspectors' mobile phones. The inspectors will perform inspection tasks at the substation site according to the inspection requirements. If defects are found during the inspection process, they can record the defects and generate a defect elimination task in the system;

　　User Report

　　The system automatically summarizes the operational data of the substation for one month, conducts statistical analysis on transformer load, distribution circuit electricity consumption, power factor, alarm events, etc., and lists various defects and their handling situations discovered during the inspection period;

　　4、 Substation operation and maintenance cloud platform configuration

　　On site hardware configuration

　　5、 Business model of substation operation and maintenance cloud platform

　　1) Data hosting method

　　Ankrui guides users to complete the installation and debugging of intelligent instruments, current transformers, residual current transformers, temperature sensors, door magnets, network cameras, wireless modules, etc. Users upload data to the Ankrui substation operation and maintenance cloud platform, entrust Ankrui to manage, and charge software basic fees and hosting fees according to regulations/agreements.

　　2) User built platform

　　Support platform self construction

　　Physical resources are provided by software

　　Virtualization technology has become a key technology in cloud computing. As shown in Figure 1, a virtualization layer is introduced to abstract the physical resources at the lower layer and provide them to the upper layer for use. In essence, the virtualization layer is a software module between the hardware and the VM operating system. It abstracts virtual software or hardware interfaces by providing an interface that is consistent with the operating environment of the vm in the upper layer, so that the upper layer software can directly run on the virtual environment. Virtualization technology abstracts hardware resources through space segmentation, time sharing and simulation technology to provide services for the upper software. Platform architecture diagram because virtualization technology is introduced in the cloud platform, to provide users with services of the virtual machine is based on virtualization platform, although from a user's point of view, the virtual machine has an independent operating system and hardware (CPU, memory, disk space, etc.), but these are simulated through the virtualization layer, abstract, They are not independent hardware resources in traditional systems.

　　Substation operation and maintenance gateway

AfterSalesService :

• Substation operation and maintenance gateway Substation operation and maintenance