Accuray Energy IoT platform helps the intelligent transformation of power grid infrastructure and the construction of smart microgrids

Ren Yunye Ankrui Electric Co.
, Ltd.
201801 Abstract: After the "accelerating the construction of digital China" proposed in the 13th Five-Year Plan, the 14th Five-Year Plan proposed "the Internet-Internet of Things online and offline integration to change the lifestyle"
.
IoT and smart devices are already improving performance metrics in major factories around the world and increasing productivity levels by 40-60%.

China Commercial Industry Research Institute predicts that by the 14th Five-Year Plan period, China's Internet of Things industry will still maintain rapid growth, with an average annual compound growth rate of about 23%-26%.

The Acrel-EIoT energy IoT platform helps the intelligent transformation of power grid infrastructure and the construction of smart microgrids, deploys typical application systems such as regional energy management, intelligent metering systems, and integrated energy services, builds an energy data intercommunication platform, and promotes the construction of a clean, low-carbon, reliable and practical energy system
。 Keywords: Energy Internet of Things; smart microgrids; Energy Management I.
Introduction The "14th Five-Year Plan" period is a critical period for the construction and development of new infrastructure of the Internet of Things, in order to thoroughly implement the decision and deployment of the State Council and systematically plan the construction of new infrastructure of the Internet of Things in the next three years, the Ministry of Industry and Information Technology and other 8 departments jointly issued the "Three-year Action Plan for the Construction of New Infrastructure of the Internet of Things (2021-2023)"
.
The Acrel-EIoT energy IoT platform accelerates the intelligent transformation of power grid infrastructure and the construction of smart microgrids, and deploys typical application systems such as regional energy management, intelligent metering systems
, and integrated energy services.
Combined with the deployment of 5G and other communication facilities, build an energy data exchange platform to promote the construction of a clean, low-carbon, reliable and practical modern energy system
.
Second, the system structure The energy Internet of Things takes the energy flow direction of energy supply, energy management, equipment management and energy consumption analysis as the main line, connects the energy production and processing, distribution and transmission, consumption and energy conservation in series, combines the interconnection of people and things, and forms an energy Internet of Things ecosystem with Accuray products as the medium, in which the Internet of Things hardware and energy participants interact
with the platform in the form of data flow and business flow, respectively 。 Acrel-EIoT energy IoT cloud platform adopts a hierarchical distributed structure, which is mainly composed of
three parts: perception layer (terminal acquisition device), network layer (communication management terminal) and platform layer (energy IoT cloud platform).
● Perception layer: all kinds of sensors connected to the network, including multi-function meters, prepaid meters, multi-circuit meters, Internet of Things meters, Internet of Things water meters, battery car charging piles, car charging piles, street lamp controllers, etc
.
● Network layer: intelligent gateway, collect data from the perception layer, convert and store the specifications and upload the data to the energy IoT cloud platform
.
● Platform layer: including application server and data server, which can be implemented on PC or mobile side
.
Third, platform function 3.
1, energy supply 3.
1.
1 power collection function module With the continuous development of information network technology, all kinds of sizes and sizes, equipment types, different numbers of network equipment room is widely distributed in the user's branch location, due to the lack of a monitoring system corresponding to the scale system of the operation network, a large number of unattended computer rooms physical operating environment conditions, equipment operating conditions, personnel activities and fire protection conditions including possible critical situations, It cannot be detected and dealt with in time, so it is difficult to be effectively foreseen, prevented and avoided
.
Therefore, it is necessary
to install an environmental monitoring system in the distribution room to realize the online monitoring of the distribution room environment and ensure the stable operation of the distribution room equipment.
The power collection module can realize the query, analysis, early warning and comprehensive display of various monitoring data to ensure the environmental friendliness
of the distribution room.
In terms of intelligence, it realizes telemetry, remote signaling and remote control of the power supply and distribution monitoring system, and carries out comprehensive detection and unified management of the system; In terms of data resource management, it can display or query the operation of each equipment in the power supply and distribution room (including historical and real-time parameters), and query or print daily, monthly and annual reports according to the actual situation, so as to improve work efficiency and save human resources
.
3.
1.
2 Intelligent operation and maintenance function module According to statistics, the number of industrial and commercial users with high supply and high calculation in the country has reached more than 2 million, and the scale is huge, but most of the daily operation and maintenance work is relatively traditional, and there are generally problems such as
high labor costs, low work efficiency, long fault repair time, and weak risk prevention.
State Grid and many power operation and maintenance companies are seizing this huge market, which is a market of 100 billion
.
The intelligent O&M module adopts multi-function power meter, wireless communication, edge computing gateway and big data analysis technology to collect on-site data through the intelligent gateway and store it locally, and then push the data to the
cloud platform regularly.
The platform can access thousands of user substation data
at the same time.
The data collected by the platform includes electrical parameters and environmental data of the substation, including current, voltage and power, switching status, transformer temperature, ambient temperature and humidity, water immersion, smoke, video, access control and other information, and alarm signals
are sent out through SMS and APP within 10s of abnormal occurrence.
The platform sends O&M tasks to the staff's mobile phones through the mobile APP, and tracks the O&M execution process through GPS to close the loop, improve O&M efficiency, and immediately find operational defects and eliminate defects
。 3.
2、Energy management 3.
2.
1 Safe power function module According to the website data of the Ministry of Emergency Management, during 2016~2018, fires caused by electrical reasons accounted for about 30%~34% of the total, of which a total of 237,000 fires were reported nationwide in 2018, and fires caused by violations of electrical installation and use regulations accounted for 34.
6% of the total, and the proportion of electrical fires was higher
in larger and major fire accidents 。 The State Council, the Fire Department of the Ministry of Public Security and various provinces, municipalities and municipalities directly under the central government have issued documents to promote the use of smart electricity to prevent the occurrence of electrical fires from the source, and the safe electricity management platform has been widely carried out
in nine small places, three-in-one places, pension welfare homes, medical places, schools, financial outlets and other crowded places 。 The safety power management module conducts uninterrupted data tracking and statistical analysis of the main factors of electrical fire (cable temperature, leakage current, load current, voltage), collects on-site data through 2G/NB-IOT/4G, real-time discovery of potential safety hazards in electrical lines and electrical equipment (such as: abnormal cable temperature, overload, overvoltage, undervoltage and leakage, etc.
) and timely early warning through SMS, APP push, automatic voice call, etc.
, effectively preventing the occurrence
of electrical fire 。 The system can display electrical parameters such as leakage current and cable temperature at all monitoring points, support inspection records and dispatch operations, provide safety hazard analysis reports, and evaluate the power safety status
of enterprises in real time.
3.
2.
2 Power Quality Functional Module Power quality issues have attracted more and more attention and have become one of the research hotspots of
power systems.
On the one hand, with the development of science and technology, a variety of complex electrical equipment is widely used, and a large part of these devices are very sensitive to power quality; On the other hand, the continuous expansion of the scale of the power system and the rapid increase in demand for electricity have led to a very unstable
power quality.
The main purpose of power quality analysis is to determine the type and scope of power signal disturbances, and to effectively regulate and compensate
for the corresponding disturbance sources.
Therefore, the key to improving and enhancing power quality lies in timely and accurate acquisition of information
from various disturbance signal sources.
Power quality monitoring, including three unbalances, harmonics, and power factors, shows the three-phase imbalance in the form of vector
diagrams.
When the three imbalances or the power factor is too low, an alarm is generated, and a variety of reminders
such as APP, mobile phone SMS, email, DingTalk, and voice are triggered.
3.
3、Equipment management3.
3.
1 Intelligent lighting function module With the continuous improvement of people's living standards, people's requirements for the working and living environment are getting higher and higher, and the requirements for lighting systems are getting higher and higher
.
Energy consumption in the lighting sector accounts for a considerable proportion of total energy consumption, and saving energy and improving the quality of lighting are top
priorities.
As an important part of electricity consumption, lighting electricity has accounted for about 10% of electricity consumption, and with the rapid development of China's national economy and the continuous improvement of people's living standards, lighting electricity will continue to increase
.
Smart lighting uses IoT technology to continuously monitor
the power consumption status of lighting circuits installed in various areas of the city.
The platform judges the working condition of the lamp by monitoring the current and voltage value of the lighting line, any abnormal working state, the platform can monitor, early warning and alarm, early warning and alarm information is pushed through the mobile phone APP, SMS, voice outbound call, email, WeChat applet, WeChat public account, DingTalk, etc.
, quickly reach the side of the responsible person, remind the operator of the contactor trip, power loss and so on
。 3.
3.
2 Prepaid Hydropower Function Module Prepaid hydropower function can be targeted at commercial complexes, residential areas, office buildings, office buildings, serviced apartments and other properties, schools, factory dormitories logistics management departments, chain supermarkets, large properties distributed financial operations, online payment, headquarters financial connection, etc
.
At present, prepaid hydropower has been successfully used in the above scenarios and has been in stable operation for many years, which is suitable for the property company's prepayment management of water and electricity for tenants in communities, offices and shops, or the school's electricity prepayment and electricity safety management and control system
for student dormitories.
3.
3.
3 Automobile/battery car toll operation function module Electric vehicles have now become widely used as green energy vehicles, along with electric bicyclesThe increasing number has solved the problem of short-distance travel for ordinary people, but the safety and fire accident news related to electric bicycles is also common, and there is a trend of increasing year by year, which has brought great losses to the society and become a hidden danger
to the safety of people's lives and property.
Based on the hazards and characteristics of electric bicycle fires, government departments at all levels have issued documents to regulate the parking and charging behavior of electric bicycle
fires 。 The automobile/battery car toll operation function module continuously collects and monitors the charging pile site and each charging pile connected to the system through the Internet of Things technology, and warns of various faults such as charger overtemperature protection, charger input and output overvoltage, undervoltage, insulation detection faults and a series of faults; After the user scans the QR code through the WeChat mini program and makes a payment, the system initiates a charging request and controls the charging pile corresponding to the QR code to complete the charging process
of the electric vehicle.
The charging pile can be equipped with WIFI module or GPRS module to access the Internet, cooperate with encryption technology and key distribution technology, and directly connect
with the cloud based on TCP/IP data interaction protocol.
This function module provides a package of solutions for charging safety management, asset management and transaction management for automobile/battery car charging pile customers, solving the problems of difficult charging, difficult management and difficult charging, and can be applied to the operation and management of electric bicycle charging places set up in commercial buildings, communities, schools, hospitals and
other places.
3.
4、Energy analysis3.
4.
1 Energy management function module In order to steadily promote the dual carbon goal, in the context of "dual control" of energy consumption intensity and total consumption, enterprises need to consider how to deal with dual control of energy consumption to ensure normal production
.
At present, most enterprises still adopt the mode
of "separate planning, separate design, and independent operation" of various energy supply systems such as electricity, water, gas, cold and heat.
Pervasive metering detects under-equipping; The measurement accuracy of the metering equipment is not high, and the metering data is inaccurate; Low reliability of manual meter reading; Difficulty in effectively monitoring and evaluating the energy efficiency of major energy-consuming equipment; Lack of decision-making data support, unable to provide reliable reference data for energy saving assessment; There is
a lack of an effective enterprise energy efficiency evaluation index system, and it is difficult to implement energy consumption management measures.
The energy management module adopts automation and information technology to realize the automation and scientific management of the whole process from energy data collection, process monitoring, energy medium consumption analysis, energy consumption management, etc.
, so that the whole process of energy management, energy production and use is organically combined, and the use of data processing and analysis technology is used for offline production analysis and management, so as to realize the unified scheduling of the energy system of the whole plant, optimize the balance of energy medium, effectively use energy, improve energy quality and reduce energy consumption.
Achieve the purpose of
energy saving and consumption reduction and improve the overall energy management level.
3.
4.
2 Value-added service function module (1) Industrial configuration The traditional industrial automation configuration application development method requires developers to have the ability to write code, understand the concept and use of related development frameworks, and this development method has a long development cycle and very high
requirements for developers.
At the same time, traditional industrial automation configuration applications are deployed in industrial sites, and the deployment convenience and accessibility are low
.
With the rapid development of the industrial Internet, application requirements are often updated and iterated very quickly, and equipment manufacturers often do not have relevant industrial configuration software development background, making the development and update speed of industrial configuration software very slow, often unable to meet the needs
of rapid business growth.
At the same time, access to industrial configuration software is no longer limited to industrial sites, but also to access from outside industrial sites
.
The industrial configuration module in the Acrel-EIoT energy Internet of Things cloud platform solves the problem of low deployment and accessibility of traditional industrial automation configuration applications, and adjusts the properties, position, size, etc.
of the configuration screen components by using mouse drag and drop in the development tool, and has a rich built-in configuration component library, so that users do not need the ability to write code, do not need the technical background of industrial automation configuration software development, and can also easily develop industrial configuration interfaces, and also support data display, Remote control and other functions
.
(2) 3D visualization 3D visualization technology realizes multi-dimensional visualization through virtual simulation, provides customers with digital services, helps enterprises manage energy economy in both directions, and improves the level of
energy management.
The main functions that can be realized are: real-time synchronization of information in various regions; Gain a holistic view of energy consumption in each region; Visualize and monitor the operating status of the equipment; Intelligent inspection, automatically analyze the equipment operation, power quality, electrical safety, abnormal energy consumption and other conditions on the inspection path, and record the inspection results
.
IV.
Summary At present, the development of the Internet of Things industry still has some problems that need to be continuously promoted and solved: First, there are shortcomings in key core technologies; Second, the industrial ecology is not sound enough; Third, the large-scale application is insufficient; Fourth, the support system is difficult to meet the needs of
industrial development.
To solve the above problems, we must further strengthen policy guidance, gather joint forces, and coordinate to promote the innovation of the Internet of Things technology, the construction of industrial ecology, the application promotion and safety of key areas
.
The Acrel-EIoT energy IoT platform helps the intelligent transformation of power grid infrastructure and the construction of smart microgrids, deploys typical application systems such as regional energy management, intelligent metering systems, and integrated energy services, builds an energy data interconnection platform, and promotes the construction of a clean, low-carbon, reliable and practical modern energy system
。 References[1] Information and Communication Industry Development Plan Internet of Things (2016-2020)[2] Three-year Action Plan for the Construction of New Infrastructure of the Internet of Things (2021-2023) About the author Ren Yunye, male, Jiangsu Ankrui Microgrid Research Institute Co.
, Ltd.
, engaged in the research and development of electrical-related Internet of
Things systems.