Application of Internet of Things technology in smart grid

Ren Yunye (Ankerui Electric Co.
, Ltd.
) Abstract: Power Internet of Things is the application of the Internet of Things in the smart grid, smart city, smart grid, etc.
are the Internet of Things technology, artificial intelligence technology, big data technology and other advanced technologies are integrated, through the effective integration of communication infrastructure resources and power system infrastructure resources, improve the level of power system informatization, intelligent efficiency of the distribution system and power supply capacity, improve the utilization efficiency of the existing infrastructure of the power system, for the power grid generation, transmission, transformation, distribution, Provide important technical support
for electricity use and other links.

Keywords: power Internet of Things; Smart Grid; Power System Introduction The distribution network occupies an important position in the power energy system, is the key link to achieve depth perception, improve user experience, optimize operations, and is also the cornerstone and key to
the construction of power Internet of Things.

Its important position in the power system determines the importance of further optimizing the distribution network system; At the same time, in recent years, the rise of the concept of intelligent power distribution and the Internet of Things, more and more new concepts and new technologies related to intelligent power distribution have been continuously proposed, including the advent
of power Internet of Things technology.

As a new technology of high strategic significance, the power Internet of Things is highly valued, and China puts forward
the power Internet of Things technology as one of the five key tasks in the "14th Five-Year Plan" Information and Communication Industry Development Plan.

One.
Overview of the basic characteristics of the power Internet of Things (1) Perceptual is one of the basic and important features of the power Internet of Things, through radio frequency identification, sensors, two-dimensional codes and other perception, capture, measurement technology to collect
real-time information on the object.

The reuse of relevant equipment for timely feedback enables us to grasp the operation of each process in the distribution network in real time, avoid system disturbances caused by other interference factors, and reduce the probability
of sudden failure of the distribution system.

(2) Intelligent: The object is first connected to the information network, and then the real-time synchronization and sharing
of information is reliably carried out with the help of various communication networks.

In the process of classifying and filtering the data through the platform technology, the useful information data is displayed through graphical and tabular display, which is convenient for O&M personnel to query and fault analysis and processing
.

(3) Strong interconnection The support of wireless technology (4G, 5G, LORA, NB) enables each energy client to exchange information and data with the distribution network system in order to adjust
the operation of the distribution network system in a timely manner.

The ADW series of Internet of Things communication power monitoring equipment launched by Ankerui is in line with this feature, through a variety of upload methods (4G, NB, LORA, etc.
) to upload the collected data to the cloud platform in real time, in combination with the data analysis function of the platform, to give users detailed, concise and clear data reports
.

This is also the manifestation of the Internet of Everything and the smart grid
.

Two.
The application content of the power Internet of Things in the smart grid (1) Monitoring of the distribution network There are many processes and links in the distribution network, and any minor problems may lead to operational failures, so the online monitoring of the status of power equipment is a key step
in the intelligentization of the distribution network.

For the existing 10KV substation equipment of the power system to install the status monitoring system, the Internet of Things technology is used to realize the online monitoring and fault analysis of the high-voltage system, and then the maintenance plan is formulated by the manual according to the system diagnosis results, so that the hidden dangers can be eliminated in time before the equipment fails, unnecessary economic losses can be avoided, maintenance costs are reduced, and the economy and stability of equipment operation are improved.
Through the cloud platform, we can intuitively understand the operation of the equipment by combining the curve chart tree diagram
, etc.

(2) Intelligent electricity management Intelligent electricity management uses Internet of Things technology to help realize two-way interactive service, electricity consumption, information collection, home intelligence, home energy efficiency management, distributed power access and charging pile technology, to achieve two-way interaction between users and the power grid, improve power supply reliability and power efficiency, and provide technical support
for energy conservation and emission reduction.

By setting sensors and radio frequency identification devices in electric vehicles, batteries and charging facilities, the operating status, battery usage status, charging facility status and current energy supply status of electric vehicles can be sensed in real time, and the comprehensive monitoring and analysis of electric vehicles and charging facilities can be realized to ensure the stable, economical and efficient operation
of electric vehicles.

The Internet of Things technology helps to realize the intelligentization of the home, through the embedded intelligent acquisition module and communication module in a variety of household appliances, the intelligence and networking of household appliances can be realized, and the monitoring, analysis and control
of the operating state of household appliances can be completed.

The cloud platform developed by Acquaray for "source network charge storage and charging" is not only a concrete manifestation
of intelligent power management.

Three.
Overview of the power Internet of Things acquisition terminal The acquisition terminal is the sensing layer device, which collects real-time information on the object through RF identification, sensors, two-dimensional codes and other perception, capture and measurement technologies, such as: electric energy meter, water meter, gas meter, temperature sensor, etc
.

The more widely used in the distribution network system is the smart meter
.

Different from the traditional energy meter based on the electrical parameter monitoring function, the advantages of smart meters are mainly reflected in the powerful interconnection function and intelligent monitoring, here to Ankeri launched the ADW300 Internet of Things online monitoring instrument as an example to illustrate the advantages of
smart meters compared to traditional meters.

Powerful interconnection function: Compared with the local collection method of traditional meters, through the combination with the Internet of Things technology, the current terminal monitoring device can not only support RS-485 communication, but also support the use of GPRS, WiFi, NB-IoT and other communication technologies in the network communication layer, and at the same time, most of the common protocols on the market are also covered in the adaptation of communication protocols
.

Intelligent monitoring: mainly through additional functions to assist the intelligent interaction of terminal acquisition equipment, such as: support for switching input and output, can be combined with the specific field to achieve the protection function of opening and closing; Support multi-channel temperature measurement and leakage monitoring to prevent safety hazards caused by faults and aging caused by excessive temperature; Alarm upload function, support the alarm setting of various electrical parameters, timely upload alarm data, and then timely notify the user through the platform SMS early warning and other measures to the user side for on-site fault processing
.

From the perspective of national policy level planning, it is imperative to build a power Internet before 2025, in recent years, communication operators have done a lot of work in the application of the Internet of Things, and the power system has also done a lot of work for the application of the Internet of Things in the smart distribution network, and the state is also cooperating with domestic and foreign smart distribution networks and institutions on the Internet of Things to carry out some in-depth research work, and the investment in smart grids around the world is also growing.
The number of tenders is also on the rise
.

China Southern Power Grid has also invested hundreds of billions of yuan in the past 2 years to carry out the intelligent construction
of the power grid.

On the other hand, the growth of power grid demand has also prompted the power grid supply side to be automated and intelligently upgraded, thus creating a massive power Internet of Things market
.

In recent years, Ankerui has also cooperated with power companies in many places, providing terminal equipment, cloud platforms and other services, and constantly improving product functions according to the needs of users, and fully participating in the construction of smart grids
under the power Internet of Things.

Summary Smart distribution network, Internet of Things technology research and application research as a future trend will have more and more enterprises to participate in it, to achieve a major breakthrough in the application of Internet of Things technology in the application of smart distribution network, to create a complete industrial chain of power Internet of Things chip design, application development, software platform and other complete industrial chain is also imperative, Acquaray launched the microgrid energy efficiency management platform and with Acquaray ADW series of online monitoring instruments can achieve systematic and scientific management of the smart distribution network , to maintain its normal operating state, to provide more stable and safer power energy for residents' lives, and to promote the further development of
power distribution systems in the future.

About the Author Ren Yunye, male, Ankerui Electric Co.
, Ltd.
, R&D engineer, engaged in power Internet of Things related solutions research
.