On the digital transformation of power grid
1 Introduction
Recently, Xin Baoan, chairman of The State Grid Corporation of China, published a signed article in the second issue of CNICT 2022. China attaches great importance to developing the digital economy and has made a series of important plans for building China into a cyber power and a digital China. As the relationship between the national energy security and state-owned backbone enterprise of the national economy, national grid, always taking digital as promoting the development of the power grid transformation and upgrading, achieve high quality important gripper, formulate the implementation of digital transformation development strategy program, compiled "difference" digital planning, complete a new power system digital technology support system framework design, We will upgrade the power grid to the energy Internet.
Keywords: State Grid digital transformation enterprise microgrid digital platform
2 Ideas of power grid digital transformation
In this article, Chairman Xin Bao 'an puts forward the following requirements for the digital transformation of power grid (Abstract) :
Optimize energy structure with grid digitization
The State Grid utilizes excellent digital technologies to realize holographic sensing and accurate prediction of new energy generation, greatly improve the flexible adjustment capacity of the system, and support the grid connection and rational utilization of a high proportion of new energy.
Support services new energy grid consumption. State Grid has built a large-scale cloud platform for new energy in the world, providing one-stop services for new energy planning and construction, grid connection and consumption, and transaction settlement, and guiding the scientific development and rational distribution of new energy.
Support service source network load storage coordination and interaction. Relying on digital means to aggregate all kinds of adjustable load and energy storage resources, achieve flexible access and control, greatly improve the flexibility and system stability of the power grid, and improve the capacity of new energy connected to the grid.
Support green electricity market transactions. The application of blockchain, cloud computing, mobile Internet and other digital technologies to build a green electricity trading platform, support the development of green electricity trading business of millions of market players and billions of kilowatt-hours, meet the demand of green electricity consumption of market players, and reasonably stimulate the enthusiasm of market players to participate in green electricity trading.
Power grid digitization to meet diverse energy demand
State Grid takes advantage of digital means to improve the level of accurate, convenient and intelligent electricity services and meet the increasingly diversified, personalized and interactive energy demands of customers.
Help meet the needs of electric vehicle service business. A smart Internet of vehicles platform with wide global coverage, multiple charging piles and collaborative development of "vehicle-pile-network" will be built to boost the development of China's electric vehicle industry.
Help meet the demand for smart energy efficiency services. To build a provincial smart energy service platform, focus on industrial enterprises, public buildings and other customers, provide energy analysis, energy efficiency benchmarking, energy-saving improvement scheme recommendation and other services, and apply artificial intelligence algorithm to intelligent order dispatch and automatic failure analysis, so as to reduce operation and maintenance costs for customers.
Power grid digitization serves government and industry governance
State Grid has deeply mined the "rich mine" of power data resources and actively developed a series of power big data products, such as "environmental protection for electricity", "energy efficiency for electricity" and "double carbon for electricity", to strengthen the coordination between government and enterprise and serve government decision-making and industry supervision.
We will actively carry out carbon monitoring. It will undertake the construction of a national carbon emission monitoring service platform, focus on carbon emissions, carbon footprint and other major fields, innovate the application of "double carbon" big data in electricity, and reasonably support accurate carbon measurement and reasonable carbon control.
Actively serving environmental protection management. Deepen cooperation with environmental protection departments, develop smart environmental protection electricity monitoring big data products, reasonably assist in accurate pollution measurement and scientific pollution control.
We will actively serve energy governance. A provincial-level energy big data center will be built to gather water, electricity, coal, gas and other energy data to optimize the allocation and rational utilization of energy resources.
3 AcrelEMS enterprise microgrid energy efficiency management platform
Chairman Xin Bao 'an described the grand blueprint for the digital transformation of State Grid for us. The digital construction of state Grid is to serve the electricity demand of large, small and micro industrial and commercial users as well as agriculture and residents. It can be said that the whole state grid is composed of backbone network and millions of enterprise microgrids. In order to realize the digital transformation of power grid, the digital transformation of enterprise microgrid is an essential and important part.
Akl electric grid has the edge of perception, calculated from a terminal to the digital platform software product system, through the enterprise micro power source, network, loading, storage, filling each key node installation of monitoring, analysis, protection and control device, gateway and upload data gathering through the calculation of high performance edge to AcrelEMS enterprise digital micro network platform. Grid platform based on real-time price, electricity load, power grid dispatch instructions, etc., to adjust the system and remote distributed control strategy, make the enterprise micro grid is reasonable and stable operation, fast response network demand, lower electricity cost and achieve energy interconnection, information interaction, can also upload the data in the superior digital platform, and become part of the whole grid digital platform.
AcrelEMS Indicates the functions of the enterprise microgrid digital platform
3.1 Optimize energy structure with power grid digitization
3.1.1 Support services New energy grid consumption
AcrelEMS enterprise microgrid digital platform supports access to distributed photovoltaic power stations and wind power stations, provides distributed power station operation monitoring and generation day/month/year/cumulative income and emission reduction analysis for enterprises, supports self-use and surplus power access, and provides power quality monitoring and distributed power station stability control protection for enterprises. Fully assist enterprises to absorb distributed new energy.
3.1.2 Coordination and interaction between load and storage of support service source network
AcrelEMS relies on digital means to aggregate all kinds of adjustable load and energy storage resources to achieve flexible access and accurate control, greatly improve the flexibility of power grid and system stability, and improve the capacity of new energy grid-connected consumption.
According to the load characteristics of enterprises, the platform provides control strategies for new energy, energy storage system, charging pile and other controllable loads of enterprises with peak utilization and peak cutting and valley filling, helping enterprises reduce electricity costs and ensuring the smooth operation of backbone power grid.
3.1.3 Support market transactions of green electricity services
AcrelEMS platform supports the connection between government power trading and carbon trading platform, predicts the electricity consumption for enterprises according to the production plan in the case of large fluctuations in electricity price, arranges the electricity consumption plan, and makes use of the overall coordination and control of the storage and charge of source network to provide strategic support for enterprises to quickly respond to the power grid demand response and reduce the electricity cost of enterprises.
3.2.2 Help meet the demand for smart energy efficiency services
AcrelEMS platform assists enterprises to build an enterprise or region-level smart energy service platform, focusing on industrial enterprises, public buildings and other customers, providing energy analysis, energy efficiency benchmarking, energy-saving improvement scheme recommendation and other services to reduce operation and maintenance costs for customers.
Platform acquisition enterprise electricity, water, gas, cold heat and photovoltaic energy consumption data, such as energy storage, such as new energy data, can use the data for analysis, according to the regions, departments, and electricity for each device type and fold the calculation, and annulus compared to provide analysis and comparison of calculating energy output and energy intensity, help users carding energy billing details, timely find PaoMaoDiLou energy waste, Several municipal energy management platforms have been completed.
3.3 Power grid digitization serves government and industry governance
AcrelEMS platform responds to the requirements of power grid and industry, actively develops functions such as "environmental protection for electricity", "energy efficiency for electricity" and "double carbon for electricity", strengthens the coordination between government and enterprise, and serves government decision-making and industry regulation.
3.3.1 Actively carry out carbon monitoring
AcrelEMS platform, based on the collected energy consumption such as electricity, water, gas and gas, combined with the emission reduction of new energy, tailor-made "carbon peak and carbon neutral" action plan and route for users, to help achieve the double carbon requirements of the society.
3.3.2 Actively serve environmental protection management
Based on the characteristics of environmental protection, Ankerui has deepened cooperation with environmental protection departments to develop smart environmental protection electricity monitoring big data products to help accurately measure pollution and treat pollution scientifically. Ankerui environmental protection electricity consumption monitoring platform and catering oil fume monitoring platform now serve jiangsu, Shandong, Shanxi, Shaanxi, Sichuan, Tianjin and other municipal environmental protection electricity consumption monitoring and urban catering oil fume monitoring, to achieve the goal of "clear water, blue sky and pure land" to provide data support.
Environmental monitoring of electricity consumption
City catering fume monitoring
3.3.3 Actively serve energy governance
AcrelEMS platform has been serving the construction of energy management platforms in several prefecture-level cities, assisting local governments and institutions to build regional energy big data centers, gathering water, electricity, coal, gas and other energy data, and serving the optimal allocation and rational utilization of energy resources.
Based on AcrelEMS platform, the municipal energy management platform has access to 8.7 million square meters of building energy data
3.4 AcrelEMS enterprise microgrid digital platform
In addition to the above functions, AcrelEMS platform also micro grid energy management and energy security for the enterprise provides many functions, including substation automation management, power quality monitoring and management, electrical fire safety management, prepaid energy industry management, lighting control, energy control, equipment management, operations, analysis and a series of functions, Assist enterprises to use energy reliably, safely, economically, reasonably and orderly.
4 Application of Acrel solution digital transformation
Future-oriented, AcrelEMS micro grid digital platform will closely around the state grid to build new type of power system, the service "double carbon" goal, comply with the energy revolution with the digital revolution, unite development trend, actively to transform traditional grid, using digital technology to facilitate power grid more wisdom, more safe, more friendly energy Internet upgrade, Continuous contribution to clean and low-carbon energy transformation and energy security. Ankerui hopes to work with you to form an energy saving, green and low-carbon social lifestyle.
In the future, thousands of enterprise micro-grid energy efficiency systems already built by Ankerui will also be integrated into the state Grid digital platform, becoming a trickle of convergence of digital flood, moisten things silently.