In order to implement the new energy security strategy of General Secretary Xi Jinping’s “Four Revolutions, One Cooperation” and conform to the development trend of the integration of the energy revolution and the digital revolution, at the beginning of this year, State Grid Corporation of China proposed the strategic goal of “three types, two networks, world-class”. All units of the company resolutely implemented the deployment of the company’s party group, combined with the actual situation, actively innovated and explored, promoted the construction of the ubiquitous power Internet of things, and served the intelligent development of the city, and achieved positive results.
The pulse of smart energy is beating in urban development
On October 17, the Ministry of Science and Technology wrote to the Zhejiang Provincial People’s Government to support Hangzhou in building a national new-generation artificial intelligence innovation and development pilot zone. On the same day, an artificial intelligence “helper” in the State Grid Hangzhou power supply Company has been officially employed for 296 days.
In the power supply service command center of the Hangzhou Power Supply Company, the ringing of the telephone, the sound of issuing commands, and the sound of keyboard tapping on the three-row consoles came one after another. Among them, the second row of “virtual seats” was empty, and a stack of Hangzhou deployment operation instruction tickets with the fresh stamp of “AI Execution” were placed on the workstation. The owner of this work station is the country’s first “virtual AI distribution network dispatcher” – “Patch” developed by the artificial intelligence party member technology research team of Hangzhou Power Supply Company.
“It can understand every word I say, and there will never be any wrong instructions.” As a front-line employee, Lou Di is very positive about the work of “Patch” since he took up his post, “In the past, the power supply service command center docked us one-to-many, But it’s impossible for anyone to talk to several sites at the same time. Now, we don’t have to wait for a phone call anymore.”
As Lou Di felt, “Patch” has “three heads and six arms” and can give orders to front-line employees one-to-many, reducing the average time-consuming of complex services such as distribution network failures to one-fifth of the previous one, and 24 Uninterrupted monitoring of distribution network data and processing of specific tasks. Judging from information alone, “Patch” can save 40,000 man-hours per year for the power supply service command center. “Patch” has the characteristics of a new generation of artificial intelligence “deep learning”. The deep learning of 5000 hours of corpus and distribution network knowledge graph enables “Patch” to avoid human error while improving work efficiency.
“The starting point of our research and development of ‘Patch’ is the actual production needs, and the new generation of artificial intelligence can be used in production practice.” said Zheng Weiyan, a member of the “Patch” R&D team. In fact, “Patch” has been promoted and applied to power supply emergency repair business in Huzhou.
There are not only “Patch” who “sit in the office”, but also an intelligent management and control platform for on-site safety operation behavior “on the spot”. In the equipment area of Hangzhou 220kV Xingnan Substation, 14 spherical cameras automatically identify and capture illegal actions. Once caught, the equipment installed next to the cameras immediately issues a three-level warning to the parties, the person in charge and the background. This system can also accumulate data, draw “personnel job portraits”, and finally realize the multi-purpose terminal of the Internet of Things, and support business development such as intelligent transportation inspection and talent evaluation.
As a “personalized” product of the power supply company, the intelligent management and control platform for on-site safety work behavior, like “Patch”, is not only an exploration of the digital transformation of enterprises, but also in line with the development trend of the city.
The construction of ubiquitous power Internet of Things can not only improve the internal production and operation efficiency of power grid enterprises, but more importantly, it will benefit people’s livelihood and make residents use energy more intelligently.
In Dehui Apartment, Xiaoshan District, Hangzhou, the operating status of electric vehicle charging piles, video surveillance, wireless smoke detectors, fire water pressure, and smart single lights are all displayed in real time on the “Future Community Comprehensive Service Platform” controlled by property managers. “Future Community Comprehensive Service Platform” is a new attempt by Hangzhou Power Supply Company to use advanced technologies such as Internet of Things, cloud computing, and big data analysis to serve the community with the promotion of future community construction in Zhejiang Province as an opportunity. And these, in the opinion of Xu Xianghai, director of the Internet Office of Hangzhou Power Supply Company, will also feed back the main business of the power grid: “For example, by monitoring the power facilities in future communities, we can complete the ‘last mile’ power construction, realize power transmission, transformation, distribution and consumption. Extensive interconnection of equipment and in-depth collection of information improves on-site fault handling, accurate and proactive repair capabilities, and the level of safe and economical operation of the power grid.”
The ubiquitous power Internet of Things has entered ordinary life, not only citizens can experience it, but tourists can also feel it. In the reception center of Yunqi Inn on Shanshan Road, when the front desk staff check in for guests, they will always recommend them to scan the QR code of the “Low-Carbon Check-in Plan” at the front desk. The company realizes the monitoring of independent energy consumption of hotel rooms through the transformation of smart meters. Passengers can get an Electronic “carbon list” of energy consumption during their stay when they check out. Combine the collected hotel electricity consumption data with hotel occupancy and revenue data to calculate the ‘energy efficiency index’ of each hotel.
At present, Hangzhou Power Supply Company is accelerating the construction of a business chain based on big data and a value chain centered on electricity, and promotes the construction of Hangzhou Binjiang Pan-in-Power Internet of Things Pilot Demonstration Zone. The use of grid data to protect the elderly living alone, smart management of communities, and comprehensive energy services will all appear in this pilot demonstration area. The company seizes the development opportunity of Hangzhou to build the first city of digital economy in the country, builds an energy service platform centered on electricity, realizes win-win sharing and helps urban development.
Accelerate first try, pay attention to practical effect
State Grid Nanjing Power Supply Co., Ltd. is piloting and piloting in Lishui District, exploring the construction of a ubiquitous power Internet of Things demonstration area covering transmission, transformation, distribution, and use, effectively improving county power grid operations and power supply services, and promoting the pilot experience. Smart grids help build a smart city in Nanjing.
Nanjing Power Supply Company continued to deepen the “Internet + power supply service”, and continued to expand the proportion of online business. Taking Lishui District as an example, in 2019, the number of customers going to the business hall to handle business dropped by 45% year-on-year. By collecting the electricity demand of major government projects, the Lishui District Power Supply Company carried out the construction of the supporting power grid ahead of time. The average connection time of high and low voltage was shortened to 18 days and 2.5 days respectively, and the number of complaints per 10,000 households was 0.23, ranking among the top in Jiangsu Province.
“We combined the technical conditions, number of users and characteristics of electricity consumption in the Lishui area to explore the construction of a ubiquitous power Internet of Things in terms of the construction of a wireless private network for power, the integration of business processes for operation and distribution, the construction of a smart IoT system, and the smart operation and inspection of power grid equipment. , to create a practical model that can be promoted.” said the director of the Science and Technology Internet Department of Nanjing Power Supply Company.
In the process of demonstration construction, Nanjing Power Supply Company always adheres to the standard first, and pays attention to the summary of pilot experience. The pilot construction of a ubiquitous power Internet of Things demonstration area in Lishui District can not only use Internet of Things technology to support grassroots burden reduction, optimize resource allocation, but also extract mature experience, promote construction models, and continuously meet the needs of economic and social development and people’s energy consumption for a better life .
“Let customers run only once, and not even once in the future. We provide services through the Internet, mobile terminals, etc.” This is the goal of Wei Xu, director of Dongping Power Supply.
Improving customer service quality, efficiency and satisfaction is just an intuitive manifestation of the ubiquitous power Internet of Things on the power consumption side. The ubiquitous power Internet of Things has played an important role in transmission, transformation, distribution, and use, and has changed the operation mode of traditional power grids.
At the end of 2018, Lishui took the lead in realizing the full coverage of the power wireless private network in Nanjing. As of September this year, a total of 46 4G private network base stations have been put into operation in Lishui area, with more than 5,100 service terminals of access equipment status awareness, power consumption information collection, distribution automation, etc.; the “three remote” rate of distribution automation sites has reached 100%; the online rate of the distribution automation private network is 15 percentage points higher than that of optical fibers, and the online rate of the private network for electricity consumption information collection is 2 percentage points higher than that of the public network.
Real-time in-depth perception of the status of the power grid and customers, as well as the integration of operation and distribution, is an important basis for promoting the coordination and intelligent management and control of various power grid disciplines, and cultivating the “internal strength” of the power grid.
In June, Lishui District Power Supply Company also took the lead in completing the optimization and improvement of business distribution and deployment, and started the application of the SG-CIM4.0 model in the source-end system, initially realizing the core functions of the power grid resource business, and promoting the unified maintenance, centralized management and coordination of distribution network data. Sharing; optimized the “one map” input mode of the distribution network, and completed on-site verification and data correction for 283 medium-voltage lines and 4,447 low-voltage station areas; the line loss management capability has been steadily enhanced during the same period, and the daily pass rate of line loss of 10kV branch lines It increased by 6% year-on-year and stabilized at more than 98.5%.
“We have achieved the improvement of the work efficiency of the front-line teams and the collaborative management of inter-professional and cross-departmental departments. In the future, we still have a long way to go in terms of enterprise lean management and control.” Luan Ning said that the Lishui District Power Supply Company will further promote the ubiquitous power supply The construction of the networking demonstration area truly realizes the intelligent control of the power grid area, the digital services for customers throughout the process, and the diversified integration of enterprise formats.
State Grid Nanjing Power Supply Company will explore the application of artificial intelligence technology in power grid operation on the basis of the integration of operation, distribution and deployment; accelerate the transformation of the Internet of Things for electricity collection, and comprehensively carry out the construction of smart station areas; research and expand multi-station integration and other diversified The operation mode is optimized to promote the “multi-stream integration” of energy flow, business flow and data flow; strengthen the development of comprehensive energy service business, carry out standardized innovation of market-oriented systems and mechanisms, improve social comprehensive energy efficiency, and promote business innovation.
In 2013, Nanjing was listed as the first batch of national smart city construction pilots, and gradually innovated and explored in various fields such as “Internet + government affairs” and “Internet + people’s livelihood” in cloud, management, edge, end, and application. The ubiquitous power Internet of Things practical experience of “one source of data, one map of power grid, and one line of business” is accelerating its promotion on a larger scale, and efficiently supports the construction of Nanjing’s smart city from the aspects of smart grid operation and comprehensive energy efficiency improvement.
According to the company’s deployment, by the end of 2019, Nanjing Power Supply Company will take the lead in initially building a ubiquitous power Internet of Things demonstration area, with a wireless private network coverage rate of 100% in the area, a 50% increase in the efficiency of operation and inspection, and a power supply reliability rate of 99.999%.
Using live data to help power grid business digital transformation
At 15:32 on November 6, in the distribution network dispatching hall of the State Grid Urumqi Power Supply Company, the distribution network perception system popped up a warning: 10kV Cangjiu Line No. 33 branch line switch was out of power, and the fault range involved Cangfanggou East Road 125 households along the line and one important customer, please deal with it quickly. This is the distribution network dispatch perception system developed by the company based on the integration of operation and distribution, with the goal of co-construction and sharing of system data and comprehensive perception, combined with the construction of the ubiquitous power Internet of Things.
The system can automatically extract the key equipment data of the distribution network lines of the power grid resource graphic management system in real time, and carry out intelligent analysis. On this basis, the system integrates multi-system data information such as scheduling automation, power consumption information collection system, and 95598 work orders, extracts real-time operating data and status of each system, and realizes real-time monitoring of the operating status of distribution network equipment and rapid fault judgment. At present, it has been piloted in 14 distribution network lines. The accuracy of fault judgment of pilot lines has increased from 63.5% to 92.4%, and the average time of fault handling of distribution network lines has dropped from 121 minutes to 92 minutes.
This year, the system will cover the entire distribution network in Urumqi, realizing the panoramic layered Display of medium-voltage to low-voltage single-line diagrams of 1,059 distribution network lines and second-level perception of 47 important customer power consumption information.
In addition, in August this year, the Urumqi Municipal Government approved the establishment of the Municipal Energy (Electricity) Planning Big Data Research Center and the Municipal (Power Grid) Planning Center to carry out research on the city’s energy (electricity) development strategy, planning and policy, and energy (electricity) big data information Collect, analyze, consult and evaluate, make full use of various business data resources, give full play to the value of big data, and promote the efficient implementation of ubiquitous power Internet of Things construction.
The energy (power) planning big data center fully integrates the company’s internal data such as development, marketing, transportation inspection, scheduling, and external data such as urban planning, energy, and economy. By promoting data aggregation, integration, and application, it optimizes business processes and promotes professionalism Collaboration provides strong information support for company decision-making, business management, and professional applications.
At present, the company’s energy (power) planning big data center has been initially built, and the city planning bureau’s three-dimensional geographic information data migration, 35 kV and above power grid model iterative construction has been completed, with planning load forecasting, grid topology analysis, and auxiliary site selection. line, etc.
“After the completion of the energy (power) planning big data center, the most direct effect is that a project starts from planning, storage, construction, operation and maintenance, and all the data and status can be gathered on the big data center platform. The information at the time point can be retrieved from the platform at will.” Miao Gang, deputy chief information engineer and director of the Science and Technology Internet Department of Urumqi Power Supply Company, introduced that the ubiquitous power Internet of Things construction further taps and utilizes the huge application potential and value of data. On the basis of full business data, the differentiated data of the self-built business system is collected to break through data barriers, fully reflect the value of data, and provide customers with intelligent and humanized services.