With the development of internet technology, people's lives are gradually becoming more intelligent. Electricity, which is very important to people's lives, is also facing intelligent reform. Let's take a look at the efforts Tianjin has made in this regard.
Smart grids are making Tianjin "smart" and improving our lives.
"To improve the efficiency of emergency repairs, during the summer season, we have deployed 102 fixed power distribution repair stations with 1,119 personnel and 315 repair vehicles, ready for emergency repairs at any time," said Li Congli, deputy director of the Equipment Department of State Grid Tianjin Electric Power Company (hereinafter referred to as "State Grid Tianjin Electric Power"). Summer is the peak season for urban electricity consumption, and power supply safety is directly related to all aspects of citizens' lives. Ensuring power supply safety has become an important task for power companies during the peak summer season. Recently, reporters learned from the press conference on "Entering the Ubiquitous Power Internet of Things " and peak summer power supply guarantee held by State Grid Tianjin Electric Power that in order to maintain the stable operation of the power grid during the summer season, State Grid Tianjin Electric Power has taken a number of measures, including equipment management, hidden danger investigation, and power grid transformation, and applied the ubiquitous power Internet of Things to ensure the safety of the power grid during the peak summer season. At the same time, the widespread application of the ubiquitous power Internet of Things has also brought smart grids into people's lives and built smart cities.
Ubiquitous power Internet of Things becomes a new highlight in welcoming peak summer demand.
Reporters learned at the press conference that this summer, the peak load of the Beijing-Tianjin-Tangshan power grid, where the Tianjin power grid is located, is expected to reach 69 million kilowatts, an increase of 6.4% year-on-year. Among them, the maximum load in Tianjin is expected to reach 16.5 million kilowatts during the peak summer season, an increase of 7.77% year-on-year. The power grid is facing problems such as a significant increase in grid load, tight power supply and demand during certain periods, and heavy equipment load in some areas. "To ensure power supply safety during periods of high load, we constructed the 500 kV double-circuit transmission line from Beijing New Airport City to Tianjin Nancai, improving the Tianjin power grid structure and enhancing its external power receiving capacity; we also constructed the 220 kV High-tech Zone transmission and transformation project, the Yuyang substation capacity expansion project, and the Chunhua Road and Environmental Protection Park expansion projects, further enhancing the power grid's supply capacity. We completed the troubleshooting of power generation , transmission, and transformation equipment ahead of schedule , completed 240 planned maintenance items for main grid equipment, and 14 unit maintenance operations, ensuring the safe operation of equipment during the summer; and we strengthened emergency duty and emergency response, established and improved the emergency duty system, and established emergency mechanisms for severe weather and flood warnings," said Wang Gang, director of the State Grid Tianjin Power Dispatching Center.
In addition, the establishment of the ubiquitous power Internet of Things (IoT) is another new highlight for this year's peak summer season. By applying modern information technologies such as mobile internet and artificial intelligence, as well as advanced communication technologies, the ubiquitous power IoT enables interconnection and human-machine interaction across all aspects of the power system. "Among these, the comprehensive development and utilization of clean energy, load demand response based on virtual power plants, and proactive distribution networks will allow for faster responses in various aspects during the summer peak load period, including power balance, equipment operation and maintenance, hidden danger investigation, and situational awareness, effectively alleviating the pressure on the power grid. The energy big data center will also provide guidance and services for customers to use energy rationally and conserve energy," said Wang Gang.
Smart grids are making Tianjin "smart" and improving our lives.
Smart meters help users understand their individual electricity consumption.
Based on the ubiquitous power Internet of Things, State Grid Tianjin Electric Power is using smart energy to support the construction of smart cities.
In the Smart Energy Town Exhibition Center on the second floor of the Integrated Energy Service Center, a smart metering system displays the monitoring footage of Room 701, Unit 2, Building 5 of the Talent Apartment on the right side of the screen, and the energy efficiency analysis chart of the resident user on the left. It clearly shows that the user's air conditioner accounted for 18.5% of the daily electricity consumption, corresponding to an electricity cost of 0.6 yuan, and the electric water heater accounted for 44.68% of the daily electricity consumption, corresponding to an electricity cost of 1.623 yuan. Through the smart metering system, users can clearly see the daily, weekly, and monthly electricity consumption of their different appliances and their corresponding electricity bills. What kind of "black technology" is used in this?
"In the smart energy town, we have deployed new smart meters that can obtain real-time power and operating curves for each user's different devices," said Yu Jiancheng, deputy director of the Internet Department of State Grid Tianjin Electric Power. Installing smart meters can help users understand their individual electricity consumption, thereby reducing household electricity bills.
In addition to providing smart services such as intelligent metering systems, the public's access to clean and green electricity, affordable and high-quality energy, and convenient and flexible energy services will all be connected to the smart grid. "Regarding clean and green electricity, new green energy sources such as photovoltaics, wind power, and ground source heat pumps will be integrated into the grid through the smart grid, achieving energy conservation and providing clean energy for the public. Regarding affordable and high-quality energy, new energy-saving equipment such as thermal storage electric heating is being used to help urban and rural residents and public buildings such as schools create a coal-free living environment. Furthermore, the application of integrated smart grid energy technologies will achieve energy conservation and consumption reduction in all aspects of energy use, including planning, operation, maintenance, and trading, thereby improving energy utilization efficiency. For example, the photovoltaic ground source heat pump developed by the Beichen Development Zone Management Committee in 2017 saved 2.2 million kilowatt-hours of electricity and 1.5 million yuan in two years, improving energy efficiency by 19%. Regarding convenience and flexibility, through 'Internet+' smart services, users will be able to check their home's water, gas, heat, and electricity consumption data in real time, and pay various energy bills via their mobile phones," said Yu Jiancheng.
Effective integration of smart grid and smart city
It is understood that in 2018, State Grid Tianjin Electric Power launched the "1001 Project," which included the development of smart industrial parks and smart energy towns as demonstration projects. Based on regional energy characteristics and development trends such as high-proportion clean energy utilization and integrated energy services (electricity, cooling, heating, and gas), the company established the Huifengxi Smart Energy Town in the Sino-Singapore Tianjin Eco-City and the Dazhangzhuang Smart Energy Town in the Beichen Industrial-Urban Integration Zone. In addition, State Grid Tianjin Electric Power also constructed the Binhai New Area "Two-Grid Integration" Comprehensive Demonstration Project and the Tianjin Energy Big Data Center. Han Bing, General Manager and Deputy Secretary of the Party Committee of State Grid Tianjin Electric Power, stated: "Through the construction of the Binhai New Area 'Two-Grid Integration' Comprehensive Demonstration Project, we aim to improve asset management efficiency, grid operation level, customer service quality, and promote the consumption of clean energy; the Tianjin Energy Big Data Center, by integrating energy, municipal, transportation, and economic data, provides auxiliary services for enterprise energy use."
"In general, the smart grid supports smart cities in six aspects. First, smart sharing promotes the deep integration of energy equipment and urban infrastructure. This includes implementing multi-purpose streetlights and transmission towers, expanding functions such as urban monitoring, environmental monitoring, wireless pilot projects, and charging facilities; and piloting the construction of green energy public buildings, organically combining photovoltaic and other new energy equipment with public facilities such as roads, seats, buses, platforms, and trash cans. Second, smart energy supply promotes the establishment of a safe, efficient, clean, and low-carbon energy supply system. This involves building a grid-source-load-storage collaborative interaction system to achieve plug-and-play access to urban distributed energy sources such as wind, solar, and gas combined heat and power, and energy storage, promoting the consumption of clean energy and high-quality power supply. Third, smart energy use promotes the construction of intelligent sensing and multi-energy complementary energy use." The system will widely apply standardized data collection and sensing equipment for multiple energy sources, including cooling, heating, and electricity, to enhance the perception capabilities in the energy consumption process. Fourth, smart homes will promote a convenient, comfortable, energy-saving, and environmentally friendly home life. New smart meters with functions such as load identification, power outage detection, and remote diagnostics will be promoted to achieve household energy efficiency analysis, power outage notification, and error warning. Fifth, smart mobility will promote the formation of widely covered, efficient, and flexible charging services. While providing users with convenient and efficient charging services, new technologies such as high-power wireless charging and two-way interaction between electric vehicles and the power grid will be piloted. Sixth, smart services will promote the construction of a comprehensive energy supply and data sharing smart platform. A smart energy integrated service platform will be built to create a 'co-construction, sharing, and win-win energy internet ecosystem,'" said Han Bing.
EN
