September 19, Mid-Autumn Festival. A branch of the State Grid Chongqing Electric Power Company's line inspection team still rushes between the important lines. Just underwent the test of summer peaks, the Mid-Autumn Festival, the National Day of power conservation tasks followed. During this summer peak season, Chongqing did not cut power, and its smart and smart power grid provided reliable protection for Chongqing’s economic and social development and people’s livelihood and happiness, and promoted social harmony. Harmony is one of the theme words in this era. To build a harmonious society requires "great wisdom". This wisdom is reflected in the decision-making and concept, as well as in innovation and implementation. As a basic enterprise related to the national economy and the people's livelihood, the “forerunner†of “scientific development and enriching the peopleâ€, the State Grid Chongqing Electric Power Co., Ltd. has always been interested in the reform and development of Chongqing and the well-being of the people's livelihood, and has built a strong smart grid as a vivid practice to support the development of smart cities. State Grid Chongqing Electric Power is based on technology upgrades, supported by information technology, and promotes the unified integration of power flow, information flow, and business flow. It is committed to building Chongqing Power Grid into a strong, self-healing, integrated, optimized, interactive, and clean economy. Grid. Clean Electricity: Building an Environmentally Friendly Society On August 9, Li Qiang, a resident who lives in Dongshengyuan, Shuangbei Road, Shuangqiao District, Chongqing, received an electricity bill from Chongqing Yongchuan Power Supply Co., Ltd. stating "-301.35 yuan". This amount of more than 300 yuan was not due to him owed to the power company, but it was owed to him by the power company. This is the two months since he incorporated his own electricity into the national grid. Li Qiang is the owner of the first resident distributed photovoltaic power generation project in Chongqing. He was very proud of this special electricity bill, and he said: "Now, I'm the power producer of the Eight Classics!" The realization of clean energy to facilitate access and withdrawal, improve the safety and stability of the power grid, and ensure a safe, reliable, high-quality power supply are important characteristics of the smart grid. Due to the limited environmental capacity, the use of clean energy is particularly important in Chongqing. State Grid Chongqing Electric Power official said that it will speed up the development of clean energy and provide adequate and clean energy supply for the people's life and economic development in Chongqing. At present, two wind farms, two waste incineration power plants, and one biomass energy power plant have been built in Chongqing City. At the same time, State Grid Chongqing Power has provided free access to grid services for distributed photovoltaic power generation projects and has accepted distributions. Power supply project 5 households. The first two years of the “Twelfth Five-Year Plan†period, the State Grid Chongqing Power Investment in Clean Energy Project cost about 800 million yuan: In the three years after the “Twelfth Five-Year†plan, the company plans to invest 1.2 billion yuan to increase the power transmission construction. At the same time, the State Grid Chongqing Electric Power Co., Ltd. intensified its power generation rights trading and purchased clean energy resources such as hydropower, wind power and biomass power generation. In the first half of this year alone, it reduced the consumption of 2.35 million tons of standard coal, 6.11 million tons of carbon dioxide emissions, and sulfur dioxide. 1.99 million tons, and actively promote the completion of the city's energy-saving emission reduction targets. The development of clean energy in the city has contributed to the construction of an environment-friendly society. However, due to insufficient resources in Chongqing, the balance of power development on the ground has not been able to meet the needs of economic and social development. At present, the dependence on Chongqing's energy resources has exceeded 30%. Through the establishment of a long-term energy strategic cooperation mechanism through UHV and resource-rich regions, the substitution of coal by electricity and electricity by electricity has become the fundamental way to crack the power shortage in Chongqing. State Grid Chongqing Electric Power official said that strong smart grid UHV as the backbone of the grid, to break the "bottleneck" of foreign electricity into the gap, to make up for the growing "hard gap", the top priority is to build 1,000 kV Sichuan Ya'an - Chongqing - Wuhan UHV Exchange project. The project plans to increase the capacity of Sichuan hydropower to enter 3 million kilowatts, which is an important means to ease the contradiction between supply and demand for electricity in Chongqing in 2015. The long-term strategic choice is to build a ±800 kV Xinjiang Hami North-Chongqing UHV DC project. The project has a capacity of 8 million kilowatts of thermal power in Xinjiang, which is a reality that guarantees power supply, optimizes electricity purchase prices, and eases environmental pressure in the long run. way. At that time, Chongqing Power Grid will form a power supply structure with complementary AC and DC power supply, which will provide a higher level of transmission security and flexibility. Intelligent: The grid has a "brain" Strong smart grid emphasizes the high degree of integration of strong grids and intelligence. The characteristics of information, automation, and interaction have given the "brains" of smart grids. The water on the ground was not completely dry, the weather was hot and the sweat wet the workers’ clothes. On September 17, the new generation of 220 kV Dashi Smart Substation in Hechuan, Chongqing, is stepping up its 110 kV bus connection work. "This substation is of great significance, ensuring that the project schedule will be a dead order," said Zhang Liang, project manager of the 220 kV Dashi Substation. Dashi Substation is a new-generation smart substation demonstration station of the State Grid Corporation of China. It has epoch-making significance for the development of smart substations. It has a demonstration role in the State Grid Corporation of China. What is the "new" of the new generation of Dashi Smart Substation? According to Lai Xiangping of the Chongqing Electric Power Division of the State Grid, Dashi Substation has three characteristics: integrated smart devices, an integrated service platform, and a modular construction model. The substation adopts integrated isolation circuit breakers, intelligent integrated capacitor banks, integrated electronic transformers, new inflatable switchgears, and multi-functional monitoring and control devices. Through integrated design, the main wiring and overall layout of substations are optimized, saving Land resources, save 34% of floor space, save 62% of construction area; build an integrated business platform, adopt hierarchical protection and control system, achieve unified information collection, comprehensive analysis, coordinated control; use prefabricated cabin type electrical combination equipment to achieve maximum chemical Factory processing, the use of pre-wired cable, pre-standard cable to achieve standardized connection and "plug and play", improve the efficiency of on-site construction. Since the "Twelfth Five-Year Plan", the State Grid Chongqing Power Substation has made great progress in its intelligent construction. At present, 12 smart substations have been built and put into operation, of which four are 220 kV and eight are at 110 kV. New substations of 110 kV and above have all been built according to the standards for smart substations. At the end of this year, Chongqing’s first new-generation smart substation, Dashi Smart Substation, will be completed and put into operation. This will accumulate experience for the promotion of a new generation of smart substations of the State Grid Corporation of China, bringing Chongqing into a “smart new eraâ€. With the continuous extension of transmission lines, traditional manual line inspection methods have become increasingly incompatible with transmission line safety and power supply reliability requirements. Under the requirements of smart grids, State Grid Chongqing Electric Power established an online monitoring system for power transmission and transformation equipment to enable all-weather and visual monitoring of power grid equipment, just as if the system had been equipped with “clair eyes†and “wind earsâ€. At the same time, the system also has a "brain" that can be transmitted and analyzed for external damage, weather data, and line operations, and is presented visually in the form of charts and numbers. In addition, the State Grid Chongqing Power also built an advanced provincial-level smart grid dispatching technology support system to provide effective technical support for grid regulation and operation. The main construction is fiber-optic communications, supplemented by microwaves, carriers, and satellites, and multiple transmission technologies coexist. The communication network formed a backbone optical communication network with 35 core regional communication networks based on a core ring and six convergence rings. It completed the promotion and construction of all power supply enterprise geographic information system platforms and realized the support of geographical information for production and marketing services. Smart: Power Supply Services Satisfy Society In 2012, Chongqing Liangjiang New District became the first pilot of smart cities in China. As an emerging model of urban development, the construction of smart cities is based on the application of information technology. On September 5, this year, the State Grid Chongqing Power held a Chongqing smart grid support smart city development seminar, fully mobilize the existing technical forces, strengthen the research of science and technology projects, build a strong smart grid, and provide support for the construction of smart cities in Chongqing. The smart grid is an important foundation and objective need for smart cities. The State Grid Chongqing Electric Power pays close attention to the development of smart cities and closely focuses on the functional positioning of “creating a reliable grid, improving energy efficiency, and providing fine servicesâ€, and steadily promotes automation including distribution and electric power. The smart grid integrated project construction in the Liangjiang New District, including 12 sub-items such as vehicle replacement facilities, smart community, and visualization platform, will ensure that it will be completed and put into operation by the end of the year. At the same time, the State Power Chongqing Power actively communicated with the Chongqing Municipal Government to obtain policy and financial support, comprehensively enhanced the smart grid to support the development of smart cities, and better promote the "three services" (service economy development, energy conservation and emission reduction services, Service Livelihood Construction). The improvement of charging and changing facilities for electric vehicles is not only an essential factor for the construction of a smart city, but also an important measure for the scientific and sustainable development of Chongqing. With the vision of “Let charging and replacement of power stations be as popular as gas stationsâ€, State Grid Chongqing Power closely follows the pulse of development of the Chongqing automobile industry and tailors convenient charging and replacement facilities for electric vehicles. With the continuous improvement of the layout, the construction of the State Grid Chongqing Power Exchange Network has been subsidized by the central government in April this year, and it has been incorporated into the overall planning for urban development in Chongqing in July, effectively supporting the demonstration of the “Ten Cities in Thousand Cities†in Chongqing. engineering. At present, Chongqing has built four electric bus exchange stations such as Jiangbei Tea Garden, eight plug-in hybrid bus charging stations, and 200 AC charging piles. At the same time, China’s first intelligent residential area with over a thousand households and a new smart garden was built in Chongqing. The life of Chongqing citizens has become smarter, more scientific and environmentally friendly; Yuzhong District, Jiulongpo District and other core regions have taken the lead in the western region. The establishment of a high-reliability demonstration area for urban distribution networks will reduce the average annual failure of customers from the current 33 minutes to 5 minutes, and the voltage qualification rate will increase from 99.609% to 99.875%. Chongqing citizens will enjoy better power supply services. At present, the State Grid Chongqing Electric Power Co., Ltd. is gradually conducting distribution network automation construction work in Jiangbei District, Nanan District and Beibei District. Fan Light,Ceiling Fan with Light,Ceiling Fans with LED Lights,LED Fan Light Yuyao Flylit Appliance Co.,Ltd , https://www.flylitlight.com
Smart grid development plays a major role in smart city construction