State Grid: In the 12th Five-Year Plan, 6,100 Smart Substations will be built

On September 28, General Manager Liu Zhenya of the State Grid Corporation of China stated at the International Forum on Smart Grid 2011 that China’s smart grid construction has entered a new phase of accelerated development. During the “Twelfth Five-Year Plan” period, China will build 6,100 smart substations with 110 kV and above. .

The smart grid has entered the phase of comprehensive construction. China's smart grid construction started in 2009. According to the national grid plan, the pilot phase was planned from 2009 to 2010. Currently, there are 18 intelligent substations from 110 kV to 750 kV and 56 under construction. At the same time, smart distribution networks were built in the core areas of 23 cities. 2011 was the starting point for the comprehensive construction phase of the smart grid in the national power grid planning. Prior to this, it was reported that the national grid will build 5,000 smart substations during the “Twelfth Five-Year Plan” period, which has attracted the attention of the industry. The data released by Liu Zhenya today further shows the determination of the national grid to promote the development of smart grids.

Liu Zhenya said that in the next five years, the State Grid plans to build an UHV backbone website linking China's large-scale energy bases and major load centers with a “three vertical and three horizontal” structure, creating a highly intelligent transmission and distribution network and building intelligence of 110 kV and above. 6100 substations. Liu Zhenya said that China's energy resources and consumer demand are very unevenly distributed. Conventional and renewable energy sources are mainly in the western and northern regions. More than 70% of energy demand is concentrated in the eastern and central regions, and energy bases are located 1,000 to 3,000 kilometers away from the load center. . State Grid predicts that by 2020, the entire society will use more than 8.3 trillion kilowatt-hours of electricity, with an installed capacity of more than 1.8 billion kilowatts, and the nationwide trans-regional power flow will exceed 400 million kilowatts.

"Starting from China's national conditions, it is necessary to build a strong smart grid characterized by the coordinated development of UHV power grids as backbone grids and power grids at all levels, which are characterized by information, automation, and interaction," said Liu Zhenya.

Smart grid construction will benefit electric vehicles, new energy and other fields. Liu Zhenya also said that in the next five years, 2900 new electric vehicle charging stations and 540,000 charging stations will be newly built to ensure the application of 800,000 electric vehicles. By 2020, Form an electric vehicle replacement service network covering the company's business areas. This will greatly benefit the development of China's electric vehicle industry.

The sales of electric vehicles in recent years are poor, and there is a direct relationship with the lack of supporting facilities. China currently has only 108 charging and charging stations and more than 7,200 charging posts, which are inconvenient to charge. Therefore, although electric vehicles have various incentive policies to escort, they have been slow to develop. The development of smart grids is equally important for new energy sources. The frequency of wind power, photovoltaic power generation, and biomass power generation is unstable, and it is prone to a net-off accident. Liu Zhenya said that the development of the smart grid has enabled the State Grid to significantly increase its ability to accept new energy sources. Currently, the installed capacity of wind power and solar power has reached 3,792 kilowatts and 44,600 kilowatts respectively.

Liu Zhenya said that by 2015, the State Grid will be able to support 90 million kilowatts of wind power and 8 million kilowatts of solar power access and consumption. For the external smart grid technology safety standards that have been the focus of attention, Liu Zhenya introduced that the State Grid has established a systematic UHV and smart grid technology standard system, issued 267 enterprise-level standards, 39 industry standards, 20 national standards, and 7 international standards. . He has made breakthroughs in the research and equipment development of large-capacity transmission and transformation equipment, energy storage batteries, and obtained 1,529 patents.

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Ruixiang M&E Co., Ltd. , http://www.gzcurtainmotor.com