How does the equipment enterprise get involved in the "power transmission and distribution" type smart grid

Different from European and American countries, China's smart grid has placed more emphasis on the transmission side, emphasizing the strong smart grid under the UHV architecture.

Currently, the focus of foreign countries to develop smart grids is not the voltage level, but the priority is to develop more efficient and energy-efficient distributed energy systems; the development of smart grids in foreign countries is to provide a free dynamic access platform for various distributed energy sources, and to save energy and Demand-side management provides an intelligent control and management platform, and provides innovative application platforms for storage vehicles and various new types of appliances to solve problems such as power supply security and sustainable development. Just as many PCs form a local area network, many distributed energy sources form a microgrid. These microgrids need to be connected to the main network, which requires an intelligent management system.

However, in China, the definition of the smart grid by the State Grid Corporation of China is: a strong smart grid characterized by information, digitization, automation, and interaction based on the strong grid with coordinated development of grids at all levels and UHV grids. .

Hu Zhaoguang, vice president of the State Grid Energy Research Institute, explained that by 2020, the State Grid will face 150 million kilowatts of wind power transmission problems, and will focus more on the transmission side. This is due to the characteristics of China's economic development stage and energy concentration. decided. "After all, China's national conditions are different from the West. Distributed energy sources cannot be the basis and mainstream of smart grids."

However, some experts believe that in the current system, the grid companies are the only buyers of electricity, and the power distribution side will erode the interests of the grid companies, while emphasizing that large-capacity, long-distance transmission of energy can further enhance the control of the grid companies. . Some experts questioned that since the separation of the plant network in 2004, China’s power grid investment has lagged behind the investment in power supply, and the power grid construction on the power distribution side is a weak link in the power grid construction. In the future, UHV is the skeleton to emphasize the construction of the smart grid on the transmission side. This gap will be further increased. These may make smart grid construction ignore the intelligence of the distribution side, such as distributed energy, and will not allow more consumers to benefit from electricity.

The Polaris Power Grid, the organizer of the 2011 China Smart Grid Industry Development Summit Forum, suggested that the State Grid should learn from the EU’s “super smart grid”. While building UHV long-distance power transmission, it will focus on developing suitable distributed energy development. Electrical side of the smart grid.

The National Energy Smart Grid (Shanghai) R&D Center will be the host of the National Energy Bureau, National Grid, China Southern Power Grid, and local governments' annual related projects. The “2011 China Smart Grid Industry Development Summit will be held on November 10, 2011 in Shanghai. "Forum" will then discuss the compatibility of the transmission side and the distribution side of the smart grid, as well as the priorities between the two sides and the direction of the equipment manufacturer's involvement.