2021年4月23日

Guangzhou Nansha Power Supply Co., Ltd. : for the first time, it stepped into “one hour” and accelerated the building of world-class power grid

Guangzhou Nansha Power Supply Co., Ltd. : For the first time, it has stepped into “1 hour” to accelerate the building of world-class power grid

In accelerating the construction of “Three Districts and One Center” in Nansha District, high reliability of power supply is an indispensable and important guarantee. Now, how reliable is Nansha’s power supply? At the end of March, the latest data on Nansha’s power supply came out. According to statistics, in 2020, the average annual power outage time of users in Nansha District will be 0.65 hours, stepping into the “1 hour” range for the first time, reaching the world-class level and on a par with the international metropolis in the world.

“1 hour” is not only a new starting point, but also a gas station to accelerate the construction of a world-class power grid. According to the development layout of Nansha during the 14th Five-Year Plan period, especially for the electricity demand of important areas and major projects, Nansha Power Supply Bureau plans the layout in advance to match the high-end positioning of Nansha with first-class power grid.

During the 14th Five-Year Plan period, the power supply capacity increased by 73% to ensure the electricity demand for the construction of the “Three Regions and One Center”

Since 2021, the construction of Nansha District has stepped into an accelerated stage. According to the key construction projects of city siege and settlement in 2021 released by the Nansha Government, there are 202 projects in total with an annual investment of 91.06 billion yuan, involving a total investment of more than 620 billion yuan.

According to the requirements of the government, the first step is a decisive battle, and the first step is a sprint. Rapid construction projects have posed new challenges to Nansha Power Supply Bureau. How to effectively guarantee the rapidly increasing demand for electricity? To this end, Nansha Power Supply Bureau has intensified its work and planned to build 15 new substations and expand 3 substations during the 14th Five-Year Plan period, with a new power supply capacity of 1.7 million KVA and a power supply capacity increase of 73%.

Compared with the 13th Five-Year Plan period, the electricity consumption in Nansha District increased from 5.39 billion kWh to 7.14 billion kWh, a cumulative growth of 32.5%; The power load increased from 921,000 kilowatts to 1.202 million kilowatts, a cumulative increase of 30.5%. With the construction of the substation, the power supply capacity of Nansha during the 14th Five-Year Plan period has a strong guarantee.

Duplicate the power supply mode at the tip of Lingshan Island, and build a “2 minutes” high-reliability demonstration area for key areas.

Lingshan Island tip is an important area for the development of Mingzhu Bay. Nansha Power Supply Bureau has built a high reliability demonstration area in Lingshan Island tip where the average annual blackout time is less than “2 minutes”. The demonstration area is characterized by dual-loop network operation and reaches 8 “100%”, namely power supply reliability rate, power conversion rate, intelligent electric room coverage rate, intelligent station coverage rate, voltage qualified rate, low voltage contact rate, self-healing coverage rate, and electric room fiber coverage rate are 100%. At present, Lingshan Island tip has realized the operation of double-loop network with high reliability power grid, and automatic configuration and optical fiber communication have been realized in the whole region.

At present, in order to match the positioning of “three zones and one center” in Nansha, Nansha Power Supply Bureau will promote the Lingshan Island tip mode in Nansha Free Trade Zone, Hengli Industrial Park and Dagang Advanced Manufacturing Base, laying a solid power supply foundation for the development and construction of these key areas.

Adhering to relying on science and technology for manpower, Nansha Power Grid has unmanned aerial vehicles, 5G, AI identification and other technical guards

As the saying goes, it is hard to start a business and hard to keep it. At present, construction projects are everywhere in Nansha, and how to maintain the existing huge power grid is also a difficult problem.

In order to protect Nansha power grid, Nansha Power Power Bureau has developed and applied a number of high technologies, especially the use of UAV +5G+AI identification to carry out line inspection, which has achieved preliminary results. To DaGang power substation as an example, as guangzhou’s first unmanned automatic operation for the whole power substation, unmanned aerial vehicle (uav) as the carrier, take advantage of 5 g transmission, install the AI in the unmanned aerial vehicle (uav) identification equipment, personnel, vehicles, and can identify line protection zones, illegal buildings once found abnormal, alarm, effectively improve the working efficiency, to protect the grid provides a new means of nansha. Nansha Power Supply Bureau continues to increase investment in scientific and technological equipment. At present, the self-healing coverage rate of Nansha 10 kV lines has reached 92%, and the power supply can be restored within 2 minutes at the fastest after failure.

Standing at the starting point of “one hour” of Nansha Power Grid, Nansha Power Supply Bureau will closely follow the construction requirements of “three districts and one center”, build and maintain Nansha Power Grid with world-class standards, and strive to achieve the average annual blackout time within 0.5 hours in 2021, helping Nansha to build a first-class business environment. (Author: Xu Ping)

Source: Guangzhou Nansha Power Supply Bureau

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