• Categories:Industry Information
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• Time of issue:2021-04-01
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(Summary description)


On April 1, Shandong Province's first "trusted WLAN + smart substation" was completed and put into operation at 220 kV Wanhua Station in Yantai Development Zone. The site integrates a trusted WLAN network and intelligent inspection robots, mobile operations, small micro-weather stations and other business systems. Through a secure and trusted wireless WLAN private network, the above-mentioned business information is managed, analyzed and decided in a unified manner, and the operation of the substation is improved. The state's perception level and operation and maintenance efficiency ensure the safety of people and equipment, which greatly contributes to the construction of the intelligent IoT system of substations.

During the "14th Five-Year Plan" period, smart grids have put forward higher demands for the application of new information and communication technologies, and the trusted WLAN network adopts China's self-developed WAPI technology, and the domestic cryptographic algorithm SM4 is used as the wireless security access standard. , Adopting an original ternary security architecture system, which is safer and more reliable than WIFI technology, and is especially suitable for industries with high confidentiality requirements such as electric power, railways, and aviation.

After many studies and discussions, the State Grid Yantai Power Supply Company selected the 220kV Wanhua Station as the pilot application construction site in conjunction with the key project of the transformation of the auxiliary control system of the substation in 2021. By deploying a trusted WLAN network, it can effectively solve the problems of difficult access to wired communication and small coverage during the transformation of the auxiliary control system in the station, and realize the function of remote inspection and monitoring of the auxiliary equipment of the substation by the substation operation and maintenance personnel.

Yantai Power Supply Company will continue to optimize the "trusted WLAN + smart substation" system, continue to strengthen cross-professional, cross-departmental joint collaboration and special research, promote the in-depth integration of production and research, and explore more pilot projects under the premise of ensuring equipment safety, personal safety and data security. Multi-trusted WLAN application scenarios have been implemented, forming a batch of solutions that can be promoted and applied, and quickly promoting the application process of "trusted WLAN + smart grid".