5G+ smart grid opens a new era of powerTIME:2019-11-08 03:13:42   浏览次数:938

The global power network is accelerating the upgrade to the smart grid, and information communication is rapidly moving toward the 5G era. Some wonderful chemical reactions are taking place between the two super-fast infrastructures.

5G injects new impetus into the smart grid

The ITU defines three major scenarios for 5G, namely enhanced mobile bandwidth (eMBB), ultra-reliable low-latency communication (uRLLC), and massive machine-like communication (mMTC). They have different levels of application in aspects of power generation, transmission, transformation and distribution.

At the power generation end, the main scenarios of 5G applications include new energy power prediction and state awareness, and distributed wind power network management and control. These scenarios have high requirements for the number of connections and latency for wireless communications. Among them, centralized new energy monitoring requires millions of connections, and wind turbine blade pitch control requires low latency of no more than 20 milliseconds.

In the transmission section, the main scenarios of 5G applications are transmission line condition monitoring and drone inspection. This type of scenario requires a high number of connections and bandwidth. Among them, online monitoring of transmission lines requires connecting and managing 10 million-level sensors, and the UAV inspection line requires a large bandwidth of 100 Mbps.

At the power transformation end, the main scenario of 5G applications is substation intelligent inspection. Replacing manual movements into substations with intelligent robots reduces risk and increases efficiency. This type of scene requires a large bandwidth of 100 Mbps to support the robot to return HD video.

In the power distribution section, 5G is widely used, covering the whole process of fault monitoring and positioning to precise load control. These applications have very high requirements for low latency, in which distribution network protection and control, smart distribution network micro-synchronous phasor measurement require ultra-low latency of less than 10 milliseconds, and load control based on user response is also required to not exceed 20 Low latency of milliseconds. At the same time, the number of connections that need to be managed in this link is relatively large, basically in the millions and ten million.

At the power utilization end, 5G applications are also very extensive, involving all aspects of energy metering and power management, such as power information collection, distributed energy and energy storage, electric vehicle charging piles, and smart homes. The most prominent requirement for this layer of application is wide connectivity, which is basically in the tens of millions or even hundreds of millions.

In addition, in terms of emergency communication, 5G can better support scenarios such as voice scheduling and video surveillance, providing greater bandwidth and wider connectivity to meet the explosive needs of temporary scenarios.

The changes that 5G brings to the power industry are happening. Under the efforts of many parties, 5G+ smart grid will hand over a perfect answer of 1+1>2.