Power Grid Wireless Private Network Helps Power Grid Digital Intelligence and New Energy Transformation

He Qiang

Power Grid Industry Development Specialist

Introduction

The rapid development of dual-carbon targets and new energy sources brings new opportunities and challenges to power systems. Building a fully-sensible digital power grid has become the best form of future power systems. A secure, reliable, ubiquitous, flexible, and efficient power communication network is the foundation of fully sensing digital power grid. The technical characteristics of the electric power grid wireless private network provide key technologies to support the transformation and are playing an increasingly important role.

The transformation of new energy has become an important trend in the world energy field. The rapid development of new energy has brought a high proportion of renewable energy and a high proportion of power electronic equipment into the grid, and the power grid faces new challenges of safe and stable operation. At the same time, the grid connection of new energy makes the traditional relationship between power generation and consumption change from a traditional one-way process to a two-way process. Real-time and full-aware data is required to support power dispatching. A secure, reliable, ubiquitous, flexible, and efficient communication network needs to ensure the following services:

• New energy access and control: New energy, such as solar energy and wind energy, is intermittent and fluctuating. Therefore, real-time monitoring, control, and scheduling are required through the power communication network. The power communication network can connect new energy power generation equipment to the power grid control center to implement functions such as access, power adjustment, and troubleshooting of new energy, ensuring stable access and reliable operation of new energy.

• Distributed energy management: With the wide application of distributed energy, such as distributed photovoltaic and distributed energy storage, the power communication network plays an important role in the management and coordination of distributed energy. Through the power communication network, the remote monitoring, energy management, and optimal scheduling of distributed energy can be implemented, and the utilization efficiency of distributed energy and the stability of the power grid can be improved.

• Smart grid construction: New energy transformation promotes the development of smart grids, and the power communication network is an important support for smart grids. A smart grid requires comprehensive perception, intelligent control, and optimal decision-making of power grid devices, user loads, and energy markets. An efficient and reliable power communication network is indispensable. The power communication network provides high-speed and real-time data transmission and communication services and supports various applications of the smart grid, such as smart meters, demand response, and automatic control.

• Power grid security and reliability: The access of new energy and the complexity of the power system increase the requirements for power grid security and reliability. The power communication network can provide real-time monitoring and protection information transmission of the power grid, detect and handle power grid faults in a timely manner, and ensure the safe and stable operation of the power grid.

The power communication network plays an important role in the transformation of new energy. It provides reliable communication support for the access, management, control, and transaction of new energy, promotes the large-scale application of new energy and the development of smart grids, and ensures the security and reliability of the power grid. With the continuous development of new energy and the further intelligentization of power system, the importance of power communication network will become increasingly prominent. In addition to safety and reliability, the distribution characteristics of new energy require the ubiquitous, flexible, and efficient communication network.

The rapid development of digital technologies and the intelligent power grid pose higher requirements on traditional services in the power grid. Power grids have continuously improved supply reliability requirements. Distributed energy management, electric vehicle charging management, and quasi-real-time data collection of smart meters have been implemented based on a secure, reliable, ubiquitous, flexible, and efficient power communication network to ensure that original services can cope with more scenarios.

• Power grid monitoring and control: The dedicated power wireless communication network can monitor and control the running status of the power grid in real time, including monitoring parameters such as voltage, current, and power, and controlling devices such as switches and knife gates. Through real-time monitoring and control, the operation efficiency and reliability of the power grid can be improved, and the occurrence of power failure accidents can be reduced.

• Distributed energy management: The wireless communication network can monitor and manage distributed energy in real time, including the power generation status of solar, wind, and hydro energy, and the management of energy storage devices. Through real-time monitoring and management, the utilization efficiency of distributed energy can be improved and the absorption of new energy can be promoted.

• Electric vehicle charging management: The dedicated power wireless communication network can monitor and manage electric vehicle charging facilities in real time, including the status monitoring of charging piles and charging fee settlement. Through real-time monitoring and management, the utilization efficiency of electric vehicle charging facilities can be improved and the popularization of electric vehicles can be promoted.

• Smart meter data collection: The dedicated power wireless communication network can collect and transmit smart meter data in real time, including the collection of parameters such as power, voltage, and current. Through real-time collection and transmission, the accuracy and timeliness of meter data can be improved, and the data support for the operation and management of power grid can be provided.

Digitalization and intelligence of power grids continuously improve the operating efficiency and reliability of power grids. The power communication network is an important support for the digital intelligence of the power grid. A secure, reliable, ubiquitous, flexible, and efficient power communication network has become the basis for the digital intelligence transformation of the power grid.

With the continuous development of smart grids, traditional communication modes cannot meet the requirements of power systems. As an important communication means, power grid wireless private network has the characteristics of high security, high reliability, wide coverage, flexible access, large bandwidth, and small delay. It has broad application prospects in the transformation of fully-sensing power grid digital intelligence and new energy.

The power grid wireless private network has the following features and advantages:

• High reliability: The d power grid wireless private network uses dedicated frequency bands and communication protocols, which has high anti-interference capability and confidentiality, and ensures communication reliability and stability.

• High security: The power grid wireless private network adopts multiple security measures, such as encryption, authentication, and authorization, to ensure communication security and confidentiality.

• Low latency: The power grid wireless private network has low latency, meeting the requirements for real-time control and monitoring, and improving the operating efficiency and reliability of the power grid.

• Flexibility: The power grid wireless private network can be flexibly deployed based on the actual requirements of the power grid and can adapt to different power grid structures and operating modes.

• Wide coverage: The power grid wireless private network can cover all links of the power grid, including power generation, transmission, transformation, distribution, and power consumption. It can realize comprehensive sensing and intelligent control of the power grid.

With the continuous development of communication technology, the technology of electric power grid wireless private network will be upgraded to meet the communication requirements of power system. The private network for power wireless communication can also be upgraded based on the industry maturity. With the continuous development of smart grids, distributed energy, and electric vehicles, the application scenarios of power grid wireless private network are expanding.

Conclusion

As an important communication means, the power grid wireless private network is safe, reliable, ubiquitous, flexible, and efficient, and meets the full-aware development requirements of the smart grid. With the continuous development of smart grids, the application scenarios of power grid wireless private network will expand. The power grid wireless private network will be the best choice for future smart grid communication mode.

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