Problems and solutions of power system and its automation

Power system and its automation face some problems and challenges in the development process, involving the stability, efficiency, security and sustainability of power supply. The following is a detailed discussion of these problems and their solutions.

existing problems

1. Insufficient peak-shaving ability: With the large-scale access of new energy, the peak-valley difference of power system increases, which puts forward higher requirements for the peak-shaving ability of the system. Traditional thermal power, hydropower and other energy sources have limitations in regulating capacity, and it is difficult to meet the rapidly changing load demand.

2. Limitations of energy storage technology: Energy storage is the key to balance supply and demand, but at present, energy storage technology still needs to be improved in scale, cost and efficiency. The construction and management of large-scale energy storage systems also need new technologies and methods.

3. Low level of intelligent dispatching: Although intelligent dispatching is an important way to improve the operation efficiency of power system, the intelligent level of power system in China still needs to be improved, especially in data processing, forecasting analysis and automatic control.

4. Safety and stability: With the expansion of power grid scale and the complexity of structure, it is a challenge to ensure the safe and stable operation of power system. In particular, extreme weather and emergencies have a greater impact on the power system.

5. Information security and privacy protection: The automation system relies on modern information technology, which brings information security and privacy protection issues. Once the power grid control system is attacked by network, it may cause serious consequences.

6. New energy grid connection: Wind power and other new energy power generation have volatility and uncertainty. How to efficiently access the power grid, ensure the stability of the power system and the effective use of new energy is a problem that needs to be solved at present.

Solution measures

1. Emphasize the construction of peak-shaving ability: improve the peak-shaving ability of existing power sources through technical transformation, such as flexible transformation of coal-fired power units, and build pumped storage power stations and new energy storage facilities, such as battery energy storage and hydrogen energy storage.

2. Optimize energy storage technology and layout: research more efficient and lower-cost energy storage technologies, such as large-scale lithium-ion battery energy storage system and compressed air energy storage, and make rational layout in the power system.

3. Promote the construction of intelligent dispatching system: relying on modern information technologies such as big data, cloud computing and artificial intelligence. To improve the intelligent dispatching level of power system and realize accurate forecasting and optimal dispatching of both supply and demand sides.

4. Improve security and stability: strengthen the infrastructure construction of power grid and improve the disaster resistance of power grid; At the same time, establish and improve emergency plans to improve the ability to cope with extreme weather and emergencies.

5. Strengthen information security protection: strengthen the security protection of automation system, adopt advanced network security technology, and establish a perfect security monitoring and early warning system.

6. Promote efficient grid connection of new energy: study the interactive technologies between new energy power generation and power grid, such as new energy forecasting power generation technology, virtual power plant technology, etc., so as to improve the grid connection efficiency of new energy and the regulation and control ability of power system.

To sum up, in view of the problems existing in power system and its automation field, it is necessary to build a more flexible, intelligent and safe power system through technological innovation and system optimization, so as to meet the needs of large-scale development of new energy, ensure the stability and security of power supply, and promote the efficient utilization of clean energy and the sustainable development of power industry.