Views: 0 Author: Site Editor Publish Time: 2024-07-26 Origin: Site
Under the strong stimulus of multiple policies, the scale of clean energy construction such as photovoltaics and wind power continues to expand, driving the corresponding energy storage outbreak. The lithium iron phosphate battery energy storage system has become a "target" that wind, solar, and photovoltaic systems are competing to attract.
The safe integration of renewable energy sources such as wind power and photovoltaic power into the grid, as well as the inherent randomness, intermittency, and volatility of wind power, determine that its large-scale development will inevitably have a significant impact on the safe operation of the power system.
With the rapid development of the wind power industry, especially the fact that most wind farms in China belong to "large-scale centralized development and long-distance transmission", the grid connected power generation of large-scale wind farms poses severe challenges to the operation and control of the large power grid.
Photovoltaic power generation is affected by environmental temperature, sunlight intensity, and weather conditions, and exhibits random fluctuations. China has shown a development trend of "decentralized development, low voltage on-site access" and "large-scale development, medium to high voltage access", which puts higher demands on power grid peak regulation and safe operation of the power system.
Therefore, large capacity energy storage products have become a key factor in solving the contradiction between the power grid and renewable energy generation.
The lithium iron phosphate battery energy storage system has the characteristics of small size, light weight, long cycle life, flexible operation mode, high efficiency, safety and environmental protection, and strong scalability. It has been applied in the national wind and solar energy storage and transmission demonstration project, which will effectively improve equipment efficiency, solve local voltage control problems, enhance the reliability of renewable energy generation and improve power quality, making renewable energy a continuous and stable power supply.
Firstly, lithium iron phosphate battery energy storage can effectively suppress the problem of wind power fluctuations, and smoothly output electricity in three modes of normal operation, grid fault operation, and off grid operation during the grid operation of wind power systems, improving power quality.
Under normal operating conditions, the smooth fluctuation of active power output from the power supply system is used to ensure the power quality and stability during the operation of the wind power grid connected system.
In the event of a power grid malfunction, providing reactive power support to the grid helps the wind power grid system quickly restore normal operation.
By stabilizing the penetration rate of the wind power grid and the system voltage frequency, the overall operational performance of the wind power grid can be improved in the absence of grid operation.
Secondly, lithium iron phosphate batteries have high specific energy and specific power for energy storage, and have low self discharge, making them environmentally friendly in terms of environmental protection. Lithium iron phosphate batteries are pollution-free, and their application in specific wind power generation systems is not only beneficial for reducing the generation and damage of waste gas energy, but also for strengthening environmental protection, reducing energy pollution, and so on.
Thirdly, compared with other energy storage technologies, lithium iron phosphate batteries have a larger energy storage capacity, higher energy utilization efficiency, higher energy density, and excellent energy storage performance. They have a wide range of applications and development prospects in smoothing wind power loads, backup power sources, and other aspects.
Wind power generation technology is mature and relatively low-cost in renewable energy. In the context of the dual carbon strategy, lithium iron phosphate battery energy storage systems will play an indispensable role in the future power system, and will experience rapid development along with wind power and photovoltaics.
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