The excess electricity from wind energy cannot be stored with capacitors because the cost is too high and the technology for capacitor energy storage is not yet mature. At present, supercapacitors are still concept products, with limited application range and cost constraints that prevent them from being used on a large scale.
1. Advantages and disadvantages of wind powerWind energy resources are large in quantity and high in quality, and wind power has outstanding advantages. As a clean energy source, wind energy is environmentally friendly and pollution-free. Wind power generation does not damage the environment and is very friendly to ecological development and natural landscapes. Wind power generation has unique advantages in various power generation methods. Building a wind farm can be said to be a once-and-for-all success and a huge profit. However, the shortcomings are also obvious. The wind force is unstable and unpredictable, the voltage emitted fluctuates, and the power output by the wind turbine is also unstable, which affects the power quality after being connected to the grid. Voltage fluctuations affect industrial and agricultural production. In order to reduce the negative impact on production and life after wind power is connected to the grid, wind power generally needs to be equipped with battery packs, rectifiers and inverters.
2. Capacitor storageCapacitors used to store electrical energy are called supercapacitors, also known as gold capacitors. Gold capacitors are an electrochemical component developed in the 1970s and 1980s for storing electrical energy. Unlike batteries, no chemical reaction occurs during the process of storing electrical energy. Its charging and discharging principle is the same as that of an ordinary capacitor, using two plates to absorb equal amounts of different charges.
The special thing about supercapacitors is that through the activated carbon porous electrode and electrolyte structure, the capacitor produced has a very large capacity and can accommodate a large amount of charge. Compared with conventional batteries, supercapacitors charge extremely quickly and have strong high-current discharge capabilities. However, due to cost constraints and technical reasons, they cannot yet be promoted and used on a large scale. Therefore, it is impossible to store electrical energy for wind power generation.
In summary, wind power, as a clean and environmentally friendly power generation method, has both advantages and disadvantages. Although supercapacitors have great advantages in storing electric energy, the technology is not yet mature enough to be widely used on a large scale. Therefore, it cannot be used for energy-saving storage of wind power.
The difference between offshore wind power distribution and storage and independent energy storage
Preparation work, charging preparation, charging process, testing and evaluation.
1. Before conducting the full test, the energy storage equipment needs to be inspected and prepared to ensure the normal operation, safety and reliability of the equipment.
2. Connect the wind power generation system to the energy storage equipment, ensure that the connection lines are correct, and start the wind power generation system to start generating electricity.
3. When the battery of the energy storage device reaches a fully charged state, the full test is completed. At this time, the power generation of the wind power generation system is stopped and the charging connection is disconnected.
4. After the full test is completed, test and evaluate the energy storage equipment, record the relevant data during the full test, and analyze it.
1. Function: The offshore wind power distribution and storage project is to improve the renewable energy consumption capacity of offshore wind power, reduce the impact on the power grid, and improve the stability of wind power generation, while the independent energy storage project is does not depend on a specificEnergy storage systems based on energy types or power generation methods can be dispatched according to grid needs to improve the stability and security of the grid.
2. Scale: The scale of offshore wind power distribution and storage projects is usually large to meet the volatility and intermittency of wind power generation, while the scale of independent energy storage projects can be adjusted according to specific needs, ranging from small-scale It can be realized from household energy storage systems to large-scale grid-side energy storage systems.
3. Operation method: Offshore wind power distribution and storage projects are usually operated together with wind power projects, with wind power development companies assuming construction and operation responsibilities, while independent energy storage projects can be constructed and operated by different investment entities, such as Power grid companies, power generation companies, energy service companies, etc.