The application of vertical axis wind turbines has only become popular in recent years, and most of them are small wind turbines. The main application scenarios are also in some cities’ wind and solar complementary street lights or monitoring and landscape lighting. What is the future development direction of vertical axis wind turbines? I think the large vertical axis wind turbine is an important direction for the development of wind power technology in the future.
Based on the development of wind power technology, in history, everyone mistakenly believed that the power generation efficiency of vertical axis wind turbines was much lower than that of horizontal axis wind turbines. In recent years, with the progress of wind power theory, the actual wind farm Verification, as well as the development of large-scale fans, the advantages of vertical axis fans are becoming more and more obvious. Therefore, my country’s wind power manufacturing companies must not follow Western countries. Influenced by their misunderstandings, they still blindly develop horizontal axis wind turbines, which will inevitably bring crisis to future development. We must seize the current strategic opportunities. , To seize the technical commanding heights of vertical axis wind turbines, so as to occupy an advantageous position in the increasingly fierce market competition and the increasingly serious energy crisis, and achieve unconventional development.
The cost of blades of horizontal-axis wind turbines accounts for a very large proportion of the cost of the entire wind power system. To increase power generation, it is necessary to increase the sweeping area of the blades, that is, to increase the length of the blades, and the manufacturing cost of the blades is As the length of the wind blade increases, it increases to the third power. It means that the growth rate of wind blade manufacturing cost is far greater than the growth rate of output power. As the length of the wind blade increases, the investment cost will quickly exceed the expected profit, which greatly limits the horizontal axis wind power generation. The large-scale development of the machine.
The wind wheel of the vertical axis wind turbine can be developed in the horizontal direction, that is, linearly increasing the length of the supporting blade arm and the number of blades can increase the sweeping area of the wind wheel, so that the increased manufacturing cost varies with The increase in the radius of the wind wheel is linear, that is, the increase in the first power, and the increase in output power increases with the increase in the radius of the wind wheel in the second power, so the increase in output power is much greater than the increase in investment cost. In order to attract a lot of capital to enter the field of large-scale vertical-axis wind turbines, large-scale vertical-axis wind turbines are the future trend.
Post time: May-31-2021
