A 100-meter-high wind turbine collapsed in Yangzhou. What might have caused it?

The news of the collapse of a 100-meter-high wind turbine in Yangzhou triggered heated discussions. People have also speculated on the reasons for the collapse of this wind turbine. Whether the quality of the wind turbine meets the requirements is the most discussed topic. After all, if there are quality problems in such a large wind turbine, the consequences will be Very serious.

The reason why this generator collapsed. The first thing may be the quality problem of the wind turbine pole. The broken pole of this wind turbine does make people question its quality. Generally speaking, the strength of wind turbine poles is very strong. The collapse of the generator makes people doubt the quality of this pole. ;Secondly, it was caused by too much wind. Wind turbines may also collapse when encountering strong winds. After all, the wind turbine poles also have a certain endurance limit. If the wind intensity exceeds this limit, the generator will collapse;< strong>Finally, the installation is not standardized. When installing wind turbines, you need to strictly follow the installation process for construction and installation. If there are problems during the installation process, it will also cause the generator to collapse.

Whether the quality of the wind turbine is qualified or not is indeed an important factor leading to collapse. If there is a problem with the quality of the wind turbine, if the strength of the wind turbine cannot withstand relatively strong wind, it will cause The occurrence of collapse.

Although large wind power generators are designed with full consideration of the damage caused by wind power to the generator, after all, there is a limit to the wind power that a wind power generator can withstand. If this limit is exceeded, the wind power generator will also It couldn't bear it and collapsed.

The requirements for the installation and construction of wind turbines are very strict. During the construction and installation process, any mistakes and irregularities may cause the wind turbine to collapse and fail to operate normally when encountering strong winds. situation.

What is the maximum wind force that a 20kw wind turbine can withstand?

The wind is different every day, so wind power does not need to generate electricity every day to evaluate the power generation of a wind farm or a wind turbine. Generally, statistical methods are used to evaluate, that is, the average number of full-load hours per kilowatt of installed capacity per year (including four seasons). In other words, if a 1500kW wind turbine generates 3 million kWh of electricity a year, then 3000000/1500=2000 hours, then the full load hours of this wind turbine at this location is 2000 hours. A 50,000 kW wind farm generates 110 million kilowatt-hours of electricity a year, then 110,000,000/50,000=2,200. The full load hours of this wind farm are 2,200 hours. Generally speaking, the current relatively good wind farms are at full capacity every year.The hours can reach 2400-2500 hours (corresponding to the annual average wind speed of more than 7m/s), and generally it can reach 2200 hours (corresponding to the annual average wind speed of 6.8-7m/s). Under normal circumstances, those below 2000 hours will not be used for the time being. Development (corresponding to annual average wind speed below 6.4). The longer the wind turbine blades are, the greater the wind energy absorbed, but the smaller the wind resistance ability, so the blade length of the wind turbine must be selected according to different local wind conditions. Let’s just say this much first. The detailed study of wind power generation is increasingly full of content.

The voltage generated by current wind turbines is generally 690V. Transformed to 10kV or 35kV, transmitted to the substation and then boosted to 110kV (or 220kV, rarely).

The 100-meter-high wind turbine in Yangzhou collapsed and broke into multiple sections. What caused it?

The amount of wind force a wind turbine can withstand has little to do with the W number of the wind turbine itself. In other words, the wind resistance capacity of a 300W wind turbine and a 20KW wind turbine may be the same, but it is just the large wind turbine itself. Being large in size and relatively reliable, this has a greater relationship with the performance of the fan itself

The wind resistance of general fans is around 25M/S dynamically and around 50M/S statically

News that a 100-meter-tall wind turbine collapsed in Gaoyou Town, Yangzhou, Jiangsu Province, broke into several sections, aroused people's attention on the Internet. Although the specific cause of the collapse of the wind turbine is still under investigation. Officials have not yet given a clear reason. But netizens also gave their own guesses as to the cause of the collapse. Among them, being blown down by strong winds was the most likely cause of the collapse speculated by netizens.

The reason why this 100-meter-tall wind turbine collapsed. First of all, it was most likely blown down by the wind. The most likely reason for the collapse of this 200-meter-high wind turbine is that it was blown down by too much wind. After all, such a tall generator is likely to break and collapse when encountering strong winds; Secondly, power generation There is something wrong with the quality of the machine. Although every generator is tested for quality when it leaves the factory, there may be products with substandard quality entering the market, so substandard quality may also be a reason for the collapse of the generator; Finally, there is the issue of installation. Wind turbines also have very high requirements for installation. During the installation process, any mistakes and irregularities may cause problems during the use of the wind turbine.

On the day of the incident, the wind in Gaoyou Town was still very strong. Therefore, strong winds are the main cause of the wind turbine breaking and collapsing. After all, the wind power that each wind turbine can withstand is limited. If the wind is too strong, the generator may be blown over.

Although the generators that can enter the market have been tested, it is also possible thatGenerators with defective quality are flowing into the market. If the quality of the generator is not good, it is very likely that it will break and collapse due to quality problems during use.

Since wind turbines have very high requirements for installation, if such a tall generator must follow the installation process and specifications step by step, if there are any small mistakes and loopholes during the installation process, it may cause wind damage. The generator collapsed.