Although most areas of our country have been able to get electricity to every household, in some remote areas, due to various natural conditions, these places still cannot use electricity. With the emergence of small wind turbines, it has solved the problem of electricity difficulties in remote mountainous areas. This equipment is not large in size and can be transported in standard containers. The initial design is to provide low-cost energy for people in mountainous areas and realize a more feasible power supply scheme.
The installation process of small wind turbines is not cumbersome. What’s even worse is that a technician can complete the installation and commissioning of the equipment in a relatively short period of time. The maintenance of the equipment also only needs to be carried out on the ground. In addition, it is mainly Yilin wind energy, which will not cause environmental pollution, and the cost of power generation is much lower than commercial electricity, diesel power generation or even solar power generation. Ordinary wind turbines have low power generation efficiency, and no cost advantage is felt after use. Although the cost of large-scale wind power generation equipment is not very high, it requires a certain amount of capital to be invested in V installation and transportation, so it is not suitable for use in remote areas with low population density.
Whether it is a factory in the mainland or a family house, the use of small wind turbines is relatively co-located, which is simple to install and low in maintenance costs. Not enough. If the working environment of small wind turbines is relatively bad, they need to be stolen and maintained frequently. In particular, it is necessary to confirm whether the tower is firm or not. In the early stage of installation, and when experiencing strong winds, it is a period that requires special attention. In addition, check whether the cables connecting the various components are damaged. After all, this problem will have a relatively direct impact on whether the electrical energy generated by the device can be smoothly converted into alternating current.
In fact, for vertical-axis wind turbines, we found that the most common feature is that when it changes the direction of the wind, it will wilt against the wind, while traditional horizontal-axis wind turbines have to face the wind. So such a comparison is very A big advantage, its appearance actually makes the structure of this design more scientific, simple but not simple, incorporates strong high-tech power, and can greatly reduce the impact of the wind wheel on the wind. Gyro force.
We found that the rotation axis of the wind wheel of a vertical axis wind turbine is not parallel to the wind direction, but 90 degrees perpendicular to the ground, or the direction of the airflow. Of course, there are several types. For example, there is a wind wheel made of a flat plate and a cup. This kind of device is a pure resistance device. Therefore, from the perspective of classification, vertical axis wind turbines are mainly divided into two types, one is the resistance type, the other is the lift type, and the resistance type vertical axis wind turbine is caused by air flowing through the blades. It produces a kind of resistance, which is used as a driving force, but the lift type is different. It is driven by lift.
Rujie said that the two kinds of effects are of course different. Because we found that when the blades are effectively rotating, when the speed increases and the resistance decreases, the effect of lift will be more obvious. Therefore, the efficiency of the lift-type vertical axis wind turbine is of course much higher than the resistance. Type. When we use vertical-axis wind turbines, we must be clear about which type is more suitable for us, so that we can make the machine play the most effective and improve efficiency.
Post time: Aug-13-2021
