What is photovoltaic wind power

Introduction What is photovoltaic wind power? Generally, wind power plants have relatively sufficient sunlight due to location reasons. In order to better utilize clean energy, photovoltaic power generation will be used together with wind power generation.

What is photovoltaic wind power

Generally, wind power plants have relatively sufficient sunlight due to location reasons. In order to better utilize clean energy, photovoltaic power generation will be used simultaneously with wind power generation. Simply put, photovoltaic power generation is the use of solar energy. Generate electricity. Photovoltaic wind power refers to the simultaneous use of wind energy and solar energy to generate electricity.

Which one is better, photovoltaic power generation or air power generation?

The impact of this proportion is as follows:

1. Wind power usually generates electricity in spring and The wind is strong in autumn, so the wind power generation will be relatively high in these two seasons, while in summer and winter, due to the weakened wind, the wind power generation will decrease accordingly; photovoltaic power generation is higher in summer and sunny days, because at this time The sunshine time is long and the solar radiation intensity is high. In winter and cloudy days, photovoltaic power generation will decrease.

2. The volatility of wind power and photovoltaic power generation is mainly affected by weather conditions, such as changes in wind speed, cloud cover, etc., which will lead to unstable power generation.

Wind power and photovoltaics have obvious seasonality and volatility

Wind power and photovoltaic power generation both have the common advantages of being clean, renewable and never exhausted. Compared with wind power generation, Photovoltaic power generation has more obvious advantages. Why do you say this? Mainly based on the following two points:

1. The cleanliness of photovoltaic power generation is relative, because the production of solar panels has the characteristics of high pollution and high energy consumption, and the manufacturing process is not environmentally friendly; while the cleanliness of wind power generation Cleanliness is absolute, which has obvious advantages over photovoltaic power generation!

2. After all, the energy distribution density of photovoltaic irradiation is small. To generate a large amount of electric energy, it takes up a huge area. Therefore, solar power stations generally occupy a relatively large area. A 1GW photovoltaic power station requires an area of ​​300-400 square meters. acres, so photovoltaic power stations are generally built in remote areas with vast land and sparsely populated land and barren land (it is impossible to build photovoltaic power stations on farmland in densely populated areas). Wind energy power generation facilities occupy a small area and have little impact on normal farming of farmland. Especially offshore wind power does not need to occupy land!

Wind power and photovoltaics have obvious seasonality and volatility, and the increase in the proportion of wind and photovoltaic power generation will affect the stability of the power system.

Wind power generation mainly relies on wind energy, a natural energy source. Since wind speeds in different regions are closely related to climate change, the supply of wind energy also has significant seasonality. For example, during active monsoon periods such as winter or spring, available wind resources will be more abundant; while in summer or other dry, less rainy environments, factors such as sandstorms may affect the availability of wind resources.

At the same time, some specific geographical locations (such as mountains) also have certain requirements for wind stability. This means that at different points in time, electricity production will ebb and flow. Although modern technology can smooth these fluctuations by storing excess electricity, there are still certain challenges and technical limitations. ?

On the other hand, the sunPhotovoltaic (PV) systems operate by converting light into electricity. However, the intensity of sunlight also changes with weather conditions, including cloud cover, daylight hours, and UV radiation intensity. This will affect the photoelectric conversion efficiency, thereby further affecting the stability of the power output.

The principle of wind power generation

The devices required for wind power generation are called wind turbines. This kind of wind turbine can be roughly divided into three parts: wind wheel (including tail rudder), generator and tower.

The wind wheel is an important component that converts the kinetic energy of the wind into mechanical energy. It is composed of several blades. When the wind blows towards the blades, aerodynamic force is generated on the blades to drive the wind wheel to rotate. The material of the paddle requires high strength and light weight, and is often made of fiberglass or other composite materials.

The iron tower is the structure that supports the wind wheel, rudder and generator. It is generally built relatively high in order to obtain larger and more uniform wind force and to have sufficient strength. The height of the tower depends on the impact of ground obstacles on wind speed and the diameter of the wind wheel. It is generally in the range of 6-20 meters.

The function of the generator is to transfer the constant rotation speed obtained from the wind wheel to the power generation mechanism through increased speed for even operation, thereby converting mechanical energy into electrical energy.

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