How to combine wind turbines and photovoltaic panels?

The combination of wind turbines and photovoltaic panels, the so-called "wind solar hybrid system", is a strategy for effectively utilizing renewable energy.

Working principle

Wind power generation principle

The wind is used to drive the windmill blades to rotate, and then the speed of rotation is increased by the speed increaser to drive the generator to generate electricity. According to windmill technology, it is possible to start generating electricity at a breeze speed of about three meters per second (the degree of breeze).

Photovoltaic power generation principle

The photovoltaic effect of the semiconductor interface is used to directly convert light energy into electrical energy. When sunlight shines on the photodiode, the photodiode will convert the sun's light energy into electrical energy and generate current.

Combination method

System composition

The wind solar hybrid system generally includes wind turbines, solar cell arrays, controllers, battery packs, inverters, cables and supports, and auxiliary parts.

Connection method

Photovoltaic panels and wind turbines are both independent power generation methods. They are not directly connected to each other, but the inverter, a key device, can be used to connect the two. The function of the inverter is to convert the direct current of photovoltaic panels and wind power systems into alternating current so that the electricity can be transmitted to the power grid. In practical applications, multiple photovoltaic panels and wind turbines can be connected to one inverter to further improve power generation.

Advantages

Strong complementarity

Wind turbines and photovoltaics panels complement each other. Photovoltaic power generation is large during the day, while wind energy dominates when the wind is strong or at night when photovoltaics cannot generate power. From the perspective of output power, the wind solar hybrid system has good complementarity.

Improve overall power generation efficiency

The combined use of wind solar hybrid system can make full use of their power generation advantages at different times and under different conditions to improve the overall power generation efficiency.

In summary, the combined use of wind turbines and photovoltaic panels is an effective way to improve the overall power generation efficiency. In practical applications, it is necessary to fully consider factors such as system composition, connection method, safety risks and maintenance costs to ensure the stable operation and efficient power generation of the system.