High School Geography The reason why Pingtan wind power can complement hydropower is

Introduction High School Geography The reason why Pingtan wind power generation can complement hydropower is that Pingtan is located in a coastal monsoon area with large seasonal changes in precipitation, so hydropower is affected during the dry season (autumn and win

High School Geography The reason why Pingtan wind power can complement hydropower is

Pingtan is located in a coastal monsoon area with large seasonal changes in precipitation, so hydropower is affected during the dry season (autumn and winter). The biggest disadvantage of wind power generation is its instability. The so-called complementarity means that in seasons with strong winds, when the flow is small and water and electricity are insufficient, wind and electricity are strengthened. Therefore, the complementary reason should be that the wind is strong and the runoff is small in autumn and winter. Therefore, choose B

One revolution of wind power generation is about 0.1 kWh.

Wind power generation: At rated speed, a 100kw wind turbine generates 0.1 kWh of electricity per cycle. When the wind energy is sufficient and stable, a 2MW direct-drive wind energy generator can It can generate 2000 degrees of electricity every 60 minutes. Among them, each rotation of the fan blade takes 3.5 seconds. Wind turbines from 50W to 300W are 12V, and there are 24V wind turbines in the 300W-800W range.

A wind turbine is an electrical device that converts wind energy into mechanical work. The mechanical work drives the rotor to rotate and finally outputs alternating current. Its working principle is relatively simple. It uses the sun as the heat source and the atmosphere as the working principle. The heat energy of the medium is utilized by the generator. As a power source that replaces human and animal power, it plays an important role in the development of productivity. Wind power generation often has no fuel problems and does not produce air pollution.

Disadvantages of wind power

1. Instability: The instability and unpredictability of wind speed is a major challenge for wind power. Changes in wind speed will cause fluctuations in power generation, which will affect the stability of the power grid. In addition, the seasonality of wind speeds and geographic location also affect the efficiency and scale of wind power generation.

2. High construction and maintenance costs: Although wind power is a type of renewable energy, its construction and maintenance costs are still high. Wind power generation requires equipment such as large generators and towers, which are expensive to manufacture and install. In addition, since wind power equipment operates in harsh environments, it requires frequent maintenance and repairs, which also increases its operating costs.

3. Geographical location restrictions: Wind power generation requires sufficient air flow and suitable wind speed, so the selection of its geographical location is very important. Suitable geographical location can improve the efficiency and scale of wind power generation, but it is also limited by geographical location. For example, it is difficult to establish wind power stations in mountainous areas, oceans and other areas.

The above content refers to Baidu Encyclopedia-Wind Power

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