1, hydraulic turbine
Hydraulic turbine is the core equipment of hydropower generation, which converts water energy into mechanical energy by using the power of water flow, and then drives the generator to generate electricity. According to the different water flow modes and characteristics, hydraulic turbines can be divided into two types: impact type and impact type. Impulse turbine is suitable for relatively stable water flow, while impulse turbine is suitable for relatively high-speed water flow.
2. Generator
Generator is the key equipment to convert mechanical energy into electrical energy. In hydropower generation, the generator is connected with the turbine, and the rotor of the generator is driven to rotate by the rotation of the turbine, thus generating electric energy. Generator usually adopts coil and magnet structure. When the coil rotates, it generates current, while the magnet is responsible for generating magnetic field.
3. Managers
Governor is an important equipment to control the speed and output power of hydraulic turbine. It can automatically adjust the rotating speed and power output of hydraulic turbine according to the demand and load of power grid, and maintain the stable operation of power grid. Governor is generally composed of induction mechanism, control mechanism and executive mechanism, which can realize accurate control of turbine speed and power.
Hydroelectric power has the following main benefits:
1. Renewable energy: hydropower uses the abundant water resources on the earth, which is renewable and will not be exhausted like fossil fuels. Therefore, hydropower is a kind of sustainable energy, which helps to reduce the impact on the environment.
2. Low-carbon emission: Hydroelectric power generation will not produce a lot of greenhouse gases such as carbon dioxide, and its impact on the environment is relatively small. Compared with fossil fuel power generation, hydropower is more environmentally friendly and helps to slow down the trend of global warming.
3. Peak regulation capacity: Hydroelectric power generation has good peak regulation capacity, which can adjust power output in a short time to meet the load demand of power grid. This is of great significance to maintain the stable operation of the power grid and meet the needs of users.
4. Regional development: The construction of hydropower stations can promote regional economic development, increase employment opportunities and improve local infrastructure and living conditions. At the same time, hydropower can also provide a stable power supply for the local area and promote the development of industry, agriculture and tourism.