Water converting the gravitational potential energy of the water into kinetic energy drives out the turbine, and the turbine begins to spin. If we connect the generator to the turbine, the generator can start producing electricity. If we raise the water level. By flushing the turbine, we can see that the speed of the turbine increases. Therefore, it can be seen that the greater the water level difference, the greater the kinetic energy obtained by the turbine, and the greater the electrical energy that can be converted. is the basic principle of hydropower.
The energy conversion process is as follows: the conversion of the gravitational potential energy of the upstream water is the kinetic energy of the flow 'water. When the water flow passes through the turbine, it is generated. Transfers kinetic energy to the steam turbine. The turbine drives the generator to rotate and converts kinetic energy into electrical energy.that. So it is the process of converting mechanical energy into electrical energy.
Due to the differences. natural conditions of hydroelectric power plants, water The capacity and speed of the turbine generator set vary greatly. Usually, small hydrogenerators and high-speed hydrogenerators driven by impact turbines mainly adopt horizontal structures, while large and medium-speed generators mainly adopt vertical structures. Since most hydroelectric plants are located far from cities, they usually have to power the load via long transmission lines. Therefore, the power system imposes higher requirements on the operational stability of the hydrogenerator: the engine parameters must be carefully selected; The rotational inertia requirement is important. Therefore, the appearanceof a hydrogenerator is different from that of a steam turbine generator. Its rotor has a large diameter and a short length. The hydrogenerator unit requires a shorter start-up and connection time to the network. and its operating programming is flexible. In addition to general electricity generation, it is particularly suitable as a peak shaving unit and as an emergency backup unit.