In a bay or tidal estuary, you can see the sea or river fluctuating twice a day, usually called tide in the morning and sunseeker at night. Tide is the periodic movement of seawater under the tidal force action of the moon and the sun. At high tide, a large amount of seawater flows in, with great kinetic energy; With the gradual increase of water level, kinetic energy is converted into potential energy. At low tide, sea water rushes home, and with the gradual decline of water level, potential energy is converted into kinetic energy. The kinetic energy and potential energy formed by seawater in the ebb and flow of tides belong to tidal energy. Tidal power generation is to use the rise and fall of tides to drive turbines, and then turbines drive motors to generate electricity. Tidal power generation is a conversion process that converts tidal energy of water into mechanical energy, then into electrical energy, and then transmits current to electrical equipment through electrical energy conversion and transmission and distribution equipment. With the decrease of traditional fossil energy such as coal, oil and natural gas, the energy shortage is becoming more and more serious. Abundant resources, large reserves and renewable tidal power generation are increasingly favored.