Research Progress in Tidal Current Energy Power Generation Device

Energy shortage and environment pollutes aggravate ceaselessly all over the world.As a green clean pollution-free renewable energy, tidal current energy has characteristics such as large reserves, wide distribution, predictability, little environmental pollution, etc. Development and utilization of tidal energy has important practical significance to ease the energy shortage and reduce the pollution of the environment.The western developed countries take the leading position in tidal current energy utilization, having entered early stage of commercialize.In this paper, the state of exploiting tidal current energy, the development of tidal current power generation and the related technical problems in tidal current energy development were introduced.The technical characteristics of different turbines were compared.Based on the technology and application comparative study, some suggests are given to the tidal current energy development and utilization in China.