中文摘要：

海洋潮流能发电转换装置对于解决众多岛屿的无电问题，改善海岛居民条件，增强海防建设具有重要意义．设计了一种矩形潮流能水轮机装置，建立了基于动量定理的矩形水轮机单盘面多流管方法，计算不同参数情况下矩形水轮机的水动力特性，分析各参数对水轮机性能的影响．总结了水轮机密实度、安装摆角和速比对水轮机水动力特性的影响规律，并给出了矩形水轮机的优选设计参数的建议范围．研究工作可以为矩形潮流能发电站的工程设计提供参考．

英文摘要：

The research on the power-generating switch equipment by utilizing marine tidal current energy has for providing electric energy to many islands, improving the living conditions of isolated islands and enhancing the sea defense. In this paper, the authors designed a kind of rectangular tide current turbine, established the SDMT meth- od specific to the turbine and based on momentum theorem, calculated the hydrodynamic properties of the rectangu- lar turbine under different parameters conditions, analyzed the influence caused by the parameters to the perform- ances of turbine, summarized the law of influence caused by the solidity, installation swing angle and speed ratio to the hydrodynamic properties, gave the suggested scope of the optimized design parameters of rectangular turbine. The research can provide references for the engineering design of rectangular tide energy power station.