年发电量是评价潮流能发电装置经济性能的一个重要指标，而启动性能是决定垂直轴潮流能水轮机年发电量的重要因素。本项目拟采用数值模拟和物理实验相结合的方法，研究垂直轴潮流能水轮机的启动性能，建立涵盖流体推动力矩、刚体惯性力矩、发电机磁抗力矩和机械阻尼力矩耦合的动力学平衡模型，模拟垂直轴水轮机瞬态启动的全过程；分析各参数对启动性能的影响规律及影响机理，揭示静态分析方法和动态分析方法在启动性能评价中的本质区别；提出影响启动性能关键因素的评价方法，给出水轮机启动性能的优化方案；通过物理模型实验验证数值模型的准确性和精度，验证关键因素的影响规律和准确性，验证启动性能的优化效果。.本项目融合了理论力学、流体力学、计算数学和机械电子工程等学科的知识来建立垂直轴潮流能水轮机启动性能的耦合动力学模型，研究成果对于提高垂直轴潮流能发电装置的年发电量，掌握关键设计技术，发展海洋能装备产业具有重要意义。

Annual power generation is an important indicator to evaluate the economic performance of a tidal power station, and start-up performance is an important factor to determine the annual power generation of a Vertical Axis Hydro Turbine (VAHT). In this project, numerical simulation and physical experiment are both proposed to be used to study the start-up performance of VAHT. A dynamic equilibrium model which involves in fluid drive torque, rigid body inertia moment, generator magnetic torque and mechanical dynamic damping torque is established to simulate the whole transient start-up process of VAHT to analyze the mechanism and rules effected by variable parameters and reveal the difference between static analysis method and dynamic analysis method in the evaluation of start-up performance. Further, the evaluation method of the key factors affecting the start performance and the optimization scheme of the start performance of VAHT are proposed. The physical model experiments are carried out to verify the accuracy and precision of the numerical model, the impact law and accuracy of key parameters and the optimization results of start-up performance..This project integrates knowledge of theoretical mechanics, fluid mechanics, computational mathematics, and mechanical and electronic engineering to establish a coupled dynamic model of the start-up performance of VAHT. The findings will contribute to improve annual power generation and master key design technologies of vertical axis tidal current turbine, and develop the industry of ocean renewable energy equipment.