分析了液压蓄能式波浪能转换器(WEC)的工作原理和优势;根据液压马达和永磁同步发电机的数学方程推导出了发电系统的 4 个基本特性，分析了蓄能器压力和发电机负载对转速、电压和功率的影响;针对液压蓄能式 WEC 发电系统的两种工作模式——恒电阻模式和恒转速模式，建立了液压蓄能式 WEC 发电系统的 Matlab/Simulink仿真模型，并进行了仿真实验，结果验证了关于液压蓄能式 WEC 发电系统特性推理的正确性．

In this paper,the working principle and advantages of hydraulic energy- storage wave energy converter(WEC) are analyzed,and four basic characteristics of the power generation system with hydraulic energy- storageWEC are deduced according to the mathematical equations of the hydraulic motor and the permanent magnet synchro-nous generator.Then,the effects of accumulator pressure and generator load on the motor and the generator speed,the generator voltage and the generator power are analyzed.Moreover,two working modes of the hydraulic powergeneration system,namely the constant resistance mode and the constant speed mode,are taken into consideration,and a corresponding simulation model is established based on Matlab/Simulink for the power generation system.Finally,some simulation experiments are carried out,and the results verify the correctness of the deduced charac-teristics of the hydraulic power generation system.