中文摘要：

提出一种将液压变量泵、双转子发电机和液压变量马达集成一体的电液发电机，并应用于风力发电中。利用AMESim和Matlab／Simulink软件建立风电机组的仿真模型进行联合仿真，仿真结果证明：通过控制电液发电机的液压变量马达排量可实现风电机组的变速恒频控制，控制系统简单、能保证并网时的电网友好性。同时，由于电液发电机采用液压传动，发电机电磁转矩的波动相对减小，可提高风电机组工作的稳定性。

英文摘要：

A new type electro-hydraulic generator was presented which could take the place of the existing wind driven generator in the wind power generation system. The simulation model of wind power generation system was built in the softwares AMESim and Matlab/Simulink and was used to proceed joint simulation. The analysis results showed that the variable velocity constant frequency control of wind power generation system can be achieved by governing the displacement of the variable motor which is a component of the electro-hydraulic generator. What＇ s more, the wind power generation system is characterized by the simple control system and grid friendliness. In additional, the electro- hydraulic generator adopting hydraulic transmission the electromagnetic torque of generator is relatively stable, which improves the stability of the wind power generation system when it runs.