基于液压传动系统的风电并网静态电压稳定问题研究

摘要

Voltage stability has been a bottleneck to further development of wind power. However,the wind power systems based on the hydraulic drive system,due to its stability in the output and lightweight and flexibility, helps to address the bottleneck. Though modeling and taking into consideration of the work characteristics,this paper simulates and studies the stability of the output of the hydraulic drive wind turbine under various wind speeds. In addition,on the basis of considering the operating characteristics of the induction generator, the improved continuous flow algorithm is used to analyze the static voltage stability with wind power integrated with power grid.%风电并网的电压稳定性问题是一直制约风电产业进一步发展的瓶颈。基于液压传动系统的风电系统，利用液压传动系统具有的输出稳定，轻便灵活等特点，有效地解决了风电发展的瓶颈问题。通过对基于液压传动系统的风电系统进行建模，考虑基于液压传动系统风力发电机组的液压系统的工作特性，仿真研究风速变化下基于液压传动系统的风力发电机输出功率的稳定性。并且在考虑异步发电机的工作特性基础上，采用改进的连续潮流算法来分析基于液压传动系统的风电并网电压静态稳定性。