摘要
【目的】规模化风电机组的并网运行增加了系统发生次同步振荡(sub-synchronous oscillation,SSO)的风险,针对此问题,深入分析了制氢系统对风电系统SSO特性的影响。【方法】首先,搭建双馈风电系统、串补输电系统和制氢系统模型;然后,在此基础上,根据制氢系统电解槽内部热动力和电化学动态特性,在PSCAD/EMTDC仿真平台建立制氢装置的电磁暂态模型;最后,将其加入到双馈风电经串补外送系统中进行时域仿真分析。【结果】制氢系统在特定的控制参数下会参与到系统的次同步振荡中,制氢系统加入到风电远距离输送系统能在一定程度上缓解并网系统SSO,从而提供一种解决SSO问题的新思路。【结论】制氢系统的投入提高了风氢耦合并网系统的阻尼,改善了系统稳定性。
[Objectives]The grid-connected operation of large-scale wind turbines increases the risks of subsynchronous oscillation(SSO)in power systems,to address these issues,this study conducts an in-depth analysis of the effect of hydrogen production systems on the characteristics of SSO of wind power system.[Methods]Firstly,the models of doubly fed induction generator system,series-compensated transmission system,and hydrogen production system are established.Building on this,based on the internal thermodynamic and electrochemical dynamic characteristics of the electrolyzer in the hydrogen production system,an electromagnetic transient(EMT)model of the hydrogen production device is established on the PSCAD/EMTDC simulation platform.Finally,it is integrated into a doubly fed induction generator with series compensation for external transmission to conduct time-domain simulation analysis.[Results]The hydrogen production system participates in the SSO of the system under specific control parameters.The integration of the hydrogen production system into the longdistance transmission system of wind power—as a clean energy solution—can mitigate SSO in the grid-connected system to a certain extent,thereby offering a new approach to addressing SSO issues.[Conclusions]The integration of the hydrogen production system improves the damping of the wind-hydrogen coupled grid-connected system,leading to improved system stability.
作者
鲁亚楠
徐涛
刘泽楠
LU Yanan;XU Tao;LIU Zenan(College of Electric Power,Inner Mongolia University of Technology,Hohhot 010051,Inner Mongolia Autonomous Region,China;Engineering Research Center of Large Energy Storage Technology,Hohhot 010080,Inner Mongolia Autonomous Region,China)
出处
《发电技术》
2025年第4期715-726,共12页
Power Generation Technology
基金
内蒙古自治区自然科学基金项目(2023LHMS05049)
内蒙古自治区直属高校基本科研业务费项目(JY20240014)。
关键词
新能源
氢能
风电机组
制氢系统
次同步振荡(SSO)
双馈风机
串联补偿
特征值分析法
时域仿真
new energy
hydrogen energy
wind turbines
hydrogen production system
sub-synchronous oscillation(SSO)
doubly fed induction generator
series compensation
eigenvalue analysis
time-domain simulation
