摘要
带有差动调速机构的混合传动型风力机可在无需电力电子变频装置的条件下,采用同步发电机实现风电的友好并网消纳。为了进一步提高该新型机组的并网运行性能,结合逆推设计方法与滑模控制理论,提出了一种适用于混合传动型风力机发电单元的逆推滑模励磁控制方法。将扩张状态观测器与所提逆推滑模控制算法相结合,很好地补偿了控制系统中模型参数的不确定性及风轮/电网端扰动的影响;构建了李亚普诺夫判据,证明了控制系统的全局渐近稳定性。搭建了1.5 MW混合传动型风力机的仿真模型及半物理试验平台,并对所提控制方法的控制效果进行了对比验证研究。结果表明,在不同的风速条件及电网故障下,所提逆推滑模励磁控制方法可更好地提升混合传动型风力机的并网运行性能。
The hybrid drive wind turbine(HDWT) equipped with the speed regulating differential mechanism is able to employ synchronous generator to achieve friendly grid-connected consumption of wind power without power electronic frequency conversion devices. In order to further improve the grid-connected operation performance of the new type HDWT,combined with the backstepping design method and sliding mode control theory,a backstepping sliding mode excitation control method suitable for the HDWT generating unit is proposed. By combining the extended state observer with the proposed backstepping sliding mode control theory,the undesired influences of model parameter uncertainty in the control system and the disturbances from wind wheel and grid sides can all be well-compensated. The Lyapunov criterion is constructed and the global asymptotic stability of the control system is proved. The simulation model and semi-physical test platform of a 1.5 MW HDWT are built,and the control effect of the proposed control method is compared and verified. The results show that under different wind speed conditions and grid faults,the proposed backstepping sliding mode excitation control method can better improve the grid-connected operation performance of HDWT.
作者
王子威
尹文良
刘琳
彭克
李军徽
芮晓明
WANG Ziwei;YIN Wenliang;LIU Lin;PENG Ke;LI Junhui;RUI Xiaoming(School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255000,China;Key Laboratory of Modern Power Simulation and Control&Renewable Energy Technology,Ministry of Education,Northeast Electric Power University,Jilin 132012,China;School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)
出处
《电力自动化设备》
EI
CSCD
北大核心
2023年第3期117-123,共7页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(52005306)
山东省自然科学基金资助项目(ZR2020QE220)
东北电力大学现代电力系统仿真控制与绿色电能新技术教育部重点实验室开放课题(MPSS2022-02)。
关键词
风力发电
混合传动
励磁控制
滑模控制
逆推方法
扩张状态观测器
wind power generation
hybrid drive
excitation control
sliding mode control
backstepping method
extended state observer
