摘要
在光伏并网发电应用中需要逆变器具有稳定、快速、高效等特点,以实现并网发电系统的高效节能运行。本文基于电网电压定向矢量控制方法,针对三相光伏逆变线路,提出了一种新型的双闭环控制策略,以改善光伏并网系统的动态性能,降低并网的谐波畸变率,实现光伏发电系统的高效运行。大量的理论仿真和系统实验充分验证了文中所述并网控制策略的可行性和有效性。
In the photovoltaic grid-connected power generation applications,the inverters are supposed to be stable,fast,and efficient so as to achieve the efficient and energy-saving operations of the grid-connected power generation systems.Based on the grid voltage directional vector control method,a new type of double closed-loop control strategy for three-phase photovoltaic inverter lines is proposed to improve the dynamic performance of the photovoltaic grid-connected systems,to reduce the harmonic distortion rate of the grid connection,and to achieve the photovoltaic power efficient operation of the system.A large number of theoretical simulations and system experiments have been conducted,which fully verify the feasibility and effectiveness of the grid-connected control strategy presented in this paper.
作者
綦慧
高翔
QI Hui;GAO Xiang(Faculty of Information Technology,Beijing University of Technology,Beijing 100124,China)
出处
《电气传动自动化》
2019年第6期1-8,共8页
Electric Drive Automation
关键词
光伏
逆变器
空间矢量控制
电流谐波
photovoltaic
inverter
space vector control
current harmonic
