Adaptive Predefined-Time Backstepping Control for Grid Connected Photovoltaic Inverter  

作　　者：Jiarui Zhang Dan Liu Kan Cao Ping Xiong Xiaotong Ji Yanze Xu Yunfei Mu 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin,300072,China [2]State Grid Hubei Electric Power Research Institute,Wuhan,430077,China [3]State Grid Hubei Electric Power Co.,Ltd.,Wuhan,430077,China

出　　处：《Energy Engineering》2024年第8期2065-2083,共19页能源工程（英文）

基　　金：supported by the State Grid Corporation of China Headquarters Science and Technology Project under Grant No.5400-202122573A-0-5-SF。

摘　　要：The system performance of grid-connected photovoltaic(PV)has a serious impact on the grid stability.To improve the control performance and shorten the convergence time,a predefined-time controller based on backstepping technology and dynamic surface control is formulated for the inverter in the grid-connected photovoltaic.The time-varying tuning functions are introduced into state-tracking errors to realize the predefined-time control effect.To address the“computational explosion problem”in the design process of backstepping control,dynamic surface control is adopted to avoid the analytical calculations of virtual control.The disturbances of the PV system are estimated and compensated by adaptive laws.The control parameters are chosen and the global stability of the closed-loop is ensured by Lyapunov conditions.Simulation results confirm the effectiveness of the proposed controller and ensure the predefined time control in the photovoltaic inverter.

关 键 词：Photovoltaic inverter system backstepping technology predefined-time control adaptive control 

分 类 号：TM464[电气工程—电器]