Current Sharing Based on Incremental Passivity and Unknown Load Finite Time Estimation for Multilevel Connected DC-DC Converters

摘要: The multilevel connected DC-DC converters system is considered a practical technology to increase the capacity and reduce voltage current stresses on power devices. In practice, mismatched parameters are inevitable, which increases challenge of output regulation sharing control. order conquer these difficulties, this paper investigates based incremental passivity control for converters. Combined with passivitybased (PBC), finite time estimator given improve robustness against load variations. proposed method results in linear law despite bilinear nature system. Moreover, analysis exhibits that stability independent inductor parameters. Furthermore, closedloop has been proved approach valid both nonlinear load. After introducing scheme, simulation experiments offered validate its fast transit response antidisturbance performance.