Virtual resistor based DBVC and active damping method for DC bus stabilization of cascaded power converters system

Improved Adaptive Hamiltonian Control Law for Constant Power Load Stability Issue in DC Microgrid: Case Study for Multiphase Interleaved Fuel Cell Boost Converter

“…Subsequently, Ema et al [12] developed a sliding mode control for a buck converter under CPL; however, th key difficulty here is its sensitivity to excessive load variations. For other solution Cespedes et al [13] studied passive damping techniques using a supplementary LC filte Conversely, many active damping techniques have been studied to regulate the networ the "virtual inductor technique" proposed by Liu et al [14]; the "virtual resisto approach" studied by You et al [15]; and the "virtual impedance approach" proposed b Lu et al [16]. Among these nonlinear control schemes, the interconnection and dampin assignment passivity-based control (IDA-PBC, or the Hamiltonian Lyapunov control) ha also received attention in the last decade to address the CPL instability issue [17,18].…”

Stability Study and Nonlinear Analysis of DC–DC Power Converters With Constant Power Loads at the Fast Timescale

“…Simple and effective passive damping methods have been developed with usage of additional LC fliter [13], whereas these systems can be costly with increased weight. Alternatively, a variety of active damping approaches have been proposed to stabilize the system from the perspective of control by introducing 'virtual components', such as 'virtual inductor' [14], 'virtual resistor' [15] and 'virtual impedance' [16]. Other active stabilization techniques have also been presented to mitigate the instability issues which either applies the small-signal methods based on the state-space averaging models or the large-signal approaches based on the nonlinear models.…”