Novel Rate-Limited Droop Control for DC Distribution with Impulsive Loads

This paper presents a novel de voltage droop control strategy for systems with a mix of power generation, energy storage, and impulsive loads. The proposed controls protect generators from damaging impulsive loading while also providing for excellent regulation of the distribution bus voltage and ensuring robust power sharing among bus-tied sources. The method can be used without communication but does accommodate commandable power sharing ratios and commandable energy storage charge and discharge rates if communication is available. The proposed method is validated in a simulation study using switch-averaged power converter models and fully discretized digital controls.