Frequency dependent DC voltage droop control for hybrid energy storage in DC microgrids

Power Allocation Strategy for Urban Rail HESS Based on Deep Reinforcement Learning Sequential Decision Optimization

“…In rule-based HESS energy management strategies, it is often to use the given voltage or power as reference, for example, rule-based PI control [13] and filter-based control [14] [15]. The former has the advantages of being easy to implement and deal with the power constraints of the battery and ultracapacitor while the latter is able to readily achieve power allocation through frequency decomposition.…”