Equivalent SM Controller for Load-Sharing and Dynamic Performance in a DC Microgrid Application

Load-sharing and voltage regulation are key challenges in low dc microgrid systems. Droop-based decentralized control methods used to grids which cannot achieve these simultaneously due unequal voltages load power variations. Centralized schemes can using high bandwidth communication. However, the failure of a single central controller degrade performance reliability. In addition, cascaded proportional-integral (PI) type controllers current loop each electronic converter. These suffer stability show slower dynamic responses. Furthermore, parameters be optimized for different operating conditions. To address challenges, distributive method an equivalent sliding mode (SM) utilizing communication is proposed this paper. The improves reliability achieves sharing simultaneously. SM, both operate parallel configuration response shows all analyze, system model developed, existence conditions verified. Detailed simulations carried out steady-state transient performance. presented results effectiveness scheme.