Service Restoration of AC–DC Distribution Grids Based on Multiple-Criteria Decision Analysis

Modern distribution grids are transforming due to the increasing amount of load and generation based on DC technologies, whose interconnection is facilitated by upcoming AC-DC networks. Their fault management challenged new issues related power transferred among AC sub-networks. In light this, present paper proposes a novel Service Restoration (SR) algorithm, specifically tailored for grids, that optimizes re-energization establishing priorities disconnected bus groups computing, as candidate solutions, hierarchical combinations normally open closed switches. To overcome limitations existing approaches, Multiple Criteria Decision Analysis (MCDA) proposed combine objectively prioritize different SR goals (i.e., use telecontrolled switches, minimization losses, applicability solutions in defined time horizon), ultimately make grid operator benefit from possibility flexibly tune operational objectives. The algorithm allows effectively discriminating competing i.e. whence how re-energize buses, complies with requirements field implementation. results prove crucial role sub-networks, associated control injection converters, enhancing improving its targets number re-energized loads. Ultimately, effect MCDA comparison parameters outcomes quantitatively investigated via global sensitivity analysis, adoption recommended supporting