Inrush Current Management During Medium Voltage Microgrid Black Start With Battery Energy Storage System

This paper addresses the black start of medium voltage distribution networks (MV-DNs) by a battery energy storage system (BESS). The BESS consists two-level source inverter interfacing MV-DN which has limited overcurrent capability. On other hand, normally includes several step-up and step-down transformers that are drawing sympathetic inrush current in energizing stage. Therefore, major difficulty to perform during island operation lies fact simultaneous control network its output current. presents two approaches for order start. proposed schemes consist droop, loops stationary reference frame. droop loop is used generate reference. An intermediate inner designed regulation, generation as well tracking, respectively. New modifiers included into limit experimentally tested Ingå Finland 1 MVA BESS, their performance compared terms value quality. obtained results prove both methods able feed load with fixed steady-state transformer considering limit.