Measurement-based Component-level Load Modeling for Evaluation of a Current-suppressing Loading Scenario for Microgrid Black Start Events

Representation of residential loads in both academia and industry is mainly limited to static load models without the consideration of the startup behavior where a high level of inrush current can be observed. In normal grid operation, it can be assumed that inrush currents of different appliances occur in distribution to time while during a black start event, all inrush currents get aggregated, pushing an inverter-dominated microgrid to its current limits and consequently nominating a second blackout. Based on current measurements, this paper presents a component-level load modeling approach applied to 27 typical household appliances. An aggregation of these load models is then used in a proposed loading sequence that effectively suppresses the transient load current at the time of a black start.