Aggregation of Component-Based Grid-Feeding DER and Load Models for Simulation of Microgrid Islanding Transients

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Samenvatting

The reliability of distribution networks can be improved by islanding of part of the network when a short-circuit fault occurs. The voltage and frequency stability during transient can be evaluated with time-domain simulations using componentbased DER and load models. However, simulations with this type of models have a relatively high computational burden which constrains periodical stability analysis of microgrids. This paper proposes an aggregation methodology which significantly decreases the computation time of fault-initiated islanding simulations with component-based models, while maintaining the nonlinear dynamics. The methodology is first validated by directly comparing the original and equivalent models during large voltage and frequency transients. Secondly, a fault-initiated islanding case study of a residential distribution network is performed. For both validations, a sensitivity analysis of model parameters and voltage variations is performed. The results indicate the methodology preserves the dynamics of DERs and loads, while significantly reducing the computational time.
Originele taal-2Engels
TitelProceedings of the 21st Power System Computation Conference (PSCC)
StatusGepubliceerd - 2020
Evenement21st Power Systems Computation Conference (PSCC 2020) - Porto, Portugal
Duur: 29 jun. 20203 jul. 2020

Congres

Congres21st Power Systems Computation Conference (PSCC 2020)
Land/RegioPortugal
StadPorto
Periode29/06/203/07/20

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