TY - JOUR
T1 - Adequacy Evaluation of an Islanded Microgrid
AU - Kjær, Martin
AU - Wang, Huai
AU - Blaabjerg, Frede
PY - 2021/9/25
Y1 - 2021/9/25
N2 - The reliability of power converters has been extensively examined in terms of component-and converter level. However, in case of multiple generation units, the evaluation of the performance of power systems requires system-level modeling. This paper aims to merge the prior art of reliability modeling of power converters with the adequacy evaluation of power systems through an extensive design and evaluation analysis of a microgrid based case study. The methodology proposed in the paper integrates the device-level analysis into the domain of the conventional power system reliability analysis while outlining the steps needed to deal with non-exponential distributed failures of power electronic-based generation units. A replacement policy of the power electronic-based units is adopted by means of evaluating the system risk of not supplying system loads, and, finally, an approach on how to ensure a desired replacement frequency is outlined.
AB - The reliability of power converters has been extensively examined in terms of component-and converter level. However, in case of multiple generation units, the evaluation of the performance of power systems requires system-level modeling. This paper aims to merge the prior art of reliability modeling of power converters with the adequacy evaluation of power systems through an extensive design and evaluation analysis of a microgrid based case study. The methodology proposed in the paper integrates the device-level analysis into the domain of the conventional power system reliability analysis while outlining the steps needed to deal with non-exponential distributed failures of power electronic-based generation units. A replacement policy of the power electronic-based units is adopted by means of evaluating the system risk of not supplying system loads, and, finally, an approach on how to ensure a desired replacement frequency is outlined.
KW - Adequacy modelling
KW - Distributed generation
KW - Intermittent renewable energy generation
KW - Microgrids
KW - Power electronics
KW - Risk evaluation
UR - http://www.scopus.com/inward/record.url?scp=85115810701&partnerID=8YFLogxK
U2 - 10.3390/electronics10192344
DO - 10.3390/electronics10192344
M3 - Journal article
SN - 2079-9292
VL - 10
SP - 2344
EP - 2370
JO - Electronics
JF - Electronics
IS - 19
M1 - 2344
ER -