Impact of load sharing schemes on the stability delay margins computed by Rekasius substitution method in load frequency control system with electric vehicles aggregator
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The impact of load sharing between the electric vehicles (EVs) aggregator and theconventional generator on stability delay margins in a two-area load frequencycontrol (LFC) system is investigated in this work. A frequency-domain Rekasiussubstitution method is used to compute stability delay margins for different valuesof proportional-integral (PI) controller gains. The proposed method computes com-plex roots on the imaginary axis of the quasi-characteristic equation. The substitu-tion first converts the quasi-characteristic equation of the LFC with EVsaggregator (LFC-EVs) system including delay-dependent exponential terms intoan ordinary polynomial. Then, the Routh–Hurwitz stability method is applied tofind those imaginary roots and the corresponding stability delay margins. Thequalitative impact of different sharing schemes between the conventional genera-tor and EVs aggregator and the impact of EVs gains on stability delay margins arethoroughly analyzed, and the results are validated by time domain simulationsand quasi-polynomial mapping-based root finder algorithm. It is observed that forany given PI controller gains, stability delay margins decrease when the participa-tion of EVs into the frequency regulation increases.
Açıklama
Anahtar Kelimeler
communication delays, electric vehicles aggregators, frequency regulation, load sharingSchemes, PI controller, stability delay margin
Kaynak
RESEARCH ARTICLE
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
31
Sayı
12884
Künye
Naveed, A., Sönmez, Ş., & Ayasun, S. (2021). Impact of load sharing schemes on the stability delay margins computed by Rekasius substitution method in load frequency control system with electric vehicles aggregator. International Transactions on Electrical Energy Systems, 31(5), e12884.
