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Determination of harmonic current contributions based on robust state estimation        
Yazarlar
Dr. Öğr. Üyesi Erhan SEZGİN Dr. Öğr. Üyesi Erhan SEZGİN
Kafkas Üniversitesi, Türkiye
Murat Göl
Orta Doğu Teknik Üniversitesi, Türkiye
Özgül Salor Durna
Gazi Üniversitesi, Türkiye
Özet
In this paper, a state estimation based method is proposed to determine harmonic current contributions of plants supplied from a point of common coupling (PCC). This work mainly aims to reduce gross error of capacitive voltage transformer (CVT) measurements at harmonic frequencies using robust weighted least absolute value (WLAV) state estimation method, which provides the optimum state estimates for harmonic voltages in the presence of a redundant enough measurement set. Estimated harmonic voltages are then used to solve the harmonic current contribution problem based on superposition theorem. It has been shown that the proposed method can provide optimum harmonic estimates when CVTs are used. The use of the proposed method with proper measurement placement makes resistive-capacitive voltage transformers (RCVTs) redundant. Results of the proposed method are comparable with measurements of RCVTs, which have the disadvantages of having high costs and being cumbersome to install.
Anahtar Kelimeler
Harmonic current contribution | power quality | state estimation | weighted least absolute value estimation
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
Dergi ISSN 1300-0632
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2018
Cilt No 26
Sayı 1
Sayfalar 307 / 0
Doi Numarası 10.3906/elk-1607-143
Makale Linki http://online.journals.tubitak.gov.tr/openDoiPdf.htm?mKodu=elk-1607-143
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Determination of harmonic current contributions based on robust state estimation

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