State estimation based determination of harmonic current contributions of iron and steel plants supplied from PCC
Yazarlar (3)
Dr. Öğr. Üyesi Erhan SEZGİN Kafkas Üniversitesi, Türkiye
Prof. Dr. Murat Göl Middle East Technical University (Metu), Türkiye
Özgül Salor
Gazi Üniversitesi, Türkiye
Bildiri Türü Tebliğ/Bildiri Bildiri Dili İngilizce
Bildiri Alt Türü Tam Metin Olarak Yayınlanan Tebliğ (Uluslararası Kongre/Sempozyum)
Bildiri Niteliği Web of Science Kapsamındaki Kongre/Sempozyum
DOI Numarası 10.1109/IAS.2015.7356880
Kongre Adı 50th IEEE Industry Applications Society Annual Meeting
Kongre Tarihi 18-10-2015 / 22-10-2015
Basıldığı Ülke Amerika Birleşik Devletleri Basıldığı Şehir Dallas, Texas.
Bildiri Linki http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7356880
UAK Araştırma Alanları
İşaret İşleme
Özet
In this paper, a state estimation based method is proposed to determine harmonic current contributions of iron and steel (I&S) plants supplied from a Point of Common Coupling (PCC). Due to highly nonlinear nature of the iron and steel plant operation, accurate estimation of the harmonic contributions of the individual plants is essential. In the proposed method, the nonlinear characteristics of the plants and the utility are modeled as harmonic current sources and the harmonic current contributions of loads are decoupled from the upstream effects on the basis of the sample-by-sample time-synchronized field measurements of load currents and voltage signals. Being a field-measurement-based method, it is necessary to mitigate the measurement errors of conventional voltage transformers at harmonic frequencies. Gross error of voltage transformers is reduced through calibration, while weighted least squares state …
Anahtar Kelimeler
Harmonic Contribution | Power Quality | State Estimation | Weighted Least Squares Estimation