Assessing system impedance based on data regrouping

• Autorzy: Xu Shuangting , Xiao Xianyong , Wang Yang , Wu Jun

Identyfikatory

DOI

10.24425/mms.2021.136002

• Języki publikacji: EN

Abstrakty

EN

In recent years, assessing supply system impedance has become crucial due to the concerns on power quality and the proliferation of distributed generators. In this paper, a novel method is shown for passive measurement of system impedances using the gapless waveform data collected by a portable power quality monitoring device. This method improves the overall measurement accuracy through data regrouping. Compared with the traditional methods that use the consecutive measurement data directly, the proposed method regroups the data to find better candidates with less flotation on the system side. Simulation studies and extensive field tests have been conducted to verify the effectiveness of the proposed method. The results indicate that the proposed method can serve as a useful tool for impedance measurement tasks performed by utility companies.

Słowa kluczowe

EN

system impedance; passive method; Thevenin equivalent; power system

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2021
• Tom: Vol. 28, nr 1
• Strony: 191--208
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr., wzory

Twórcy

autor

Xu Shuangting

• Sichuan University, The College of Electrical and Engineering, Chengdu 610065, China

autor

Xiao Xianyong

• Sichuan University, The College of Electrical and Engineering, Chengdu 610065, China

autor

Wang Yang

• Sichuan University, The College of Electrical and Engineering, Chengdu 610065, China

autor

Wu Jun

• Electric Power Research Institute of State Grid Zhejiang Electric Power Company, Hangzhou 310014, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).