DC System Impedance Scanning for MTDC

doi:10.3969/j.issn.1000-7229.2017.08.003

Abstract

Abstract: ABSTRACT： DC system impedance scanning is one of the important means of harmonic suppression research and DC filter design on multi-terminal direct current （MTDC） transmission. This paper presents a DC system impedance scanning method for MTDC, in which the error from converter generated harmonic is excluded by improving impedance formula. Influence of various factors on the impedance scanning, such as amplitude, phase and frequency distribution of the injected harmonic source, is also studied. PSCAD/EMTDC simulation result shows that the presented method is effective and reliable for DC system impedance scanning of MTDC, which has reference value of DC engineering.

Key words: MTDC transmission, DC harmonic, resonant, impedance scanning, amplitude-frequency characteristics

CLC Number:

TM 712

CUI Kangsheng, WEN Jun, ZHAO Xiaobin, LI Rong, YAN Han, DUAN Ruimin. DC System Impedance Scanning for MTDC[J]. Electric Power Construction, 2017, 38(8): 17-.

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