Title :
Effect of inrush current flowing into EMI filter on the operation of ICT equipment in HVDC system
Author :
Asakimori, Koki ; Murai, Kensuke ; Tanaka, Toru ; Babasaki, Tadatoshi
Author_Institution :
NTT Energy & Environ. Syst. Labs., Nippon Telegraph & Telephone Corp., Musashino, Japan
fDate :
Sept. 28 2014-Oct. 2 2014
Abstract :
We describe how inrush current flowing into an electromagnetic interference (EMI) filter when ICT equipment is connected to an HVDC system affects the operation of other currently connected ICT equipment. When ICT equipment is connected to an HVDC system, inrush current flows to the EMI filter of newly connected ICT equipment. The inrush current causes voltage oscillation at the input of other (previously connected) equipment. If the input voltage of other equipment deviates from the normal DC voltage range specified by ITU-T L.1200, the ICT equipment may stop operating. This paper addresses the relationship between the capacitance of the EMI filter capacitor and the voltage oscillation at the input of the ICT equipment. We clarified that if the capacitance is less than 13 μF, the input voltage of ICT equipment does not deviate from the normal DC voltage range when inrush current flows.
Keywords :
HVDC power convertors; electromagnetic interference; power capacitors; power filters; DC voltage range; EMI filter capacitor; HVDC system; ICT equipment operation; ITU-T L.1200; capacitance; converter; electromagnetic interference filter; input voltage oscillation; inrush current flowing effect; Capacitance; Capacitors; Electromagnetic interference; HVDC transmission; Integrated circuit modeling; Simulation; Surges;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International
Conference_Location :
Vancouver, BC
DOI :
10.1109/INTLEC.2014.6972194
