TY - GEN
T1 - An Improved Variable-Frequency Series Resonant System for PD Detection of MV Power Cables Based on DAC Technology
AU - Zhao, Xuefeng
AU - Lin, Tao
AU - Lu, Yuxin
AU - Chen, Yufei
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2019/5/22
Y1 - 2019/5/22
N2 - Medium voltage (MV) Power cables is gaining an important role in distribution power grids. However, potential defects and faults in the cables pose a great threat to the power system. Partial discharge (PD), which can reveal the potential defects and faults, is worldwide accepted as an indicator for insulation condition of MV power cables. Nowadays, the variable-frequency series resonant (ACRF) system can only be used for the withstand test, due to the disturbance produced by the inverter. Besides, the commercial damped AC system for PD detection is expensive because of the high voltage switches. This paper presents an improved ACRF system, which is a combination of the ACRF system and the damped AC (DAC) system. The system uses the ACRF method to excite high voltage on the test cables, and uses a relative low voltage bidirectional solid-state switch to obtain the pure DAC voltage. An implementation of the system was established for PD detection of a 200m faulty cable. The experimental results verify the feasibility of the system. © 2019 IEEE.
AB - Medium voltage (MV) Power cables is gaining an important role in distribution power grids. However, potential defects and faults in the cables pose a great threat to the power system. Partial discharge (PD), which can reveal the potential defects and faults, is worldwide accepted as an indicator for insulation condition of MV power cables. Nowadays, the variable-frequency series resonant (ACRF) system can only be used for the withstand test, due to the disturbance produced by the inverter. Besides, the commercial damped AC system for PD detection is expensive because of the high voltage switches. This paper presents an improved ACRF system, which is a combination of the ACRF system and the damped AC (DAC) system. The system uses the ACRF method to excite high voltage on the test cables, and uses a relative low voltage bidirectional solid-state switch to obtain the pure DAC voltage. An implementation of the system was established for PD detection of a 200m faulty cable. The experimental results verify the feasibility of the system. © 2019 IEEE.
KW - bi-directional solid-state switch
KW - damped AC
KW - medium voltage power cables
KW - partial discharge
KW - the variable-frequency series system
UR - https://www.scopus.com/pages/publications/85067011244
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85067011244&origin=recordpage
U2 - 10.1109/APEEC.2019.8720694
DO - 10.1109/APEEC.2019.8720694
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781728115900
T3 - 2019 Asia Power and Energy Engineering Conference, APEEC 2019
SP - 14
EP - 17
BT - 2019 Asia Power and Energy Engineering Conference, APEEC 2019
PB - IEEE
T2 - 2019 Asia Power and Energy Engineering Conference, APEEC 2019
Y2 - 29 March 2019 through 31 March 2019
ER -