TY - JOUR
T1 - Review of Partial Discharge Activity Considering Very-Low Frequency and Damped Applied Voltage
AU - Ghaffarian Niasar, Mohamad
AU - Wang, Xiaolei
AU - Kiiza, Respicius Clemence
PY - 2021
Y1 - 2021
N2 - When detecting the presence of partial discharge (PD) activity in the insulation system in high-voltage equipment, the excitation voltages at variable frequency have been widely used instead of power-frequency (50/60 Hz) sinusoidal voltage in order to reduce the charging power. This work reviews the relevant research on PD activity at very low frequency (VLF) method, including sinusoidal or cosine-rectangular voltage shape, and damped AC (DAC) method. Based on the research history and development status, some major PD characteristics, such as PD inception voltage (PDIV), PD amplitude, PD charge, PD phase-resolved pattern, and several hot issues, such as surface charge decay and statistical time lag, have been discussed. Moreover, the advantages, disadvantages, and applied conditions of two reviewed methods has been summarized. Finally, the prospects have been made on the main development trends of this research field in the future.
AB - When detecting the presence of partial discharge (PD) activity in the insulation system in high-voltage equipment, the excitation voltages at variable frequency have been widely used instead of power-frequency (50/60 Hz) sinusoidal voltage in order to reduce the charging power. This work reviews the relevant research on PD activity at very low frequency (VLF) method, including sinusoidal or cosine-rectangular voltage shape, and damped AC (DAC) method. Based on the research history and development status, some major PD characteristics, such as PD inception voltage (PDIV), PD amplitude, PD charge, PD phase-resolved pattern, and several hot issues, such as surface charge decay and statistical time lag, have been discussed. Moreover, the advantages, disadvantages, and applied conditions of two reviewed methods has been summarized. Finally, the prospects have been made on the main development trends of this research field in the future.
KW - Damped AC method
KW - Partial discharge
KW - Very low frequency method
UR - http://www.scopus.com/inward/record.url?scp=85106240388&partnerID=8YFLogxK
U2 - 10.3390/en14020440
DO - 10.3390/en14020440
M3 - Article
SN - 1996-1073
VL - 14
SP - 1
EP - 20
JO - Energies
JF - Energies
IS - 2
M1 - 440
ER -