An experimental study on corona q-u curves under non-standard lightning impulses |
| |
| Affiliation: | 1. RTDS Technologies Inc., Winnipeg, MB, R3T 2E1, Canada;1. Graduate Program of Electrical Engineering (PPGEE), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil;2. Department of Electrical Engineering, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil;3. Department of Electrical Engineering of Federal Center of Technological Education (CEFET-MG), Belo Horizonte, Minas Gerais, Brazil;1. CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People''s Republic of China;2. College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, People''s Republic of China;3. University of Chinese Academy of Sciences, Beijing 100049, People''s Republic of China;4. College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, People''s Republic of China |
| |
| Abstract: | Considering that a majority of lightning surges intruding into substations present non-standard form, an experimental study is performed on the q-u (charge-voltage) curves under damped oscillation impulses in a corona cage. Based on the measured results, a comparison is made between the q-u curves under damped oscillation and double exponential impulses. The oscillation frequency and damping time constant are varied to investigate their effect on the characteristic parameters of the q-u curves. A preliminary discussion is also given for explanation of the formative mechanism of the oblate helix minor loops appearing on the q-u curves. |
| |
| Keywords: | Corona Damped oscillation impulse Lightning |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
