Title :
Lightning Transient Study of a Hybrid Overhead and Underground High-Voltage System
Author :
Chang, G.W. ; Liu, Y.J. ; Huang, H.M.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi
Abstract :
Transient overvoltages encountered by the power system equipment are mainly divided into three types: lightning surges, switch surges, and power frequency overvoltages. This paper presents a transient overvoltage study in a 345 kV hybrid overhead and underground transmission system that serves a high-tech industrial park. Based on the actual system information, the distributed parameter model is adopted to create a 345 kV transmission network in EMTP/ATP for simulations. The high- energy phenomenon and lighting surges are included in the transient study. Then, major criteria suggested by IEEE and IEC standards are used to assess the level of insulation coordination of the hybrid overhead/underground high-voltage system.
Keywords :
EMTP; IEC standards; IEEE standards; power overhead lines; power system transients; surges; transmission networks; EMTP/ATP; IEC standards; IEEE standards; distributed parameter; hybrid overhead; lightning surges; lightning transient study; power frequency overvoltages; power system equipment; switch surges; transient overvoltages; transmission network; underground high-voltage system; voltage 245 kV; EMTP; Frequency conversion; Hybrid power systems; IEC standards; Industrial power systems; Lightning; Power system modeling; Power system transients; Surges; Switches; Transients; distributed parameter; insulation coordination; lightning surges;
Conference_Titel :
Power Engineering Society General Meeting, 2007. IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
1-4244-1296-X
Electronic_ISBN :
1932-5517
DOI :
10.1109/PES.2007.385914
