| dc.description.abstract | The main objective of power system analysis is to ensure that the electrical power system is modeled in a safe, reliable, and efficient manner. Short-circuit analysis is a power system analysis investigating the maximum and minimum currents during a fault or short-circuit.
The power system analysis software PowerFactory by DIgSILENT was used for modeling and analyzing an 11kV offshore oil and gas platform that is powered from shore through an HVDC cable. Short-circuit analysis according to IEC 60909 was conducted for variouscombinations of open and closed bus-ties between the 690V switchboards or the 11kV switchboards under normal operation mode. Maximum and minimum short circuit currents were considered to ensure compliance with switchgear ratings and protective devise coordination. The results display short-circuit currents within defined limits, indicating the electrical network is modeled safely and reliably. For further work, it is recommended to develop the electrical model further by doing analysis for other operation types, like essential and emergency operations, and conducting other power system analyses, for instance, arc flash analysis and load flow. | |
