Electrical transient stability and underfrequency load shedding analysis for a large pump station

Electrical transients from power system faults, loss of generation and load swings can disrupt petroleum pumping station operations. Isolated stations with no utility tie, and those with weak utility ties, are especially at risk. Relative to this problem, the following four main issues are addressed: (1) analysis of the methods that use high-speed underfrequency load shedding to maintain power system stability and preserve pumping station operations; (2) analysis of combustion gas turbine generator and diesel generator transient responses, as they pertain to the electrical engineer; (3) discussion of power system component modeling and the use of low voltage circuit switching devices to shed loads; (4) and comparison of two computer analysis program outputs for underfrequency load shedding responses.