Power Quality Enhancement of Offshore Oil and Gas Platform with High Penetration of Wind Power and Energy Storage

This paper aims to analyze the effect of high penetration of floating offshore wind-based power generation on the power quality of a Floating Production Storage and Offloading (FPSO) power system. The paper focuses on the continuous frequency variation caused by intermittent wind power generation and an energy storage-based solution for power smoothing. A set of results simulated in MATLAB/Simulink® is shown to assess different operational scenarios of a typical Brazilian FPSO from the Mero Oil Field, powered by 109 MVA/ 87 MW from three synchronous generators, without wind power. Wind power penetration varies from 10 to 50 MW, and the effects of this variation on FPSO power quality are reported. Then, the number of gas turbine generators is reduced from 3 to 2 generators. Finally, the energy storage for power smoothing purposes is evaluated. Conclusions are drawn based on steady-state and transient voltage and frequency profiles, active and reactive power flow between loads and generation, the rate of change of frequency, and frequency nadir.