A Case Study on Integrating Offshore Wind Power to Islanded Offshore Oil and Gas Field

Along with the energy-form transformation, energy enterprises are paying attention to offshore wind farm, which would support the decarbonization of the offshore oil and gas field. Yet, the intermittent characteristics still prevents the field owners from embracing the wind power. To address this issue, this paper investigates the integration of wind power into an islanded offshore oil and gas field microgrid. Firstly, the structure and operating mechanism of the microgrid are presented. Source-load characteristics and network parameters that may affect the voltage and frequency features of the microgrid are analyzed. Then the models of the microgrid is presented. Based on the models, the effects of four typical disturbances on the microgrid is studied in detail, including the variation of offshore wind power output, the trip-off of offshore wind power, the failure of subsea cable, and the start-up of high-power induction motor. The results demonstrate that the microgrid can accommodate the wind power during normal operations, but may cause frequency and voltage issues during contingencies like the start-up of the motors and the failure of subsea cables.