Energy Management Strategy Designed for Offshore Oil Rig with Offshore Wind

Abstract

Dynamic load demand affects output power to load, which may fail to meet IEC standards 61892-1 for offshore oil and gas installation. High power consumption in offshore oil rig requires both large gas and wind turbine generation that are unable to react quickly to enhance transient stability. Hence, an energy management system (EMS) is designed with a battery energy storage system (BESS) to replace partial output power from the gas turbine onboard the oil rig for optimal transient response. Our designed EMS differs from the current state of art by not using a low-pass filter so as to improve rapid response from BESS , while enhancing output power quality to load. Our EMS is validated with maximum transient voltage and frequency deviations in simulation to illustrate improved transient stability results.

Coordination of Frequency Reserves in an Isolated Industrial Grid Equipped With Energy Storage and Dominated by Constant Power Loads

“…Even though constant power loads and sources are known to cause instabilities in dc microgrids [40], [41] and in ac microgrids [42], [43], it is common in studies of the integration of wind power supported by ESSs and by converter-interfaced flexible loads (FLX) [9], [10], [14], as well as only supported by an ESS [11], [28], to represent the total electrical load of the isolated O&G platform as constant impedance loads (CZLs).…”

“…It is interesting to assess the stability of the study case with the simplified model given by (11) when the FCR is shared between two GTs and the ESS. For that, the normalized p FCR is split into three components, one for the ESS and two for the GTs.…”

“…The challenges of balancing excess or underproduction from wind power in isolated O&G platforms have been identified and assessed in [6]- [8]. For mitigating wind variability in offshore applications, energy storage systems (ESSs), both centralized [9]- [11] and distributed [12], have been investigated in the literature. The operation of the platform's water injection system [13] as a flexible load in conjunction with wind power has, for instance, been assessed by [14]- [16].…”

“…To the best extent of the authors' knowledge, the expanded FCR I concept has not been explored in the offshore industry [24]- [26]. It has neither been investigated in the literature of isolated offshore O&G platforms expected to be connected to WFs with the support of ESSs [10], [11], [28], without the support of ESSs [7], [8], [29], [30], nor with inertial support provided by the WTs [8]. Moreover, the extended FCR I concept was not employed in studies on the stability of power-intensive land-based isolated grids fed by hydro, diesel, and coal-based traditional synchronous generation that have to balance the intermittency of a considerable wind or photovoltaic (PV) contribution [31], [32] and it was not employed in the literature of ac microgrids [33]- [35] either.…”

Wind-storage-turbine Bundled Technology for the Power Supply of Offshore Oil and Gas Platforms

“…An energy storage system (ESS) is applied to cooperatively work with turbine generators and support the penetration of offshore wind power [11][12] . An energy management strategy is designed to improve the transient stability of offshore platforms with wind power [13] .…”