Research on the Transformation of Gas Engine Anti phase Operation Based on Offshore Oil and Gas Fields
This article describes the phenomenon of rolling development of offshore platforms connected to new platforms,which leads to instability of unit control after the original platform's generator units enter phase operation,resulting in power grid oscillation and even collapse accidents.By analyzing the phase leading operation of the unit,it is concluded that the long-term phase leading operation of the unit is due to the capacitive nature of the power supply submarine cable,the absence of large motors and other inductive loads on the new platform,and the negative reactive power of the power grid.The stator coils and excitation system of the unit itself generate high temperature heat,and the phase leading operation of the unit causes a decrease in the voltage of the power grid busbar,an increase in the current of equipment in the power grid,continuous high temperature heating,and damage to equipment insulation.Three optimization methods have been proposed to address the high local temperature rise and burning caused by advanced phase operation,which seriously affects the stable operation of the power grid.The application promotion and benefits of these methods have been summarized.
Phase advance operationCapacitiveInsulationOil and gas fieldPower station set
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