Study on Frequency and Voltage Support Characteristics of Grid-Forming Energy Storage in Oilfield Microgrids

In addition to the functions of conventional energy storage, grid-forming energy storage also has the ability to enhance the rotational moment of inertia of the system. This paper addresses the frequency and voltage support characteristics of grid-forming energy storage in oilfield microgrids. Firstly, the control strategy of grid-forming energy storage converter is analyzed, and the grid-connected active and reactive power regulation scheme is designed based on virtual torque and virtual excitation. Secondly, an oilfield microgrid model with grid-forming energy storage, gas turbine unit and load is established, based on which a study on the characteristics of grid-forming energy storage-supported grid is carried out.