Transient stability of oil-field isolated power systems with magnetically controlled shunt reactors

Oil- and gas-producing companies are large and heavy-duty power consumers. The highest priority in design of new oil-field power supply systems, which are in most cases autonomous, should be devoted to ensuring uninterrupted, reliable and qualitative electric power generation as well as system survivability under variety of unpredictable incidents. The paper is primarily concerned with analyzing alternatives of preventive control in isolated oil-field power systems. As the main reason of severe accidents in such autonomous systems is voltage collapse and induction motor shutdown, the application of reactive power compensation devices at the most critical load buses should be considered. The results of autonomous power system transient analysis show that installation of such combined unit as magnetically controlled shunt reactor with capacitor bank allows to enhance dynamic stability up to 50%.