Синхронные режимы генераторов электростанций

We propose an electromechanical model of a power grid consisting of an arbitrary number of generators supplying a common balanced resistance-inductance load. We consider an important special case - a model of a power station with identical generators operating on common generator voltage busbars with the connected load. Relationships have been established between the parameters of the model and the parameters of synchronous non-salient pole turbogenerators, which produce most of the electricity in large power grids. The conditions for the existence of normal and abnormal synchronous modes of generators are obtained. For a power station with two generators, unsafe and safe stability boundaries of the normal synchronous mode were found in the parameter space. The correspondence between changes in the model dynamics and events in power grids when crossing these boundaries is established.