Dynamic Equivalent Model Considering Multiple Induction Motors for System Frequency Response

Renewable energy sources have been characterized by a persistent and rapid proliferation, which has resulted in notable reduction grid inertia over an extended period. There is widely held belief that the primary source of within stems from generation-side conventional units. However, power consumption, significant number induction motors are present, can inherently offer rotational virtue their kinetic energy. To investigate influence on inertia, this paper, we propose two types models, i.e., detailed model dynamic equivalent considers multiple motors. Specifically, with first established. requires specific parameters motors, hard to acquire large systems. Moreover, accuracy unsatisfactory. fill these gaps, (DEM) further proposed emulate model. Compared model, structurally simple does not require Therefore, it possible apply systems for investigating frequency dynamics. A genetic algorithm introduced order figure out historical data. The evaluated IEEE 9-bus system MATLAB SimPowerSystems toolbox.