A mathematical model for an equipment's (synchronous machine, inverter based resources, transmission lines, load and energy storage) electro-mechanical and electro-magnetic response to control or grid changes. A mathematical model representing the sub-cycle behaviour needed for analysis of the steady state stability (small-signal stability) and/or transient stability of a power system or parts of it. (The DY profile of CIM.) More info here: https://www.nerc.com/comm/PC/Model%20Validation%20Working%20Group%20MVWG%202013/NERC%20Standardized%20Component%20Model%20Manual.pdf https://arxiv.org/pdf/1804.04933.pdf#:~:text=POWER%20SYSTEM%20MODELS,wind%20generators%20and%20PV%20generators.