Are accurate load models enough to simulate system dynamics correctly?
No, more is required. To represent system dynamics accurately, we also need accurate models of generating units, transmission lines, transformers, and other components. Of these, generator models are the most complex and most important for accurate dynamic simulations. Accurate generator modeling will be covered in a follow-up article in a future issue of EL&P. Abi-Samra, EPRIsolutions senior technical director, has conducted a number of projects on load measurement and modeling, and is an expert in system planning. He can be contacted at 650-855-1022 or nabisamr@EPRIsolutions.com.
