Quantitative model validation from the frequency perspective considering governor frequency ramp rate and activity range

A new approach for system‐wide power system frequency model validation via measurement data

“…In the system-wide model validation, using the generic models considering the most influential parameters can lead to satisfactory results even in real large-scale power systems. 3 Based on previous studies identifying the most influential parameters of the governor on frequency studies, 21 governor droop, dead band, and ramp-up rate constraint are considered for extraction in the validation process and other parameters of governor such as time constants are modeled, but their values assumed to be known. The generating unit active power is closely related to system frequency response.…”

“…Reaching the validated model for power system frequency studies in large real power systems indicates the correctness of such assumption. 21 The only non-governor influential parameter of generating units affecting the power system studies is the generator inertia. This parameter is almost always provided on manufacturer datasheets.…”

“…3,18,33 Simulation tests prove that system responses are much less sensitive to the values of other turbine-governor parameters such as time constants. 21 Therefore, in this article, only the key parameters which dominate the measured responses are selected for extraction in the validation process, and other parameters are only considered in the models with the known parameters values.…”

“…However, in this article, the IEEE test systems are selected so that one can reproduce the exact same results. Implementing the proposed method on a real large power grid such as the authors' previous works 3,21 could be done, but it lacks the reproducibility characteristic.…”

“…Only a few studies have so far been conducted in the field of power system-wide model validation from the frequency perspective considering a generic model for turbine-governors and loads, some of which are. [17][18][19][20][21] In Reference 17, the system-wide model validation of the Brazilian Interconnected Power System (BIPS), using synchronized phasor measurements, is presented. Qualitative and quantitative criteria are used, and some hints are provided to justify the difference between measured and the simulated results, including inaccurate measurements, unavailability of load models, and low precision of the pre-incident condition.…”