In the book Converter-based dynamics and control of modern power systems
Academic Press, London, United Kingdom
Summary
This chapter provides a definition of frequency for power system transient stability analysis. Both theoretical and practical techniques to estimate and measure the frequency of the system in transient conditions are discussed. The former includes the well-known center of inertia as well as the novel concept of “frequency divider formula” (FDF), which has been recently proposed by the authors. The latter includes the washout filter and a variety of implementations of phase-locked loop (PLL) devices. A variety of numerical simulations illustrate the impact of noise and estimation errors on the performance of different PLL implementations and compares their dynamic performance with the ideal frequency signals obtained with the FDF.
Keywords: Frequency; Inertia; Transient stability analysis; Center of inertia; Frequency divider formula; Phase-locked loop; Frequency control; Noise; Frequency estimation
ISBN: 978-0-12-818491-2
DOI: 
https://doi.org/10.1016/B978-0-12-818491-2.00006-7
Published: 2020
Citation:
A. Ortega, F. Milano, Frequency definition and estimation in modern power systems, in Converter-based dynamics and control of modern power systems. Ed. Academic Press. London, United Kingdom, 2020.
IIT-20-207L
