Inertia Identification and Analysis for High-Power-Electronic-Penetrated Power System Based on Measurement Data

With the gradual increases in use of wind power and photovoltaic generation, penetration rate electronics has increased recent years. The inertia characteristics power-electronic-based sources are different from those synchronous generators, making evaluation difficult. In this paper, analyzed. A measurement-based identification method for sources, as well high-power-electronic-penetrated systems, is proposed by fitting frequency data. control strategies corresponding parameters discussed a case study. It was proven that provided can be much higher than generator same capacity. also not constant value, but changes along with output sources.