A Perturbation-Based Methodology to Estimate the Equivalent Inertia of an Area Monitored by PMUs

This paper proposes a novel methodology to estimate equivalent inertia of an area, observed from its boundary buses where Phasor Measurement Units (PMUs) are assumed be installed. The areas divided according the measurement points, and proposed can obtain dynamic response area dependent or independent coherency generators inside, which is first contribution this paper. in three parts: estimating frequency response, power imbalance through solution swing equation by Least-Squares Method (LSM). estimation second paper, enabling study that contain perturbations attending limitation methods literature rely on assumptions slow mechanical power. It further steps: accounting total injected, load behavior quality results proved with test systems different sizes, simulating types perturbations.