A Perspective on WAMS Analysis Tools for Tracking of Oscillatory Dynamics

TLDR

Wide‑area measurement systems (WAMS) have evolved over the past two decades to monitor power‑system oscillatory dynamics using phasor measurement units and advanced signal‑processing algorithms, and are now advancing toward real‑time operation. This paper offers a perspective on WAMS analysis approaches, clarifying their operations, interactions, and application conditions. It presents an overview of WAMS analysis methods and illustrates them with examples from the western North American power system.

Abstract

Over roughly the past two decades, an architecture has evolved for using wide area measurement systems to monitor power-system oscillatory dynamics. This includes, but is not limited to, the use of phasor measurement units and advanced signal processing algorithms. Today, this architecture is further evolving toward real-time operation applications. This paper provides a perspective upon these analysis approaches, and defines and clarifies analysis operations, interactions, and application conditions. An overview of WAMS analysis approaches is given along with several examples from the western North American power system.