Abstract
PMU devices are expected to grow in number from a
few to several hundreds in the next five years. Some relays are
already global positioning system-capable and could provide the
same type of data as any PMU. This introduces a new paradigm
of very fast accurate synchrophasor measurements from across
the grid in real-time that augment and parallel existing slower
SCADA measurements. Control center applications will benefit
from this PMU data; for example, use of PMU data in state
estimation is expected to improve accuracy and robustness, which
in turn will result in more timely and accurate N-1 security
analysis, resulting in an overall improvement of grid system
reliability and security. This paper describes results from a recent
implementation of this technology, the benefits and future work.