Abstract

RAMIREZ-P, Sindy L  and  LOZANO, Carlos A. Comparison of PMU Placement Methods in Power Systems for Voltage Stability Monitoring. Ing. Univ. [online]. 2016, vol.20, n.1, pp.41-61. ISSN 0123-2126.  https://doi.org/10.11144/Javeriana.iyu20-1.cppm.

A power system is subject to events that may lead to voltage stability problems, which eventually may lead to black-outs. On-line phasor measurements may allow anticipating situations leading to voltage instabilities; these on-line measurements can be accomplished by using Phasor Measurement Units (PMU). However, for a power system it is is not economical or necessary to install PMU at each bus; in order to avoid this situation it is required to develop a strategy for PMU placement that is useful and convenient, with a limited number of available PMU. This paper presents a review and comparison of some methods for PMU placement in power systems; also, we include a classification according to the type of observability obtained and consider the application of the method . Finally, a method for monitoring voltage stability in power systems is chosen and tested on the IEEE39-bus system using Matlab-PSAT (Power System Analysis Toolbox).

Keywords : phasor measurement unit (PMU); voltage stability; contingency; optimal PMU placement; power system; óptima ubicación de PMU.

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