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Phasor Measurement Unit and Its Application in Modern Power Systems

  • Jian Ma
  • Yuri Makarov
  • Zhaoyang Dong

Abstract

The introduction of phasor measurement units (PMUs) in power systems significantly improves the possibilities for monitoring and analyzing power system dynamics. Synchronized measurements make it possible to directly measure phase angles between corresponding phasors in different locations within the power system. Improved monitoring and remedial action capabilities allow network operators to utilize the existing power system in a more efficient way. Improved information allows fast and reliable emergency actions, which reduces the need for relatively high transmission margins required by potential power system disturbances. In this chapter, the applications of PMU in modern power systems are presented. Specifically, the topics touched in this chapter include state estimation, voltage and transient stability, oscillation monitoring, event and fault detection, situation awareness, and model validation. A case study using the Characteristic Ellipsoid method based on the PMU measurements to monitor power system dynamics is presented.

Keywords

Power System Phasor Measurement Situation Awareness Phasor Measurement Unit Modern Power System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Higher Education Press, Beijing and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Jian Ma
  • Yuri Makarov
  • Zhaoyang Dong

There are no affiliations available

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