Title page for ETD etd-04182009-041143

Type of Document Master's Thesis
Author Huang, Chiung-Yi
URN etd-04182009-041143
Title The application of phasor measurements for adaptive protection and control
Degree Master of Science
Department Electrical Engineering
Advisory Committee
Advisor Name Title
Phadke, Arun G. Committee Chair
De La Ree Lopez, Jaime Committee Member
Mili, Lamine M. Committee Member
  • Power resources
Date of Defense 1991-06-05
Availability restricted

This thesis describes an adaptive protection scheme that performs the collection of the voltage and current phasors during post-fault period, tracking the power swing phenomena, identifying the onset of instability, and then issuing a stabilizing command. In this work, the protection system is to maintain the reliability! ensure the secure operation, and prevent total collapse of the power system. The work is based upon methods of clustering for meter placement in a bulk power system, and selecting the pilot points for installing the phasor measurement units (PMU) to measure the bus voltage phasors and associated branch current phasors. According to the network law, fast calculation of state estimation can be made from these measurements. Because the on-line assessment of transient stability has to provide a quick and approximate result, the direct method which determines stability without explicit integration techniques is applicable in this study. The results of the system stability prediction in real-time by digital computer simulation under stable and unstable operating conditions are presented.

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