Power System Restoration Using Wide Area Measurement System (WAMS)

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Nourizadeh, Saber | 2012

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Type of Document: Ph.D. Dissertation
Language: Farsi
Document No: 43738 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Ranjbar, Ali Mohammad
Abstract:
The introduction of Wide Area Measurement Systems (WAMS) made it possible to monitor the stability online. This thesis presents a method for the optimal restoration planning based on Wide Area Measurement System (WAMS). In fact, the practical use of WAMS at the early stages of restoration provides precise determination of generators loading steps. Moreover, unification of phase angle references at different islands and presentation of tie line energizing priority list are significant benefits of WAMS at the last stages of restoration. The presented method uses observability analysis and Power Transfer Distribution Factor (PTDF) concept. The PTDF concept is applied to decrease the overvoltages caused by energizing transmission lines with lightly load. The New England 39-bus power system is used to demonstrate the proposed algorithm and verify the results. The proposed method is also applied on the IEEE 118-bus system as a large-scale power system to prove its capability in practical systems. The New England 39 bus power system is used to demonstrate the proposed algorithm and verify the results. The outcomes of the study are evaluated to show the validity and reliability of the presented approach.
Keywords:
Power System Restoration ; Wide Area Measurement System ; Phasor Measurement Unit