Journal of Electrical Engineering : Volume 17 / 2017 - Edition : 1

OPTIMAL PATH IDENTIFICATION NEW APPROACH FOR POWER SYSTEM RESTORATION USING PMUs

Authors:
Mohamed.F. KOTB
Sahar.S. KADDAH
Mohamed.T. ELSEDEEK
Domain:
industrial electrical power systems
Abstract:
An effective approach is proposed to obtain the optimal restoration path sequence after blackout using Phasor Measurement Units (PMUs). Two algorithms are introduced to apply the proposed planning approach. The first algorithm is used to start all Non Black Start Units “NBSUs” from BSU by identifying the optimal shortest path between any two buses. The Power Transfer Distribution Factor (PTDF) and Restoration Performance Index (RPI) are employed in the second algorithm to energize the load buses. Observable paths, avoiding thermal overloading and preventing connecting lightly loaded lines to prevent overvoltage are ensured when identifying the optimal restoration path by starting NBSUs as early as possible. The proposed approach is capable to deal with both the buildup and build down restoration strategies. The New England 39 bus and IEEE 118 bus power systems are applied to verify the efficiency of the proposed approach.
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