Journal
ELECTRIC POWER SYSTEMS RESEARCH
Volume 148, Issue -, Pages 273-281Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.epsr.2017.03.026
Keywords
Backward/Forward Sweep (BFS); Distributed Systems; Three-phase Unbalanced Power Flow; Transformer Modeling; alpha beta 0; Stationary Reference Frame
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Funding
- Research, Technological Development and Innovation Program Oriented to the Society Challenges of the Spanish Ministry of Economy and Competitiveness [ENE2013-44245-R]
- Government of the Principality of Asturias [FC-15-GRUPIN14-127]
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A Backward/Forward Sweep (BFS) algorithm for power flow calculations adapted to matrix formulation in the alpha beta 0 reference frame is presented in this paper. The novelty of the work is the definition of a BFS solver with the following characteristics: matrix formulation in alpha beta 0 frame, valid for unbalanced three phase or single phase systems and capable of handling transformers and distributed generators; Slack, PQ or PV nodes. The matrix formulation avoids the difficulties of load-flow methods presented in the literature: lack of generalization for arbitrary network topologies and transformer connections; the alpha beta 0 stationary reference frame makes the algorithm easily applicable to distribution systems; and finally, the BFS algorithm is an efficient, robust and fast solver. The IEEE Node Test Feeders will be used to provide test systems under several configurations. Comparison to a direct algorithm will demonstrate the improvements in robustness, efficiency and computation time. (C) 2017 Elsevier B.V. All rights reserved.
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