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Distribution load flow methods for shipboard power systems

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2 Author(s)
Baldwin, T.L. ; Dept. of Electr. & Comput. Eng., FAMU-FSU Coll. of Eng., Tallahassee, FL, USA ; Lewis, S.A.

With the recent initiatives to modernize large ship power systems, ship builders are integrating technologies with the aim of an all-electric energy system. New control strategies utilizing distribution automation and network reconfiguration provide greater flexibility, reliability, and quality of service. These automated controls require efficient and accurate load flow solutions. A critique of classical and distribution power-flow methods is conducted for shipboard distribution automation. Three classical radial-network power-flow methods are reviewed. A modification of the forward-backward sweep method is presented, which enhances the computation time and solution convergence. Comparative tests are conducted on a new benchmark test system of a ship's distribution network. The results demonstrate that the modified forward-backward sweep method succeeds in being the fastest method with good convergence on networks with low X/R ratios.

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Industry Applications, IEEE Transactions on  (Volume:40 ,  Issue: 5 )