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  A dual method for computing power transfer distribution factors.

Ronellenfitsch, H., Timme, M., & Witthaut, D. (2017). A dual method for computing power transfer distribution factors. IEEE Transactions on Power Systems, 32(2), 1007-1015. doi:10.1109/TPWRS.2016.2589464.

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 Creators:
Ronellenfitsch, Henrik1, Author              
Timme, Marc2, Author              
Witthaut, D., Author
Affiliations:
1Max Planck Research Group Physics of Biological Organization, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063293              
2Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063295              

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Free keywords: Power transfer distribution factor; DC power flow; Line outage distribution factor
 Abstract: Power Transfer Distribution Factors (PTDFs) play a crucial role in power grid security analysis, planning, and redispatch. Fast calculation of the PTDFs is therefore of great importance. In this paper, we present a non-approximative dual method of computing PTDFs. It uses power flows along topological cycles of the network but still relies on simple matrix algebra. At the core, our method changes the size of the matrix that needs to be inverted to calculate the PTDFs from N x N, where N is the number of buses, to (L - N + 1) x (L - N + 1), where L is the number of lines and L - N + 1 is the number of independent cycles (closed loops) in the network while remaining mathematically fully equivalent. For power grids containing a relatively small number of cycles, the method can offer a speedup of numerical calculations.

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Language(s): eng - English
 Dates: 2016-07-112017-03
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1109/TPWRS.2016.2589464
 Degree: -

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Title: IEEE Transactions on Power Systems
Source Genre: Journal
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Pages: - Volume / Issue: 32 (2) Sequence Number: - Start / End Page: 1007 - 1015 Identifier: -