Maclaurin–Newton algorithms in 132 kV subtransmission security simulations |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Alabama, Tuscaloosa, AL 35406, USA;2. Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS 39180, USA;3. Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, PR 00680, USA;1. Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Republic of Korea;2. Institute of Advanced Machinery and Design, Seoul National University, Seoul 151-742, Republic of Korea;1. Energy Research Institute, University of Leeds, Leeds, LS2 9JT, UK;2. Chemical Engineering and Process Engineering Institute, MOL Department of Hydrocarbon and Coal Processing, University of Pannonia, Veszprém, 10 Egyetem u., 8200, Hungary |
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| Abstract: | This paper examines how applicable approximate Jacobian inversions are when implemented in the security analysis simulations of 132 kV power subtransmission. The complete Scottish 400/275/132 kV power transmission network was simulated, including the 132 kV subtransmission network with its high r/x ratios. Both the coupled and decoupled Maclaurin–Newton load flow algorithms were tested. It was proved that high r/x ratios found in the 132 kV level, five times higher than in 400/275 kV, have an important influence on convergence and accuracy of the inversion Jacobian load flow algorithms. It was found that the decoupled inversion load flow was applicable for 132 kV, it converged regularly, but had worse convergence and accuracy characteristics, compared to 400/275 kV applications, while the coupled inversion load flow was not applicable at all for 132 kV, it always diverged. |
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