Nodal admittance matrix

In power engineering, nodal admittance matrix (or just admittance matrix) is an N x N matrix describing a linear power system with N buses. It represents the nodal admittance of the buses in a power system. In realistic systems which contain thousands of buses, the admittance matrix is quite sparse. Each bus in a real power system is usually connected to only a few other buses through the transmission lines.^[1] The nodal admittance matrix is used in the formulation of the power flow problem.

^ Grainger, John (1994). Power System Analysis. McGraw-Hill Science/Engineering/Math. ISBN 978-0070612938.

[1] Grainger, John (1994). Power System Analysis. McGraw-Hill Science/Engineering/Math. ISBN 978-0070612938.

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