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Table 3 Comparison results of eigenvalues

From: Fault location of untransposed double-circuit transmission lines based on an improved Karrenbauer matrix and the QPSO algorithm

Computing method

\(\lambda_{1}\)

\(\lambda_{2}\)

\(\lambda_{3}\)

\(\lambda_{4}\)

\(\lambda_{5}\)

\(\lambda_{6}\)

Matlab (\({10}^{ - 12}\))

− 1.1483 + 0.1232j

− 3.0574 + 1.0070j

− 1.1165 + 0.1457j

− 1.1398 + 0.1372j

− 1.2000 + 0.1725j

− 1.1316 + 0.1584j

Paper method (\({10}^{ - 12}\))

− 1.1483 + 0.1232j

− 3.0574 + 1.0070j

− 1.1165 + 0.1457j

− 1.1398 + 0.1372j

− 1.2000 + 0.1725j

− 1.1316 + 0.1584j