Method for optimally configuring electric reactor for limiting super/ultra high voltage coupling circuit secondary arc currents

The invention provides a method for optimally configuring an electric reactor for limiting super/ultra high voltage coupling circuit secondary arc currents. The method comprises the following steps of determining an original parameter matrix, writing the relation between the secondary arc currents Ij under different failure modes and a coupling parameter matrix according to a fault type, calculating the upper limit and the lower limit of the compensation degree of a device line and the maximum value Imax of the secondary arc currents meeting rapid automatic reclosing lock requirements, solving a simultaneous analysis model, and obtaining the optimized compensation configuration scheme according to the secondary arc currents. The method has the obvious advantages of simplifying the calculation process, optimizing the calculation result and improving the working efficiency. The method has the advantages of being suitable for a same-tower double-circuit line, and being applied to four-circuit or more-circuit lines, and the method for optimally configuring the electric reactor for limiting the secondary arc currents for the super/ultra high voltage coupling circuit is simple and efficient.