Method and device for determining sheath circulation of multi-loop cross interconnection cable

The embodiment of the invention discloses a sheath ring current determination method and device for a multi-loop cross interconnection cable, and the method comprises the steps: determining electrical data used in a current data processing stage; determining new electrical data according to the sheath circulation value of each sheath sub-loop of each loop in the current data processing stage, so as to load and use the new electrical data when entering the next data processing stage; and performing convergence condition judgment on the new electrical data, and determining the sheath circulation of each sheath sub-loop of the target loop meeting the convergence condition. By executing the technical scheme provided by the embodiment of the invention, the method can be suitable for determining any multi-loop sheath circulation, is easy to implement, and can make up for the defect that the time complexity and the space complexity of the existing multi-loop circulation calculation are very high. 本发明实施例公开了一种多回路交叉互联电