ESTIMATION METHOD AND ESTIMATION APPARATUS FOR TROLLEY WIRE STATIONARY HEIGHT

摘要

PROBLEM TO BE SOLVED: To provide a method which enables a trolley wire stationary height to be estimated continuously from data measured with an inspection car running at high speed.SOLUTION: An impulse response matrix that expresses a dynamic characteristic of an overhead power line comprising a trolley wire 11 is prepared in advance. A height of a pantagraph 3 sliding with the trolley wire 11 and a contact force between the pantagraph 3 and the trolley wire 11 is measured. A stationary height of the trolley wire is estimated by subtracting an estimated previous amount of push-up of the trolley wire 11 at an estimation target point generated by the pantagraph 3 from a height of the pantagraph 3 at the point. The estimated previous amount of push-up is obtained by a convolution integration of a value produced by multiplying the contact force of each point of a section from the estimation target point to a certain distance before by an impulse response at each point of the impulse response matrix with respect to the section.