接触力H_∞制御器を有する高速鉄道用低騒音集電装置の開発

概要

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To reduce noise caused by a current collector for the high-speed railways, a diamond shaped lownoise current collector has been developed. But it becomes difficult for this current collector to maintain the predetermined contact force between the contact strip and the trolley-wire, since its mass is three times as heavy as the conventional one and it suffers from ten times the lift force compared to the donventional one. So the vertical height of those apparatus should be controlled by using an active control system. The upper part of the insulator is located in high voltage which prevents us from using sensors. When using sensors only under the insulator, it is difficult to distinguish wire disturbance from lift one. In this study, the difficulty is solved by the H_∞ controller which separates those disturbances in the frequency range. In the numerical calculation and experiment using a prototype experimental equipment, it is confirmed that the contact force variation corresponding to the roughness of the trolley-wire at 2 H_z, 20 mm is reduced by about 70% compared with a passive model, and the contact force against the lift force at the ramp is reduced by about 30%.
社団法人日本機械学会の論文
1997-07-25