The invention relates to a motor train unit pantograph-catenary transient offline detection method and device, and the method comprises the following steps: 1), carrying out the effective value calculation of the network voltage data of a catenary collected by a network voltage transformer, and carrying out the next detection when the change of the network voltage effective value exceeds a threshold value; 2) detecting a primary side current value of the transformer, and when the current value is smaller than a threshold value, carrying out next detection; and 3) detecting the intermediate voltage of the converter, and when the intermediate voltage continuously drops and the drop exceeds a certain range of the nominal value of the intermediate voltage, determining that the pantograph net is offline. According to the method, the transient offline state of the pantograph-catenary is judged by collecting parameters such as the network voltage, the network flow and the traction intermediate voltage; through accurate offline detection and recording of the pantograph catenary in the online operation process, data support is provided for daily maintenance and overhaul of the pantograph, and the reliability of pantograph catenary contact in the operation of the motor train unit is improved.
本发明涉及一种动车组弓网短暂离线的检测方法和装置,所述检测方法包括以下步骤:1)对网压互感器采集的接触网网压数据进行有效值计算,当网压有效值的变化超过阈值时,进行下一步检测;2)检测变压器原边电流值,当电流值小于阈值时,进行下一步检测;3)检测变流器中间电压,当中间电压持续下降,当下降超过中间电压标称值的一定范围时,判定为弓网离线。本发明通过对网压、网流、牵引中间电压等参数的采集实现对弓网短暂离线状态的判断;通过对在线运行过程中弓网离线的准确检测和记录,为受电弓的日常维护和检修提供数据支撑,提高动车组运行中弓网接触的可靠性。
Detection method and device for transient offline of pantograph catenary of motor train unit
一种动车组弓网短暂离线的检测方法和装置
2022-05-13
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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