METHOD OF RECEIVING SIGNALS FROM INDUCTIVE COMMUNICATION LINE WITH COMPENSATION OF INTERFERENCE FROM EXTERNAL ELECTROMAGNETIC FIELD OF POWER EQUIPMENT OF TRACTION ROLLING STOCK Russian patent published in 2024 - IPC B61L3/12 B61L23/22 

FIELD: electricity.

SUBSTANCE: invention relates to methods of receiving signals from an inductive communication line with interference compensation. In the method, before the start of operation in the conditions of the checkpoint, data on the values of the transmission coefficients are recorded for each of the current receiving sensors for at least one interference frequency and on values of transmission coefficients for each of the current measuring sensors for at least one interference frequency and for at least one frequency of the carrier signal. Under operating or test conditions, the electromagnetic field is additionally continuously measured by an inductive method and/or using the Hall effect near the area of arrangement of at least one current receiving sensor located above the left-hand running rail, using at least one sensor current measuring instrument; measuring by inductive method and/or by means of Hall effect electromagnetic field near the area of at least one current receiving sensor located above the right-hand running rail, using at least one current measuring sensor; determining the interference level for one or more interference frequencies and the carrier frequency level for one or more carrier frequencies in each of the current measuring sensors; generating, taking into account the recorded data on the values of the transmission coefficients for each of the current receiving and measuring sensors, the interference compensation voltage; interference compensation voltage is subtracted from the resultant voltage of the mixture of the useful signal and interference.

EFFECT: reduced interference level at the input of the locomotive receiver, which is associated with the operation of the power equipment of the rolling stock with electric traction.

1 cl, 1 dwg