The invention discloses a subway steel rail potential and stray current suppression method and suppression system, and the method comprises the steps: S1, monitoring the steel rail potential difference between traction substations of adjacent stations at two adjacent sides of a station and a train in real time, and calculating the corresponding stray current according to the steel rail potential difference at the two sides; s2, judging whether the potential difference of the steel rails on the two sides and the corresponding stray current meet a safety threshold condition or not, and if so, not suppressing the steel rail potential and the stray current; otherwise, entering the step S3; and S3, an energy feedback device which is connected to the contact network and the steel rail and connected with the train in parallel is put into use, and the train load is borne through rectification so as to reduce the steel rail current flowing back to the traction substations on the two adjacent sides by train current.
本发明公开了一种地铁钢轨电位及杂散电流抑制方法及其抑制系统,抑制方法包括步骤S1实时监测站点相邻两侧临站的牵引变电所与列车的钢轨电位差,并根据两侧钢轨电位差,分别计算与其对应的杂散电流;S2判断两侧钢轨电位差及其对应的杂散电流是否满足安全阈值条件,若是,无需抑制钢轨电位和杂散电流;否则进入步骤S3;S3投入分别连接于接触网与钢轨上,并与列车并联的能馈装置,通过整流承担列车负荷以降低列车电流回流至相邻两侧牵引变电所的钢轨电流。
Subway steel rail potential and stray current suppression method and suppression system thereof
地铁钢轨电位及杂散电流抑制方法及其抑制系统
2024-04-16
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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