The embodiment of the invention discloses a flexible through-type traction power supply system and a control method thereof, and the system comprises n traction substations and a power flow control station, comprising a Scott transformer, two groups of voltage source converters VSC, two groups of DC-DC bidirectional converters DDC, a photovoltaic array, a super capacitor SC, a three-phase grid-connected inverter TGI, a three-phase boosting transformer TT and a measurement and control unit. And the measurement and control unit is used for collecting electrical data and then controlling the two groups of voltage source converters VSC, the three-phase grid-connected inverter TGI and the two groups of DC-DC bidirectional converters DDC. All electric split phases in the traction network are eliminated, the risk that the train passes through the split phase is reduced, the operation safety of the train is guaranteed, the electric energy quality problems of negative sequence, reactive power, harmonic waves and the like are solved, and favorable conditions are created for further high-speed and heavy-load operation of the train.
本发明实施例公开了一种柔性贯通式牵引供电系统及其控制方法,该系统包括:n个牵引变电所与1个潮流控制所,所述潮流控制所,包括:Scott变压器、两组电压源变流器VSC、两组DC‑DC双向变换器DDC、光伏阵列、超级电容SC、三相并网逆变器TGI、三相升压变压器TT以及测控单元;所述测控单元,用于采集电气数据后,对两组电压源变流器VSC、三相并网逆变器TGI以及两组DC‑DC双向变换器DDC进行控制。本发明消除了牵引网中全部电分相,降低了列车过分相风险,保障列车运营安全,解决了负序、无功、谐波等电能质量问题,为列车进一步高速、重载化运行创造有利条件。
Flexible through-type traction power supply system and control method thereof
一种柔性贯通式牵引供电系统及其控制方法
2024-10-08
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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