The invention discloses a multi-source flexible in-phase traction power supply system based on a traction transformer. The multi-source flexible in-phase traction power supply system comprises a central control system, the traction transformer, a 2AC-DC-AC conversion system, a photovoltaic power generation system and a hybrid energy storage system, the traction transformer comprises a first power supply arm and a second power supply arm; the 2AC-DC-AC conversion system comprises an AC/DC converter and a DC/AC converter. The AC/DC converter is used for converting alternating current of two power supply arms of the traction transformer into direct current and connecting the direct current into a direct current bus of the 2AC-DC-AC conversion system; the DC/AC converter inverts direct current on the direct current bus into single-phase alternating current to supply power to a traction network; the photovoltaic power generation system and the hybrid energy storage system respectively comprise a photovoltaic module and an energy storage module; according to the invention, centralized access of new energy along the railway and on-site utilization of photovoltaic green power are realized, and meanwhile, the power supply electric energy quality and stability of the traction power supply system are improved.
本发明公开了一种基于牵引变压器的多源柔性同相牵引供电系统,包括中央控制系统、牵引变压器、2AC‑DC‑AC转换系统、光伏发电系统和混合储能系统;牵引变压器包括第一供电臂和第二供电臂;2AC‑DC‑AC转换系统包括AC/DC变换器以及DC/AC变换器;AC/DC变换器将牵引变压器两供电臂的交流电转化为直流电接入2AC‑DC‑AC转换系统直流母线;DC/AC变换器将直流母线上的直流电逆变为单相交流电,为牵引网供电;光伏发电和混合储能系统分别包括光伏模块与储能模块;本发明实现了铁路沿线新能源的集中接入和光伏绿电的就地利用,同时提高了牵引供电系统的供电电能质量和稳定性。
Multi-source flexible in-phase traction power supply system based on traction transformer
基于牵引变压器的多源柔性同相牵引供电系统
23.08.2024
Patent
Elektronische Ressource
Chinesisch
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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