The invention discloses a direct-current traction power supply system and method for accessing a photovoltaic power generation system into urban rail transit, and the system comprises an in-station direct-current bus wiring point and a line direct-current traction network wiring point which form an input point of rail transit traction power supply; the photovoltaic power generation system is electrically connected with an input point of the rail transit traction power supply so as to supply power; the photovoltaic power generation system comprises a grid-connected device, a converter and a photovoltaic array, the photovoltaic array is electrically connected with the converter so that voltage transmitted by the photovoltaic array can be converted and boosted through the converter, the converter is electrically connected with the grid-connected device, and the grid-connected device is provided with a direct-current output bus. And the direct current output bus is electrically connected with a direct current bus wiring point in the station, or the direct current bus is electrically connected with a line direct current traction network wiring point, so that electric energy generated by the photovoltaic array is converted and then is directly input to the direct current bus wiring point in the station or the line direct current traction network wiring point. The technical problems of high centralized grid connection loss and low power generation efficiency of traditional station photovoltaic power generation are solved.
本发明公开了光伏发电系统接入城市轨道交通直流牵引供电系统及方法,系统包括:车站内直流母线接线点、线路直流牵引网接线点,二者构成轨道交通牵引供电的输入点;光伏发电系统,其与轨道交通牵引供电的输入点电连接、以进行供电;其中,光伏发电系统包括并网设备、转换器和光伏阵列,光伏阵列与转换器电连接,以通过转换器对光伏阵列输送的电压进行变换升压,转换器与并网设备电连接,并网设备具有直流输出母线;直流输出母线与车站内直流母线接线点电连接,或直流母线与线路直流牵引网接线点电连接,以将光伏阵列产生的电能经过转化后直接输入至车站内直流母线接线点或线路直流牵引网接线点。解决了传统车站光伏发电集中并网损耗高、发电效率低的技术问题。
Direct-current traction power supply system and method for connecting photovoltaic power generation system to urban rail transit
光伏发电系统接入城市轨道交通直流牵引供电系统及方法
18.02.2025
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 / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme |
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