The invention relates to a traction power supply network and a traction power supply system. The power supply network comprises a substation direct-current bus, a substation alternating-current bus and a power supply system. The power supply system comprises a rectification transformer and a diode rectifier. A high-voltage side of the rectification transformer is connected with the substation alternating-current bus. The power supply system further comprises a PWM bidirectional converter. A switching device is arranged on a low-voltage side of the rectification transformer, the low-voltage side of the rectification transformer is connected with an alternating-current side of the diode rectifier and an alternating-current side of the PWM bidirectional converter through the switching device,and a direct-current side of the diode rectifier and a direct-current side of the PWM bidirectional converter are connected with the substation direct-current bus. With the switching device, the power supply system in the power supply network can be compatible with the access of the diode rectifier and the PWM bidirectional converter at the same time, the converters can be flexibly switched through the switching device, the structural form is simple, and the transformation cost is low.
本发明涉及一种牵引供电网及牵引供电系统,其中,该供电网包括变电所直流母线、变电所交流母线和供电系统,供电系统包括整流变电压器和二极管整流器,整流变压器的高压侧连接变电所交流母线,供电系统还包括PWM双向变流器,整流变压器的低压侧设置有切换装置,整流变压器的低压侧通过切换装置连接二极管整流器的交流侧和PWM双向变流器的交流侧,二极管整流器的直流侧和PWM双向变流器的直流侧连接变电所直流母线。本发明供电网中的供电系统通过采用切换装置,可同时兼容二极管整流器和PWM双向变流器的接入,各变流器之间还可以通过切换装置进行灵活的切换,结构形式简单,改造成本低。
Traction power supply network and traction power supply system
一种牵引供电网及牵引供电系统
2020-06-30
Patent
Electronic Resource
Chinese
IPC: | 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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