A distributed direct-current traction power supply system based on a bidirectional converter device aims to realize optimization of a traction power supply system scheme, reduce equipment specifications and types, reduce equipment capacity, reduce action frequency of a steel rail potential limiting device, reduce leakage of stray current and facilitate energy conservation and efficiency improvement. The system comprises two independent external incoming line power supplies introduced from a local power grid, power is supplied to a substation along a project through a medium-voltage power supply looped network, the two independent external incoming line power supplies are introduced into a substation medium-voltage alternating-current bus through substation medium-voltage switches respectively, and the medium-voltage power supply looped network is connected with a substation medium-voltage alternating-current bus corresponding to a substation along a project through a substation medium-voltage switch. A distributed design is adopted, and one set of bidirectional converter device is arranged in each substation and serves as a traction power supply and vehicle regenerative braking energy absorption device.
一种基于双向变流装置的分布式直流牵引供电系统,以实现牵引供电系统方案的优化,减少设备规格种类、降低设备容量,降低钢轨电位限制装置的动作频率以及降低杂散电流的泄漏,有利于节能增效。包括从地方电网引入的两回独立的外部进线电源,通过中压供电环网向工程沿线的变电所供电,该两回独立的外部进线电源分别通过变电所中压开关引入变电所中压交流母线,该中压供电环网通过变电所中压开关与工程沿线的变电所对应的变电所中压交流母线相连。采用分布式设计,各变电所内均设置一套双向变流装置,作为牵引供电及车辆再生制动能量的吸收装置。
Distributed direct-current traction power supply system based on bidirectional converter device
一种基于双向变流装置的分布式直流牵引供电系统
2021-12-28
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 |
European Patent Office | 2021
|Direct-current traction power supply
Engineering Index Backfile | 1933
|European Patent Office | 2024
|Bidirectional converter traction power supply system, control method and readable storage medium
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