Hybrid through traction power supply system emergency management and control method based on multi-device cooperation
Hybrid through traction power supply system emergency management and control method based on multi-device cooperation
- Neue Suche nach: WANG XIN
- Neue Suche nach: TU CHUNMING
- Neue Suche nach: GUO QI
- Neue Suche nach: HOU YUCHAO
- Neue Suche nach: XIAO FAN
- Neue Suche nach: LI JUNHAO
- Neue Suche nach: LAN ZHENG
- Neue Suche nach: WANG XIN
- Neue Suche nach: TU CHUNMING
- Neue Suche nach: GUO QI
- Neue Suche nach: HOU YUCHAO
- Neue Suche nach: XIAO FAN
- Neue Suche nach: LI JUNHAO
- Neue Suche nach: LAN ZHENG
The invention discloses a hybrid through traction power supply system emergency management and control method based on multi-device cooperation, and the method comprises the steps: firstly determining system parameters before a fault, then detecting whether a unit in a two-phase-single-phase converter of a traction station breaks down or not in real time, merging a certain input side of the two-phase-single-phase converter into a traction network if a gamma unit breaks down, and carrying out the emergency management and control of the hybrid through traction power supply system. According to the method, fault emergency operation of the traction station is achieved, power sharing of the two input sides of the two-phase-single-phase converter is achieved by controlling power flowing of an alpha unit or a beta unit of the traction station, and therefore negative-sequence current of the public power grid side is restrained, and if the alpha unit or the beta unit breaks down, fault emergency operation of the traction station is achieved. If yes, the corresponding input side of the two-phase-single-phase converter is connected into the traction network according to the fault position, and the output power of the gamma unit is reduced to achieve power equalization of the two input sides of the two-phase-single-phase converter. The method is simple and effective, and through coordination and cooperation of all devices in the traction station, the hybrid through traction power supply system can realize emergency operation and fault recovery when a certain unit of the two-phase-single-phase converter breaks down.
基于多装置协同的混合式贯通牵引供电系统应急管控方法，先确定故障前系统参数，再实时检测牵引站两相‑单相变换器内单元是否发生故障，若γ单元发生故障，则将两相‑单相变换器的某一个输入侧并入牵引网，实现该牵引站故障应急运行，并通过控制该牵引站α单元或β单元功率流动实现两相‑单相变换器的两输入侧功率均分，从而抑制公共电网侧负序电流，若α单元或β单元发生故障，则根据故障位置将两相‑单相变换器对应输入侧并入牵引网，并降低γ单元输出功率实现两相‑单相变换器两输入侧的功率均分。本发明简单有效，通过牵引站内各装置的协调配合，使混合式贯通牵引供电系统能在两相‑单相变换器某单元发生故障时实现应急运行与故障恢复。
Dokumentinformationen
Hybrid through traction power supply system emergency management and control method based on multi-device cooperation
基于多装置协同的混合式贯通牵引供电系统应急管控方法
2023-01-13
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 |
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