Flywheel energy storage system and method suitable for rail transit
Flywheel energy storage system and method suitable for rail transit
- Neue Suche nach: MA FENGMIN
- Neue Suche nach: WU MEINA
- Neue Suche nach: YU YANG
- Neue Suche nach: LU YUNZHENG
- Neue Suche nach: ZHANG RONG
- Neue Suche nach: HUANG SHUO
- Neue Suche nach: HUANG NING
- Neue Suche nach: SHEN JIANTAO
- Neue Suche nach: MA FENGMIN
- Neue Suche nach: WU MEINA
- Neue Suche nach: YU YANG
- Neue Suche nach: LU YUNZHENG
- Neue Suche nach: ZHANG RONG
- Neue Suche nach: HUANG SHUO
- Neue Suche nach: HUANG NING
- Neue Suche nach: SHEN JIANTAO
The invention belongs to the related field of power distribution and power supply equipment, and discloses a flywheel energy storage system suitable for rail transit, which comprises a direct current switch cabinet, a bidirectional converter and a flywheel energy storage device, and is characterized in that an upper opening of the direct current switch cabinet is in bidirectional connection with a rail transit contact network, and a lower opening of the direct current switch cabinet is in bidirectional connection with an input end of the bidirectional converter; the output end of the bidirectional converter is in bidirectional connection with the flywheel energy storage device, and the bidirectional converter is used for realizing corresponding charging and discharging control based on a real-time voltage detection value of the rail transit overhead line system; the flywheel energy storage device executes corresponding charging and discharging according to different starting states of the bidirectional converter. The invention further discloses a corresponding method. According to the invention, the impact of overvoltage on a power grid can be more effectively absorbed when the locomotive is braked, energy is fed back to the power grid when the locomotive is started, and the problem of overlarge device voltage stress caused by large stray inductance in a long commutation loop in the prior art is effectively solved at the same time.
本发明属于配电供电设备相关领域，并公开了一种适用于轨道交通的飞轮储能系统，其包括直流开关柜、双向变流器和飞轮储能装置，其中直流开关柜的上口与轨道交通接触网双向相连，它的下口与双向变流器的输入端双向相连；双向变流器的输出端与飞轮储能装置双向相连，并用于基于轨道交通接触网的实时电压检测值来实现相应的充放电控制；该飞轮储能装置则依照双向变流器的不同启动状态，从而执行对应的充放电。本发明还公开了相应的方法。通过本发明，能够更加有效地在机车制动时吸收过电压对电网冲击、在机车启动时将能量反馈到电网，同时有效解决了现有技术中长换流回路中由于杂散电感较大导致的器件电压应力过大问题。
Dokumentinformationen
Flywheel energy storage system and method suitable for rail transit
一种适用于轨道交通的飞轮储能系统及方法
2023-01-06
Patent
Elektronische Ressource
Chinesisch
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