The invention relates to the technical field of electrified railway traction power supply, and discloses a rail transit junction energy router and a control method of the rail transit junction energy router. Comprising a back-to-back bidirectional converter, an alpha-side adaptive impedor, a beta-side adaptive impedor, a direct-current voltage-stabilizing converter, an alpha-side step-down transformer, a beta-side step-down transformer and an energy storage device, the back-to-back bidirectional converter comprises an alpha-side AC-DC converter, a beta-side AC-DC converter and an intermediate DC link capacitor; aC ports of the two AC-DC converters are respectively connected with secondary sides of corresponding step-down transformers after passing through adaptive impedors, and primary sides of the two step-down transformers are respectively connected in parallel to power supply arms at two sides of an AC traction substation; the energy storage device is connected in parallel with the middle direct-current link capacitor; and the inductance end of the direct-current voltage-stabilizing converter is connected to a power supply arm of the hub direct-current traction network through a laid cable. According to the invention, peak load shifting and regenerative braking energy recycling of the system are realized, and the electric energy quality of the system is improved.
本发明涉及电气化铁路牵引供电技术领域,公开了一种轨道交通枢纽能量路由器及其控制方法,能量路由器安装于枢纽附近的交流牵引变电所,包括背靠背双向变流器、α侧自适应阻抗、β侧自适应阻抗、直流稳压变流器、α侧和β侧降压变压器及储能装置;背靠背双向变流器包括α侧AC‑DC变流器、β侧AC‑DC变流器和中间直流环节电容;两个AC‑DC变流器的交流端口分别经一个自适应阻抗后与对应的降压变压器的二次侧连接,两个降压变压器的一次侧分别并联到交流牵引变电所两侧的供电臂上;储能装置与中间直流环节电容并联;直流稳压变流器的电感端通过敷设电缆连接到枢纽直流牵引网的供电臂上。本发明实现了系统削峰填谷和再生制动能量回收利用,改善了系统电能质量。
Rail transit hub energy router and control method thereof
一种轨道交通枢纽能量路由器及其控制方法
2024-04-09
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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