A track regenerative braking energy recovery system is divided into an energy absorption and conversion device and an energy storage device, the energy absorption and conversion device adopts an inversion feedback type braking principle, and the operation principle of the energy absorption and conversion device is that when the voltage of a direct-current bus exceeds a set value due to regenerative braking of a train, an inverter starts to act and absorbs current from the direct-current bus; the regenerative direct current is inverted into power frequency alternating current to be fed back to the alternating current power grid; the energy storage device adopts a novel hybrid energy storage technology, the hybrid energy storage technology can give full play to the characteristics of high energy density and low price of a lithium battery and the characteristics of high power density and quick response of a super capacitor, and the stability of traction network voltage can be effectively realized in the whole braking process.
一种轨道再生制动能量回收系统,该系统分为能量吸收转化装置和储能装置,能量吸收转化装置采用逆变回馈型制动原理,该部分运行原理在于当列车再生制动造成直流母线电压超过设定值时,逆变器开始动作,从直流母线吸收电流,并将再生直流电逆变成工频交流电反馈回交流电网;储能装置采用新型混合储能技术,混合储能技术可以充分发挥锂电池高能量密度、价格低的特点和超级电容高功率密度、快速响应的特点,在整个制动过程中可有效实现牵引网电压的稳定。
Rail regenerative braking energy recovery system
一种轨道再生制动能量回收系统
2023-09-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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