The invention relates to an urban rail transit traction peak shifting and valley filling stable recovery energy storage power supply quantity control method. More than one urban rail transit traction power supply unit and an energy intelligent control system for controlling each urban rail transit traction power supply unit to work are included. The system is characterized in that each urban rail transit traction power supply unit comprises a traction step-down substation, a bidirectional converter, an energy storage device and a bidirectional converter. The control method comprises the steps of preparing before operation, detecting the energy intelligent control system before operation, and detecting whether the rail vehicle works or not by the energy intelligent control system. The impact of the feedback regenerative braking energy on the voltage of the contact network and the power grid needing the mains supply is reduced, the quality of network access electric energy is improved, and the size and the cost are greatly reduced due to the fact that the energy storage device is only used for absorbing a small part of energy.
本发明涉及一种城市轨道交通牵引错峰填谷稳定回收储能供电量控制方法,包括一个以上城市轨道交通牵引供电单元及控制每个城市轨道交通牵引供电单元工作的能量智能控制系统;特点是每个城市轨道交通牵引供电单元均包括牵引降压变电所、双向变流器、储能装置及双向变换器;其控制方法是:运行前的将准备工作,运行前能量智能控制系统的检测工作,以及能量智能控制系统检测轨道车辆是否工作运营。其减小了回馈的再生制动能量对接触网电压和需市电电网的冲击,改善了入网电能质量,由于储能装置只是用来吸收少部分能量,体积和成本都大大降低了。
Urban rail transit traction peak shifting and valley filling stable recovery energy storage power supply quantity control method
城市轨道交通牵引错峰填谷稳定回收储能供电量控制方法
2021-11-30
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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