The invention discloses a neutral section passing device and a neutral section passing control method and system thereof, and the neutral section passing device is applied to an electric drive systemof a train and specifically comprises a bidirectional DC/DC converter and energy storage equipment. The energy storage equipment is used for storing electric energy; and the bidirectional DC/DC converter is electrically connected with the energy storage equipment and is used for controlling the DC bus to output electric energy when the train is in the split-phase region, so that the DC bus keeps apreset constant voltage, and the preset constant voltage refers to the working voltage of the DC bus when the train works normally. Thus, this is achieved, although the direct current bus of the electric drive system cannot obtain electric energy supplement from the grid-side converter, under electric energy injection of the bidirectional DC/DC converter, the machine-side converter can still output electric energy to the locomotive motor to drive the locomotive motor to drive the train to run, so that the train does not decelerate during passing through the neutral section, and the speed lossof the train during passing through the neutral section is reduced or even avoided.
本申请公开了一种过分相装置及其过分相控制方法和系统,该过分相装置应用于列车的电驱动系统,具体包括双向DC/DC变换器和储能设备。储能设备用于存储电能;双向DC/DC变换器与储能设备电连接,用于在列车处于分相区时,控制其述直流母线输出电能,以使直流母线保持预设恒定电压,这个预设恒定电压指的是列车正常工作时直流母线的工作电压。这样一来,电驱动系统的直流母线虽然无法从网侧变流器得到电能补充,但在双向DC/DC变换器的电能注入下,依然能使机侧变流器向机车电机输出电能,以驱动机车电机带动列车奔驰,这样就使列车在过分相区期间不会产生降速,从而降低甚至避免了列车在过分相时的速度损失。
Neutral section passing device and neutral section passing control method and system thereof
一种过分相装置及其过分相控制方法和系统
2020-08-18
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 |
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