The invention discloses an eddy current braking force constant force control strategy and system of a high-speed maglev train, and belongs to the technical field of rail transit. According to the braking distance and the braking deceleration requirement, the needed minimum eddy current braking force is calculated, the constant braking force of eddy current braking is set to be not smaller than the minimum eddy current braking force, the relation between the train speed and the eddy current braking exciting current under the constant braking force condition is determined, and a relation model is obtained. Then, the train running speed is collected, the speed grade is analyzed, the exciting current needed by eddy current braking is judged based on the speed grade and the relation model, the final exciting current is obtained, a converter of the eddy current brake is controlled to output the final exciting current to a pole coil, and eddy current braking force constant force control is completed. According to the eddy current braking force constant force control strategy and system of the high-speed maglev train, the braking effect of the high-speed section can be improved, compared with a constant current control strategy, the braking distance is shortened, the braking time is shortened, heating of a pole coil is reduced, and the safety margin is improved.
本发明公开了一种高速磁浮列车的涡流制动力恒力控制策略及系统,属于轨道交通技术领域。根据制动距离和制动减速度要求,推算所需最小涡流制动力,设定涡流制动的恒定制动力不小于所述最小涡流制动力,确定在恒定制动力条件下列车速度与涡流制动励磁电流的关系,得到关系模型。然后采集列车运行速度,分析速度等级,基于速度等级和关系模型判断涡流制动所需励磁电流得到最终励磁电流,控制涡流制动器的变流器输出最终励磁电流至磁极线圈,完成涡流制动力恒力控制。本发明提供的高速磁浮列车的涡流制动力恒力控制策略及系统可以提高高速段的制动效果,相较恒流控制策略减小了制动距离以及制动时间,减少了磁极线圈发热,提高了安全裕量。
Eddy current braking force constant force control strategy and system of high-speed maglev train
高速磁浮列车的涡流制动力恒力控制策略及系统
2023-11-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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