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Emergency Operation Processes in the Thyristor Rectifier of an Alernating Current Electric Locomotive

机译:交流电力机车晶闸管整流器的应急运行过程

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摘要

In an electric locomotive, the failure of any element or unit of the control system does not have to cause damage to power circuits or emergency operation. A control strategy for a four-zone ac-dc power converter with a discharge diode branch, which is connected in parallel to the rectified current circuit, is proposed. Such control improves the switching conditions of thyristors and allows reduction in the switching time and a decrease in the equivalent inductive reactance of the ac circuit; in addition, it provides reservation due to simultaneous switching of paralleled thyristor branches and skipping of control pulses in any control zone.
机译:在电力机车中,控制系统的任何元件或单元的故障都不必造成电源电路损坏或紧急操作。提出了一种带放电二极管支路的四区域交流-直流功率转换器的控制策略,该支路与整流电流电路并联。这种控制改善了晶闸管的开关条件,并减少了开关时间,并减小了交流电路的等效感抗。此外,由于并联晶闸管分支的同时切换和任何控制区中控制脉冲的跳跃,它提供了保留。

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