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电磁液冷缓速器制动力矩影响参数

Keywords: 电磁液冷缓速器,制动力矩,有限元仿真

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Abstract:

针对传统电涡流缓速器的风冷散热、热衰退问题严重的缺点,提出一种双凸极构造的电磁缓速器模型.在该缓速器的定子内设有液体通道,通过液冷措施及时排出缓速器工作时产生的热量,使其保持较低的温度;介绍了该缓速器的结构,在进行理论分析后,应用电磁场有限元分析专用工具,对缓速器的磁场和涡流场进行分析,详细讨论了电导率、励磁电流以及励磁电流饱和程度对制动力矩的影响.结果表明:随着电导率的增加,制动力矩逐渐趋于饱和;当励磁电流饱和时,随着励磁电流的增大,制动力矩不会明显地增加;当励磁电流的饱和程度不断增加时,制动力矩变化缓慢.

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