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6SL3351-6GH38-1AB3
当电机处于减速制动状态时,电磁转矩和负载转矩,方向相同,一起制动。
在不考虑效率的前提下,发电机的电磁转矩就是电动机的负载转矩。因为发电机的输出负荷就是就是输出电流,外面负载增加也就是电流增加,反映在发电机电磁转矩的增加。拖动发电机的电动机负载转矩当然也要增加,这就是能量在转换。考虑效率及机械损耗,电动机的负载转矩要稍微大于发电机的电磁转矩。
电磁转矩,电动机旋转磁场各极磁通与转子电流相互作用而在转子上形成的旋转力矩。是电动机将电能转换成机械能重要的物理量之一,至今仍是阻尼分析与控制的理论基础。
6SL3351-6GH38-1AB3
6SL3351-6GH38-1AB3
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