6ES5490-8MA13在2015年全球电机系统能效论坛(Eemods)会议上,铜发展协会的可持续能源项目经理Richard deFay,提交了一份文件揭示了测试结果。
deFay在会议中之指出:“业界一致认为,永磁电动机的效率优于感应电动机,”CDA计划对永磁(PM)电机与铜转子电机(CRM)进行相对公平的同类系统比较,采用由永磁电机制造商指定的驱动器,以确定市场营销索赔的有效性
第一轮测试使用来自三个不同制造商的7.5HP(5.6KW)铜转子电机和永磁电机。该试验在北卡罗来纳州先进能源电机测试实验室进行,试验历时数月。
6ES5490-8MA13电机测试分三个阶段,都使用相同的变频器,根据电机速度和转矩值测试进行效率比较。
从两个阶段的研究可以看出,铜转子电机的效率比市售PM电动机更高。在第三阶段中,电机之间效率没有明显的差异。
“6ES5490-8MA13这个分析比较结果相当有趣,也表明必须要按照不同的马力速度对电机进行进一步研究,” deFay说道。“我们现在有机会进行进一步更大规模的评估,更准确地评价铜转子电动机技术”。
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