新闻:龙游县锡膏印刷机专用步进电机HSTM42-1.8-D-60-6-1.2型录
从应用角度而言，两者各自优势可以从速度稳定性、加载负载稳定性、控制对象上进行对比。伺服驱动器一般控制同步电机，变频器一般控制异步电机。变频器主要功能是调速，伺服在调速、定位、精度上更高，功能也更强大。对升降速、高速启停、转矩控制要求非常高的行业与领域，伺服比变频有着明显的优势。当然，从控制原理上来讲，如果变频器匹配相应的编码器，也可以达到直流无刷矢量伺服电机的性能要求。
伺服驱动器发展了变频技术，在驱动器内部的电流环，速度环和位置环(变频器没有该环)都进行了比一般变频更的控制技术和算法运算，主要的一点可以进行的位置控制。
近年来，高端变频技术在不断发展，配合机电时间常数小的电机也能完成伺服的定位跟踪工程，特别是在大功率场合，伺服本身的功能就是快速定位跟踪，变频器做到这个程度那就是伺服了，目前从企业的发展来看，变频器厂家推出伺服产品，无论是在技术基础还是在销售渠道商都占据一定的优势，已经成为越来越多的变频器厂家的发展方向。
CH3700-3-S-B-G4-DL-H9CH3700-5-S-B-G4-DL-H9CH3700-10-S-B-G4-DL-H9CH3700-15-S-B-G4-DL-H9CH3700-20-S-B-G4-DL-H9CH3700-25-S-B-G4-DL-H9CH3700-30-S-B-G4-DL-H9CH3700-40-S-B-G4-DL-H9CH3700-45-S-B-G4-DL-H9CH3700-50-S-B-G4-DL-H9CH3700-60-S-B-G4-DL-H9CH3700-70-S-B-G4-DL-H9CH3700-80-S-B-G4-DL-H9CH3700-90-S-B-G4-DL-H9CH3700-100-S-B-G4-DL-H9CH3700-120-S-B-G4-DL-H9CH3700-140-S-B-G4-DL-H9CH3700-160-S-B-G4-DL-H9CH3700-180-S-B-G4-DL-H9CH3700-200-S-B-G4-DL-H9CH100-3-S-G4-DR-H0CH100-5-S-G4-DR-H0CH100-10-S-G4-DR-H0CH100-15-S-G4-DR-H0CH100-20-S-G4-DR-H0CH100-25-S-G4-DR-H0CH100-30-S-G4-DR-H0CH100-40-S-G4-DR-H0CH100-45-S-G4-DR-H0CH100-50-S-G4-DR-H0CH100-60-S-G4-DR-H0CH100-70-S-G4-DR-H0CH100-80-S-G4-DR-H0CH100-90-S-G4-DR-H0CH100-100-S-G4-DR-H0CH100-120-S-G4-DR-H0CH100-140-S-G4-DR-H0CH100-160-S-G4-DR-H0CH100-180-S-G4-DR-H0CH100-200-S-G4-DR-H0CH200-3-S-G4-DR-H0CH200-5-S-G4-DR-H0CH200-10-S-G4-DR-H0CH200-15-S-G4-DR-H0CH200-20-S-G4-DR-H0CH200-25-S-G4-DR-H0CH200-30-S-G4-DR-H0CH200-40-S-G4-DR-H0CH200-45-S-G4-DR-H0CH200-50-S-G4-DR-H0CH200-60-S-G4-DR-H0CH200-70-S-G4-DR-H0CH200-80-S-G4-DR-H0CH200-90-S-G4-DR-H0CH200-100-S-G4-DR-H0CH200-120-S-G4-DR-H0CH200-140-S-G4-DR-H0CH200-160-S-G4-DR-H0CH200-180-S-G4-DR-H0CH200-200-S-G4-DR-H0CH400-3-S-G4-DR-H0CH400-5-S-G4-DR-H0CH400-10-S-G4-DR-H0CH400-15-S-G4-DR-H0CH400-20-S-G4-DR-H0CH400-25-S-G4-DR-H0CH400-30-S-G4-DR-H0CH400-40-S-G4-DR-H0CH400-45-S-G4-DR-H0CH400-50-S-G4-DR-H0CH400-60-S-G4-DR-H0CH400-70-S-G4-DR-H0CH400-80-S-G4-DR-H0CH400-90-S-G4-DR-H0CH400-100-S-G4-DR-H0CH400-120-S-G4-DR-H0CH400-140-S-G4-DR-H0CH400-160-S-G4-DR-H0CH400-180-S-G4-DR-H0CH400-200-S-G4-DR-H0
新闻:龙游县锡膏印刷机专用步进电机HSTM42-1.8-D-60-6-1.2型录
L形结构件的有限元模型如图2所示。为分析结构的不同铺层方向对制造过程中回弹变形的影响，比较了L型结构的[]8，[/45/9/-45]2s及[9]8三种铺层情况，结果如图3所示，可见不同铺层方向对回弹角的影响较大。出现这样的变化趋势的原因是不同铺层的层合板L形构件在拐角处的径向及周向热应变及曲率收缩应变不同。对[/45/9/-45]2s种铺层，改变L形结构件的厚度,模拟回弹角度的变化，结果如图4所示，可见厚度的改变对回弹角的影响也很明显，随着厚度的增加，回弹角变小。
新闻:龙游县锡膏印刷机专用步进电机HSTM42-1.8-D-60-6-1.2型录
其实各位都忽略了一个问题，就是伺服电机都是同步电机，其转子转速就是电机的实际转速，不存在速度差，而变频器控制对象是异步电机，其实际转速跟转子转速存在着转差，所以它本身电机在速度就不是很稳定。
伺服的基本概念是准确、、快速定位。变频仅仅是伺服控制的一个必须的内部环节，伺服驱动器中同样存在变频(要进行无级调速)。但伺服将电流环速度环或者位置环都闭合进行控制，这是很大的区别。除此外，伺服电机的构造与普通电机是有区别的，要满足快速响应和准确定位。同步伺服的成本价格及其昂贵，这样在现场应用允许的情况下多采用交流异步伺服，这时很多驱动器就是高端变频器，带编码器反馈闭环控制。所谓伺服就是要满足准确、、快速定位，所以往往只有高端的产品才采用伺服系统。
新闻:龙游县锡膏印刷机专用步进电机HSTM42-1.8-D-60-6-1.2型录
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