风机电动机高效率变极的设计原则  

Design Principle of High Efficiency Pole Change Motor of Fan

作　　者：钱罗奋[1] 

机构地区：[1]集美大学,厦门361021

出　　处：《电机与控制应用》2006年第7期17-20,24,共5页Electric machines & control application

摘　　要：从风机电动机的特点出发,以效率最高为优化目标,建立气隙磁密、转差率、极对数在高效率变极运行时的互相约束关系。以此约束关系作为选择变极方案、变极接法的依据,得出风机电动机高效率变极设计原则。Based on the characteristics of motor of fan, taking the maximum efficiency as the optimized object, the interactive restricting relation between air-gap-magnetic-tight, slip ratio, pole-pairs during the pole changing run with high efficiency was established. Based on this relation, the pole change arrangement and pole change connection were selected, and the principle of pole change design with high efficiency for motor of fan was obtained.

关 键 词：变极电动机 风机特性 变极调速 高效率 设计方法 

分 类 号：TM302[电气工程—电机]