摘要
五相混台式步进电动机通常有十个极,相对的二个极属于一相,这二个极上线圈之间的连接特殊,即通电时二个极同为N极或S极。因此,不像其它多数步进电动机那样,一相绕组通电产生的磁通主要经本相的磁极闭合,而它是必须全部经其它相的磁极闭合。这就使得产生转矩的机理复杂化。本文运用每极每端(每段铁心的每极)电磁转矩相量的概念,分析一相绕组通电时各段铁心所有极下的磁状态,得知“极段转矩相量”的大小及相位,作出极段转矩相量星形图,合成便得出整个电机的电磁转矩相量。
Usually, there are 10 poles on the stator of a hybrid stepping motor. The poles which opposite each other constitute one phase. The special connection of the coils on these two poles is adopted, so that when the current flow the coils to make counter polarity on these two poles. Therefore, the magnetic flux produced by one excited phase winding, must closes by passing all other poles, rather than the conventional SM in which the flux closes through the poles of same one phase. For this reason, the producing torque mechanism became complex. In this article, applying the concept of torque phasor on every end of the poles, analyzing magnetic state on all poles of each core section, as one phase windting is excited, then the value and phase of polessection torque phasor, and star-figure are made out. The electromagnetic torque phasor of the whole motor is obtained by composition of them.
出处
《微电机》
北大核心
1989年第2期3-8,共6页
Micromotors
关键词
步进电动机
五相
混合式
原理
five-phase hybrid stepping motor, electromagntie torque phasor, poles-section torque phasor
