HS y场系统中的磁动势是由永磁和直流励磁相互作用而产生。
Magnetomotive forces in the HSY field system are produced by combined action of permanent magnets and dc field winding.
该方法以故障前后定子侧产生恒定磁动势为原则，对定子侧电流进行补偿。
The method compensates the stator current in the fault state in order to keep the magnetomotive force as that in normal state.
直流电动机中电枢磁动势的轴线位置是由电刷位置决定的，电刷具有箝位的功能。
In DC motor, the locality of axis of armature MMF was determined by the brush position, here the brush possessed a function of clamping.
直流电动机中电枢磁动势的轴线位置是由电刷位置决定的，电刷具有箝位的功能。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
另外，用两极之间的电流表示励磁绕组磁动势，对应于各极之间磁场的大小和方向。
Also, MMF of the field winding is represented as electric currents in the gap between poles, with regard to magnitude and direction of magnetic field at respective poles.
事实上，N极边和s极边由相同的励磁绕组励磁，这意味着模型中的磁动势只是实际磁动势的一半。
In fact, however, the N-pole side and the S-pole side are excited through the same field winding, which means that this model shows MMF that is only half the actual value.
在对电磁驱动微器件进行分类的基础上，详细分析了磁动势控制模型中不同类型电磁微器件的失稳特性。
Based on the classification of the electromagnetic actuated micro-devices, the instabilities of different kinds of electromagnetic micro-devices were analyzed under MMF-controlled models.
本文阐述了三相异步电动机延边三角形接法多路并联进线时磁动势不平衡的原因，并提出了相应的预防措施。
The paper expatiates on the reason of unbalanced magnetic motive force and its preventive measures for asynchronous motor with multipath extended delta connection.
根据等效整距集中绕组与实际绕组产生相等基波磁动势的原则，给出了实际定子绕组与转子绕组的总有效匝数表达式。
Based on the principle that an equivalent full-pitch, concentrated winding gives the same fundamental MMF as the actual one, the effective number of turns of the equivalent winding is obtained.
针对直流电动机中电枢磁动势的轴线位置由电刷决定的特征，提出了箝位概念，指出自控变频乃是箝位效应的直接后果。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
针对直流电动机中电枢磁动势的轴线位置由电刷决定的特征，提出了箝位概念，指出自控变频乃是箝位效应的直接后果。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
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