定子

Check the polarity of the stator windings and connections.

检查定子绕组的极性及其连接应正确。

These selected windings can be shifted with respect to the stator windings.

这些选择绕组可以转移方面的定子绕组。

These methods have been verified through the relevant research experts, proved that it is effective to the diagnosis and monitoring of induction motor stator windings.

这些方法均已经过了相关研究人员的分析验证，证明了对异步电机定子的监测和诊断是有效的。

An algorithm based on operation times (T_0) of zero voltage space vector is presented. The d-axis current can be derived from the PI controller, whose inputs are T_0 and one constant T_0~*.

与普通弱磁方法相比，该方法有效地避免了电机参数变化对控制精度的影响，在加快动态响应速度的同时，降低定子电流的幅值。

An algorithm based on operation times (T_0) of zero voltage space vector is presented. The d-axis current can be derived from the PI controll er, whose inputs are T_0 and one constant T_0*.

与普通弱磁方法相比，该方法有效地避免了电机参数变化对控制精度的影响，在加快动态响应速度的同时，降低定子电流的幅值。

In duty ratio control technique,a zero voltage vector is applied in each sampling period to reduce the torque ripple.

与矢量控制相比，直接转矩控制在静止的定子坐标系中进行计算，省去了复杂的坐标变换和电流调节

They included the effect of zero voltage vector in PMSM DTC, the select principle of space voltage vector, the control of stator magnet chain, the enhance of system dynamic performance, and the realization of PMSM DTC system.

主要包括零电压矢量在PMSM DTC中的作用、电压空间矢量的选择原则、定子磁链的控制方式、系统动态性能的保证、PMSM DTC系统的实现等问题，给出了系统的软件设计方法。

In the present paper,the inheritance,morphological and anatomical char-acters,physiological and biochemical characteristics,the shoot and leaf growinghabit of the curly dwarf mutant "Zha′ai 76"from Malus baecata,and the re-productive charateristic of"Pingyi Tiancha"an apomictic type of Malus hupe-hensis,are systematically studied.

本文对山定子皱叶矮生型突变系&扎矮76&的遗传、形态、解剖、生理生化、枝叶生长等特性和苹果属无融合生殖类型平邑甜茶的生殖特性进行了系统研究，并探索了通过两种资源的杂交选育种子繁殖的苹果矮化砧品种的可能性，获得以下结果

The structure of the system, control thought and control strategy of the double-stator brushless electric machine are discussed.

探讨了双定子无刷电机的系统构成、控制思想和控制策略。

Megaspore development and abortion of"Pingyi Tiancha"Compar-ing with regular developing megaspore of normal M.baccata,the megasporemother cellof"Pingyi Tiancha"could form mono-nucleus embryo sacby perhaps irregular meiosis,then most of sexual MES depauperatedand degenerated,finally aborted,or only a few further developed.Of asexualembryo sac,one or more large cells at the chalazal end of nucellus developed in-to one to more asexual embryo sac initials.After the competition between sexu-al embryo sacand asexual embryosac,most ovules only had one asexual embryo sac matured.

平邑甜茶大孢子的发育和败育与正常发育的山定子大孢子对比，平邑甜茶大孢子母细胞经减数分裂能形成单核胚囊，之后多数有性胚囊萎缩、退化而败育，只有极少数进一步发育；而无性胚囊则从胚珠合点端1个或多个较大的珠心细脆形成并首先发育为一个或多个无性胚囊原始体；经过有性胚囊和无性胚囊以及无性胚囊和无性胚囊之间的竞争，多数胚珠只有一个无性胚囊成熟。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。