绕组

By using Fourier series,the relation between the value and harmonic of cogging force and the number of slot and pole was acquired.

对微型短初级永磁直线无刷直流电动机进行了优化设计研究，在电机槽数不变的情况下，设计不同的电机绕组分布方式和初级长度内对应永磁体的数目，并进行了齿槽力的分析和研究。

When the air usage volume is small, the coiling temperature and noise of motor do not exceed the allowable scope

在用气量小的情况下，应保障电机绕组温度和电机的噪音不超过允许的范围。

Motor speed is controlled by varying the current in the field windings.for example,when the amount of current flowing through the field windings is increased, the field strength increases, causing the armature wingdings to produce a larger counter EMF which slows the motor.conversely,when the field current is decreased, the field strength decreases, and the motor speeds up because the conter EMF is reduced.

调速控制的不同目前在外地windings.for例如，当电流流动量的通过外地绕组是增加，电场强度的增加，导致电枢wingdings产生较大的反电势而减慢motor.conversely当外地电流降低，电场强度降低，电机的速度，因为conter电磁场降低。

The coreless PCB transformer concept has not received much attention,probably because there are misunderstandings: that planar winding with a few turns printed on a PCB is almost like a 'short-circuit' and that magnetic core is an essential component in transformer construction.

无铁心印制电路板变压器的概念没有受到人们很多关注，多半是因为存在误解：（i平面绕组在印制电路板上只能印制几匝，差不多像是&短路线&；在变压器结构中，磁心是根本的元件。

The results of simulation show that three-winding single-phase capacitance motors with wye-connected drive ventilated machine load can proceed to AC braking to realize fast stopping. The capacitance number of changes can regulate system braking stopping time. When capacitance is certain, can establish the resistance to limit the electric current and electromagnetical torque in stator circuit during the braking process, regulating braking stopping time.

仿真结果表明，Y接法的三绕组单相电容电动机带通风机负载时可以进行交流制动实现快速停车；通过改变电容的数值可以调节制动停车的时间；当电容一定时，可以在定子电路中串联电阻来限制制动过程中的电流和电磁转矩，调节制动停车的时间。

Pollution discharge pump, adopting special big channel impeller structure, greatly increases feculency discharging ability, and effectively make solid particle with diameter being 50% of pump outlet diameter; the type 4 can be fitted with various protective devices according to customer's requests, including stator winding temperature-rise protection, bearing temperature rise protection, oil container leakage protection, etc to enhance the exploitation reliability; adopting inner flowing recycling system to use medium cooling electric machine section to make usage more safe.

排污泵采用了独特的大通道叶轮结构，大大提高了污物通过能力，能有效的通过直径为泵口径约50％的固体颗粒；本泵型4可根据用户的要求安装各种保护装置，包括：定子绕组温升保护、轴承温升保护、油室漏油保护等以提高电泵的使用安全性；可采用内自流循环系统，利用介质冷却电机部分，使用更加安全，同时，还可以利用此结构将电泵以干式固定形式安装；采用最新材料精制而成的机械密封，其使用寿命可达8000小时以上；可采用双导轨自动耦合安装装置，使机组的安装、维修方便、快捷；可根据用户的需要配备各种形式的排污泵专用控制柜以实现自动化管理。

The DC generator produces multiphase alternating currents in its armature windings, and a commutator on the armature shaft converts these alternating currents into a direct current output; or a homopolar generator produces a direct current without the need for a commutator.

直流发电机出示其骨架绕组多相交流电流和电枢轴上的一个换向器将这些交流电流转换成直流电流输出；或 homopolar 发电机一直流电流，而无需一换向器。

When a special function resolver is loaded, the additional air gap magnetomotive force due to the load current in output winding reduces the function pricision greatly.

当特种函数旋转变压器带负载时，输出绕组中出现的电流在气隙中建立的附加磁势，引起磁场分布畸变，导致函数精度显著下降。

Firstly analyzed the operation principle of BDFM;then used the method of parameters calculation based on magnetomotive force and magnetic conductance,and calculated the inductance parameters.

针对目前无刷双馈电机两套不同极数定子绕组之间，耦合能力弱而导致该类型电机功率密度低及性能指标差的问题，以结构简单易于制造的普通凸极磁阻转子BDFM为例，研究了转子极数对电机耦合能力的影响。

For the current misdistribution caused by contiguity effect between the exciting windings not being taken into account in traditional mathematical model, the bigger calculation error of harmonic voltages is brought out when the high frequency alternating current flows in the exciting windings.

传统的数学模型未考虑激磁绕组邻近效应引起的电流分布不均对输出电势的影响，从而会在高频下带来较大的谐波电势计算误差。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。