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For the single way filament winding of a cone structure , the corresponding mathematics model and winding pattern for four axes winding machine were derived by using space analytic geometry.

本文对锥体结构的单向纤维缠绕，应用空间解析几何的知识建立了相应的数学模型，并建立了在相应于四轴缠绕机上的缠绕线型，同时利用VB6。

The validity of the method is demonstrated by comparison with results obtained from tests on a practical drive system. The influence of damper winding on performances of self-controlled synchronous motor, especially on commutation process and commutation limit, are analyzed in detail. It is shown that damper winding has little effect on increasing overload capability. The influences of field winding on torque, commutation process and overload capability are analyzed also.

然后在此基础上，分析了阻尼绕组和励磁绕组对自控式同步电动机性能的影响，包括对电磁转矩、换流过程和过载能力的影响，重点分析了阻尼绕组对换流过程和换流极限的影响，讨论了阻尼绕组在自控式同步电动机中的作用，得出阻尼绕组对提高过载能力作用不大的看法。

The high-voltage power supply includes an output unit having a primary winding connected in parallel with a capacitor and a secondary winding inducing a voltage by current flowing in the primary winding.

该高压电源包括输出单元，其具有与电容器并联连接的初级绕组、和通过在初级绕组中流动的电流而感应电压的次级绕组。

Factors that affect the mutual inductance coupling have been studied based on this model, including magnetic core material, position of the primary winding, winding method of the secondary winding and its position.

基于此仿真模型，研究了影响非接触电能传输系统互感耦合的因素，包括磁芯材料、原边导线的位置、副边线圈的绕线方式以及绕线位置等因素。

This paper designed a PMLSM with long primary winding and short secondary winding used in the electromagnetic launch system, whose primary winding was divided into two sections.

设计了用于电磁弹射的长初级短次级PMLSM，初级绕组采用分段结构，减小了绕组漏电感，降低了系统无功功率。

The instantaneous power theory was employed to analyze the instantaneous power of the control winding and the control scheme for the DWIG system with diode bridge load was obtained. The component of the currents on the control-winding flux determines the instantaneous reactive power, and the component on the perpendicular direction of the flux decides the reactive power. The former one influences the DC voltage of the diode bridge on power winding and the latter one influences the DC voltage of the static excitation controller of control windings.

基于瞬时功率理论，推导出按控制绕组磁场定向时控制绕组的瞬时功率，在此基础上分析了带整流桥负载的定子双绕组感应电机发电系统在宽转速运行时的电压调节机理，即：控制绕组电流在控制绕组磁场及其法线上的分量，分别决定着发电系统功率绕组整流桥直流侧电压和控制绕组静止励磁控制器(static excitation controller，SEC)直流侧电压，据此提出宽转速运行时DWIG发电系统电压控制策略。

If both shunt and series winding are present, the series winding is wound on top of the shunt winding.

两种绕组可以同时存在，此时串励绕组绕在并励绕组之上。

Product circumstances: Company main products are two distinct types: 1, chemical fiber textile equipment, including a variety of accessories such as: chuck shaft, reciprocating shafts, roller shafts and other products more than 2,000 species, JRT1 ~ JRT16 series winding machine, of which 16 JRT16 melt-spinning spandex spindles winding machine for the national patent product, JRT1 Jilin winding head for high-tech products, all kinds of chemical fiber textile engineering in three production lines; 2, and the MTR railway passenger vehicles Valves products, such as: height adjustment valve, pressure valve, connecting rod and so on.

产品情况：公司主要产品分两大类：1、化纤纺织设备，其中各种配件如：卡盘轴、往复轴、槽辊等产品2000余种，JRT1~JRT16系列卷绕机，其中JRT16十六锭熔纺氨纶卷绕机为国家专利产品，JRT1卷绕头为吉林省高新技术产品，各种化纤纺织工程生产线三种；2、铁路客车及地铁车辆上的阀类产品，如：高度调整阀，差压阀、连杆等。

The present invention relates to a method for heuristically starting up DC brushless servo electric machine, including the following steps of (1) after powerup of an increment type photoelectric encoder, electrifying a stator winding two by two with identical time interval to generate six-directional stator winding resultant magnetic fields;(2) detecting six different angles rotated by the rotor within identical tiny time interval by the photoelectric encoder;(3) selecting most positive value rotation angle from the six different angles, and determining maximum torque corresponding to the stator winding resultant magnetic field, and implementing servo startup using the maximum torque as constant starting torque;(4) after the zero-point signal of the photoelectric encoder occurring, switching to servo operation with normal constant torsion.

本发明直流无刷伺服电机试探启动方法，采用如下步骤：(1)增量式光电编码器上电后对定子绕组采用相同的时间间隔两两通电，顺序产生六个方向的定子绕组合成磁场；(2)由增量式光电编码器检测出转子在相同的微小时间间隔内分别转过的六个不同的角度；(3)从转子六个不同的角度中选出最大正值的转角，确定相应定子绕组合成磁场对应的最大转矩，并以该最大转矩为恒定启动转矩进行伺服启动；(4)当增量式光电编码器零点信号出现后，切换为正常恒转矩伺服运行。

First,it mainly utilizes analytics to deduce formula of slot leakage reactance.It considers three instances,including monolayer-slot,multilayer isometric-slot and multilayer anisometric-slot.Then,the analytics and the FEM are utilized to calculate slot leakage reactance of stator winding of prototype of Powerformer and compare their results.Second,the theory of utilitzing FEM to calculate the reactance of Powerformer is simply introduced,including stable reactance,transient and subtransient reactance.Specially,the saturated influence of the stable reactance is considered.Then, the results are analysed.Final,it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding.

首先是用解析法推导出Powerformer定子绕组槽漏抗的计算公式，考虑了单层圆形半闭口槽、多层等半径圆形半闭口槽和多层不等半径圆形半闭口槽三种情况，并对Powerformer样机的定子绕组槽漏抗用解析法和有限元法进行了计算，并比较其结果；其次，简要介绍了有限元法计算Powerformer电抗参数的原理，包括稳态电抗、瞬态电抗和超瞬态电抗，对稳态电抗考虑饱和影响，对结果进行分析；最后，介绍定子绕组谐波磁势对电机运行性能的影响并对定子绕组谐波磁势进行了分析。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。