铁心

Core saturation and the rotor bar skin effects were directly taken into account in the field calculation. The adopted circuit equations are suitable for describing the stator windings and the special rotor-bar connections of BDFM. The waveform of supplied voltage source may be an arbitrary. Three-dimensional end effects were considered in the circuit parameter corrected by classical formulas. In addition, the coupling and constraint equations were used to handle rotor rotation without any process of remeshing.

其特点是：铁心饱和以及转子导条集肤效应可以直接在场的计算过程中加以考虑；采用的电路方程可以方便地处理无刷双馈电机定子绕组和转子端环的各种特殊连接方式，电压源可以是任意电压波型；三维端部效应可以通过传统的方法在电路参数中加以修正；采用耦合与约束方程来处理转子转动问题，而无须不断地对转子重新进行刨分。

The problems of amorphous alloy distribution transformer, such as the core structure, no load loss, noise, anti-short circuit ability, technical and economic questions, were mainly analyzed.

分析非晶合金配电变压器的铁心结构、空载损耗、噪声、抗短路能力、技术经济性等问题。

This paper introduces the technology of using bolt tensioning cylinder to press stator core of 200MW and 300MW turbogenerators manufactured by HEC.

介绍哈尔滨电机厂有限责任公司生产的 2 0 0MW和 3 0 0MW汽轮发电机，使用液压拉伸器压紧定子铁心的工艺过程，及其所带来的潜在的经济效益。

Two conductor segments of stator coil are inserted into a pair of slot, which is from first end surface of the stator iron core in six slots sidewise, and stator coil is jointed at end part of segments extended to side of second end surface of the stator iron core.

定子线圈为从定子铁心的第1端面侧向隔开6个切槽的切槽的各对中分别插入2个导体段(15)，并将向定子铁心的第2端侧面延伸的导体段(15)的端部接合而形成。

In the fourth chapter, using the magnetic vector potential as the unknown variable, a mathematical model for numerical calculation of the magnetic field and loss distribution in 3-phase 5-limb transformer core is presented.

第三章针对变压器铁心结构的特点，对各向异性非线性边值问题的有限元分析方法进行了详细的阐述，并推导出了实用的N-R格式及单元分析格式，对具有多媒质单元的有限元分析方法进行了介绍，为变压器铁心磁场及损耗分布的数值计算奠定了基础。

In order to prove this maximum power tracker, the coreless disc permanent-magnet of generator for wind generator is implemented in this thesis.

为了验证本追踪方法，本论文制作用於风力发电之盘式无铁心永磁发电机，此类型发电机无铁心结构，因此具有高效率及高功率质量比。

The regularities of magnetic field spatial distribution of ironless PM motor with Halbach array are generalized. Thirdly, magnetic fields of different topology Halbach array motor are investigated comparatively by a large number of calculations.

利用渐近边界条件法，定量地计算了在定转子均无铁心的情况下电机内部及周围磁场的大小，总结出了Halbach阵列无铁心永磁电机磁场的空间分布规律。

There is no ferromagnetic material in the outside of ironless PM motors airgap. Because of this characteristic, airgap magnetic field of ironless PM motor belongs to 3-dimentions (3-D) open boundary magnetic field. Engineering problem of open boundary magnetic field is a hot research issue in the computation electromagnetics field recently.

无铁心永磁电机气隙外没有铁磁材料，其自身的结构特点决定了无铁心永磁电机的气隙磁场属于三维开域磁场，开域磁场工程问题的计算是近年来计算电磁学的研究热点之一。

A feasible method for location of multipoint earthing faults of transformer iron-core based on infrared thermal imaging is developed and proved in this paper, the temperature feature of kinds of material faults is summarized during the imitating test of locating faults.

首次提出并验证了采用红外热成像技术定位变压器铁心多点接地故障的方法及其可行性，通过对变压器铁心多点接地故障的模拟试验，总结出在定位过程中不同故障物质的温度特征。

The influences of Halbach magnet axial length on the leakage flux density are analyzed. The relationship between the key design parameters of motor, such as leakage coefficient and the calculated length of the armature, and the structure parameters of motor are obtained.

通过大量的计算，探讨了Halbach阵列永磁电机在转子无铁心情况下影响气隙磁密的各种因素，分析了不同Halbach磁体轴向长度对端部漏磁的影响规律，给出了无铁心永磁电机漏磁系数、电枢计算长度等主要设计参数随电机结构尺寸的变化规律。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。