发电机

Create Jinfeng 62 (1.2MW) temperature model of mathematics and physics about permanent magnent synchronous generator in wind power, present basic hypothesis and boundary condition. select area that one slot opposite to calculate, utilize FEM calculate roter and stator temperature field. bring forward actual method, carefully analyse the result to generator temperature field, for example reduce coil insulation thickness, decrease conduction coefficient because insulation aging between circle, increase iron-core anisotropism conduction coefficient.

建立了金风62型(1.2MW)永磁同步风力发电机的二维温度场的数学和物理模型，给出了计算边界条件和分析假设条件，以一个槽所对应的电机计算区域，利用有限元方法计算发电机的定、转子温度场，详细分析了绕组线棒绝缘厚度减小、匝间绝缘老化致使导热系数减小、铁心各向异性导热系数提高等参数改进对于发电机温度场的影响。

In addition, we have series of related products: NZP3 series of stator argon arc welders, HXK series of digital-controlled commutator undercutter, intermediate frequency welders for electronic devices, welders for automobile generator blades, testing platforms for automobile generators , testing platforms for motor overall performance, production lines of automatically winding threads for generators stators, production lines of starter rotors, and etc..

此外还有机关产品：NZP3系列定子叠片氩弧焊机、HXK系列数控整流子下刻机、电子器件中频焊机、汽车发电机风叶焊机、汽车发电机测试台、电机综合性能试验台、发电机定子绕组自动嵌线成套生产线、起动机转子生产线等。产品遍布全国。

In addition, we have series of related products: NZP3 series of stator argon arc welders, HXK series of digital-controlled commutator undercutter, intermediate frequency welders for electronic devices, welders for automobile generator blades, testing platforms for automobile generators , testing platforms for motor overall performance, production lines of automatically winding threads for generators stators, production lines of starter rotors, and etc..

此外还有机关产品：NZP3系列定子叠片氩弧焊机、HXK系列数控整流子下刻机、电子器件中频焊机、汽车发电机风叶焊机、汽车发电机测试台、电机综合性能试验台、发电机定子绕线生产线、起动机转子生产线等。

The general mathematic model for analyzing the hydrogenerator with the internal armature winding faults is established by using the multi loop theory in this paper.

应用多回路理论建立水轮发电机定子绕组内部故障分析的通用数学模型，引入回路关联矩阵减少回路方程总数并自动形成各种故障形式的回路参数，对水轮发电机定子绕组内部故障的稳态性能进行仿真计算，探讨了水轮发电机定子绕组内部故障（如匝间短路、支路间短路等）规律。

In chapter eight, the new software system named"simulation and protection scheme analysis of synchronous generator with internal armature winding faults", is developed and introduced. This software can be broadly applied to the analysis and protection study of synchronous generator with internal armature winding faults.

该系统能方便地对任意尺寸、槽数、极对数、绕组型式以及不同中性点联接方式等的大型水轮发电机和汽轮发电机进行各种内部故障电气量的计算，同时能对内部故障保护方案进行优化组合并校核其灵敏度，可广泛应用于大型同步发电机定子绕组内部故障分析与保护方案研究等场合。

Based on the transient simulation program of stator winding internal faults in synchronous generator, this paper presents the effect of stator winding and damper bar resistance on transient and steady currents. It is very necessary to calculate precisely the resistance of stator winding and damper bar resistance in order to simulate fault correctly.

应用同步发电机故障暂态仿真程序分析了定子和转子回路的电阻对发电机故障暂态过程的影响，结果表明为了准确进行发电机内部故障暂态过程计算，应该全面考虑影响的各种因素，准确求取定子和转子回路的电阻。

A natural energy generator of multifunction is featured as setting solar energy cell array and wind force generator on black internal layer; setting turbine wind – force generator on chimney; connecting top end of hollow support with space above black internal layer and bottom end to residential area, planting area, breeding area and heat storage reservoir; adding cold air setting jacked layer and heat collecting unit or refrigerator in some cases.

一种多功能、自然能发电厂，包括透明大棚15，黑色内层16，太阳能电池阵列13，烟囱10，风力发电机11、26、12，空心支柱17，储热水库20，居住、种植、养殖区19，其特征是，黑色内层16上装有太阳能电池阵列13和风力发电机11、12、26，烟囱(10)上方装有涡轮式风力发电机5、8，空心支柱(17)上端与黑色内层(1 6)上方空间连通，下端与居住种植养殖区(19)和储热水库(20)连通。实施例2中有加设的冷气沉降夹层(30)和集聚热装置或冷冻机(32)、(35)。

Then, it compares the characteristics of many kinds of variable-speed and constant frequency wind turbine and concludes that the direct-driven PMSG wind turbine is the best choice.

接着比较了现存的各类型变速恒频风力发电机的优缺点，进而得出低速永磁同步发电机直接驱动型风力发电机的优越性。

Faults of power unit of generator excitation system have great influence on stable operation of generator.So,it is necessary to find and eliminate these faults quickly.

1引言发电机励磁系统是同步发电机的重要控制单元，对发电机运行的稳定性及可靠性有直接的影响。

One thing I noticed right away about my property is that most of the time, the wind is blowing. Almost from the moment I bought it, I had the idea of putting up a wind turbine and making some electricity, and later adding some solar panels. This is the story of how I did it. Not with an expensive, store-bought turbine, but with a home-built one that cost hardly anything. If you have some fabricating skills and some electronic know-how, you can build one too.

我注意到一件事情，那就是我所在的地方大部分时间在刮风，几乎是在我买到它时就想树立一台风力发电机来生产一些电，并且在晚一些时候增加一些太阳能电池板，以下就是我的故事，不用商店买来的风力发电机，而是自制的廉价的风力发电机，如果你有一些构造技巧和一些基本的电气知识，你也可以制作一个。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。