阻尼绕组

With the calculating the damping circuit parameter of traction coil on SS4G type electric locomotive ,the reasons of the frequently burning down is analyzed,and the method of calculating damping circuit parameter is concluded.

通过对 SS4G型电力机车牵引绕组阻尼电路参数的计算，分析了阻尼电路频繁损坏的可能原因，并归纳了阻尼电路参数的计算方法，最后提出了阻尼电路参数的改进建议。

In order to take account of the effect of magnet field harmonic,the phase winding loop model is usually used in square wave propulsive motor.

为了充分考虑磁场各次谐波的作用，方波推进电动机一般采用相绕组回路的数学模型，模型中绕组参数的测量和计算较为复杂，其中带阻尼绕组的多相永磁同步推进电动机的绕组电感测量和计算尤为困难。

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。

Chapter 5 deals with some variables's basic relations of synchronous /full-wave rectifier/LCR circuit, the effects of parameters on output voltage ripple and dynamic characteristics are presented.

第五章着重分析了凸极同步发电机一桥式整流—LCR电路的一些基本运行规律。研究了影响输出直流电压脉动和动态特性的主要因素，以及滤波参数、电机饱和、阻尼绕组对特性的影响。

A model of self-controlled synchronous motor (including double armature winding synchronous motor) is developed which takes account of damper winding according to its actual structure. The damper winding is represented by two sets of loop on each axis based on multi-loop method and bar currents may be calculated.

本文首先建立了包括参数计算在内的自控式同步电动机（包括双电枢绕组自控式同步电动机）的数学模型，该模型采用多回路法处理阻尼绕组，便于计算阻尼条的电流，可以比较准确地分析阻尼绕组对电机运行性能的影响。

It is taken as an object researched that a large pumped storage machine with unsymmetrical damper winding, radial pole and three-piece-arc-pole shoe.

本文以具有不对称阻尼绕组、向心式磁极和三段圆弧极靴结构的大型抽水蓄能电机作为研究对象。

The in-depth analyses and simulation calculations of two simplification methods are carried out in this paper. Then it is pointed out that the equivalent d- and q-axes damper winding model is not suitable for calculating the internal short circuits because the concept is not applicable in this situation, and the errors caused by it are too obvious to be accepted in electrical engineering; while the approximate damper cage model is acceptable since it not only meets the accuracy requirement of electrical engineering but also saves calculating time for computers.

本文对阻尼回路的2种简化方法进行了深入分析和仿真计算，指出等效d轴和q轴阻尼绕组模型应用于电机内部短路计算时，物理概念上存在缺陷，且会造成过大的误差、在工程上无法容许；而近似阻尼笼的处理方法既能满足工程精度要求，又可节省计算时间。

The effect of pole-arc coefficient、 air-gap、 damper winding and magnet circuit saturation for no-load property of harmonic winding by it . So, in this article, we bring forward a new idea and method to analyze no-load property of harmonic winding of synchronous generator by third harmonic excitation.

根据三段法，分析了极弧系数、气隙、阻尼绕组和磁路饱和等因素对谐波空载特性的影响，为分析谐波励磁同步发电机谐波绕组空载特性提供了一种新的思路和分析方法。

The system performance simulation includes starting and breaking characteristics and steady-state characteristics, the results validate the rationality of the model. On above basis, the fault-operation performance of the system is simulated to demonstrate the phase redundancy speciality of multi-phase motor ;then the effect on performance of synchronous motor from damper winding is analyzed to indicate the its significance.

系统性能仿真主要包括系统起动性能，突变特性(突加负载，升频，降频等)，稳态运行性能仿真，仿真结果验证了所建立模型的合理性，在此基础上，对系统故障运行进行仿真，表明了系统相冗余特性；且分析了阻尼绕组在同步电机中的作用，说明了阻尼绕组的必要性与重要性。

A novel model of synchronous machine with damping winding for the transient analysis of power systems is presented.

提出了一种新的适用于电力系统机网暂态过程数值仿真的有阻尼绕组同步电机模型。

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。