- 更多网络例句与场绕组相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper sets up the mathematic model of heat transfer and oil flow, and finishes the calculation of oil flow distribution and temperature field of winding in large natural oil circulation power transformer with oriented cooling structure.
本文建立了传热与流动数学模型,完成了大型自然油循环导向冷却方式变压器的油流分布和绕组温度场计算。
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is applied to construct the three-dimension model for finite element analysis. Short circuit and open circuit of the field winding and the teeth and slots structure of the rotor are discussed. An appropriate three-dimensional mesh is made. The corner point problem of conductor is eliminated. Furthermore, a new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time.
在汽轮发电机失磁异步运行转子三维涡流场数值计算模型中,应用了〓法建立了三维有限元计算模型,考虑了转子绕组的开、短路状态及转子齿槽结构,形成了合适的三维剖分网格,解决了三维电磁场有限元计算中角点奇异的问题,创立了一种新的稀疏矩阵的存储格式以及基于该格式的预处理复数共轭梯度法从而减少内存开销和加快了求解速度。
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Some new method is presented in this paper: A. An Integrated parameters computation method to analysis asynchronous operation of the turbine generator is given, including the equivalence of short circuit and open circuit of field windings, deducing boundary condition of 〓 method and computing frequency parameters. B. A new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time. C. An equivalent method of vacuum is presented, and effectively eliminate the effect of corner point and accelerate convergence of PCCG method. D. Coupling the computation of electromagnetic and temperature field is discussed and model for computing temperature field of the turbine generator rotor at asynchronous operation is built.
文中提出了以下新方法:(1)在失磁异步运行转子三维涡流场计算中提出了完整的参数计算方法,其中包括励磁绕组开、短路的等效,〓法边界条件的推导及频率参数的计算方法;(2)提出了铁心内空气域的等效方法,有效地解决了开槽引起的角点奇异问题,并提高了方程组的迭代收敛速度;(3)在〓法有限元模型中,创立了一种能节约内存、提高计算速度的压缩存储矩阵格式,并建立了基于该格式的方程组解法;(4)提出了涡流电磁场和温度场两种不同场计算的合理结合方法,建立了转子三维稳态和时变温度场的有限元计算模型。
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It used the finite element method to analyze the magnetic distribution within the effective width of primary lamination and the circuit method to simulate the end of primary winding.
阐述了深槽式单相直线感应电机的结构特点和运行原理,提出了场路结合的分析模型(其中用有限元方法分析铁心叠厚范围内的磁场分布,用电路来等效初级绕组端部)。
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In order to solve torsional deflection strength of transformer's spiral winding, the axial current effect on radial magnetic field is analyzed.
针对变压器螺旋绕组扭转变形强度问题,就轴向电流分量对辐向磁场的影响进行了分析,从而为进一步进行大型变压器瞬态涡流场的数值计算提供了依据。
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To reflect in the thermal field model the fact that the thermal resistance is affected by the factors such as load current, cooling wind speed, gas channel gap and environmental temperature, the modification relationship is built up.
本文根据稳态温度场有限元计算的结果,分别建立单匝电缆和气道的热路模型,将两者结合组成以单匝电缆为单元的绕组稳态温升热路模型。
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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。
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In this paper, arrangement scheme of a novel multi-star phase shifted pole changing coil was given and the methods to determine coil split ratio were analyzed. According to electromagnetic theory, 2D electromagnetic mathematical model in which stator windings were spitted coil was developed, and magnetic field distribution of the novel motor at starting was solved by finite element method, starting performance of motor was calculated. Based on energy method, rotor slot leakage reactance under different poles and different loads were calculated, and the variation of rotor slot leakage reactance with loads was gotten. Based on time-step finite element method, distribution of branch current in stator windings and operating performance were calculated and analyzed when branch was unbalance, the method to calculate circulating loss in stator windings of novel multi-star phase shifted pole changing motor was given, and the effects of the loads variation and degree of unequilibrium on circulating loss in stator windings were calculated and analyzed.
论文系统的给出了采用分裂线圈法新型多星形移相变极绕组的排列方案,进一步分析线圈分裂比的确定方法;根据电磁场理论,建立了定子为分裂线圈绕组的电机二维电磁场数学模型,并采用场路耦合法求解了新型多星形移相变极电机起动时的磁场分布,计算了电机起动性能和基于能量法计算了不同极数下起动时转子槽漏抗和不同负载时转子槽漏抗,得出转子槽漏抗随负载变化的规律;采用时步有限元法计算分析了定子绕组支路不平衡时支路电流的分布情况及运行性能,给出了新型多星形移相变极电机定子绕组环流损耗的计算方法,分析比较了负载的变化和支路不平衡度大小对定子绕组环流损耗的影响。
- 更多网络解释与场绕组相关的网络解释 [注:此内容来源于网络,仅供参考]
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amplidyne exciter:微场电机放大器激磁机
ampliator winding | 放大绕组 | amplidyne exciter | 微场电机放大器激磁机 | amplidyne generator | 电机放大器, 微场电流放大机
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field service compressor:易卸压缩机
field service compressor 铁卸压缩机 | field service compressor 易卸压缩机 | field shunt 场分路绕组
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Sayers winding:赛耶斯绕组
Saybolt viscosity 赛波特粘度 | Sayers winding 赛耶斯绕组 | sb fet 肖特基势垒栅场效应晶体管
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field spider:凸轮转子
field shunt 场分路绕组 | field spider 凸轮转子 | field strength at receiver 接收机场强
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Sayers winding:赛耶斯绕组
Saybolt viscosity ==> 赛波特粘度 | Sayers winding ==> 赛耶斯绕组 | sb fet ==> 肖特基势垒栅场效应晶体管