查询词典 in flux

Direct torque control is another high performance control technique of AC motor, it discard the decouple idea of vector control, but adapt flux oriented control and transient space vector theory, directly control stator flux and torque, it has the advantage of rapid torque response and less relying on stator parameters, but has the disadvantage of bigger torque ripple.

直接转矩控制技术是继矢量控制技术之后的又一种交流电机高性能控制技术，它摈弃了矢量控制中解耦的控制思想，采用定子磁链定向和瞬时空间矢量理论，直接对电机定子磁链和转矩进行控制，具有转矩响应快、对电机参数依赖小的优点，但它的不足之处就是存在转矩脉动。

The spatial distribution of intra-node flux and source were approximated by a new orthogonal quadratic polynomial expansion, and a second-order polynomial provided the spatial expansion of transverse-leakage. The neutron angular distribution of flux and transverse-leakage were represented by the S quadrature set.

节块内横向积分通量、中子源的空间分布使用新的正交二次多项式近似；横向泄漏项的空间分布使用二阶多项式近似；中子通量和横向泄漏的角度通过离散纵坐标S

On the basis of predicted flux values and experimental data, the controlling factors of osmotic flux were analyzed.

用模型进行通量预测，并结合实验结果对渗透通量的控制因素进行了分析。

Proposes a new method to calculate the heat transfer coefficients based on the superposition principle of heat flux i.e.using heat flux to calculate equivalent heat transfer coefficients.

通过对热流相加法处理地面问题的分析，提出了一种新的用于计算底层地面传热系数的方法，即由热流量计算地面的当量传热系数。

Third, based on the example of over proof on-load loss in 180MVA/220kV power transformer, the eddy loss in winding is analyzed with the leakage flux element software. Some conclusions with practical use are given. In order to reduce the load loss, primarily we should reduce radial leakage flux of transformer possibily.

运用漏磁场分析软件，以180MVA/220kV电力变压器负载损耗超标为例，进行详细分析，提出有工程实用价值的结论：降低变压器负载损耗，从根本上应尽可能减少变压器辐向漏磁。

The flux hysteresis controller was ignored in the constant torque region and an improved method was proposed to make the estimation of torque easier.The proper stator voltage space vector was selected based on the output of the torque hysteresis controller and the sector which the current rotor flux locates in.

摘 要：针对无刷直流电机直接转矩控制中磁链观测困难、控制复杂等问题，提出了一种应用于无刷直流电机二二导通方式下的新型直接转矩控制方法：在电机基频以下调速时，略去了常规的磁链观测控制环节，改进了转矩计算方法，通过转矩滞环控制选择所施加的空间电压矢量。

The vector plot of 3D magnetic flux and the surface plot for the radial component of magnetic flux density were obtained,which could show the feature of the MLF near defect expressly.

利用数学模型对漏磁信号进行了仿真分析，得到了三维磁通密度矢量图和它的径向分量曲面图，直观地显示了缺陷附近漏磁场的特点。

The preparation of 235 U targets and the recoil catcher assembly,determination of neutron flux by Au flux monitor,radiochemical separation and detection of 136 Cs and 137 Cs are studied.

主要研究内容包括：235U靶的制备；反冲捕集装置的设计加工；用Au作为中子监测器监测135Cs活化时的中子注量率；137Cs和136Cs的放化分离和测量。

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。

The summer variance between the NCEP reanalyze sensible heat flux and the sensible heat flux calculated by the data of weather station is basely consistent.

NCEP地面感热资料与根据地面站资料计算的地面感热在夏季的变化是基本一致的。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。