查询词典 induction current

In this paper, the basic principle of the conventional slip energy recovery induction motor drive is discussed. Two kinds of slip energy recovery induction motor driving systems with high factors are discussed, and the performance analysis of these methods is compared. On the basis of above, a new type of three-phase and four-line slip energy recovering drive is proposed.

本文首先从普通串调原理入手，简要分析了影响串调系统功率因数的主要因素；在对三相四线双晶闸管串级调速、新型GTO串级调速等几种高功率方案进行分析与比较的基础上，提出了一种新型三相四线制双IGBT串级调速控制方案。

This paper presents MMF of a five-phase induction motor with concentrated and full-pitch windings by means of fourier analysis and winding function , which indicates theoretically that the five-phase induction motor with concentrated and full-pitch windings can provide more electromagnetic torque and higher torque density than others.

本文运用傅里叶分析和绕组函数的方法，推导了集中整距绕组五相感应电动机的磁动势，得出集中整距绕组五相感应电机能更好地增加电机的电磁转矩、提高转矩密度。

The state equation of induction motor with G-type parameters was established and a flux observer was designed based on U-N model. The speed adaptive law was deduced by the theory of Lyapunov stability. A method of model reference adaptive speed estimation based on the full order flux observer was proposed and a scheme of induction motor direct torque control without speed sensor was studied.

建立了基于异步电机G-型参数的状态方程，给出了基于U-N模型的定子磁链观测器；基于李雅普诺夫稳定性理论推出了速度自适应律，给出了基于这种全阶磁链观测器方案的模型参考自适应速度辨识方法。

Cell lines were co-tranfected with bi-plasmids and cultured at 1% O〓 condition, luciferase assay demonstrated that all of the expression systems with different domains could be hypoxia-activated. GAL-CAD achieved more than 100-fold induction in A549 cell and more than 40-fold in HepG2; expression level of the system markedly increased after addition of glycin arm, almost 10-fold enhancement in HepG2 cell. Because basic expression also increased, the induction fold by hypoxia decreased.

双质粒共转染不同细胞株后，在1％O〓环境下培养24h，荧光素酶活性检测结果提示含不同结构域的表达系统均有受缺氧激活的能力，其中GAL-CAD在A549中获得100倍以上的诱导，在HepG2中获得40倍以上的诱导；加入甘氨酸臂后该表达系统的转录活性大为增强，在HepG2细胞中增强了10倍以上，但是由于基础表达也有所增加，受缺氧诱导的倍数下降。

KT and GA_3 withsuitable consistency can promote the growth of calli, Added with glycin can enhance therate of induction, but the callus is ill-fitted to the cell suspension culture. CM is inhibitingfor callus induction from albumen.

添加甘氨酸虽然能提高胚乳愈伤组织诱导率，但其诱导的愈伤组织不适宜用于液体悬浮培养，椰乳则对胚乳愈伤组织的诱导有抑制作用。

The principles of Indirect Stator-quantities Control is proposed in the paper. Based on predicting models of induction machine, the ISC control system is completed. The structure of induction motor dreive system is shown, and the experiment results are presented.

本文介绍了间接转矩控制的基本原理，分析了基于异步电动机预测模型的间接转矩控制系统的组成及实现方法，给出了ISC的控制算法和电机预测模型，以及该系统的实时控制实验结果。

For motor asynchronous vector control system for electrical parameters and load factors such as fluctuations in the deterioration of the problem, design a two-dimensional fuzzy controller as a self-adjusting induction motor vector control system the speed regulator, the induction motor vector Control system not only dynamic and static performance have been improved, but also is robust.

针对异步电机矢量控制系统因电机参数变化和负载波动等因素性能变差的问题，设计了一种二维自调整模糊控制器作为异步电机矢量控制系统的速度调节器，使异步电机矢量控制系统不仅动态和稳态性能都得到提高，而且具有较强的鲁棒性。

The furnace body's ф2200×1500 outer covering main body is made of 12mm steel plate,installed sensor in the lower part 45°of furnace body, the sensor is weight 2 ton induction iron cores made from top gear's W-151 the cold rolling 0.35m/m made by Wuhan Steel Silicon steel plate Factory, primary manufactured the water cooling coil from 10×10×2 copper pipe, and installed stainless steelwater cooling cover, the power Frequency Induction melting Furnace 's metal melting fluid namely the sensor sencondary loop, the entire electric furnace is a transformer actually, match a 6 grades self regulating transformer, shift gears by the electric tank control, the voltage may from low to high,divide 6 grade to rise to 380V, each grade of voltage is different, the output power is also different, the furnace temperature is also different along with different grade,so can suit smelting colored or black and so on different melting point metals, and may use as new furnace lining fireproof to smeltdiamantine drying furnace.

炉体由12mm钢板制成Ф2200×1500外壳主体，炉体下部45°安装有感应器，感应器由武钢硅钢片厂生产的最高档的W-151冷轧0.35m/m取向硅钢片制成重2吨感应铁心，初级由10×10×2铜管制成水冷线圈，并安装不锈钢水冷保护套，工频有芯熔炼炉的金属熔液即为感应器的次级线圈，整个电炉实际就是一个变压器，配套一台6档的自耦调压变压器，由电柜控制换档，电压可由低到高，分6级升到380V，每档电压不同，输出功率也不同，炉温也随档位不同而高低不同，以适应熔炼有色或黑色等熔点不同的金属，并可作新炉衬耐火冶金砂烘炉之用。

The finite element method has been used to analyze and calculate the space magnetic fields of wafer magnets and square magnets as well as sphere magnets. Vector magnetic potential, magnetic induction, magnetic force lines and magnetic induction isolines are obtained which provide theory basis for the application of magnetic field.

采用有限元法对磁疗中常用的圆片磁源、方片磁源、球形磁源的空间磁场进行了分析和计算，得到了上述磁源空间磁场的矢量磁位、磁感强度、磁力线和磁感强度等值线等参数，为磁源的使用提供了理论依据。

The callus induction of licorices was easy. And the MS+1.0 mg/L NAA+1.0 mg/L 2, 4-D +1.0 mg/L 6-BA was the best medium to cotyledons, hypocotyls and radicles. And all the induction rates were 100%. 4. In the study of callus regeneration, only obtain the regeneration plants of hypocotyls callus,and its frequency was 4.57%.

甘草离体再生中愈伤组织的诱导较为容易，三种外植体子叶、下胚轴和胚根均以MS+1.0 mg/L NAA+1.0 mg/L 2，4-D+1.0 mg/L 6-BA为愈伤组织诱导的最佳培养基，在此培养基上，3种外植体愈伤组织诱导率均达到100%。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。