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空载特性     
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  no-load characteristics
     Solution of No-Load Characteristics of the Powerformer With ANSYS
     利用ANSYS求解Powerformer发电机的空载特性
短句来源
     The missing coil operation of TQ-25-2 turbogencrator is presented in this pape The short circuit and no-load characteristics, the ring current of winding bra nches and the short circuit test of two phases are given, and winding po tential is analyzed.
     本文介绍了TQ—25—2型汽轮发电机的丢线圈运行情况。 给出了短路与空载特性、绕组支路环流,作了两相短路试验,分析了绕组的电势。
短句来源
     The conclusions such as the conditions for generator operation,the no-load characteristics,the characteristics of nature power and the behaviors of the machine under control of constant voltage/frequency ration derived in this paper are important for the further researching for application of the machine to wind-turbine generator.
     阐述了该种电机发电运行的条件、发电机空载特性、自然功率特性与恒压频比控制特性,从而为该种电机用于风力发电及其采用压频比控制的研究提供参考。
短句来源
  no-load characteristic
     The No-load Characteristic Calculation Model of the Hybrid Excitation Rare Earth Permanent Magnet Synchronous Generator
     组合励磁稀土永磁同步发电机的空载特性计算模型
短句来源
     The no-load characteristic of VSCF double-fed induction generator
     变速恒频双馈感应发电机的空载特性
短句来源
     Secondly, the two mathematic models of 2D and 3D are established by the finite element software—ANSYS, the distribution of air gapmagnetic field is solved, the 2D and 3D characteristic curve of Powerformer at no-load are obtained. The no-load characteristic can better approach to that of the test value.
     其次,利用有限元软件ANSYS,对Powerformer建立二维和三维的数学模型,并对电机模型进行有限元分析,求解了电机的气隙磁场分布,获得二维和三维的空载特性曲线,从而得到Powerformer的空载特性
短句来源
  idle load characteristics
     Idle Load Characteristics and Winding Parameters Calculation of Twelve-phase Propulsive Synchronous Motor
     十二相同步电机空载特性及其绕组参数计算
短句来源
     Considering the relations between idle load characteristics and armature winding parameters of the salient-pole propulsive synchronous motor(SPSM)with its structure,stator tooth and magnetic saturation,the analysis of numerical method for the back electromotive force calculation of SPSM is given under various exciting current values.
     针对凸极式同步推进电机的空载特性及其绕组参数与电机结构、定转子齿槽、磁场饱和等紧密相关的问题,分析了在不同励磁电流下同步推进电机相反电势的数值计算方法,提出了采用电机磁场能量微动法计算相绕组的参数,并对一台十二相同步推进电机的绕组参数及其空载特性进行了计算和测量。
短句来源
     Idle Load Characteristics and Winding Parameters Calculation of Multi-phase Propulsive Synchronous Motor with Damper Windings
     带阻尼绕组的多相同步推进电机空载特性及其绕组参数的计算研究
短句来源
     The idle load characteristics and armature winding parameters retate closely to the structure, tooth ratio and core saturation of the multi-phase salient-pole propulsive synchronous motor (SPSM).
     凸极式同步推进电机的空载特性及其绕组参数与电机结构、定转子齿槽、磁场饱和等紧密相关.
短句来源
  “空载特性”译为未确定词的双语例句
     Syncronous Generator Unloaded Property Simulation by Utilization of ANSOFT Software
     利用ANSOFT软件对同步发电机空载特性进行仿真
短句来源
     In this paper, the FEM (Finite Element Method), which is the most important in Numerical Methods, is utilized to calculate the operation characteristic of the synchronization generator.
     本文运用有限元方法 ,在完全模拟同步发电机实际运行工况的条件下 ,通过精确计算发电机内部电磁场的分布情况 ,计算了同步发电机的基本特性曲线 ,包括 :短路特性、空载特性、负载特性、调整特性和外特性。
短句来源
     The modelling of unloaded property simulation of three phase synchronous generator utilizing Maxwell 2D of Ansoft corporation is introduced.
     基于ANSOFT公司的Maxwell 2D的仿真环境,建立了三相隐极同步发电机的空载特性仿真模型。
短句来源
     The improved testing bench can carry out the beltwork experiment,torque-speed characteristic experiment of the electro-motor,speed regulation experiment,starting characteristic experiment,open-circuit characteristic ex-periment of generators and the external characteristic experiment.
     改进后的实验台可进行带传动实验,电动机的机械特性实验、调速实验、起动性能实验,发电机空载特性实验、外特性实验。
短句来源
     A thorough discussion on the design requirement of the circuit breakers' spring operating mechanism,the design process of the openning or closing switch mechanism, the tripping mechanism, energy storage mechanism and simulant test device is made.
     对断路器弹簧操动机构的设计要求,以及分、合闸弹簧机构、弹簧操动机构的空载特性、脱扣机构、储能机构以及弹簧操动机构模拟试验装置的设计过程进行了全面论述。
短句来源
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  no-load characteristic
Different pressures lead to a no-load characteristic which is linear in the 5-20 mN range, suggesting excellent elastic properties of the ligamentum anulare.
      
  其他


The paper introduces four fundamental circuit diagrams and their principles of rudder steer follow-up system.With a view to reduce the capacity of electrical machines in the system,the author analyses the function of saturated extent of magnetic circuit of the generator,the non-load characteristic of the excitor and the mechanical characteristic of the motor.Besides,in selecting the capacity of electrical machine,the correct duty rating of electrical machine,working environment and practical resistance-torque...

The paper introduces four fundamental circuit diagrams and their principles of rudder steer follow-up system.With a view to reduce the capacity of electrical machines in the system,the author analyses the function of saturated extent of magnetic circuit of the generator,the non-load characteristic of the excitor and the mechanical characteristic of the motor.Besides,in selecting the capacity of electrical machine,the correct duty rating of electrical machine,working environment and practical resistance-torque curve of the rudder-stock should be taken into consideration. Advanced technique and economical indexes in driving system of the rudder steer can be obta- ined through corrective seleetion of a gear ratio of transmission gear and rate speed of the motor, while an optimum gear ratio depends upon the least stored energy of running parts. In calculation of the transitional state characteristics,the author suggests the rule for discr- iminating the stability of a simplified linear follow-up system.With the help of property equation, further research on the effect of parameters upon stability may be made.For non-linear follow-up systems,the author considers that the electrical-mechinical transitional state of follow-up system may be obtained through the calculation of the differential equations by applying the limited multiplication method in order to observe the performance of driving system and its stability. Based upon practical experience,common problems of regulation and regulated methods have been summarized,of which the regulation of excited windings in the exeitor and the balanced resistors are emphatically pointed out.It has been found that the feed-back winding of the genera- tor has an effective result to reduce remained magnetism of the generator and overcoming“crept” of the motor produced by remained magnetism. The standard series of rudder steer follow-up system should possess the least grade of power,the most universality and the wide range of application.Through practice,the author suggests some circuit diagrams of rudder steer follow-up system and some opinions about the design of electrical machines.

本文介绍了四种基本的舵杌随动控制电力拖动系统的线路和原理。从降低系统中各电机容量的这个要求出发,分析发电杌磁路饱和程度、激磁机空载特性、电动机机械特性对拖动系统中各个电机的容量选择的意义。此外,在选择电机容量时,还必须考虑电机的确切工作制、工作环境和实际的舵杆阻力矩曲线。正确地选择电动机的额定转速和传动装置的传动比,可以获得舵机拖动系统的先进的技术经济指标,而传动装置的最佳传动比是以转动部分储能最少的原则来确定的。在动态特性的计算中,作者提出了简化的线性随动舵机稳定性判别法则,通过其中的特征方程式,还可以研究系统中各参数对于稳定性的影响。对于非线性直流同拍式随动舵机,作者认为采用有限增量法,通过对于十个独立的微分方程的运算,可以描绘出该随动舵机的电气、机械过渡过程,以此便能观察拖动系统的运行过程和稳定性。文章最后,根据实际经验,总结了调整的一般问题和调整方法,其中着重指出对于激磁机二组磁通方向相对的激磁绕组和平稳电阻的调整。经验表明:发电机电压负反馈绕组对于减弱发电机的剩磁和克服由此而产生的电动机的“爬行”会有显著的效果。作者认为随动舵机的标准系列应该具有最少的功率等级、最大的通用性和最大的应用范...

本文介绍了四种基本的舵杌随动控制电力拖动系统的线路和原理。从降低系统中各电机容量的这个要求出发,分析发电杌磁路饱和程度、激磁机空载特性、电动机机械特性对拖动系统中各个电机的容量选择的意义。此外,在选择电机容量时,还必须考虑电机的确切工作制、工作环境和实际的舵杆阻力矩曲线。正确地选择电动机的额定转速和传动装置的传动比,可以获得舵机拖动系统的先进的技术经济指标,而传动装置的最佳传动比是以转动部分储能最少的原则来确定的。在动态特性的计算中,作者提出了简化的线性随动舵机稳定性判别法则,通过其中的特征方程式,还可以研究系统中各参数对于稳定性的影响。对于非线性直流同拍式随动舵机,作者认为采用有限增量法,通过对于十个独立的微分方程的运算,可以描绘出该随动舵机的电气、机械过渡过程,以此便能观察拖动系统的运行过程和稳定性。文章最后,根据实际经验,总结了调整的一般问题和调整方法,其中着重指出对于激磁机二组磁通方向相对的激磁绕组和平稳电阻的调整。经验表明:发电机电压负反馈绕组对于减弱发电机的剩磁和克服由此而产生的电动机的“爬行”会有显著的效果。作者认为随动舵机的标准系列应该具有最少的功率等级、最大的通用性和最大的应用范围。通过初步实践的总结,作者提出随动舵机标准系列的建议线路和对电机设计、装置结构等方面的若干意见。

This paper introduces the method for testing load, no load and short circuited character of a DC genrator with Z-80 single board microcomputer. It has many advantages in comparison with the old test method with the indicating instruments. The paper presents hardware, software block diagrams and the methods dealing with several problems.

本文介绍了用TP—801单板微型计算机测试直流发电机的空载特性、负载特性及短路特性的方法。与过去用指针式仪表测试相比,有很多优点。文中给出了软件、硬件框图以及对几个问题的处理方法。

The Nonlinear 2D magnetic field in a large waterwheel generator is solved by F.E.M., in which the variations of the field along the axial direction are considered with the effective length and method of conversion. The open circuit characteristic and the no-load tooth M.M.F. computed by F.E.M.are compared with those calculated by magnetic circuit method.

本文首先提出考虑电机轴向长度差异时电机,内二维磁场所满足的定解问题,然后用有限元法确定气隙的轴向有效长度,作为修改算法的基准长度.数值分析结果表明:用有限元法求出的空载特性与传统"磁路"方法求出的特性基本一致;用两种方法求空载感应电势,结果相近.最后就空载定子齿磁势的计算提出一些看法.

 
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