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People are required to know and analyze the operating axes of rotary kiln in time in practice, in order to adjust and maintenance it in reason. So The Great Wall Aluminum Corporation of China bankrolled for studying the microcomputer real-time monitoring system of large-scale rotary kiln and commissioned Central South University to develop it.Based on analyzing and comparing the status quo of the monitoring system of rotary kiln, this paper brings forward a new method of monitoring the operating status of rotary kiln. It analyses the system-error and the configuration and demonstrate the feasibility in detail. In the design of hardware configuration it analyzes the principle and speciality of the tailor-made eddy current transducer and PCI-1713 analog input card and the multilevel supervisory network.

本论文首先在分析和比较同内外回转窑检测系统现状的基础上,首次提出了新的回转窑运行状态检测方法,并从系统误差及可行性角度进行了详细的分析和论证;其次,在监测系统硬件结构设计中,详细地分析了多级管理网络的实现,PCI-1713双缓冲区高速数据采集装置的原理、特点、工作过程,以及针对该系统恶劣的工作环境、特定性能要求而设计的特制电涡流传感器的原理、波形特性及性能特点,及为了减小非线性误差而采用计算机软件进行多段线性插补方法实现误差补偿;另外,在系统软件设计中,详细地分析了高速数据采样软件、智能信号处理软件、系统监测软件的实现,分析了采用模糊自适应滤波方法有效地滤除本系统恶劣环境下的各种干扰因素,并简要地介绍了系统分析软件的功能。

On the basis of direct modelling method by using extended Kalman filter, a new method combining extended Kalman filter with adaptive extended Kalman filter is presented to model gyro drift directly from rotate angle of turntable. Extended Kalman filter has great estimation error, what is more, may be divergent if the model and noise statistic are not accurate or wrong. The new method solves the problem of general extended Kalman filter by using fictious noise with timevarying statistic to compensate the linearized model error of extended Kalman filter. The parameter estimators of single-axis and double-axis servo test are designed from it.

本文深入研究了根据伺服试验数据进行陀螺仪漂移误差模型建模的方法,在应用广义Kalman滤波器直接建模的方法基础上,针对广义Kalman滤波器对于不精确或错误的模型和噪声统计,估计误差较大,甚至滤波发散的缺陷,借助于用带时变噪声统计的虚拟噪声补偿广义Kalman滤波的线性化模型误差的新思想,提出了用广义Kalman滤波和自适应广义Kalman滤波算法相结合的方法由转台的转角数据直接建模陀螺仪漂移误差模型,并设计了陀螺仪单轴伺服和双轴伺服测试时参数估计的滤波器。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题:定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案:分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算,分析出对于电流型逆变器在采用定子磁场定向时,其性能同时具有矢量控制和直接转矩控制两者的优势,并对电压型逆变器在转子磁场定向下的模型进行了仿真研究;建立异步电机非线性模型,推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程,并做出了仿真结果,建立异步电机在非线性模型下的矢量控制调节器的PI参数设计,在实际应用中,若忽略电机电感的动态变化,可以根据当前的磁路饱和状态而在线修正电感参数,从而将非线性方程线性化,降低控制器的复杂度;考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出,本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题;推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通,用于实现高性能的矢量控制算法,并给出了仿真结果;推导出了电动汽车恒转矩给定的闭环回馈制动系统,实现了电动控制模型和制动模型的统一,而且结合铅酸电池最大充电电流的要求,为制动转矩在线给定建立了数学模型;设计了基于双DSP系统的高性能矢量控制器软硬件框图,并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Recombinant expression vector k14/c-myc-paav was constructed bearing the mouse c-Myc cDNA derived by the skin specific human keratin 14 promoter, then the linear vector was microinjected into the two pronucleus of the C57BL/6 fertilized eggs to produce transgenic mice.256 microinjected eggs were transferred, 6 of the foster mothers were pregnant and 44 adult mice were produced, two of them were positive transgenic mice confirmed by PCR and Southern blot analysis, transgenic rate was about 4%.

以CMV-PAAV载体为基础载体,以皮肤特异人K14(人角蛋白14)基因启动子替换原质粒中的CMV启动子后,在其多克隆位点区依次插入鼠c-Myc基因的cDNA序列和gfp基因的编码序列,构建了高效表达c-Myc基因的真核表达载体。通过双原核显微注射技术,将线性化的载体DNA注入到C57BL/6小鼠受精卵的两个原核中,然后将注射后状态良好的胚胎移植到代孕鼠的输卵管中,共移植了256枚受精卵,6只受体怀孕,最终获得44只成年小鼠。

The linear relationship between boiling temperature and salt concentration was verified by the experimental results and thermodynamical theory.

实验结果和热力学基本原理确证了体系的沸点与加入盐浓度间的线性关系,计算了各双液组成下体系的盐效应常数,分析了实验中产生&异常&现象的原因,探讨了溶液内部粒子相互作用的规律,通过用相律、盐效应理论、静电理论、溶剂化理论的解释,得到了一些具有理论价值的结论。

It would result in the fluctuation of the sensitivity of the system because of the existing of the dispersions of the reflection-induced retardance,Verdet constant and the linear birefringence inside the sensing head.

而在传感头中主要是由单层保偏反射膜的反射相移、光学玻璃的Verdet常数以及光学玻璃内的线性双折射这三个因素的色散特性,使得光学电流互感器的灵敏度随光源波长的变化而改变。

With the parameters varies within the range of our study, the simulation results compared with their corresponding monochromatic output show that: the wavelength accumulation effect upon the output is small; therefore, it is reasonable and feasible to employing the monochromatic model to deal with the BGOCS systems with broad-band source; the difference between the accumulation output and the monochromatic output decreases with the increase of the current to be measured in the total wavelength accumulation effect; the effect of the Verdet constant is the greatest, that of the Reflection-Induced-Retardance is intermediate, that of the linear birefringence is the smallest.

仿真结果表明,通过和其相应的单色光模型输出的对比,在研究对象相应参数的具体范围内:波长积累效应对系统输出的影响相对于单色模型输出来说很小,小于10~(-4),因此在实际研究中采用单色模型是合理的和可行的;在总的波长积累效应中,宽带系统输出与单色模型输出的差距随着待测电流的增大而减小,而且影响最大到最小的因子依次是Verdet常量、反射相移和线性双折射。

As the spectral width (Full width half maximum: FWHM) range from 6nm to 60nm, the simulation results show that the effect of the variation of the FWHM upon the output is small. When only the Verdet constant is considered, the output increased slowly with the increase of the FWHM. The simulation results are verified by the experiment.

当光源光谱宽度在6nm到60nm之间变化时,不同谱线宽度光源对系统输出影响的仿真结果表明:光源谱宽变化对系统输出的影响相对于其单色模型来说,相对变化小于10~(-3),因此光源谱宽变化对系统输出的影响较小;如果完全消除了线性双折射和反射相移,则系统输出随光源谱宽的增加有微弱的增加:由于Verdet常量的影响最大,所以系统输出随光源谱宽的增加有微弱的增加;实验结果验证了该结论。

The OH airglow volume emission rate has an obvious response to the breaking gravity wave and atomic oxygen.

在重力波的传播过程中,氢氧大气成分的水平和垂直分布均受到了不同程度的影响,以氧原子的响应最为明显,而其中重力波破碎在氧原子水平分布上的反应则是非线性重力波过程的一个重要表现;另外,分析显示,重力波的非线性传播对OH气辉的峰值分布由明显影响,小尺度重力波的传播有时会引起OH气辉出现奇异的双峰分布,重力波的破碎现象也可以从对气辉的观测中反映应出来,这对利用气辉观测研究重力波传播特性有非常重要的指示意义。

The breaking of gravity wave accelerates the downward transport of atomic oxygen, some smaller-scale structures appear on the horizontal distribution of atomic oxygen number density , and other chemical species are also affected due to the chemical reaction with atomic oxygen and the propagation of gravity wave. The OH airglow volume emission rate has an obvious response to the breaking gravity wave and atomic oxygen. The nonlinear propagation of smaller vertical wavelength gravity waves can induce the double-peaked structure in the OH airglow. The results can explanation some sporadic measurements of OH airglow and can provide a good indication for studying the characteristic of nonlinear gravity wave by using OH airglow measurement.

在重力波的传播过程中,氢氧大气成分的水平和垂直分布均受到了不同程度的影响,以氧原子的响应最为明显,而其中重力波破碎在氧原子水平分布上的反应则是非线性重力波过程的一个重要表现;另外,分析显示,重力波的非线性传播对OH气辉的峰值分布由明显影响,小尺度重力波的传播有时会引起OH气辉出现奇异的双峰分布,重力波的破碎现象也可以从对气辉的观测中反映应出来,这对利用气辉观测研究重力波传播特性有非常重要的指示意义。

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