Taking the particularity of the connection scheme of novel converter transformer and its filter system into account, it's necessary to find out the relation between its commutated reactance and short-circuit impedances between windings and fundament frequency impedance of filter branch for impedance design of novel converter transformer and reactive power...
考虑到新型换流变压器及其滤波系统的接线方案较为特殊，了解其换相电抗与绕组之间的短路阻抗及阀侧滤波支路的基频阻抗之间的关系，对新型换流变压器的阻抗设计和阀侧无功补偿度的优化配置是十分必要的。
The vacuum pump will draw out the vacuum taking form with vacuum container inner air, oil removes bigger pellet by that the entrance pipeline receives the original filter, will enter and then the warmup jar inner under the external world oil liquid effect in atmospheric pressure, the oil amounts by that heating the oil to 40－75 ~C is that autocontrol enters the vacuum container inner by the automation oil level valve, this valve pass in and out of balance.
真空泵将与真空罐内的空气抽出形成真空，外界油液在大气压的作用下，油经过入口管道进初滤器消除较大的颗粒，然后进入加热罐内，经过加热到40－75℃的油通过自动油位阀，此阀是自动控制进入真空罐内的油量进出平衡。
It includes the following steps: taking filtration to the emulsion after physically mature and taking desalination by electrodialysis to the filtrated emulsion. The desalination by electrodialysis device includes emulsion pump, vertical filter, at least one forcing pump and at lest one electrodialysis desalination device that are connected by pipeline.
一种感光乳剂制备生产线的电渗析脱盐设备，其特征在于：包括乳剂泵、立式过滤器、至少一个压力泵和至少一个与压力泵对应的电渗析脱盐装置，乳剂泵、立式过滤器、压力泵和电渗析脱盐装置通过管路依次连接，压力泵和电渗析脱盐装置的数目相同。
This paper introduces the basic methods for designing the low-pass filter, taking Butterworth filter as an example.
文章以巴特沃思滤波器为例介绍低通滤波器的基本设计方法。
The invention relates to a synthesis method of N-acetylaminoglucose, which comprises dissolving D-glucosamine hydrochlorate and alcohol at the mass ratio of 2-2.5:100, adjusting the pH value of the solution to 9-10, filtering, taking the filter liquor, mixing and adding acetic anhydride at the 50-60wt% amount of D-glucosamine hydrochlorate, mixing and reacting for 2h, using absolute ethyl alcohol to recrystallizing, filtering and recrystallizing via water, to obtain rod-shape food grade N-acetylaminoglucose.
本发明涉及一种N-乙酰氨基葡萄糖的合成方法。该方法的具体步骤为：将D-葡萄糖胺盐酸盐和乙醇按2～2.5∶100的质量比溶于水中，调节该溶液的pH值为9～10；过滤，取滤液，搅拌下加入乙酸酐，其加入量为原料D-葡萄糖胺盐酸盐量的50～60wt％；搅拌反应2小时后，用无水乙醇进行重结晶；过滤，晶体再用水重结晶，得棒状食品级N-乙酰氨基葡萄糖。
Against the exiting question about which is hard to real-time analyze and measure speedy and exactly measurement of changing harmonic, this paper studies and realizes a harmonic analysis and measurement method based on reconstruction of wavelet packet decomposed coefficients. This paper puts forward a new concept of harmonic virtual value. Whats more, this paper studies, puts forwards and builds a detection method of harmonic virtual value and singularity. According to this method, power system harmonic track can be realized. This method provides theory basis for taking an effective method for harmonic real-time compensate. Using wavelet transform can make one voltage process decompose to a frequency band. According to sample frequency and decompose scale, frequency band can be confirmed. Harmonic content analysis is realized. All integral and non-integral harmonics are obtained. This method overcomes information missing resulting from spectrum leak, fence effect in traditional harmonic measurement. Reliability and accuracy of harmonic are improved. The self-adaptive power active filter is designed by combining the arithmetic of reconstruction of wavelet packet decomposed coefficients based on this theory.
针对目前电力系统谐波分析方法中存在的难以快速、准确对非平稳暂态谐波进行实时分析和检测等问题，提出研究了一种基于小波包分解系数重构算法的谐波分析、测量方法；研究、提出并建立了基于小波包分解系数重构算法的谐波有效值测量和信号畸变定位方法，据此可实现电力系统的各次谐波跟踪，为对谐波采取行之有效的实时补偿提供理论依据；建立了一种基于小波包分解系数重构算法的自适应有源滤波器，探索利用小波变换将某一信号分解到某一频带上，根据采样频率及其小波包分解尺度确定频带范围，实现该频带所包含的谐波含量分析，获得频带内所有整数次和非整数次谐波量值，克服传统谐波测量因频谱泄漏、栅栏效应造成的信息遗漏，提高测量的可靠性与准确性。
It is a FIR filter design scheme possessing concurrently the merits of the conventional windowing and the frequency sampling. On taking full account of equivalence condition of circular convolution and linear convolution, in this paper, the authors give the custom design method of the all phase filter. Which insures that the all phase filter to be designed has excellent properties and makes much consistencies with filter prototype that has been proposed ahead.
方法在用全相位概念设计滤波模板中充分考虑了用DFT和循环卷积表达线性卷积时的等价性条件，以确保待设计的全相位滤波器的频率响应特性与给定的原型滤波器的频率特性矩阵有更好的相关性和一致性。
Individuals prepared on the plot comb filter procedures for taking and the interpolation to prevent signal distortion.
个人编写的关于积梳状滤波器的程序，用于抽取和插值时防止信号失真。
Taking the harmonic attenuation and reactive power compensation of the power distribution network at Jiangxi copper company as the object of study, this thesis studies modeling, control and equipment of Active Power Filter, based on basic principle of APF. This research prepare theory and technological knowledge for its universal application in our country, and accumulate experiences for its high-voltage and high-power application.
本论文以江西某铜箔厂的谐波治理和无功补偿为研究对象，从有源电力滤波器APF的基本原理出发，对有源电力滤波器的建模、控制和装置研制等三个方面进行了详细的研究，为高压、大功率有源电力滤波器在国内的早日普及应用积累经验、奠定理论和技术基础。
Taking the harmonic attenuation of the power distribution network at the Smeltery of Guixi as the object of study, the paper aims to research the algorithms of harmonic detection and control stratigies for active power filter based on digital signal processor, which would improve the real-time characteristics and the systematic dynamic performances, realizing to restrain the harmonic of the power system effectively.
本论文以江西省贵溪冶炼厂10kV变电站电网谐波治理为研究对象，旨在研究基于数字信号处理器为主控制器的有源电力滤波系统谐波检测和控制方法，提高系统的实时性和动态跟踪性能，实现对电网谐波的有效治理。
Hardware design of switching mode charger is designed systematically including power circuit, control circuit, and human-machine interface circuit and serial communication circuit. The power circuit basically consists of rectifier circuit, high-frequency transformer and the output filter reactor. The control circuits are built up by PWM pulse-generating circuit, IGBT driver circuit, I~2C bus circuit, and so on. Taking some factors like cost, EMC and efficiency into account, some relevant schematics and PCBs are drawn.
包括功率电路、控制电路以及人机界面与串行通讯电路在内的系统设计，功率电路主要包括整流电路、高频变压器、输出滤波电抗器等，控制电路主要包括PWM发生电路、IGBT驱动电路、I~2C总线电路等，在考虑成本、EMC、效率等因素后完成了相关的原理图绘制和PCB绘制等工作；开关充电机的软件设计。
The dressing is even and filter element is very good through the method of taking out vacuum filtration. The thickness can be defined by the concentration of liquid and taking out vacuum filtration time.
通过不同的木纤维和海泡石的配比进行镀层试验，对滤芯进行绝对过滤精度和压差试验，证明了这种滤芯具有良好的过滤效果。
In the view of pragmatic implement, the theoretical framework of our proposed condition for spatial boundaries indeed can be reduced to the hybrid formulation of nudging filter, radiation condition taking account of ambient forcing, together with Dirichlet kind of compatible boundary condition to the observations prescribed in data assimilation procedure.
我们提出的空间边界条件的算法构架事实上是在数据同化过程中综合运用了张弛滤波、考虑外部强迫的辐射边界条件以及与观测相容的狄里希利边界条件。
And then views the direction, emphases and foreground of the project future research. The article tries to study the innovation and application of automatic logistic technology by integrating theory, practice and science innovation, also by taking the Qingdao Cigarette Factory Filter Automatic Warehouse System Project System as an example.
文章自工艺需乞降出产组织笨活性需供两个方里研讨项纲必要性，从要自技巧和经济两方里开合采取威宽险管理和财务评价的方式研讨项纲的否行性，综开剖析项纲必要性和否行性得进项纲非否否行的解论，并铺望继开研讨的方背、沉里和后景。
Instead of taking a transition prior probability as proposal distribution, the unscented Kalman filter is used to generate the proposal distribution so as to improve the filtering effect. Then the paper syncretizes the standard MCMC sampling method, Metropolis Hastings, and the unscented particle filter, which can reduce the effect that the traditional particle filter doesn't consider the current measurement.
该算法采用无味卡尔曼滤波(unscented Kalman filter，UKF)生成粒子滤波的提议分布，来代替传统粒子滤波算法采用状态转移先验概率作为粒子滤波的提议分布，以改善滤波效果，然后在无味粒子滤波的基础上融合了典型的MCMC抽样算法(Metropolis Hastings，MH)，从而可以减少传统粒子滤波未考虑当前量测对状态的估计作用所带来的影响。
The bandwidth of the third spurious response of filter with equal length is zero. Taking advantage of the filter based on non-equal length SIR, flexibility in design process can be increased.
等电长度SIR滤波电路的第三寄生通带的带宽为零，然而，非等电长度SIR滤波电路却增加了设计的灵活性。
A new restraining network method for analysing the network with operational amplifier is investigated in detail, taking RC active filter as a sample.
以RC有源滤波电路为例，介绍了一种对含有运算放大器网络进行分析的新的约束网络法，并对其进行了较细致的研究。
The digital decimation filter taking the important constituent in the Delta-Sigma Analog-to-Digital converter is realized by the multistage structure.
数字抽取滤波器是它的重要组成部分，通常采用多级结构来实现。
Taking advantage of coupled-inductor filter network, the requirement of low ripple is achieved without decrease of the dynamic performance of power supply.
利用耦合电感滤波网络，达到低纹波的要求，同时不会破坏原开关电源的动态性能。
Taking Butterworth filter as an example, this article presents a method of CAD for transfer function of analog and digital filter, and gives the block diagram, the designing examples, and results.
本文以布特沃思型滤波器为例，提出了统一设计模拟和数字（IIR）滤波器传递函数的CAD方法，并给出了程序设计框图、设计举例和结果。