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2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)最新文献

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Control System of Electric Drive of a Coal Combine with Control and Forecasting of its Technical Condition 煤机电驱动控制系统及其技术条件的控制与预测
D. Shprekher, G. I. Babokin, E. Kolesnikov
We propose a system of electric drive control of the coal miner, which allows to increase the reliability and safety of its operation. The problem is solved by predicting the diagnosed parameters of the power elements and preemptive control actions on the control system of the electric drive and the organization of maintenance and repair. Forecasting values of drive parameters is carried out using a neural network model, and allows to increase the mean time between failures and availability of the electric drive compared with the control system without prediction parameters.
提出了一种煤矿电驱动控制系统,提高了煤矿电驱动运行的可靠性和安全性。通过对电力元件的诊断参数进行预测,对电驱动控制系统采取先发制人的控制动作,并组织检修,解决了该问题。采用神经网络模型对驱动参数进行预测,与无预测参数的控制系统相比,可以提高电力驱动的平均故障间隔时间和可用性。
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引用次数: 0
Calculation of the Load of an Electric Drive of a Reciprocating Compressor of a Ship Refrigeration Unit 船舶制冷机组往复式压缩机电传动负荷计算
A. Vyngra, B. Avdeyev
A four-piston marine refrigeration compressor is considered. The task is to find ways to improve the efficiency of the compressor driving motor by reducing energy consumption. A mathematical apparatus for determining the load torque of an electric drive of a compressor of a ship refrigeration unit has been developed. Using the parameters of the existing compressor, the value of the mechanical load on the shaft is determined, and a diagram of the moment of resistance of the electric drive shaft is plotted. The degree of torque pulsations on the shaft is estimated. It is determined that the compressor has large amplitude of torque pulsations on the shaft, which, in its turn, effects the value of the current pulsations in the electric drive. It is proposed to use the developed mathematical model describing the moment of resistance of the piston compressor shaft to determine the rational law of frequency or impulse regulation of electric drive parameters.
考虑了一种四活塞船用制冷压缩机。任务是通过降低能耗来寻找提高压缩机驱动电机效率的方法。研制了一种确定船舶制冷机组压缩机电传动负载转矩的数学装置。利用现有压缩机的参数,确定了轴上的机械载荷值,并绘制了电传动轴的阻力矩图。估计了轴上的转矩脉动程度。确定了压缩机在轴上具有较大振幅的转矩脉动,进而影响电传动中电流脉动的值。提出利用已建立的活塞式压缩机轴阻力矩数学模型,确定电传动参数的频率或脉冲调节规律。
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引用次数: 12
Solid State Voltage Regulators Influence on Power Flows Redistribution in Smart Grids 6-20 kV 固态稳压器对6- 20kv智能电网潮流再分配的影响
A. Loskutov, D. Zyrin, Anna S. Demidova
In the article approaches of construction of medium voltage networks with sources of distributed generation are described. A new method for constructing 6–20 kV multi-circuit networks - a hexagonal configuration network is proposed. The analysis and classification of power flow control devices has been carried out. Dependences of redistribution of power flows on electrical characteristics are considered.
本文介绍了分布式电源中压电网的建设方法。提出了一种构建6 - 20kv多回路网络的新方法——六边形结构网络。对潮流控制装置进行了分析和分类。考虑了电流再分配对电特性的依赖性。
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引用次数: 0
The Consumer Localization Distorting Power Quality: Studying of a Possibility 消费者定位扭曲电能质量:一种可能性的研究
V. Yaroshevich, A. Karpov, A. Burtsev
The article is devoted to the analysis of the power quality indicators registrations results on substation buses having a mixed load character (city networks, industrial and other electricity consumers) and determining the culprit of its distorting one. The research was carried out at several voltage classes of one substation - open type high-voltage switchgear 150, 110, 35 kV and 6 kV indoor switchgear. Usually, the energy supplying organization is automatically recognized as the culprit of electricity quality distortions. However, this article shows the results of experiments at the operating substation, confirming that the sources of power quality distortion are exclusively on the side of 6kV. At the same time, control of voltage distortions at the point of common connection of several consumers is not sufficient to localize distorting sources.
本文对具有混合负荷特征(市网、工业和其他用电用户)的变电站母线的电能质量指标登记结果进行了分析,并确定了其失真的原因。研究对象为同一变电站的若干电压等级——开式高压开关柜150kv、110kv、35kv和6kv室内开关柜。通常,供能组织被自动认定为造成电能质量扭曲的罪魁祸首。然而,本文给出了运行变电站的实验结果,证实了电能质量失真的来源完全在6kV侧。同时,在几个用户的共同连接点控制电压畸变不足以定位畸变源。
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引用次数: 3
A Data Representation Based on Block Wavelet Transform in Modified Form 基于改进型块小波变换的数据表示
A. Shoberg, K. Shoberg
The main idea of wavelet transform is to analyze a function at different scales. The transform results depend on how much it matches the function being analyzed. Wavelets at different resolutions produce different results. It's most important for the transform in block form, when execution is based on a source data fragments. Execution variants of block wavelet transform are considered. There are forms depending on the processing direction and invariant to it. A mathematical description is proposed in matrix form. The division of space-frequency plane for various processing options is presented for a one-dimensional signal. All main variants are considered. The transform results for the corresponding forms are shown.
小波变换的主要思想是分析不同尺度下的函数。转换结果取决于它与所分析的函数的匹配程度。不同分辨率的小波产生不同的结果。当执行基于源数据片段时,这对于块形式的转换是最重要的。考虑了分块小波变换的执行变量。根据加工方向和不变性有不同的形式。提出了矩阵形式的数学描述。对一维信号进行了不同处理方案的空频平面划分。考虑了所有主要的变体。给出了相应形式的转换结果。
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引用次数: 2
Optoelectronic Devices with Diffraction of Light on a Phase Grating 相位光栅上光衍射的光电器件
M. Urakseev, K. Vazhdaev, A. Sagadeev
The urgency of the work devoted to the creation of modern optoelectronic devices with diffraction of light on the phase grating is formulated. The expected result is the development of new devices and devices with diffraction of light on the phase grating, which have higher tactical and technical characteristics. The goal of the work is the study of patent and technical literature to identify the current state of research in the field of optoelectronic devices with diffraction of light on the phase grating, recommendations for the creation of new optoelectronic devices with higher characteristics. Based on the analysis of the known patent and technical sources, the state of the art in the field of optoelectronic devices with diffraction of light on the phase grating was studied, which contributed to the choice of trends in the development and research of new optoelectronic devices. Analysis of the physics of processes occurring in optoelectronic devices with diffraction of light on a phase lattice. For this, the basic structure of the optoelectronic device is proposed. The problem of noise immunity of optoelectronic devices is considered. The causes of noise-stability of optoelectronic devices are revealed. The main prospective spheres of application of optoelectronic devices are considered.
论述了在相位光栅上进行光衍射的现代光电器件的研制工作的紧迫性。期望的结果是开发出具有更高战术技术特点的新型器件和相位光栅上的光衍射器件。本工作的目的是通过对专利和技术文献的研究,确定光电子器件领域的研究现状,用衍射光对相位光栅进行研究,为创造具有更高特性的新型光电子器件提出建议。在对已知专利和技术来源进行分析的基础上,对相位光栅光衍射光电子器件领域的技术现状进行了研究,有助于选择新型光电子器件的发展和研究趋势。光在相晶格上衍射的光电器件中发生的过程的物理分析。为此,提出了光电器件的基本结构。研究了光电器件的抗噪声问题。揭示了光电器件噪声稳定性产生的原因。展望了光电器件的主要应用前景。
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引用次数: 5
Intelligent Interlocking of Switching Devices 开关设备的智能联锁
S. Sarry, P. Kireev, A. Ukraintsev
A system of operative interlocks of disconnectors serves to prevent incorrect actions of personnel during operational switching on the electric substation. A variant of designing an intelligent interlocking system for switching devices using digital technologies is considered. A special feature of the system is the use of inductive sensors for switching devices in place of unreliable contacts of the disconnectors. The use of specialized controllers and digital information exchange between them allows improving the information perfection of the system, reducing the overall length of the electromagnetic interlocking cable network on the substation and reducing the cost of its operation. It is proposed to use standard protocols for information exchange to integrate the interlocking system into the substation automated process control system.
隔离装置的操作联锁系统用于防止变电站操作开关时人员的错误操作。提出了一种利用数字技术设计开关设备智能联锁系统的方法。该系统的一个特点是使用电感传感器来代替断开器的不可靠触点来开关设备。采用专门的控制器和控制器之间的数字信息交换,提高了系统的信息完备性,缩短了变电站电磁联锁电缆网的总长度,降低了变电站的运行成本。提出采用标准的信息交换协议,将联锁系统集成到变电站自动化过程控制系统中。
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引用次数: 1
Study of the Efficiency of Hybrid Energy Systems with Renewable Generation: Dynamics of Energy Production in Summer and Winter Periods 具有可再生能源发电的混合能源系统的效率研究:夏季和冬季能源生产的动态
O. Marchenko, S. Solomin, A. Kozlov
In this paper, the methods of mathematical modeling are used to investigate an autonomous hybrid energy system with renewable generation. The aim of the study is to determine energy system optimal structure and its economic efficiency. The energy system contains photovoltaic modules, solar collectors for the solar heating system, storage batteries, a diesel power plant, a pellet-fueled boiler house, a biomass gasification mini-CHP operating on wood chips. A biomass gasification mini-CHP is used to cover the solar energy sources generation deficit, as well as to effectively replace expensive diesel generators. The paper considers two variants of mini-CHPs, differing in the cost of the gasifier. The mathematical model REM-2 (Renewable Energy Model) applied for calculations does not require an analysis of the structure options and the preliminary specification of the algorithm for switching energy flows between energy sources, consumers, and the battery. Optimal operating conditions are determined on the basis of GAMS (General Algebraic Modeling System) algorithms, taking into account the random nature of solar energy and the variability of energy consumption. The optimal structure of the system (installed capacity of energy sources and battery capacity) is determined, dynamics of energy production in summer and winter periods is investigated. Mathematical modeling that accounts for seasonal factors has demonstrated the efficiency of the joint use of solar energy and wood biomass.
本文采用数学建模的方法对具有可再生能源发电的自主混合能源系统进行了研究。研究的目的是确定能源系统的最优结构及其经济效率。能源系统包括光伏模块、用于太阳能加热系统的太阳能集热器、蓄电池、柴油发电厂、颗粒燃料锅炉房、以木屑为燃料的生物质气化小型热电联产。生物质气化小型热电联产用于弥补太阳能发电的不足,并有效地取代昂贵的柴油发电机。本文考虑了微型热电联产的两种变体,在气化炉的成本不同。用于计算的数学模型REM-2(可再生能源模型)不需要对结构选项进行分析,也不需要对在能源、消费者和电池之间转换能量流的算法进行初步规范。考虑到太阳能的随机性和能源消耗的可变性,基于GAMS(通用代数建模系统)算法确定了最优运行条件。确定了系统的最优结构(能源装机容量和电池容量),研究了夏季和冬季的能源生产动态。考虑季节因素的数学模型已经证明了太阳能和木材生物质联合使用的效率。
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引用次数: 4
Method of Parametric Optimization in Problems of Identification of Boundary Conditions of Convective Heat Transfer in Processes of Non-Stationary Heat Conduction 非平稳热传导过程中对流换热边界条件辨识问题的参数优化方法
A. Diligenskaya
A problem of recovering space-variable heat transfer coefficient of the heat transfer process between non-stationary heat flux and the tube surface is discussed. The problem is reduced to an identification of local (invariable in space) heat transfer coefficients on the pipeline inner surface by measuring temperature on the external tube area. Determination of local heat transfer parameters values is realized by solving an inverse heat conduction problem based on methodology of the optimal control of an object with distributed parameters. Parameterization of the sought characteristics regarded as the control action leads to the parameter optimization problem, which solution is based on the special method that takes into consideration the alternance features of the sought optimal decisions. Minimization of the temperature discrepancy error in the uniform metric of estimation is implemented on the basis of the parameterization of the identifiable characteristic considered as a control action. It leads to the problem of parametric optimization, which solution is based on the special method that takes into consideration the alternance features of the sought optimal decisions and allows to restore the local heat transfer parameters.
讨论了非定常热流与管表面之间的换热过程中空间变传热系数的恢复问题。该问题被简化为通过测量管道外部区域的温度来识别管道内表面的局部(空间上不变的)传热系数。基于分布参数对象最优控制方法,通过求解一个热传导逆问题,实现了局部传热参数值的确定。将被寻特征作为控制动作进行参数化,导致参数优化问题,该问题的求解基于考虑被寻最优决策的交替特性的特殊方法。在将可识别特征参数化作为控制动作的基础上,实现了均匀估计度量中温差误差的最小化。这导致了参数优化问题,该问题的求解基于特殊的方法,该方法考虑了所寻求的最优决策的交替特征,并允许恢复局部传热参数。
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引用次数: 0
Adaptive Power Supplies for Technological Objects with Non-Stationary Loads 技术对象非固定负载的自适应电源
V. Fediakov, Mariia N Kornieko, E. S. Khayatov
The implementation of a power amplifier for an electrodynamic vibrating installation is considered in the article. Structural diagrams of the power amplifier are presented. In the article the following problems are solved: synthesis of the structure of power rectifiers; mathematical simulation of the thermal modes of control boards using the finite element method; analysis of research results and development of recommendations. The proposed detailed thermal model of power circuits has allowed to consider the sections on control boards and power plants with local overheating, and this allows in each specific case to develop specific recommendations for the manufacture of coolers. Thus, for the objects of vibrating installations at PAO ChTPZ (Chelyabinsk), a power module for controlling a power vibration unit has been developed and introduced, the specific weight and dimensions parameters of which have been improved by approximately 20% and this task was solved at the expense of changing the configuration of the radiator part of the power unit. It was determined that for the symmetrical distribution of the load current power amplifiers with an analog principle of converting an electrical signal are advisable to implement by a modular principle. To work with different load resistances, the choice of operating mode is used, which also allows to reduce the power output and the overall dimensions of the construction. For more effective reduction of the power dissipated on the power elements, it is advisable to use the adaptive supply voltage of the output stages to the active resistance of the load.
本文考虑了一种用于电动振动装置的功率放大器的实现。给出了功率放大器的结构图。本文主要解决了以下几个问题:电源整流器结构的综合;利用有限元法对控制板热模态进行数学模拟分析研究结果并提出建议。所提出的详细的电力电路热模型允许考虑控制板和发电厂局部过热的部分,这允许在每个具体情况下为冷却器的制造制定具体的建议。因此,针对PAO ChTPZ(车里雅宾斯克)的振动装置对象,开发并引入了一种用于控制动力振动单元的功率模块,其重量和尺寸参数提高了约20%,并且以改变动力单元散热器部分的配置为代价解决了这一任务。为了实现负载电流的对称分布,采用模拟原理转换电信号的功率放大器宜采用模块化原理实现。为了在不同的负载电阻下工作,使用了操作模式的选择,这也允许减少功率输出和建筑的整体尺寸。为了更有效地降低功率元件上的耗散功率,建议使用输出级的自适应供电电压与负载的有源电阻相适应。
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引用次数: 0
期刊
2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)
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