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2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)最新文献

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Driving the PWM-Controlled System to Monostable Behavior by Periodic Modulation of a Carrier Signal 利用载波信号的周期调制驱动pwm控制系统达到单稳定状态
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005723
Vitalii Atamaniuk, Oleksiy Kuznyetsov, H. Lunkova
The normal (“nominal)” mode of operation of a PWM -driven power stage under several circumstances can be only one of multiple coexisting stable modes for the same set of parameters; that phenomenon is referred to as multistability. The “non-nominal” modes are most often characterized by lower efficiency and higher ripples and are undesired. That leads us to the search of the strategies to control those nonlinear phenomena. Our proposal is based on transferring the system to a monostable behavior utilizing a periodic modulation of a carrier signal. The applicability of the proposed control and the suitable ranges of the modulation strength are studied using the bifurcation diagram. In addition, if the control should provide a return to an uncontrolled state after the control goal is achieved, we demonstrate that an implementation should include smooth attenuation of the modulation strength to ensure the “nominal” operation after the control is disabled.
在几种情况下,PWM驱动的功率级的正常(“标称”)工作模式只能是同一组参数下共存的多个稳定模式之一;这种现象被称为多稳定性。“非标称”模式通常具有较低的效率和较高的波纹,并且是不希望的。这就引导我们去寻找控制这些非线性现象的策略。我们的建议是基于利用载波信号的周期调制将系统转移到单稳态行为。利用分岔图研究了所提控制的适用性和调制强度的适宜范围。此外,如果控制应该在控制目标实现后返回到不受控制的状态,我们证明了实现应该包括调制强度的平滑衰减,以确保控制被禁用后的“标称”操作。
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引用次数: 0
The Transformative Impact of the Development of Artificial Intelligence on Employment and Work Motivation in Business in the Conditions of the Information Economy 信息经济条件下人工智能发展对企业就业和工作动机的变革性影响
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005652
Y. Yakovenko, M. Bilyk, Yevheniia V. Oliinyk
The paper examines how the development of digital technologies, in particular artificial intelligence (AI), affects the labor market and changes the work process. It is argued that the main goal of enterprise management in the conditions of digital transformations is the formation of internal motivation among employees. As a result of this, the employee's dependence on positive and negative reinforcements from management decreases and self-motivation increases. The internal and external factors that contribute to the increase or decrease of the salary are determined. The role of the obtained results in further practical implementation is to make clear how AI algorithms help employees reach goals more efficiently - based on the study of cases of digitalization achievements in the field of motivation on the example of Ukrainian innovative companies the construction of the “needs - interests - incentives (motives) - result” scheme was proposed. Direct economic, indirect economic and non-monetary methods of motivation are considered and the main principles of the development of the motivation system are highlighted. It is emphasized that due to the training and retraining of personnel in such a way that the growth of their wages does not lag behind their productivity, and they receive wider opportunities for career growth, it is possible to ensure the sustainability of personnel policy in the conditions of the transformational impact of digitalization and AI.
本文探讨了数字技术,特别是人工智能(AI)的发展如何影响劳动力市场并改变工作流程。本文认为,在数字化转型条件下,企业管理的主要目标是员工内部激励的形成。因此,员工对管理层正强化和负强化的依赖性降低,自我激励增强。确定了导致工资增减的内外部因素。所得结果在进一步实际实施中的作用是明确人工智能算法如何帮助员工更有效地实现目标——基于对激励领域数字化成果案例的研究,以乌克兰创新型公司为例,提出了“需求-利益-激励(动机)-结果”方案的构建。分析了直接经济激励、间接经济激励和非货币激励方法,强调了激励制度发展的主要原则。报告强调,由于对人员进行培训和再培训,使他们的工资增长不落后于他们的生产力增长,并且他们获得了更广泛的职业发展机会,因此有可能在数字化和人工智能的转型影响下确保人事政策的可持续性。
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引用次数: 0
Features of Manufacturing a Two-layer Electrical Contact 制造两层电触点的特点
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005770
T. Haikova, M. Moroz, Volodymyr Zahorianskyi, S. Shlyk, Roman Haikov, Anna Haikova
It has been shown that metal contact joints must be resistant to electrochemical and electro galvanic corrosion, mechanical damage and wear resistance. However, such requirements are practically not feasible for contact pairs of dissimilar metals. This leads to melting, oxidation, under-burning of the contacts, and in general, a decrease in the reliability of the contact connection. The use of double-layer electrical contacts increases the reliability of power transmission through the connections and increases the service life of the assembly. At the same time, copper consumption was reduced by 60-80% and the contact cost by 20-40%. It has shown that the production of a two-layer contact is associated with plastic deformation of the two layers. In this case, the less strong metal begins to deform first, involving the more durable metal into the deformation zone. Due to the non-coincident yield strengths of metals, additional stresses arise between the layers, which contribute to the alignment of the deformation over the layers.
研究表明,金属接触接头必须具有耐电化学和电偶腐蚀、机械损伤和耐磨性。然而,对于异种金属的接触对,这样的要求实际上是不可行的。这将导致触点的熔化、氧化、欠烧,并且通常会降低触点连接的可靠性。双层电触点的使用增加了通过连接传输电力的可靠性,并增加了组件的使用寿命。同时,铜消耗量降低60-80%,触点成本降低20-40%。结果表明,两层接触的产生与两层接触的塑性变形有关。在这种情况下,较弱的金属首先开始变形,使较耐用的金属进入变形区。由于金属的屈服强度不一致,层之间产生额外的应力,这有助于层上变形的对齐。
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引用次数: 0
Mode Decomposition Passivity-Based Control of Bidirectional Zeta-SEPIC DC-DC Converter 基于模式分解无源的双向Zeta-SEPIC DC-DC变换器控制
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005701
I. Shchur, Rostyslav-Ivan Kuzyk
DC-DC converters are one of the most popular power electronic devices. In this work, Zeta-SEPIC DC-DC converter configuration is considered, which has a number of important advantages for electric drives of autonomous vehicles. The operation of this converter is described by two systems of nonlinear equations - respectively for the forward power transfer (FPT) and backward power transfer (BPT) modes. To develop a control system for such an object, the energy approach - passivity-based control (PBC) is applied. In particular, thanks to mode decomposition, two PBC subsystems were synthesized for FPT and BPT, respectively. A number of control system configurations were studied by means of computer simulation, among which the most effective ones were selected for each of the modes. In order to stabilize the static and dynamic indicators of the system, nonlinear dependencies of additionally introduced coefficients of interconnections were found, the effectiveness of which was confirmed by the simulation results.
DC-DC变换器是最常用的电力电子器件之一。在这项工作中,考虑了Zeta-SEPIC DC-DC转换器配置,该配置对于自动驾驶汽车的电驱动具有许多重要优势。该变换器的运行由两个非线性方程组描述,分别为前向功率传输(FPT)和后向功率传输(BPT)模式。为了开发这样一个对象的控制系统,应用了能量方法-基于被动的控制(PBC)。特别地,由于模态分解,分别为FPT和BPT合成了两个PBC子系统。通过计算机仿真研究了多种控制系统配置,并对每种模式选择了最有效的控制系统配置。为了稳定系统的静态和动态指标,发现了额外引入的连接系数的非线性依赖关系,仿真结果证实了其有效性。
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引用次数: 0
Analysis of technical conditions influencing the operation of PV power stations cooperating with controlled power grids 影响光伏电站与受控电网协同运行的技术条件分析
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005686
P. Lezhniuk, V. Komar, M. Bělík, O. Rubanenko, I. Smaglo
The article shows in first part the need to assess the technical condition of photovoltaic power plants, in particular the degradation of their photovoltaic modules, because during operation there is a gradual decrease in the actual power generation if compared to the initial value. It may also be related to the activation of special technical resources controlling conditions or other reasons of an operational nature. Simulations take into account gradual reduction of the potential of PV plants leading to uncertainties in the evaluation of their energy efficiency, profitability, payback time, reserved capacity for compensation during unstable generation by renewable energy sources. Also hourly forecasting of electricity generation for the next day in the balance sheet of the United Energy System (UES) of Ukraine is taken into account. Therefore, in order to more accurately determine the actual generation of PV plants, it is necessary to develop and improve appropriate methods, mathematical models and tools. The first step for this is to investigate the cases of damage and the factors that affect them. For this purpose, the article develops a tree of damage to the plants and PV module and discusses the technical condition of the PV plants and determination of the indicator coefficients.
文章在第一部分中表明,需要评估光伏电站的技术条件,特别是光伏组件的退化,因为在运行过程中,如果与初始值相比,实际发电量会逐渐减少。它也可能与启动特殊技术资源、控制条件或其他业务性质的原因有关。模拟考虑到光伏电站的潜力逐渐减少,导致其能源效率、盈利能力、投资回收期、可再生能源不稳定发电期间补偿预留容量的评估存在不确定性。此外,乌克兰联合能源系统(UES)的资产负债表上每小时的发电量预测也被考虑在内。因此,为了更准确地确定光伏电站的实际发电量,有必要开发和完善相应的方法、数学模型和工具。第一步是调查损害的情况和影响它们的因素。为此,本文编制了电站和光伏组件的损坏树,并对电站的技术条件和指标系数的确定进行了讨论。
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引用次数: 3
Simulation of UAS Operator's Decision-Making under Different Weather Conditions 不同天气条件下无人机操作员决策仿真
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005627
Yevheniia Znakovska, Y. Averyanova
Nowadays Unmanned aircraft systems (UAS) are used for a range of industrial applications. The peculiarities of tasks require understanding and knowledge of weather-related hazards that restrict or even make impossible the UAS flight and mission realization. Moreover, the modern UAS can be used as mobile sensors to obtain information about the current state of the atmosphere and its parameters for further implementation in IoT technologies including industrial IoT systems. At the same time, there is rather a lack of systems and programs for UAS meteorological support. In this paper, we develop the algorithm and software that can be used as an application for UAS operators. The decision-making algorithm considers the type of UAS (characteristic), mission and area of planned flight, and current weather situation. The developed software is aimed not only to inform UAS operators about the current meteorological state in the intended area of flight but also to give advice and help to take the right decision on the possibility to perform a particular task in a particular area of flight on the base of a risk-oriented approach.
如今,无人驾驶飞机系统(UAS)用于一系列工业应用。任务的特殊性需要理解和了解与天气有关的危害,这些危害限制甚至使无人机飞行和任务实现成为不可能。此外,现代无人机可以用作移动传感器,以获取有关大气当前状态及其参数的信息,以便在包括工业物联网系统在内的物联网技术中进一步实施。与此同时,无人机气象支持的系统和项目相当缺乏。在本文中,我们开发的算法和软件可以作为一个应用程序,为无人机运营商。决策算法考虑了无人机的类型(特性)、计划飞行的任务和区域以及当前的天气情况。开发的软件不仅旨在告知UAS操作员有关预定飞行区域的当前气象状态,而且还提供建议,并帮助在基于风险导向的方法的基础上,就在特定飞行区域执行特定任务的可能性做出正确的决定。
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引用次数: 3
Calculation of the Consequences of a Decrease in the Power Factor Level in Rural Electrical Networks Supplying Municipal and Household Electrical Consumers 为市政和家庭供电的农村电网功率因数水平下降的后果计算
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005736
M. Qawaqzeh, Olha Sotnik, O. Miroshnyk, S. Halko, Oleksii Sotnik, Yurii Khandola
Comparative calculations of the load of a power transformer with a capacity of 100 kV.A and the carrying capacity, voltage and losses of electricity on a power transmission line of 0.4 kV in the village of Lutovinovka of the Kozelshchansky district branch of Poltavaoblenergo are carried out, taking into account the reduced value of the power factor and without taking into account the power factor (the existing method of calculation power loss). The refined values of the power factor showed that when calculating the current and voltage losses in the line sections, the calculations will be underestimated compared to the existing losses.
容量为100kv的电力变压器负荷的比较计算。A和Poltavaoblenergo Kozelshchansky地区分公司Lutovinovka村0.4 kV输电线路上的电力承载能力,电压和损耗进行了计算,考虑了功率因数的降低值,而不考虑功率因数(现有的计算功率损耗的方法)。细化后的功率因数值表明,在计算线段的电流和电压损耗时,与现有损耗相比,计算结果会被低估。
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引用次数: 1
Multi-dimensional Classification of the Schemes of Marine Power Generating Units 船用发电机组方案的多维分类
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005702
Oleksandr Cherednichenko, S. Serbin, Mykhaylo Tkach, O. Savenko
In this paper the issues of heat recovery of marine engines for different schemes of power generating units are presented. Current trends in the development of offshore infrastructure are identified. The composition of the power plants for oil and gas floating units and offshore vessels has been analyzed. The results of a comparison of power to volume ratio, power to weight ratio and efficiency for diesel and gas turbine power modules of various capacities are presented. In order to evaluate the potential of waste energy resources of marine heat engines using the thermochemical heat recovery technologies of promising fuels, a multi-dimensional classification of the schemes of marine power generating units has been developed. The application limits of the existing approaches to estimation of processes efficiency of heat recovery for different schemes of power generating units have been defined. The limitations have been identified, that are related to the influence of the main parameters of the heat recovery processes on the feasibility of thermochemical treatment of fuels depending on their properties.
本文介绍了不同发电机组方案下船用发动机的热回收问题。确定了海上基础设施发展的当前趋势。分析了油气浮式装置和海洋船舶动力装置的组成。给出了不同容量的柴油和燃气轮机动力模块的功率体积比、功率重量比和效率的比较结果。为了评价利用有前途的燃料热化学热回收技术开发船用热机废能的潜力,对船用发电机组方案进行了多维分类。明确了现有的各种发电机组热回收效率估算方法的适用范围。已经确定了一些限制,这些限制与热回收过程的主要参数对燃料的热化学处理可行性的影响有关,这取决于其性质。
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引用次数: 1
Industry 4.0 Technologies in Ensuring Environmental Friendliness of Production and Product Quality 工业4.0技术在确保生产环境友好性和产品质量中的应用
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005692
A. Kasych, Olena Cherniavska, S. Bondarenko, Olena Ievseitseva, V. Glukhova
The paper examines the key factors, advantages, and results of implementing Industry 4.0 technologies in production. The potential and prospects of using Industry 4.0 technologies, in particular, robotics, artificial intelligence, and nanomaterials at enterprises to increase the efficiency of their activities are revealed. Environmental indicators and quality characteristics of products under conditions of different levels of robotization of production were studied. The main emphasis is researching the positive impact of robotics on the environmental characteristics of production in terms of reducing waste and increasing the environmental friendliness of products. The novelty of this research lies in developing recommendations for the implementation of Industry 4.0 technologies at the same time to improve the environmental efficiency of enterprises and increase the quality of products. This document may be of interest to enterprises with limited financial opportunities to increase the level of robotization of production which also incur unjustified environmental costs.
本文探讨了在生产中实施工业4.0技术的关键因素、优势和结果。揭示了在企业中使用工业4.0技术,特别是机器人技术、人工智能和纳米材料以提高其活动效率的潜力和前景。研究了不同自动化生产水平下产品的环境指标和质量特性。主要的重点是研究机器人在减少浪费和增加产品的环境友好性方面对生产环境特性的积极影响。本研究的新颖之处在于为工业4.0技术的实施提出建议,同时提高企业的环境效率,提高产品质量。本文件可能对财务机会有限的企业有兴趣,以提高生产的机器人化水平,这也会造成不合理的环境成本。
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引用次数: 0
Multithreaded Software Control of Industrial Manipulator Movement 工业机械手运动的多线程软件控制
Pub Date : 2022-10-20 DOI: 10.1109/MEES58014.2022.10005675
I. Nevliudov, S. Novoselov, O. Sychova, D. Mospan
Modern production requires the use of automation tools in the manufacturing process. One of the most commonly used technical means is an industrial manipulator. The concept of Industry 4.0 involves the use of special software tools that allow you to conveniently and visually debug control programs using the visualization of the process of simulating the movement of its mechanical parts in real time. This paper describes the technique of multithreaded software control of the movement of a two-link manipulator with three degrees of freedom. The proposed technique uses a set of independent timers, which allow to implement independent flows of controlling the progress of program execution. The process of distributing tasks between threads and the synchronization algorithm are described. The proposed technique can be used both for simulating the manipulator motion control process and for direct motion control using a serial data transfer interface and commands in G-Code format.
现代生产要求在制造过程中使用自动化工具。最常用的技术手段之一是工业机械手。工业4.0的概念涉及使用特殊的软件工具,允许您使用实时模拟其机械部件运动的可视化过程方便和可视化地调试控制程序。本文介绍了三自由度双连杆机械臂运动的多线程软件控制技术。所提出的技术使用一组独立的计时器,允许实现控制程序执行进度的独立流。描述了在线程间分配任务的过程和同步算法。该技术既可用于模拟机械手的运动控制过程,也可用于使用串行数据传输接口和G-Code格式的命令进行直接运动控制。
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引用次数: 0
期刊
2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)
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