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INCREASING OF ELECTRICAL AND RADIOELECTRONIC EQUIPMENT’S IMMUNITY AGAINST HIGH VOLTAGE SHORT-DURATION PULSE DISTURBANCES IN THE MAINS 提高电气和无线电电子设备对市电高压短时间脉冲干扰的抗扰性
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.034
V. Pavlovskyi, V. Gurin, O. Yurchenko
{"title":"INCREASING OF ELECTRICAL AND RADIOELECTRONIC EQUIPMENT’S IMMUNITY AGAINST HIGH VOLTAGE SHORT-DURATION PULSE DISTURBANCES IN THE MAINS","authors":"V. Pavlovskyi, V. Gurin, O. Yurchenko","doi":"10.15407/techned2022.05.034","DOIUrl":"https://doi.org/10.15407/techned2022.05.034","url":null,"abstract":"A problem of electrical and radioelectronic equipment’s high energy pulse disturbance immunity is considered in the paper, in particular against microsecond high voltage disturbances (MHVD) in the power mains. It is showed causes of MHVD with amplitude up to 4 kV and even higher. A review of various protection methods against MHVD is carried out and it is shown that the use of a two-terminal network (TTN) with a significantly nonlinear current-voltage characteristic: varistors, suppressors and gas arrestors is the most effective. The report analyzes the operation principle of these two-poles and shows that the typical inclusion of such a device directly at the equipment’s input is not effective enough for cases where the high-frequency impedance of the mains is low. An L-circuit for connecting the TTN together with an LR link is proposed, and results of computer simulation with the aid of PSPICE showed that such a scheme reduces the MHVD amplitude on the network input of the equipment by 1.5 times comparing with the typical inclusion of such a device even under a low impedance of the mains Adding the low-pass filter to the L-circuit allows to reduce the MHVD amplitude by 40 and more times comparing with the typical inclusion of the TTN. References 8, figures 6.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47995130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
MATHEMATICAL MODELING OF ELECTRIC MACHINE WITH THREE-DEGREE-OF-FREEDOM GYROSTABILIZED ROTOR 三自由度陀螺稳定转子电机的数学建模
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.038
K. Akinin, V.G. Кireyev, I. Petukhov, A. Filomenko
{"title":"MATHEMATICAL MODELING OF ELECTRIC MACHINE WITH THREE-DEGREE-OF-FREEDOM GYROSTABILIZED ROTOR","authors":"K. Akinin, V.G. Кireyev, I. Petukhov, A. Filomenko","doi":"10.15407/techned2022.05.038","DOIUrl":"https://doi.org/10.15407/techned2022.05.038","url":null,"abstract":"A retrospective review of the development of the theory and practical structures of electric machines with a three-degree-of-freedom rotor (EMTR) at the Institute of Electrodynamics of the National Academy of Sciences of Ukraine. The applications of EMTR in surveillance, tracking and stabilization systems on moving objects are listed. The relevance of the development of such machines is shown. The disadvantages of the classical mathematical model of EMTR are noted and the need to develop a refined mathematical model due to the need to develop new technology, the emergence of new materials and electronic components, as well as the growth of computing capabilities. The two main known structures of EMTR are described and the advantages of the perspective structure chosen as the basic one are listed. The model of static three-dimensional magnetic field of EMTP and the associated dynamic model in the COMSOL Multiphisics environment are substantiated and constructed for the basic structure of EMTR. The connection between the magnetostatic problem and the rotor motion dynamics problem is ensured by the fact that the data of the calculated instantaneous characteristics are transmitted in the form of approximated dependences to the dynamic problem. In the mode of free rotation without losses, the dependences of the precession angle on time, amplitude and phase of the sinusoidal current of the control winding are calculated. High accuracy of observance of the direction of precession of the axis of the rotor at observance of the corresponding initial phase of sinusoidal current of a control winding is noted. The influence of rotation windings on the moment created by the control winding is investigated. References 3, figures 8.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41338424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GRID-CONNECTED PV SYSTEM EMPLOYING THREE INVERTERS REGULATED BY SYNCHRONOUS SCHEME OF PWM 采用PWM同步控制的三逆变器并网光伏发电系统
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.023
V. Oleschuk
{"title":"GRID-CONNECTED PV SYSTEM EMPLOYING THREE INVERTERS REGULATED BY SYNCHRONOUS SCHEME OF PWM","authors":"V. Oleschuk","doi":"10.15407/techned2022.05.023","DOIUrl":"https://doi.org/10.15407/techned2022.05.023","url":null,"abstract":"The paper presents comparative analysis of three versions of the modified scheme of space-vector-based synchronous pulsewidth modulation (PWM), applied for control of three two-level inverters of transformer-based photovoltaic (PV) system, and focused on providing of the symmetry of winding voltage of power transformer during the whole adjustment range. Power supply of inverters is providing by the corresponding three solar strings consisting of a set of PV panels, and the outputs of three inverters are connected specifically with inverter-side windings of multi-winding grid-tired transformer. Results of MATLAB-simulation prove the fact of advanced spectral composition of the winding voltage of triple-inverter-based PV installation regulated by algorithms of synchronous space-vector PWM, assuring potential reduction of losses in these systems. References 10, table 1, figures 9.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42856708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
EXPERIMENTAL RESEARCH OF THE CONTROLLER FOR CONTROL OF THE TRACTION ELECTRIC MOTOR ON PERMANENT MAGNETS 永磁牵引电动机控制控制器的实验研究
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.052
A. Zharkin, V. Pavlov, V. Grebenikov
{"title":"EXPERIMENTAL RESEARCH OF THE CONTROLLER FOR CONTROL OF THE TRACTION ELECTRIC MOTOR ON PERMANENT MAGNETS","authors":"A. Zharkin, V. Pavlov, V. Grebenikov","doi":"10.15407/techned2022.05.052","DOIUrl":"https://doi.org/10.15407/techned2022.05.052","url":null,"abstract":"The controller of traction electric motors on permanent magnets for vehicles in which the power transistor converter is made on the modified IGBT modules with the improved characteristics is described in this work. The use of these modules, which are widely used today in semiconductor devices of modern dual-use technology, allows to reduce the size and weight of the converter, simplify the cooling system, increase efficiency and reliability of the semiconductor converter and electric drive in general due to harsh operating conditions. Bench tests of the experimental sample of the semiconductor converter and the microprocessor control system in various operating modes, including at the maximum load corresponding to real operating conditions are made and carried out. As a result of tests, it was determined that the technical characteristics of the controller meet the requirements of such devices. The created semiconductor controller on IGBT modified modules can be used to control motors on permanent magnets and motor wheels with a nominal power of 40-50 kW, maximum - 100 kW. References 11, figures 8, tables 4.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49129316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
COMBINED TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE STRUCTURE OF A TWO-FUNCTION CONVERTER WITH DISCRETE-TIME CONTROL 一种具有离散时间控制的双功能变换器的组合变压器-开关执行结构
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.029
K. Lypkivskyi, A. Mozharovskyi
{"title":"COMBINED TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE STRUCTURE OF A TWO-FUNCTION CONVERTER WITH DISCRETE-TIME CONTROL","authors":"K. Lypkivskyi, A. Mozharovskyi","doi":"10.15407/techned2022.05.029","DOIUrl":"https://doi.org/10.15407/techned2022.05.029","url":null,"abstract":"Power supply systems with transformer-and-switches executive structures have a prominent place in the power supply systems of electrical and electro technological equipment. Voltage converters based on them with discrete-time control of semiconductor switches are characterized by high energy performance and the absence of distortions in the operating states of the output voltage and input current. The constant increase in the range and number of electricity consumers that require the use of such converters for their standardized operation, encourages their appropriate improvement, in particular to expand functionality. The peculiarities of forming a combined transformer- and-switches executive structure of a two-function converter for a rectified current power supply system, which is characterized by increased efficiency of semiconductor devices and lower losses in them, are investigated. Possible and expedient ranges of regulation of output voltage of such converters are defined. References 12, tables 2, figures 4.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46976368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
INVESTIGATION OF ENERGY EFFICIENCY OF WATER SUPPLY SYSTEM WHEN POWERED BY AN ALTERNATIVE ENERGY SOURCE 替代能源供水系统的能效研究
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.077
M. Pechenik, S. Burian, H. Zemlianukhina, M. Pushkar, V. Teriaiev
{"title":"INVESTIGATION OF ENERGY EFFICIENCY OF WATER SUPPLY SYSTEM WHEN POWERED BY AN ALTERNATIVE ENERGY SOURCE","authors":"M. Pechenik, S. Burian, H. Zemlianukhina, M. Pushkar, V. Teriaiev","doi":"10.15407/techned2022.05.077","DOIUrl":"https://doi.org/10.15407/techned2022.05.077","url":null,"abstract":"The nature of the efficiency change in pump systems powered by an alternative source of electricity in conditions of a given pressure stabilization is investigated. An electromechanical water supply system powered by an alternative energy source using a static compensator (STATCOM) is considered. The observer of energy efficiency of the pump installation based on theory of artificial neural networks, which training occurs on the basis of static characteristics of the unit, is constructed. The results and analysis of investigations of the efficiency level changes during a typical daily cycle of water consumption are shown. References 12, figure 5.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43328096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SCIENTIFIC AND TECHNICAL SUPPORT FOR ORGANIZING THE WORK OF THE IPS OF UKRAINE IN SYNCHRONOUS MODE WITH THE CONTINENTAL EUROPEAN POWER SYSTEM ENTSO-E 为组织乌克兰国际电力系统与欧洲大陆电力系统同步运行提供科学技术支持
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.059
O. Kyrylenko, V. Pavlovsky, I. Blinov
{"title":"SCIENTIFIC AND TECHNICAL SUPPORT FOR ORGANIZING THE WORK OF THE IPS OF UKRAINE IN SYNCHRONOUS MODE WITH THE CONTINENTAL EUROPEAN POWER SYSTEM ENTSO-E","authors":"O. Kyrylenko, V. Pavlovsky, I. Blinov","doi":"10.15407/techned2022.05.059","DOIUrl":"https://doi.org/10.15407/techned2022.05.059","url":null,"abstract":"Scientific developments, which have been implemented as mandatory to provide a synchronous operation of IPS of Ukraine with the Continental European Power System ENTSO-E are presented. Firstly, it concerns a new level of information maintenance that has been realized by the creation and implementation of a wide range of specialized devices. The features of the construction of information-diagnostic devices are determined. The systems focused on the use of active elements, such as devices and technologies to provide flexible changes in network characteristics, as well as the implementation of electricity conversion to optimize their operation regimes are considered. A special attention was paid to providing a stable operation of the Ukrainian power system, including voltage stability. It covers tools and technologies used to create flexible AC transmission lines. The scenarios for eliminating a major system breakdown with an active power deficit of 1000 MW and other scenarios have been studied. The ways of further research on the development of IPS of Ukraine in the postwar period at the first stages of synchronous operation with ENTSO-E are identified. The paper identifies priority measures and tools aimed to improve the survivability and reliable control of the Ukrainian power system, development of principles and means of adaptation and reconstruction of emergency automatic control of electrical regimes and stability, creating prerequisites for digitalization of the power system. References 35, figures 2.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45899711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
PROTECTED INSULATED WIRES FOR MEDIUM-VOLTAGE OVERHEAD POWER LINES: ADVANTAGES, COMPUTATIONS 中压架空电力线路用保护绝缘电线：优点和计算
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.014
O. D. Podoltsev, I. Kucheriava
{"title":"PROTECTED INSULATED WIRES FOR MEDIUM-VOLTAGE OVERHEAD POWER LINES: ADVANTAGES, COMPUTATIONS","authors":"O. D. Podoltsev, I. Kucheriava","doi":"10.15407/techned2022.05.014","DOIUrl":"https://doi.org/10.15407/techned2022.05.014","url":null,"abstract":"The paper presents the advantages of protected insulated wires for medium-voltage (up to 35 kV) overhead power lines compared to the lines with traditional non-insulated wires. The mathematical model is developed and the computer calculations are realized for a 20 kV protected insulated wire with a steel-aluminum core. For such design, the distributions of the magnetic field and current density in three wires of overhead power line are analyzed, their resistance is determined taking into account the nonlinear properties of the steel core within the frequency range of 50–10000 Hz. This makes it possible to compute the electrical losses in the conductors of the power lines under the transient conditions and at high harmonics in the power network. References 8, figures 4.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49099984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FLUX OBSERVER ADAPTIVE TO INDUCTION MOTORS ACTIVE ROTOR RESISTANCE VARIATIONS 自适应感应电动机转子电阻变化的磁链观测器
Technical Electrodynamics Pub Date : 2022-08-18 DOI: 10.15407/techned2022.05.045
S. Peresada, Y. Nikonenko, S. Kovbasa, O. Kuznetsov
{"title":"FLUX OBSERVER ADAPTIVE TO INDUCTION MOTORS ACTIVE ROTOR RESISTANCE VARIATIONS","authors":"S. Peresada, Y. Nikonenko, S. Kovbasa, O. Kuznetsov","doi":"10.15407/techned2022.05.045","DOIUrl":"https://doi.org/10.15407/techned2022.05.045","url":null,"abstract":"A flux observer for induction motors which is adaptive to the active rotor resistance variations is presented. Due to the added fluxes overestimation in the observer structure, the global exponential stability properties of the current and flux vector components and active rotor resistance estimation are ensured under conditions of persistency of excitation. The proposed observer has a simpler structure compared to existing solutions with the global stability properties. The simulation results of the observer dynamic performance investigation confirm its effectiveness. It is shown that even if the conditions of persistency of excitation are not met, the active rotor resistance is estimated correctly; consequently, the designed observer can be implemented as an identification algorithm in self-commissioning systems of induction electric drives. References 9, figures 5.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45251837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
APPLICATION OF THE COMBINED SCHEME OF SINGLE-PHASE INCLUSION OF THE INDUCTION MOTOR AS A MEANS OF INCREASING THE ENERGY EFFICIENCY OF HYDRAULIC DRIVE OF PROGRESSIVE MOVEMENT 异步电动机单相包容组合方案在提高渐进式液压传动能效中的应用
Technical Electrodynamics Pub Date : 2022-07-04 DOI: 10.15407/techned2022.04.036
Y. Shurub, Yu. L. Tsitsyurskiy
{"title":"APPLICATION OF THE COMBINED SCHEME OF SINGLE-PHASE INCLUSION OF THE INDUCTION MOTOR AS A MEANS OF INCREASING THE ENERGY EFFICIENCY OF HYDRAULIC DRIVE OF PROGRESSIVE MOVEMENT","authors":"Y. Shurub, Yu. L. Tsitsyurskiy","doi":"10.15407/techned2022.04.036","DOIUrl":"https://doi.org/10.15407/techned2022.04.036","url":null,"abstract":"The peculiarities of the modes of operation of the hydraulic drive of translational motion with throttle speed control, in which the asynchronous motor with single-phase power supply is used as the primary actuator. A combined circuit of such an actuator with a phase-shifting capacitor is proposed, which allows to increase its energy efficiency in the forward and reverse modes of the hydraulic rod when changing the degree of opening of the hydraulic control valve by switching power circuits and using voltage regulation. References 10, figures 6, table 1.","PeriodicalId":38557,"journal":{"name":"Technical Electrodynamics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46047129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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