Russian Electrical Engineering最新文献

{"title":"Mathematical Modeling of Barrier Discharge","authors":"D. V. Maksudov","doi":"10.3103/s1068371223120088","DOIUrl":"https://doi.org/10.3103/s1068371223120088","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A mathematical model for the development of an electron avalanche and an avalanche-streamer transition in the discharge gaps of an ozonizer is proposed, taking into account the influence of an electric field created by the avalanche itself and the effect of electron attachment to neutral particles, as well as the processes of recombination of electrons with positive ions and photoionization of neutral particles. Based on the model, an iterative method has been developed that makes it possible to determine the size dependence of an electron avalanche, the number of electrons formed in it, and the number of emitted photons leading to the initialization of secondary avalanches on the distance traveled by the front of the primary avalanche.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770342","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}

{"title":"A Study of Finite Control Systems for Permanent-Magnet Synchronous Motors","authors":"R. Y. Yudin, A. B. Petrochenkov, E. M. Solodkiy, D. D. Vishnyakov, S. V. Salnikov","doi":"10.3103/s1068371223110159","DOIUrl":"https://doi.org/10.3103/s1068371223110159","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The linearized mathematical model of a permanent-magnet synchronous motor with single input control, finite control systems, and a procedure for synthesizing a finite state controller are considered. The specifics of the practical implementation of quasi-finite control systems are described. A comparison of a vector control system with a finite state controller control system is made.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"299 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644610","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}

{"title":"Simulation Models of CAD System Transformers","authors":"A. I. Tikhonov, A. B. Krasovsky, A. V. Stulov, I. S. Snitko, A. A. Karzhevin","doi":"10.3103/s1068371223110135","DOIUrl":"https://doi.org/10.3103/s1068371223110135","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A methodology for constructing transformer simulation models with allowance for the design features is proposed. Several versions of transformer simulation models are developed in the MATLAB/Simulink SimPowerSystems environment, which are taken as their basic versions—functionally complete models that reflect the most essential properties of characteristic types of transformers and have varying degrees of versatility. It is shown that modification of the proposed models makes it possible to create a wide range of simulation models reflecting the specific features of a particular version of the transformer design for use as digital twins of transformers as part of a computer-aided design system at the stage of extended verification analysis. The simulation results are presented and analyzed.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644880","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}

{"title":"An Autonomous Power-Supply Station Based on an Asynchronous Generator with a Phase-Wound Rotor and a Low-Power Frequency Converter","authors":"A. B. Vinogradov, R. O. Gorelkin","doi":"10.3103/s1068371223110147","DOIUrl":"https://doi.org/10.3103/s1068371223110147","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Today, asynchronous and synchronous generators with double-link full-power frequency converters are the main options for designing highly efficient three-phase voltage sources with an internal combustion engine (ICE) as a prime mover and a variable rotation frequency as a function of the load. It is required to develop and study the efficiency of the use of an autonomous power-supply station with a variable rotation frequency based on a low-power frequency converter in order to provide a decrease in its cost with the potentialities of saving ICE fuel through controlling the frequency depending on the load. The power station and its control system is described both at a structural and at a functional level. The characteristics of the station have been studied by means of computer simulation with the use of the Delphi software package. To assess the potential fuel efficiency of the power station, a multiparameter characteristic of the YaMZ-238 internal combustion engine has been used. A functional diagram of the power station and a block diagram of its control system without using a rotation-frequency sensor are presented. Timing diagrams for the simulation of its operation with the use of an asymmetrical load, as well as its energy characteristics, are presented. The energy characteristics and potential fuel savings of the internal combustion engine when the power station operates with a symmetrical active-inductive load under the conditions of a multiple decrease in the power of the frequency converter with respect to the nominal power of the load. It is shown that, unlike well-known analogues, the developed power station makes it possible to ensure an at least twofold effective rotation-frequency control range of the internal combustion engine while limiting the nominal converter power to 20% of the nominal load power, which provides preconditions for significant fuel savings. The use of the power-supply station in the proposed design makes it possible to reduce its cost by decreasing the power of the converter and increasing the energy efficiency thereof via controlling the ICE rotation frequency with a satisfactory maintenance of accuracy of the output voltage under the conditions of a significantly asymmetric load. The reliability of the results obtained in the course of the studies has been confirmed by means of computer simulation.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645714","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}

{"title":"Sensorless Control of a Synchronous Motor Based on Fuzzy Logic","authors":"Yu. N. Khizhnyakov, A. A. Yuzhakov, S. A. Storozhev, V. S. Nikulin","doi":"10.3103/s1068371223110044","DOIUrl":"https://doi.org/10.3103/s1068371223110044","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The possibility of replacing the classic PI controller with a fuzzy controller for the existing system of automatic control of the rotor speed of a permanent magnet synchronous motor without a position sensor is considered. The use of PI rotor speed controllers for a permanent magnet synchronous motor has several disadvantages that should be taken into account when designing and operating such systems. Such controllers require careful adjustment of the coefficients to achieve the desired performance, they may be sensitive to changes in system parameters such as winding resistance or inductance, and they may have limited ability to respond to rapid and large load changes. The use of a fuzzy controller eliminates a number of disadvantages of the PI controller. The architecture of the proposed fuzzy controller is standard: a fuzzifier, a block of rules, and a defuzzifier. The fuzzy controller is of the Sugeno–Takagi type. The fuzzifier is based on triangular term sets, defuzzification is performed using the weighted average method. The number of fuzzy controller parameters has been optimized. The simulation was performed in the MATLAB/Simulink package, taking into account the changing load on the motor and changing motor parameters. The results obtained confirm the possibility and feasibility of replacing the PI controller with a fuzzy controller.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"309 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139649581","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}

{"title":"The Power-Transmission Limit of the Controlled High-Voltage Transmission Line for Modes at the Static Stability Boundary","authors":"V. P. Golov, D. N. Kormilitsyn, O. S. Sukhanova","doi":"10.3103/s1068371223110020","DOIUrl":"https://doi.org/10.3103/s1068371223110020","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>One method for increasing of power-transmission-line capacity is the use of series capacity devices. In addition, the use of controlled series compensation devices affects an electric-power system’s static stability. It is also widely known that automatic control of generator excitation has a positive effect on system stability. Thus, it is advisable to analyze the influence of a controlled series compensation device adjustable parameters on the line capacity when considering modes at the boundaries of stability areas, taking into account the automatic excitation of regulators on synchronous generators of a power plant. Methods of mathematical modeling of an electric-power system, the theory of long-distance power lines and electromechanical transient processes, and methods of analyzing the stability of electric-power systems were used. Original software in the C++ programming language was used as a modeling tool. Parameters of control laws of controlled series compensation device and an automatic excitation controller have been selected on the condition that static stability is maintained. Stability areas of the electric-power system under study have been constructed depending on the tuning parameters of the devices under consideration. A method for selecting complex control coefficients for devices to increase the capacity of a high-voltage power-transmission line is proposed. The proposed method for complex selection of regulation coefficients of controlled devices makes it possible to obtain their optimal values in a controlled electric-power system to ensure stability.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644881","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}

{"title":"A Starter–Generator Based on a Synchronous Machine with Permanent Magnets","authors":"O. V. Goncharovskiy, A. A. Yuzhakov, S. A. Storozhev, V. S. Nikulin","doi":"10.3103/s1068371223110032","DOIUrl":"https://doi.org/10.3103/s1068371223110032","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>An approach to the creation of a starter–generator using a synchronous machine with permanent magnets without a rotor-position sensor is considered. A synchronous machine with permanent magnets can operate in starter and generator modes. In the starter mode, field-oriented control is carried out to convert electrical energy from the battery into mechanical energy of the machine; in the generator mode, the battery is turned off, while the generator is running. The stabilizer provides an output voltage of 24 V with an input voltage from 24 to 150 V. Switching from the consumption mode to the generation mode is carried out without power off, which is a feature of the proposed starter–generator control system. The proposed stabilizer is capable of maintaining a stable output current of up to 40 A. A detailed description and the principle of operation of the stabilizer are given. A control system for a synchronous machine with permanent magnets has been developed, taking into account both operating modes.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139649524","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}

{"title":"The Influence of a Transformer with “Double Zigzag with Zero Output” Windings on the Level of Asymmetry and Nonsinusoidal Currents in a 0.38-kV Network","authors":"M. A. Yundin, K. M. Yundin, A. M. Isupova","doi":"10.3103/s1068371223110160","DOIUrl":"https://doi.org/10.3103/s1068371223110160","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of laboratory studies of the transverse inclusion of a transformer with a circuit for connecting “double zigzag with zero output” windings to a 0.38-kV network model in order to increase the capacity of the electrical network by reducing the operating current in the zero working conductor of a three-phase four-wire electrical network are presented. The analysis of currents creating a load of the zero working wire of the network with a voltage of 0.38 kV is performed. For the load side of the power transformer, the equations of the instantaneous values of the most significant harmonic components of the currents are presented, which are obtained from experimental studies with different load coefficients of the power transformer. The shunting effect of a transformer with a “double zigzag with zero output” winding connection scheme on the asymmetry coefficients of currents and voltages of the reverse and zero sequence, as well as on the distortion coefficients of the sinusoidal curves of currents and voltages and the coefficients of the third harmonic component of current and voltage, is estimated. The revealed patterns of changes in the current load of the zero working wire make it possible to improve the efficiency of electricity transmission in the electrical network, extend the service life of cable lines, and reduce the fire hazard of electrical installations.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644845","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}

{"title":"A Mathematical Model of Transients in a Cylindrical Linear Motor with Reciprocating Motion","authors":"N. V. Zhuzhgov, A. D. Korotaev, E. A. Chabanov","doi":"10.3103/s1068371223110172","DOIUrl":"https://doi.org/10.3103/s1068371223110172","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A mathematical description of transients in linear synchronous motors with permanent magnets is presented, based on the Park–Gorev differential equations applied to a synchronous motor of rotational action, transformed taking into account the necessary additions. A mathematical model in the MATLAB/Simulink software environment of a cylindrical linear synchronous motor designed to study transients during translational and reciprocating motion of a secondary element is considered. The most effective variant of the calculated motor module for the executive mechanism of the plane grinding machine is determined.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645180","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}

{"title":"Studies of a Self-Oscillation Mode of a Short-Circuited Long Line","authors":"K. V. Menaker, S. M. Kutsenko, M. V. Vostrikov, P. V. Savchenko","doi":"10.3103/s1068371223110081","DOIUrl":"https://doi.org/10.3103/s1068371223110081","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The mechanism of self-oscillation onset in a short-circuited long line segment in a mode of undistorted oscillation transmission, active loss exclusion and simultaneously affecting electric and wave resonances has been analytically and experimentally confirmed. Such a mode has been achieved owing to a certain relationship between the specific parameters of a symmetrical cable. The exclusion of active loss becomes possible when the input resistance of a short-circuited long line segment amounts to the wave resistance characterizing a line length corresponding to one-eighth of the wavelength under free oscillations acting at a frequency exhibited by a quarter-wave line due to connecting a capacitive element parallel to the input ends of the line. Electrical resonance has been achieved in an oscillatory circuit formed by the equivalent inductivity of a short-circuited long line segment and a capacity connected to the input ends of the line. The wave resonance in the absence of active losses is accompanied by a multifold increase in current at the end of the line with each wave pass along the line, while the voltage across the input of the line changes its sign with each wave pass. Owing to the presence of a capacitive element, both voltage across the input of the line, and current at the end of the line exhibit a multifold increase, which leads to an even greater increase in current. This process is avalanche-like. The field of practical application of the revealed self-oscillation mode can be rather extensive.</p>","PeriodicalId":39312,"journal":{"name":"Russian Electrical Engineering","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644656","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}