D. Tugay, Yurii Kolontaievskyi, S. Korneliuk, Valentyn Akymov
{"title":"Comparison of the compensation quality for active power filter control techniques","authors":"D. Tugay, Yurii Kolontaievskyi, S. Korneliuk, Valentyn Akymov","doi":"10.1109/KhPIWeek51551.2020.9250092","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250092","url":null,"abstract":"Four modified block diagrams and calculated ratios for the control systems synthesis of the shunt active power filter for industrial energy supply systems are proposed. Comparison of the corresponding quality compensation control techniques for the shunt active power filter is made. It is proved that for three-phase four-wire electric energy networks with asymmetrical or semiconductor consumers and power source under practical conditions, preference should be given to proportional-vector control algorithms.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122630603","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":"PWM Switching Strategy of Three-Phase Inverters for Synchronous Control of Double-Delta-Winding System","authors":"V. Oleschuk, V. Ermuratskii","doi":"10.1109/KhPIWeek51551.2020.9250112","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250112","url":null,"abstract":"In this manuscript, schemes and algorithms of multi-zone synchronous modulation have been disseminated for adjustment of two two-level voltage source inverters (VSIs) of double-delta-winding power system, which is perspective for application in the medium/high power adjustable speed ac drives. Specific switching strategy of two VSIs adjusted by modified algorithms and techniques of pulsewidth modulation (PWM) assure synchronization and symmetries of both output voltage of VSIs and winding voltage. Spectrum of stator winding voltage of drive installation does not contain even-order harmonics and undesirable subharmonics. Behavior of two-inverter-based system adjusted by two versions of synchronous PWM has been estimated with emphasize on analysis of stator winding voltage distortion of double-delta-sourced winding system.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133758207","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":"Modeling and Active Shielding of Magnetic Field with Circular Space-Time Characteristic","authors":"B. Kuznetsov, I. Bovdui, T. Nikitina","doi":"10.1109/KhPIWeek51551.2020.9250091","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250091","url":null,"abstract":"The distribution of the magnetic flux density of the magnetic field created by overhead power lines with a delta arrangement of conductors with a space-time characteristic in the shape of a circle is calculated. For this magnetic field, the calculation of an active shielding system with two shielding coils was carried out. To calculate of the parameters for the active screening system, the solution of the multicriteria game is calculated. The payoff vector is calculated based on the solution of the quasi-stationary approximation of Maxwell's equations. To calculate the solution of the game, the algorithms of optimization by multiswarm multi-particle are used. The magnetic flux density in the shielding space is reduced to the level of sanitary standards.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134112176","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":"Improvement of the multifunctional converter of the photoelectric system with a storage battery for a local object with connection to a grid","authors":"Olexandr Shavolkin, I. Shvedchykova","doi":"10.1109/KhPIWeek51551.2020.9250096","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250096","url":null,"abstract":"The issues of improving the multifunctional converter with the combination of the function of the active filter for a photoelectric power system with a storage battery for a local object with a connection to the grid are considered. The principles of autonomous operation mode implementation with the use of the current value of the short-circuit current of the photovoltaic battery and the regulation of load power are developed. The control system of the unit with alterable structure of regulators is improved. It contains: internal current control loop of grid inverter, external voltage stabilization loop at the inverter input at work with grid and circuit with regulator of load voltage in autonomous mode. Depending on the power of the photovoltaic battery and the load, the maximum and actual value of the current of the photovoltaic battery, the degree of charge of the storage battery, limiting the current of the grid, the voltage stabilization is provided by regulating the current of the grid or current of a photovoltaic battery or current of a storage battery. This is carried out by one of the three voltage regulators, determined by the control unit. In autonomous operation mode, to maintain the possibility of recharging the storage battery, simultaneous operation of the channels for regulating the current of the photovoltaic battery and the storage battery current is possible while reducing the load voltage within acceptable limits; the maximum power mode of the photovoltaic battery is set according to the measured value of the short-circuit current of it. There is a mode of compelled storage battery charge for multi-zone tariffing. The results of simulation of the system “grid - converter - load” confirm the efficiency of the proposed solutions.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115699244","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}
K. Avramov, N. Sakhno, M. Chernobryvko, B. Uspensky, K. Seitkazenova, D. Myrzaliyev
{"title":"Self-sustained oscillations of nanotubes reinforced composite thin-walled structures","authors":"K. Avramov, N. Sakhno, M. Chernobryvko, B. Uspensky, K. Seitkazenova, D. Myrzaliyev","doi":"10.1109/KhPIWeek51551.2020.9250099","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250099","url":null,"abstract":"The self-sustained oscillations of functionally graded nanotubes reinforced composite thin-walled structures are treated with account of geometrical nonlinearity. The Reddy shear deformation theory is used in this analysis. The system of the nonlinear dynamical system is derived by assumed-mode method to study the structure dynamic instability and the self-sustained vibrations. The self-sustained oscillations take place due to the Hopf bifurcation. The self-sustained oscillations are calculated by the harmonic balance method.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115729952","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}
V. Burlaka, S. Gulakov, S. Podnebennaya, Ekaterina Kudinova, O. Savenko
{"title":"Bidirectional single stage isolated DC-AC converter","authors":"V. Burlaka, S. Gulakov, S. Podnebennaya, Ekaterina Kudinova, O. Savenko","doi":"10.1109/KhPIWeek51551.2020.9250107","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250107","url":null,"abstract":"A topology of bidirectional AC-DC single stage converter with galvanic isolation is proposed. The conversion is performed in one stage by using an original topology derived from LLC dual active bridge converters. By combining PWM and frequency control, it is possible to control conversion ratio and equivalent output impedance of the converter. The proposed converter can be used as off-line uninterruptible power supply with pure sinewave output, enabling both DC-AC conversion in battery backup mode and AC-DC conversion for battery charging with mains present. It can also be used as a bidirectional grid-tie inverter capable of transferring power between mains and DC voltage source (e.g. supercapacitor, battery, fuel cell, photovoltaic panels, wind generator, etc.).","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116728613","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}
K. Korytchenko, R. Tomashevskiy, I. Varshamova, S. Essmann, D. Dubinin, K. Ostapov
{"title":"Challenges of energy measurements of low-energy spark discharges","authors":"K. Korytchenko, R. Tomashevskiy, I. Varshamova, S. Essmann, D. Dubinin, K. Ostapov","doi":"10.1109/KhPIWeek51551.2020.9250172","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250172","url":null,"abstract":"The method of measuring the energy deposited into the gas-discharge gap of a low-energy discharge that is based on measuring the discharge current and voltage across the spark gap has been analyzed. A numerical model of transient in a distributed-element circuit is used to assess the connection impact. The effect of the connection distance between the highvoltage probe and the tips of discharge electrodes on the correct measurement of voltage across the gap is revealed. The difference between the discharge current flowing through the gas discharge gap and the discharge current flowing through the discharge capacitor is evaluated.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122985622","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":"Optimality levels assessment for microgrid electricity generation and consumption processes","authors":"S. Denysiuk, V. Opryshko","doi":"10.1109/KhPIWeek51551.2020.9250117","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250117","url":null,"abstract":"Optimality levels assessment for microgrid electricity generation and consumption processes becomes especially relevant within Demand Side Management (DSM) creation and its mechanisms, the formation of management and control rules for multi-agent systems with the development of appropriate multi-agent control systems. Therefore, there is a need to assess optimality of the generation and the consumption modes from the same positions, paying attention not only to electricity quality but to the quality of energy supply. It is proposed to use the Frieze reactive power QF.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121071764","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}
O. Strelnikova, Vasyl Gnitko, Kyryl Degtyariov, A. Tonkonozhenko
{"title":"Advanced computational models and software on predicting the effective elastic properties for computer-simulated structures of nanocomposite","authors":"O. Strelnikova, Vasyl Gnitko, Kyryl Degtyariov, A. Tonkonozhenko","doi":"10.1109/KhPIWeek51551.2020.9250093","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250093","url":null,"abstract":"New computational models and software tools for effective evaluation of elastic properties of matrix-type nanocomposites and periodically structured composite materials of 3-D configuration are elaborated. This means nanoscale modification of continuum mechanics and micromechanics models for reliable description of the behavior of involved objects, adapted to these models numerical simulation and software, demonstration of numerical analysis possibilities with the specification of material and spatial peculiarities of nanocomposites. Computational models and algorithms for analysing the strong material contrast of components in 3-D systems of “matrix-nanoparticle”, with complicated shapes and interaction of nanoinclusions are developed. Specific interface surfaces with the imperfect contact of components at the nanoscale, in particular, due to the existence of surface tension are considered. The method of determining effective elastic modulus of various representative volume elements of three-dimensional nanocomposites is developed. It allows us to study the influence of shapes and relative dimensions of inhomogeneities and matrixes of the representative volume element on effective elastic modulus of nanocomposites for synthesis of nanocomposites with improved deformation and stiffness characteristics","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123846406","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":"Combined Defects Recognition in the Low and Medium Temperature Range by Results of Dissolved Gas Analysis","authors":"O. Shutenko, O. Kulyk","doi":"10.1109/KhPIWeek51551.2020.9250131","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250131","url":null,"abstract":"A comprehensive analysis of the oil gas content of 125 high-voltage transformers with combined defects in the low and medium temperature range was carried out for the first time ever. The values of gas percentage and gas ratio for each of 14 defect types were obtained. New 12 nomograms and graphic areas for combined defects in the low and medium temperature range were obtained firstly. The reliability of data recognition using known standards and methods was analysed. The given data allow increasing the reliability of defect type recognition by results of analysis of gases dissolved in oil.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676714","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}