Electromechanical and energy saving systems最新文献

{"title":"STUDY ON THE OPERATION MODES OF THE ELEMENTS OF A CONTROLLED ELECTRIC DRIVE WITH A FAULT-TOLERANT ALGORITHM FOR DIRECT TORQUE CONTROL IN CASE OF STATOR WINDINGS DAMAGE BY MEANS OF MATHEMATICAL MODELING","authors":"V. Melnykov, A. Kalinov, D. Mamchur","doi":"10.30929/2072-2052.2022.3-4.59.37-43","DOIUrl":"https://doi.org/10.30929/2072-2052.2022.3-4.59.37-43","url":null,"abstract":"","PeriodicalId":122279,"journal":{"name":"Electromechanical and energy saving systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127913740","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":"MODEL AND ALGORITHM OF OPERATION OF THE ORIGINAL ELECTROMECHANICAL SYSTEM FOR ACCUMULATING KINETIC ENERGY FOR ELECTRIC CAR","authors":"M. Matkovsky, K. Semenov","doi":"10.30929/2072-2052.2021.3.55.41-48","DOIUrl":"https://doi.org/10.30929/2072-2052.2021.3.55.41-48","url":null,"abstract":"Purpose. The further introduction of electric transport is largely constrained by the insufficient energy capacity of existing energy storage devices. One of the possible replacements for the chemical accumulator is the flywheel energy storage, which has important advantages. This advantage is its potentially huge storage capacity. One of the disadvantages of flywheel drives is the presence of a gyroscopic moment, which leads to a deterioration in vehicle handling. Methodology. The authors of the work in their development of the flywheel drive have eliminated a number of shortcomings, but to use the drive, it is necessary to develop an operation algorithm and a mathematical model. A mathematical model of electrical and mechanical processes in the author’s electromechanical energy storage system is presented. It is shown that the charging and discharging currents of a storage device change exponentially with time, which should be taken into account when developing a specific implementation of drivers for storage motors. The algorithm of operation of the proposed electromechanical energy storage system in the modes of energy storage and energy withdrawal has been developed. Results. The verbal and graphical form of the algorithm is presented. It is noted that in the presence of an electromechanical transmission on a vehicle, the advantages of such a drive increase even more, which prompted the authors of this work to develop a new electromechanical transmission, which the authors plan to combine in the future with the developed drive based on one vehicle. Originality. In the direction of further increasing the efficiency of using the proposed storage device, as well as, incidentally, of their other types, it is also planned to use the electromechanical system for transmitting electricity to the vehicle, developed by the authors. Practical value. In the future, it is also planned to expand and clarify the algorithm of the drive, in order to take into account the types of charger, energy source, the presence of batteries on board the car, depending on the characteristics of the vehicle, road conditions, driver qualities, weather conditions, etc. (at the limit, go to an intelligent control system). It is planned to create a more detailed model of the drive. Figures 4, references 21.","PeriodicalId":122279,"journal":{"name":"Electromechanical and energy saving systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131064725","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":"SYNTHESIS OF A FUZZY TWO-LINKED REGULATOR FOR FREQUENCY ELECTRIC DRIVES OF A GRAIN MACHINE WITH A FOCUS OF THE GRAIN FLOW","authors":"E. Burdilna, І. Konokh, S. Serhiienko","doi":"10.30929/2072-2052.2021.3.55.16-23","DOIUrl":"https://doi.org/10.30929/2072-2052.2021.3.55.16-23","url":null,"abstract":"Purpose. A control system for grain overloading during post-harvest processing with grain throwers has been proposed, the use of which will reduce damage and grain loss. An automated electromechanical system is presented that can be installed on agricultural machinery without additional modernization of the working bodies. Methodology. As a result of the analysis of control systems, a system with elements of fuzzy logic was selected, which will clearly define the necessary control actions and take into account additional parameters that can affect the overload process. A functional diagram of a microprocessor control system for an electric drive using a fuzzy system is proposed. The result of the system operation will be the definition of the control task for the frequency converters of the drive motors of the grain thrower mechanisms. Originality. Based on the simulation of grain flight trajectories, the dependences of the flight range on the conveyor speed and additional blowing were formed, which were used to determine the settings of the fuzzy controller. Results. Fuzzy system settings are performed: a set of input and output variables is defined; the number and location of terms are selected; a set of production rules for the system is formulated. As a result of experimental modeling, graphs of the formation of mastering influences by a fuzzy controller under the condition of the appearance and disappearance of the headwind for different given distances of movement were obtained. Practical value. Practical application of the offered system will allow to reduce material losses from injury of the overloaded grain and to increase efficiency of work of the grain thrower. Figures 8, references 21.","PeriodicalId":122279,"journal":{"name":"Electromechanical and energy saving systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131237303","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":"MINIMIZATION OF ELECTRIC CONSUMPTION BY A FREQUENCY-REGULATED INDUCTION MOTOR IN START-BRAKING REGIMES","authors":"V. Volkov","doi":"10.30929/2072-2052.2021.2.54.8-21","DOIUrl":"https://doi.org/10.30929/2072-2052.2021.2.54.8-21","url":null,"abstract":"Purpuse. To minimize the total energy consumption in start-braking regimes of a three-phase frequency-regulated induction motor loaded with a constant static moment, as well as to take into account the effect of iron power losses of this motor on electrical losses of power and energy in its stator winding. Metodology. Based on the established similarity of mathematical dependences for calculating the electrical component of power losses in the stator winding of this motor, caused by the influence of iron power losses of the motor or the application of an additional fictitious static moment to it, the analytical dependences were refined to determine the total power and energy consumed by the motor in steady-state and start-braking regimes. Using the methods of calculus of variations and simulation, the form of energy-saving tachograms was determined, which ensure, in start-braking regimes, the minimization of the total power consumption of this motor, loaded with a constant static torque. Results. Analytical calculated dependencies are proposed for determining the energy consumption in the start-braking regimes of a frequency-regulated squirrel-cage induction motor loaded with a constant static moment, for various types of trajectories of speed change. Analytical dependencies are obtained, by means of which a quantitative assessment of the influence of iron power losses of the investigated motor on the values of the stator current modulus and electrical power and energy losses in its stator winding is carried out under steady-state and start-braking regimes. With regard to the constant load of this motor, the minimization of the active energy consumed by it in the start and braking regimes has been performed. For start-braking regimes with the proposed quasi-optimal and known types of tachograms, the optimal durations of acceleration and deceleration times, at which the consumption of active energy by the induction motor is minimal. Originality. The \"U\"-shaped form of dependences of the total consumed energy by the frequency-regulated induction motor on the durations of the acceleration and deceleration times has been established. For start-braking regimes, the minimization of the total energy consumed by this motor was carried out and quantified, achieved through the use of energy-saving tachograms and optimal durations of acceleration and deceleration times. Practical value. For start and braking regimes, a quantitative assessment of transient electromechanical and energy processes in a frequency-regulated short-circuited induction motor for driving vertical slab rolls was carried out and the expected annual saving of energy consumed by this motor in these regimes, achieved from the use of the proposed energy-saving tachograms, was determined. Figures 4, tables 5, references 19.","PeriodicalId":122279,"journal":{"name":"Electromechanical and energy saving systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115413725","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 MICROPROCESSOR SYSTEM FOR MONITORING THE ENERGY CONSUMPTION OF MOBILE ROBOT SERVO MOTORS","authors":"Jianjun Wang, C. Dong, K. Wang, Zhi-chu Chen, Rong Xie, Weiping Zhu, O. Susak, Oleksii Povorozniuk, Andrii Topalov","doi":"10.30929/2072-2052.2022.3-4.59.70-80","DOIUrl":"https://doi.org/10.30929/2072-2052.2022.3-4.59.70-80","url":null,"abstract":"","PeriodicalId":122279,"journal":{"name":"Electromechanical and energy saving systems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122583241","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}