Control system for a frequency synchronized asynchronous electric drive
THE PURPOSE. In controlled AC drives used on continuous-action mechanisms, which include conveyors, conveyors, cranes, the most widespread are asynchronous motors with a phase rotor, controlled mainly along the rotor circuit using various regulators with low energy efficiency. To improve the energy...
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| Language: | English |
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Kazan State Power Engineering University
2021-07-01
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| Series: | Известия высших учебных заведений: Проблемы энергетики |
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| Online Access: | https://www.energyret.ru/jour/article/view/1848 |
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| author | V. N. Meshcheryakov D. S. Sibirtsev S. Valtchev E. I. Gracheva |
| author_facet | V. N. Meshcheryakov D. S. Sibirtsev S. Valtchev E. I. Gracheva |
| author_sort | V. N. Meshcheryakov |
| collection | DOAJ |
| description | THE PURPOSE. In controlled AC drives used on continuous-action mechanisms, which include conveyors, conveyors, cranes, the most widespread are asynchronous motors with a phase rotor, controlled mainly along the rotor circuit using various regulators with low energy efficiency. To improve the energy efficiency of an electric drive based on ADFR, it is proposed to develop a control system that combines the principles of frequency control of the motor along the stator circuit and powering the rotor circuit with constant voltage, which allows the electric drive to be considered synchronized. METHODS. The presence of a DC link in the frequency converter makes it possible in principle to connect the rotor winding in series to this link. However, in order to ensure the frequency principle of regulating the output characteristics of the electric drive, it will be necessary to regulate the rectified current at the input of the inverter and, accordingly, in the rotor windings, which will require a significant change in the standard control system of the frequency converter. The use of an additional adjustable switch in the DC link is proposed. RESULTS. The study of the proposed non-standard control system for a frequency asynchronous synchronized electric drive was carried out by the method of simulation modeling in the Matlab Simulink software package. CONCLUSION. A control system for a frequency asynchronous synchronized electric drive has been developed and investigated on a computer model. A correction system is proposed that allows maintaining a constant value of the load angle in the starting mode. The scalar system of relay frequency control of the electric drive is supplemented with vector correction of the variables, which makes it possible to continuously provide the necessary mutual orientation of the stator current vectors and the rotor flux linkage. |
| format | Article |
| id | doaj-art-1dacc40537f94bd098bba7faf4105174 |
| institution | Kabale University |
| issn | 1998-9903 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Kazan State Power Engineering University |
| record_format | Article |
| series | Известия высших учебных заведений: Проблемы энергетики |
| spelling | doaj-art-1dacc40537f94bd098bba7faf41051742024-11-26T11:39:41ZengKazan State Power Engineering UniversityИзвестия высших учебных заведений: Проблемы энергетики1998-99032021-07-0123311612610.30724/1998-9903-2021-23-3-116-126765Control system for a frequency synchronized asynchronous electric driveV. N. Meshcheryakov0D. S. Sibirtsev1S. Valtchev2E. I. Gracheva3Lipetsk State Technical UniversityLipetsk State Technical UniversityNew University of LisbonKazan State Energy UniversityTHE PURPOSE. In controlled AC drives used on continuous-action mechanisms, which include conveyors, conveyors, cranes, the most widespread are asynchronous motors with a phase rotor, controlled mainly along the rotor circuit using various regulators with low energy efficiency. To improve the energy efficiency of an electric drive based on ADFR, it is proposed to develop a control system that combines the principles of frequency control of the motor along the stator circuit and powering the rotor circuit with constant voltage, which allows the electric drive to be considered synchronized. METHODS. The presence of a DC link in the frequency converter makes it possible in principle to connect the rotor winding in series to this link. However, in order to ensure the frequency principle of regulating the output characteristics of the electric drive, it will be necessary to regulate the rectified current at the input of the inverter and, accordingly, in the rotor windings, which will require a significant change in the standard control system of the frequency converter. The use of an additional adjustable switch in the DC link is proposed. RESULTS. The study of the proposed non-standard control system for a frequency asynchronous synchronized electric drive was carried out by the method of simulation modeling in the Matlab Simulink software package. CONCLUSION. A control system for a frequency asynchronous synchronized electric drive has been developed and investigated on a computer model. A correction system is proposed that allows maintaining a constant value of the load angle in the starting mode. The scalar system of relay frequency control of the electric drive is supplemented with vector correction of the variables, which makes it possible to continuously provide the necessary mutual orientation of the stator current vectors and the rotor flux linkage.https://www.energyret.ru/jour/article/view/1848asynchronous synchronized electric driveasynchronous motor with a wound rotorautonomous current inverterfrequency controlcorrection, controlled transistor switchcomputer simulationfrequency converter, relay current regulator |
| spellingShingle | V. N. Meshcheryakov D. S. Sibirtsev S. Valtchev E. I. Gracheva Control system for a frequency synchronized asynchronous electric drive Известия высших учебных заведений: Проблемы энергетики asynchronous synchronized electric drive asynchronous motor with a wound rotor autonomous current inverter frequency control correction, controlled transistor switch computer simulation frequency converter, relay current regulator |
| title | Control system for a frequency synchronized asynchronous electric drive |
| title_full | Control system for a frequency synchronized asynchronous electric drive |
| title_fullStr | Control system for a frequency synchronized asynchronous electric drive |
| title_full_unstemmed | Control system for a frequency synchronized asynchronous electric drive |
| title_short | Control system for a frequency synchronized asynchronous electric drive |
| title_sort | control system for a frequency synchronized asynchronous electric drive |
| topic | asynchronous synchronized electric drive asynchronous motor with a wound rotor autonomous current inverter frequency control correction, controlled transistor switch computer simulation frequency converter, relay current regulator |
| url | https://www.energyret.ru/jour/article/view/1848 |
| work_keys_str_mv | AT vnmeshcheryakov controlsystemforafrequencysynchronizedasynchronouselectricdrive AT dssibirtsev controlsystemforafrequencysynchronizedasynchronouselectricdrive AT svaltchev controlsystemforafrequencysynchronizedasynchronouselectricdrive AT eigracheva controlsystemforafrequencysynchronizedasynchronouselectricdrive |