Use and improvement of automatic systems for control of reduced electric power sources in local electric networks
THE PURPOSE. Consider the use of automatic systems for controlling reduced sources of electricity in local electrical networks. Explore the possibilities of expanding the functions of such automatic control systems to improve the quality of electricity in terms of eliminating power exchange and comm...
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| Format: | Article |
| Language: | English |
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Kazan State Power Engineering University
2022-08-01
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| Series: | Известия высших учебных заведений: Проблемы энергетики |
| Subjects: | |
| Online Access: | https://www.energyret.ru/jour/article/view/2310 |
| _version_ | 1797705267339591680 |
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| author | A. E. Savenko P. S. Savenko |
| author_facet | A. E. Savenko P. S. Savenko |
| author_sort | A. E. Savenko |
| collection | DOAJ |
| description | THE PURPOSE. Consider the use of automatic systems for controlling reduced sources of electricity in local electrical networks. Explore the possibilities of expanding the functions of such automatic control systems to improve the quality of electricity in terms of eliminating power exchange and common-mode oscillations. METHODS. Studies of diesel generator units operating in parallel in local electrical networks were carried out using mathematical modeling methods. The mathematical model takes into account the presence of the "backlash" phenomenon in the speed control loops. RESULTS. The expediency of using batteries, rectifier and inverter converters in local electrical networks is noted. Experimental studies in the local electrical network revealed the existence of power exchange and common-mode oscillations. Mathematical modeling also confirmed the occurrence of power exchange oscillations in the local electrical network due to the “backlash” in the frequency controller circuit, as well as power common-mode oscillations due to the difference in the frequency controller transmission coefficients for diesel generator units operating in parallel. A map of the dependence of the amplitude of power exchange oscillations on backlash gaps and a map of the dependence of the amplitude of power common-mode oscillations on the values of the gain of the frequency controller are obtained. CONCLUSION. The possibility of eliminating power exchange and common-mode oscillations by reducing and ensuring equality of the transmission coefficients of frequency controllers has been established. Adding the function of eliminating power exchange and common-mode oscillations to automatic control systems for reduced sources of electricity in local electrical networks ensures that the required quality of electricity is maintained in quasi-steady operating modes. |
| first_indexed | 2024-03-12T05:34:35Z |
| format | Article |
| id | doaj.art-8c413f350c794b368c089a2fa8a32107 |
| institution | Directory Open Access Journal |
| issn | 1998-9903 |
| language | English |
| last_indexed | 2024-03-12T05:34:35Z |
| publishDate | 2022-08-01 |
| publisher | Kazan State Power Engineering University |
| record_format | Article |
| series | Известия высших учебных заведений: Проблемы энергетики |
| spelling | doaj.art-8c413f350c794b368c089a2fa8a321072023-09-03T06:32:58ZengKazan State Power Engineering UniversityИзвестия высших учебных заведений: Проблемы энергетики1998-99032022-08-0124410511510.30724/1998-9903-2022-24-4-105-115875Use and improvement of automatic systems for control of reduced electric power sources in local electric networksA. E. Savenko0P. S. Savenko1Kerch State Maritime Technological UniversityKerch State Maritime Technological UniversityTHE PURPOSE. Consider the use of automatic systems for controlling reduced sources of electricity in local electrical networks. Explore the possibilities of expanding the functions of such automatic control systems to improve the quality of electricity in terms of eliminating power exchange and common-mode oscillations. METHODS. Studies of diesel generator units operating in parallel in local electrical networks were carried out using mathematical modeling methods. The mathematical model takes into account the presence of the "backlash" phenomenon in the speed control loops. RESULTS. The expediency of using batteries, rectifier and inverter converters in local electrical networks is noted. Experimental studies in the local electrical network revealed the existence of power exchange and common-mode oscillations. Mathematical modeling also confirmed the occurrence of power exchange oscillations in the local electrical network due to the “backlash” in the frequency controller circuit, as well as power common-mode oscillations due to the difference in the frequency controller transmission coefficients for diesel generator units operating in parallel. A map of the dependence of the amplitude of power exchange oscillations on backlash gaps and a map of the dependence of the amplitude of power common-mode oscillations on the values of the gain of the frequency controller are obtained. CONCLUSION. The possibility of eliminating power exchange and common-mode oscillations by reducing and ensuring equality of the transmission coefficients of frequency controllers has been established. Adding the function of eliminating power exchange and common-mode oscillations to automatic control systems for reduced sources of electricity in local electrical networks ensures that the required quality of electricity is maintained in quasi-steady operating modes.https://www.energyret.ru/jour/article/view/2310local electric networkpower systempower exchange oscillationspower commonmode oscillationsreduced electric power sources |
| spellingShingle | A. E. Savenko P. S. Savenko Use and improvement of automatic systems for control of reduced electric power sources in local electric networks Известия высших учебных заведений: Проблемы энергетики local electric network power system power exchange oscillations power commonmode oscillations reduced electric power sources |
| title | Use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| title_full | Use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| title_fullStr | Use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| title_full_unstemmed | Use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| title_short | Use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| title_sort | use and improvement of automatic systems for control of reduced electric power sources in local electric networks |
| topic | local electric network power system power exchange oscillations power commonmode oscillations reduced electric power sources |
| url | https://www.energyret.ru/jour/article/view/2310 |
| work_keys_str_mv | AT aesavenko useandimprovementofautomaticsystemsforcontrolofreducedelectricpowersourcesinlocalelectricnetworks AT pssavenko useandimprovementofautomaticsystemsforcontrolofreducedelectricpowersourcesinlocalelectricnetworks |