Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator
The widespread applying of electrical grids with voltage classes 330 and 750 kV with powerful units of nuclear and heat power plants creates a set of problems with normal modes ensuring in the Ukrainian energy system. Due to sufficiently great transverse capacitance of such overhead lines, significa...
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| Format: | Article |
| Language: | English |
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Lviv Polytechnic National University
2020-12-01
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| Series: | Energy Engineering and Control Systems |
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| Online Access: | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-6-number-2-2020/voltage-deviations-influence-asynchronous |
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| author | Kostiantyn Pokrovskyi Andriy Muzychak |
| author_facet | Kostiantyn Pokrovskyi Andriy Muzychak |
| author_sort | Kostiantyn Pokrovskyi |
| collection | DOAJ |
| description | The widespread applying of electrical grids with voltage classes 330 and 750 kV with powerful units of nuclear and heat power plants creates a set of problems with normal modes ensuring in the Ukrainian energy system. Due to sufficiently great transverse capacitance of such overhead lines, significant amounts of reactive power excess are possible in the system. This phenomenon manifests itself especially in the load reduction hours in the power system through the visible voltage levels deviation at the energy-generating nodes in an upward direction. The application of asynchronized turbogenerators with the ability to work in asynchronous mode could solve the problem of reactive power excesses in the energy-generating nodes during load reduction hours in the power system due to their possibility of deep reactive power consumption. The paper presents the calculated results of the asynchronous modes coordinates for an asynchronized turbogenerator with a capacity 1000 MW based on the parameters of the equivalent circuit, taking into account possible generator stator voltage deviations within ±10%. The influence of voltage deviations on the asynchronous modes coordinates is shown. Due to the obtained characteristics, it is possible to perform engineering estimations of the possible asynchronous mode applying for the asynchronized generator under conditions of nuclear and thermal power plants and taking into account possible voltage deviations. |
| format | Article |
| id | doaj-art-a35929c583684d97b87f45bf7b11b543 |
| institution | Matheson Library |
| issn | 2411-8028 2415-7287 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Lviv Polytechnic National University |
| record_format | Article |
| series | Energy Engineering and Control Systems |
| spelling | doaj-art-a35929c583684d97b87f45bf7b11b5432025-06-25T07:48:18ZengLviv Polytechnic National UniversityEnergy Engineering and Control Systems2411-80282415-72872020-12-01210410910.23939/jeecs2020.02.104Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator Kostiantyn Pokrovskyi0Andriy Muzychak1Lviv Polytechnic National UniversityLviv Polytechnic National UniversityThe widespread applying of electrical grids with voltage classes 330 and 750 kV with powerful units of nuclear and heat power plants creates a set of problems with normal modes ensuring in the Ukrainian energy system. Due to sufficiently great transverse capacitance of such overhead lines, significant amounts of reactive power excess are possible in the system. This phenomenon manifests itself especially in the load reduction hours in the power system through the visible voltage levels deviation at the energy-generating nodes in an upward direction. The application of asynchronized turbogenerators with the ability to work in asynchronous mode could solve the problem of reactive power excesses in the energy-generating nodes during load reduction hours in the power system due to their possibility of deep reactive power consumption. The paper presents the calculated results of the asynchronous modes coordinates for an asynchronized turbogenerator with a capacity 1000 MW based on the parameters of the equivalent circuit, taking into account possible generator stator voltage deviations within ±10%. The influence of voltage deviations on the asynchronous modes coordinates is shown. Due to the obtained characteristics, it is possible to perform engineering estimations of the possible asynchronous mode applying for the asynchronized generator under conditions of nuclear and thermal power plants and taking into account possible voltage deviations.https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-6-number-2-2020/voltage-deviations-influence-asynchronousasynchronized generatorasynchronous modereactive powergenerator mode |
| spellingShingle | Kostiantyn Pokrovskyi Andriy Muzychak Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator Energy Engineering and Control Systems asynchronized generator asynchronous mode reactive power generator mode |
| title | Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator |
| title_full | Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator |
| title_fullStr | Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator |
| title_full_unstemmed | Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator |
| title_short | Voltage Deviations Influence on Asynchronous Characteristics of Powerful Asynchronized Turbogenerator |
| title_sort | voltage deviations influence on asynchronous characteristics of powerful asynchronized turbogenerator |
| topic | asynchronized generator asynchronous mode reactive power generator mode |
| url | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-6-number-2-2020/voltage-deviations-influence-asynchronous |
| work_keys_str_mv | AT kostiantynpokrovskyi voltagedeviationsinfluenceonasynchronouscharacteristicsofpowerfulasynchronizedturbogenerator AT andriymuzychak voltagedeviationsinfluenceonasynchronouscharacteristicsofpowerfulasynchronizedturbogenerator |