AUTOMATIC ADJUSTMENT OF REACTIVE POWER BY FACTS DEVICES UNDER CONDITIONS OF VOLTAGE INSTABILITY IN THE ELECTRIC NETWORK
Mykhailo Burbelo
burbelomj@gmail.comVinnytsia National Technical University (Ukraine)
https://orcid.org/0000-0002-4510-2911
Oleksii Babenko
Vinnytsia National Technical University (Ukraine)
https://orcid.org/0000-0003-2773-6571
Yurii Loboda
Vinnytsia National Technical University (Ukraine)
https://orcid.org/0000-0002-5397-4656
Denys Lebed
Vinnytsia National Technical University (Ukraine)
https://orcid.org/0000-0001-7482-9741
Oleg K. Kolesnytskyj
Vinnytsia National Technical University (Ukraine)
https://orcid.org/0000-0003-0336-4910
Saule J. Rakhmetullina
D.Serikbayev East Kazakhstan Technical University (Kazakhstan)
https://orcid.org/0000-0002-3142-0249
Murat Mussabekov
Institute "Transport Engineering" of JSC "Academy of Logistics and Transport" (Kazakhstan)
https://orcid.org/0009-0004-1218-9696
Abstract
This article describes the problem of automatic regulation of reactive power using electronic devices FACTS (Flexible AC Transmission Systems): static synchronous compensator (STATCOM) and unified power flow controller (UPFC). With the help of a complex writing form, the following are determined: voltages at the installation nodes of the FACTS device and loads, currents of loads, power sources and electronic compensators in case of voltage instability at the load node of the electrical network. Voltages and currents are determined using the node-voltage method. The task of STATCOM is partial or full compensation of reactive power. During the reduction of the voltage at the load node, the reactive power generated by the power source decreases. The STATCOM should partially or fully compensate for the reactive power imbalance as quickly as possible. However, at the same time, it is not possible to fully compensate for the voltage reduction. A series-parallel or parallel-series UPFC can be used to solve this problem. As a result of using the UPFC, it is possible to automatically raise the voltage level to acceptable values with the help of the UPFC series compensator. The analysis shows that the parallel-serial UPFC is characterized by the stability of operation. In the case of using a series-parallel UPFC, there are restrictions on the ability to adjust the imaginary voltage component of the series compensator, since the angle of the voltage vector changes, which causes a failure in the operation of the regulator of the parallel compensator UPFC.
Keywords:
reactive power, static synchronous compensator, unified power flow regulator, voltage instabilityReferences
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Authors
Mykhailo Burbeloburbelomj@gmail.com
Vinnytsia National Technical University Ukraine
https://orcid.org/0000-0002-4510-2911
Authors
Oleksii BabenkoVinnytsia National Technical University Ukraine
https://orcid.org/0000-0003-2773-6571
Authors
Yurii LobodaVinnytsia National Technical University Ukraine
https://orcid.org/0000-0002-5397-4656
Authors
Denys LebedVinnytsia National Technical University Ukraine
https://orcid.org/0000-0001-7482-9741
Authors
Oleg K. KolesnytskyjVinnytsia National Technical University Ukraine
https://orcid.org/0000-0003-0336-4910
Authors
Saule J. RakhmetullinaD.Serikbayev East Kazakhstan Technical University Kazakhstan
https://orcid.org/0000-0002-3142-0249
Authors
Murat MussabekovInstitute "Transport Engineering" of JSC "Academy of Logistics and Transport" Kazakhstan
https://orcid.org/0009-0004-1218-9696
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