Direct Voltage Control in Grids With Intermittent Sources Using UPFC
This paper proposes the use of a circuit with topology similar to an UPFC for direct voltage control in electric grids with highly intermittent generation sources such as wind generators. The variable characteristics of these sources strongly affect the voltage profile in the grids. The objective o...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Eletrônica de Potência
2014-08-01
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| Series: | Eletrônica de Potência |
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| Online Access: | https://journal.sobraep.org.br/index.php/rep/article/view/496 |
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| author | Silvangela. L. S. Lima Robson F. S. Dias Edson H. Watanabe |
| author_facet | Silvangela. L. S. Lima Robson F. S. Dias Edson H. Watanabe |
| author_sort | Silvangela. L. S. Lima |
| collection | DOAJ |
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This paper proposes the use of a circuit with topology similar to an UPFC for direct voltage control in electric grids with highly intermittent generation sources such as wind generators. The variable characteristics of these sources strongly affect the voltage profile in the grids. The objective of this paper is to show through a conceptual analysis that it is possible to obtain precise and fast voltage control by using an UPFC. It is shown that the UPFC rating is smaller than that of a STATCOM or SVC, which should be necessary for indirect voltage control. The UPFC does not have limitation due to the number of operation per day as in the case of transformers with on load tap changer. The UPFC based on single-phase VSC is analyzed and the series converter is connected directly to the grid without transformer. It controls the voltage independently in each phase, therefore balancing it, if necessary. Simulation results using PSCAD/EMTDC are presented to confirm all these advantages of the use of UPFC for direct voltage control. The models used in this work are classic and well validated, being sufficient to prove the principles proposed.
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| format | Article |
| id | doaj-art-1d9add096eae4e21b1bba3b6e46d60e7 |
| institution | OA Journals |
| issn | 1414-8862 1984-557X |
| language | English |
| publishDate | 2014-08-01 |
| publisher | Associação Brasileira de Eletrônica de Potência |
| record_format | Article |
| series | Eletrônica de Potência |
| spelling | doaj-art-1d9add096eae4e21b1bba3b6e46d60e72025-08-20T01:47:59ZengAssociação Brasileira de Eletrônica de PotênciaEletrônica de Potência1414-88621984-557X2014-08-0119310.18618/REP.2014.3.260267496Direct Voltage Control in Grids With Intermittent Sources Using UPFCSilvangela. L. S. Lima0Robson F. S. Dias1Edson H. Watanabe2Universidade Federal do Rio de Janeiro - Electrical Eng. Dept. - COPPE, Rio de Janeiro, BrasilUniversidade Federal do Rio de Janeiro - Electrical Eng. Dept. - COPPE, Rio de Janeiro, BrasilUniversidade Federal do Rio de Janeiro - Electrical Eng. Dept. - COPPE, Rio de Janeiro, Brasil This paper proposes the use of a circuit with topology similar to an UPFC for direct voltage control in electric grids with highly intermittent generation sources such as wind generators. The variable characteristics of these sources strongly affect the voltage profile in the grids. The objective of this paper is to show through a conceptual analysis that it is possible to obtain precise and fast voltage control by using an UPFC. It is shown that the UPFC rating is smaller than that of a STATCOM or SVC, which should be necessary for indirect voltage control. The UPFC does not have limitation due to the number of operation per day as in the case of transformers with on load tap changer. The UPFC based on single-phase VSC is analyzed and the series converter is connected directly to the grid without transformer. It controls the voltage independently in each phase, therefore balancing it, if necessary. Simulation results using PSCAD/EMTDC are presented to confirm all these advantages of the use of UPFC for direct voltage control. The models used in this work are classic and well validated, being sufficient to prove the principles proposed. https://journal.sobraep.org.br/index.php/rep/article/view/496Direct Voltage Control (DVC)Indirect Voltage Control (IVC)Static Synchronous Compensator (STATCOM)Wind Generator (WG)Unified Power Flow Controller (UPFC) |
| spellingShingle | Silvangela. L. S. Lima Robson F. S. Dias Edson H. Watanabe Direct Voltage Control in Grids With Intermittent Sources Using UPFC Eletrônica de Potência Direct Voltage Control (DVC) Indirect Voltage Control (IVC) Static Synchronous Compensator (STATCOM) Wind Generator (WG) Unified Power Flow Controller (UPFC) |
| title | Direct Voltage Control in Grids With Intermittent Sources Using UPFC |
| title_full | Direct Voltage Control in Grids With Intermittent Sources Using UPFC |
| title_fullStr | Direct Voltage Control in Grids With Intermittent Sources Using UPFC |
| title_full_unstemmed | Direct Voltage Control in Grids With Intermittent Sources Using UPFC |
| title_short | Direct Voltage Control in Grids With Intermittent Sources Using UPFC |
| title_sort | direct voltage control in grids with intermittent sources using upfc |
| topic | Direct Voltage Control (DVC) Indirect Voltage Control (IVC) Static Synchronous Compensator (STATCOM) Wind Generator (WG) Unified Power Flow Controller (UPFC) |
| url | https://journal.sobraep.org.br/index.php/rep/article/view/496 |
| work_keys_str_mv | AT silvangelalslima directvoltagecontrolingridswithintermittentsourcesusingupfc AT robsonfsdias directvoltagecontrolingridswithintermittentsourcesusingupfc AT edsonhwatanabe directvoltagecontrolingridswithintermittentsourcesusingupfc |