Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions
Abstract This paper presents an improved virtual synchronous control (VSynC) for the grid-connected voltage source converter (VSC) so as to continuously operate under the grid voltage with steady unbalance. The improved VSynC introduces the negative sequence power controls on basis of conventional V...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-04-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40565-018-0388-2 |
| _version_ | 1819298399299567616 |
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| author | Lei SHANG Jiabing HU Xiaoming YUAN Yunhui HUANG |
| author_facet | Lei SHANG Jiabing HU Xiaoming YUAN Yunhui HUANG |
| author_sort | Lei SHANG |
| collection | DOAJ |
| description | Abstract This paper presents an improved virtual synchronous control (VSynC) for the grid-connected voltage source converter (VSC) so as to continuously operate under the grid voltage with steady unbalance. The improved VSynC introduces the negative sequence power controls on basis of conventional VSynC. The improved VSynC is capable of regulating the negative sequence internal voltage to reduce the negative-sequence injected currents and oscillated powers of the VSC aroused by the negative-sequence grid voltage. Three alternative local control objectives for the VSC itself under steady state unbalanced grid conditions and their corresponding power references are deduced and computed. Simulated and experimental results are presented to validate the correctness and effectiveness of the proposed improved VSynC to enhance the continuous operation performance of VSynC-based VSCs during grid voltage steady-state unbalance. |
| first_indexed | 2024-12-24T05:29:17Z |
| format | Article |
| id | doaj.art-19cabfc4127a4b5d912087a3ccea7e32 |
| institution | Directory Open Access Journal |
| issn | 2196-5625 2196-5420 |
| language | English |
| last_indexed | 2024-12-24T05:29:17Z |
| publishDate | 2018-04-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-19cabfc4127a4b5d912087a3ccea7e322022-12-21T17:13:12ZengIEEEJournal of Modern Power Systems and Clean Energy2196-56252196-54202018-04-017117418510.1007/s40565-018-0388-2Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditionsLei SHANG0Jiabing HU1Xiaoming YUAN2Yunhui HUANG3Huazhong University of Science and TechnologyHuazhong University of Science and TechnologyHuazhong University of Science and TechnologyWuhan University of TechnologyAbstract This paper presents an improved virtual synchronous control (VSynC) for the grid-connected voltage source converter (VSC) so as to continuously operate under the grid voltage with steady unbalance. The improved VSynC introduces the negative sequence power controls on basis of conventional VSynC. The improved VSynC is capable of regulating the negative sequence internal voltage to reduce the negative-sequence injected currents and oscillated powers of the VSC aroused by the negative-sequence grid voltage. Three alternative local control objectives for the VSC itself under steady state unbalanced grid conditions and their corresponding power references are deduced and computed. Simulated and experimental results are presented to validate the correctness and effectiveness of the proposed improved VSynC to enhance the continuous operation performance of VSynC-based VSCs during grid voltage steady-state unbalance.http://link.springer.com/article/10.1007/s40565-018-0388-2Grid voltage unbalanceVirtual synchronous control (VSynC)Grid-connected voltage source converter (VSC) |
| spellingShingle | Lei SHANG Jiabing HU Xiaoming YUAN Yunhui HUANG Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions Journal of Modern Power Systems and Clean Energy Grid voltage unbalance Virtual synchronous control (VSynC) Grid-connected voltage source converter (VSC) |
| title | Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions |
| title_full | Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions |
| title_fullStr | Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions |
| title_full_unstemmed | Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions |
| title_short | Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions |
| title_sort | improved virtual synchronous control for grid connected vscs under grid voltage unbalanced conditions |
| topic | Grid voltage unbalance Virtual synchronous control (VSynC) Grid-connected voltage source converter (VSC) |
| url | http://link.springer.com/article/10.1007/s40565-018-0388-2 |
| work_keys_str_mv | AT leishang improvedvirtualsynchronouscontrolforgridconnectedvscsundergridvoltageunbalancedconditions AT jiabinghu improvedvirtualsynchronouscontrolforgridconnectedvscsundergridvoltageunbalancedconditions AT xiaomingyuan improvedvirtualsynchronouscontrolforgridconnectedvscsundergridvoltageunbalancedconditions AT yunhuihuang improvedvirtualsynchronouscontrolforgridconnectedvscsundergridvoltageunbalancedconditions |