Coupling effect of active and reactive power controls on synchronous stability of VSGs
The virtual synchronous generator (VSG) is emerging as a promising candidate for replacing synchronous generators in more-electronics power systems. Its fundamental objective lies in the regulation of active and reactive power for voltage forming and frequency control. To achieve tight power re...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/93528 http://hdl.handle.net/10220/50326 |
| _version_ | 1826113662917541888 |
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| author | Deng, Han Fang, Jingyang Tang, Yi Debusschere, Vincent |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Deng, Han Fang, Jingyang Tang, Yi Debusschere, Vincent |
| author_sort | Deng, Han |
| collection | NTU |
| description | The virtual synchronous generator (VSG) is
emerging as a promising candidate for replacing synchronous
generators in more-electronics power systems. Its fundamental
objective lies in the regulation of active and reactive power for
voltage forming and frequency control. To achieve tight power
regulation, VSGs usually have closed-loop active power and
reactive power controls. However, this paper reveals that the
coupling effect between the active power control and the
reactive power control will greatly change the synchronous
stability of a VSG. Specifically, the maximum transferred active
power and its associated power angle are reduced because of the
coupling effect. To quantify this effect, a small-signal model of a
grid-tied VSG is constructed, based on which the critical
operation point is further analyzed. The power angle curve of
VSGs with fixed reactive power output is compared with that of
VSGs with constant output voltage amplitude. Finally, the effect
of reactive power droop control in increasing the stable
operation region is investigated in this paper. |
| first_indexed | 2024-10-01T03:26:54Z |
| format | Conference Paper |
| id | ntu-10356/93528 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:26:54Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/935282021-01-07T03:33:40Z Coupling effect of active and reactive power controls on synchronous stability of VSGs Deng, Han Fang, Jingyang Tang, Yi Debusschere, Vincent School of Electrical and Electronic Engineering Interdisciplinary Graduate School (IGS) The 4th IEEE International Future Energy Electronics Conference (IFEEC 2019) Energy Research Institute @ NTU (ERI@N) Virtual Synchronous Generator Power Regulation Engineering::Electrical and electronic engineering::Power electronics The virtual synchronous generator (VSG) is emerging as a promising candidate for replacing synchronous generators in more-electronics power systems. Its fundamental objective lies in the regulation of active and reactive power for voltage forming and frequency control. To achieve tight power regulation, VSGs usually have closed-loop active power and reactive power controls. However, this paper reveals that the coupling effect between the active power control and the reactive power control will greatly change the synchronous stability of a VSG. Specifically, the maximum transferred active power and its associated power angle are reduced because of the coupling effect. To quantify this effect, a small-signal model of a grid-tied VSG is constructed, based on which the critical operation point is further analyzed. The power angle curve of VSGs with fixed reactive power output is compared with that of VSGs with constant output voltage amplitude. Finally, the effect of reactive power droop control in increasing the stable operation region is investigated in this paper. Accepted version 2019-11-05T01:10:09Z 2019-12-06T18:40:55Z 2019-11-05T01:10:09Z 2019-12-06T18:40:55Z 2019 Conference Paper Deng, H., Fang, J., Tang, Y., & Debusschere, V. (2019). Coupling effect of active and reactive power controls on synchronous stability of VSGs. The 4th IEEE International Future Energy Electronics Conference (IFEEC 2019). https://hdl.handle.net/10356/93528 http://hdl.handle.net/10220/50326 en © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. 6 p. application/pdf |
| spellingShingle | Virtual Synchronous Generator Power Regulation Engineering::Electrical and electronic engineering::Power electronics Deng, Han Fang, Jingyang Tang, Yi Debusschere, Vincent Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title | Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title_full | Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title_fullStr | Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title_full_unstemmed | Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title_short | Coupling effect of active and reactive power controls on synchronous stability of VSGs |
| title_sort | coupling effect of active and reactive power controls on synchronous stability of vsgs |
| topic | Virtual Synchronous Generator Power Regulation Engineering::Electrical and electronic engineering::Power electronics |
| url | https://hdl.handle.net/10356/93528 http://hdl.handle.net/10220/50326 |
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