Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability
Distributed virtual inertia provided by grid-friendly power converters is emerging as an effective way for inertia enhancement and frequency regulation improvement in more-electronics power systems. However, most existing methods attempt to generate distributed virtual inertia by grid-following powe...
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sg-ntu-dr.10356-921942021-01-08T02:50:17Z Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability Deng, Han Fang, Jingyang Yu, Jiale Tang, Yi Debusschere, Vincent School of Electrical and Electronic Engineering Interdisciplinary Graduate School (IGS) IEEE Energy Conversion Congress and Exposition (ECCE) Energy Research Institute @ NTU (ERI@N) Virtual Inertia Grid-forming Power Converters Engineering::Electrical and electronic engineering Distributed virtual inertia provided by grid-friendly power converters is emerging as an effective way for inertia enhancement and frequency regulation improvement in more-electronics power systems. However, most existing methods attempt to generate distributed virtual inertia by grid-following power converters. As compared with conventional grid-feeding power converters, grid-forming power converters, i.e. the ones controlled as ac voltage sources, are more promising owing to their capabilities of voltage and frequency regulation. As such, this paper explores the possibility of inertia emulation by grid-forming power converters. Through the stability analysis, it is revealed that the instability issue is associated with typical virtual inertia control. Further, a lead-lag compensator is introduced to resolve this issue. To better stabilize the system, a detailed small signal model is derived, and the sensitivity analysis is applied to study the critical poles. Accepted version 2019-08-14T05:23:51Z 2019-12-06T18:19:01Z 2019-08-14T05:23:51Z 2019-12-06T18:19:01Z 2019 Conference Paper Deng, H., Fang, J., Yu, J., Tang, Y., & Debusschere, V. (2019). Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability. IEEE Energy Conversion Congress and Exposition (ECCE). https://hdl.handle.net/10356/92194 http://hdl.handle.net/10220/49623 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. 7 p. application/pdf |
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Virtual Inertia Grid-forming Power Converters Engineering::Electrical and electronic engineering Deng, Han Fang, Jingyang Yu, Jiale Tang, Yi Debusschere, Vincent Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
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Distributed virtual inertia provided by grid-friendly power converters is emerging as an effective way for inertia enhancement and frequency regulation improvement in more-electronics power systems. However, most existing methods attempt to generate distributed virtual inertia by grid-following power converters. As compared with conventional grid-feeding power converters, grid-forming power converters, i.e. the ones controlled as ac voltage sources, are more promising owing to their capabilities of voltage and frequency regulation. As such, this paper explores the possibility of inertia emulation by grid-forming power converters. Through the stability analysis, it is revealed that the instability issue is associated with typical virtual inertia control. Further, a lead-lag compensator is introduced to resolve this issue. To better stabilize the system, a detailed small signal model is derived, and the sensitivity analysis is applied to study the critical poles. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Deng, Han Fang, Jingyang Yu, Jiale Tang, Yi Debusschere, Vincent |
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Conference or Workshop Item |
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Deng, Han Fang, Jingyang Yu, Jiale Tang, Yi Debusschere, Vincent |
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Deng, Han |
title |
Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
title_short |
Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
title_full |
Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
title_fullStr |
Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
title_full_unstemmed |
Small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
title_sort |
small-signal modeling, stability analysis, and controller design of grid-friendly power converters with virtual inertia and grid-forming capability |
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2019 |
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https://hdl.handle.net/10356/92194 http://hdl.handle.net/10220/49623 |
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