DSP-Based Sub-Switching-Period Current-Limiting Control for Grid-Tied Inverter under Grid Faults
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918275379625984 |
|---|---|
| author | Park, Jaeyeon Lee, Jiyu Maeng, Junyeol Cui, Shenghui |
| author_facet | Park, Jaeyeon Lee, Jiyu Maeng, Junyeol Cui, Shenghui |
| contents | This paper presents a sub-switching period current-limiting control for a grid-tied inverter to prevent transient overcurrents during grid faults and enable seamless fault ride-through (FRT). Sudden grid-voltage disturbances, such as voltage sags or phase jumps, can induce large transient currents within a switching period, particularly at low switching frequencies. Upon disturbance detection, the proposed method immediately modifies the pulse-width modulation carrier, enabling continuous regulation of the inverter output current within a time much shorter than a switching period without interrupting current flow. The proposed method can be implemented on commonly used digital signal processors without requiring specialized analog or digital circuits or high-speed computing devices. Experimental results from a 2-level, 3-phase inverter switching at 3.6 kHz validate the effectiveness of the proposed method under symmetric and asymmetric voltage sags and phase jumps. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_03638 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | DSP-Based Sub-Switching-Period Current-Limiting Control for Grid-Tied Inverter under Grid Faults Park, Jaeyeon Lee, Jiyu Maeng, Junyeol Cui, Shenghui Systems and Control This paper presents a sub-switching period current-limiting control for a grid-tied inverter to prevent transient overcurrents during grid faults and enable seamless fault ride-through (FRT). Sudden grid-voltage disturbances, such as voltage sags or phase jumps, can induce large transient currents within a switching period, particularly at low switching frequencies. Upon disturbance detection, the proposed method immediately modifies the pulse-width modulation carrier, enabling continuous regulation of the inverter output current within a time much shorter than a switching period without interrupting current flow. The proposed method can be implemented on commonly used digital signal processors without requiring specialized analog or digital circuits or high-speed computing devices. Experimental results from a 2-level, 3-phase inverter switching at 3.6 kHz validate the effectiveness of the proposed method under symmetric and asymmetric voltage sags and phase jumps. |
| title | DSP-Based Sub-Switching-Period Current-Limiting Control for Grid-Tied Inverter under Grid Faults |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2601.03638 |