Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator
This article presents a three-phase four-wire inverter to generate voltage sources under wide filter inductance variation. The voltage sources with distortion and unbalance are to emulate grid voltages. The distortion includes voltage sags, voltage swells, and harmonic components, and the unbalance...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Open Journal of Industry Applications |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10054411/ |
| _version_ | 1797741037224984576 |
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| author | Tsai-Fu Wu Yun-Hsiang Chang Chien-Chih Hung Jui-Yang Chiu |
| author_facet | Tsai-Fu Wu Yun-Hsiang Chang Chien-Chih Hung Jui-Yang Chiu |
| author_sort | Tsai-Fu Wu |
| collection | DOAJ |
| description | This article presents a three-phase four-wire inverter to generate voltage sources under wide filter inductance variation. The voltage sources with distortion and unbalance are to emulate grid voltages. The distortion includes voltage sags, voltage swells, and harmonic components, and the unbalance includes voltage and phase-angle differences. With a conventional PI control and direct digital control (DDC) only, the voltage distortion cannot fulfill precisely because of the improper controls. While with the proposed modified DDC (PDDC) and harmonic-angle adjustment algorithm, the soft core saturation can be taken into account and the harmonic voltage distortion can be accurately emulated, respectively. Moreover, the proposed control scheme can achieve a fast transient response. The control law is derived and the inverter with the control to generate grid voltage is described in detail. Simulated and experimental results from the 10-kW prototype have verified the analyses and discussions. |
| first_indexed | 2024-03-12T14:21:06Z |
| format | Article |
| id | doaj.art-0dfbcf2a0a374f3b89491f14c6cb1cf4 |
| institution | Directory Open Access Journal |
| issn | 2644-1241 |
| language | English |
| last_indexed | 2024-03-12T14:21:06Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Industry Applications |
| spelling | doaj.art-0dfbcf2a0a374f3b89491f14c6cb1cf42023-08-18T23:00:42ZengIEEEIEEE Open Journal of Industry Applications2644-12412023-01-01426026810.1109/OJIA.2023.325002710054411Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed GeneratorTsai-Fu Wu0https://orcid.org/0000-0002-6986-6641Yun-Hsiang Chang1https://orcid.org/0000-0001-7158-7425Chien-Chih Hung2https://orcid.org/0009-0000-1389-3379Jui-Yang Chiu3https://orcid.org/0009-0000-1706-2863National Tsing-Hua University Department of Electrical Engineering Hsinchu, Hsinchu, TaiwanNational Tsing-Hua University Department of Electrical Engineering Hsinchu, Hsinchu, TaiwanNational Tsing-Hua University Department of Electrical Engineering Hsinchu, Hsinchu, TaiwanNational Tsing-Hua University Department of Electrical Engineering Hsinchu, Hsinchu, TaiwanThis article presents a three-phase four-wire inverter to generate voltage sources under wide filter inductance variation. The voltage sources with distortion and unbalance are to emulate grid voltages. The distortion includes voltage sags, voltage swells, and harmonic components, and the unbalance includes voltage and phase-angle differences. With a conventional PI control and direct digital control (DDC) only, the voltage distortion cannot fulfill precisely because of the improper controls. While with the proposed modified DDC (PDDC) and harmonic-angle adjustment algorithm, the soft core saturation can be taken into account and the harmonic voltage distortion can be accurately emulated, respectively. Moreover, the proposed control scheme can achieve a fast transient response. The control law is derived and the inverter with the control to generate grid voltage is described in detail. Simulated and experimental results from the 10-kW prototype have verified the analyses and discussions.https://ieeexplore.ieee.org/document/10054411/Direct digital control (DDC)grid voltage emulatormodified DDCPI controlthree-phase four-wire (3Φ4W) inverter |
| spellingShingle | Tsai-Fu Wu Yun-Hsiang Chang Chien-Chih Hung Jui-Yang Chiu Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator IEEE Open Journal of Industry Applications Direct digital control (DDC) grid voltage emulator modified DDC PI control three-phase four-wire (3Φ4W) inverter |
| title | Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator |
| title_full | Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator |
| title_fullStr | Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator |
| title_full_unstemmed | Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator |
| title_short | Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator |
| title_sort | three phase four wire inverter for grid emulator under wide inductance variation to evaluate the performance of distributed generator |
| topic | Direct digital control (DDC) grid voltage emulator modified DDC PI control three-phase four-wire (3Φ4W) inverter |
| url | https://ieeexplore.ieee.org/document/10054411/ |
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