Single-stage buck–boost inverter with feedforward control
The off-grid inverter with the inverter side voltage as the feedback parameter has the advantages of a single voltage loop, simple control parameter design, and low cost. But the output voltage accuracy is not enough. A single-stage off-grid inverter with feedforward control is recommended to improv...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S235248472300896X |
| _version_ | 1797388822479110144 |
|---|---|
| author | Liang Cai Zhilei Yao |
| author_facet | Liang Cai Zhilei Yao |
| author_sort | Liang Cai |
| collection | DOAJ |
| description | The off-grid inverter with the inverter side voltage as the feedback parameter has the advantages of a single voltage loop, simple control parameter design, and low cost. But the output voltage accuracy is not enough. A single-stage off-grid inverter with feedforward control is recommended to improve the output voltage accuracy. It has a higher voltage regulation rate compared to the proportional–integral (PI) control and it can track a given AC signal at any frequency compared to the proportional-resonant (PR) control. Bus capacitors can employ thin-film capacitors for improved reliability and higher power density and the voltage stress on power devices can be decreased by controlling the intermediate bus voltage to a non-constant value. The working principle is explained. The design principles of the parameters are provided and the external characteristics and stability of the system are analyzed. A simulation model was built to verify the control strategy for improving voltage accuracy and decreasing voltage stress. |
| first_indexed | 2024-03-08T22:46:24Z |
| format | Article |
| id | doaj.art-8931d3d3b84c4ec3b665160ee66ceb9e |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-08T22:46:24Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-8931d3d3b84c4ec3b665160ee66ceb9e2023-12-17T06:39:05ZengElsevierEnergy Reports2352-48472023-10-019204209Single-stage buck–boost inverter with feedforward controlLiang Cai0Zhilei Yao1Department of Electrical Engineering, Shanghai Maritime University, Shanghai 201306, ChinaCorresponding author.; Department of Electrical Engineering, Shanghai Maritime University, Shanghai 201306, ChinaThe off-grid inverter with the inverter side voltage as the feedback parameter has the advantages of a single voltage loop, simple control parameter design, and low cost. But the output voltage accuracy is not enough. A single-stage off-grid inverter with feedforward control is recommended to improve the output voltage accuracy. It has a higher voltage regulation rate compared to the proportional–integral (PI) control and it can track a given AC signal at any frequency compared to the proportional-resonant (PR) control. Bus capacitors can employ thin-film capacitors for improved reliability and higher power density and the voltage stress on power devices can be decreased by controlling the intermediate bus voltage to a non-constant value. The working principle is explained. The design principles of the parameters are provided and the external characteristics and stability of the system are analyzed. A simulation model was built to verify the control strategy for improving voltage accuracy and decreasing voltage stress.http://www.sciencedirect.com/science/article/pii/S235248472300896XVoltage accuracyOff-gridFeedforward controlSingle-stage |
| spellingShingle | Liang Cai Zhilei Yao Single-stage buck–boost inverter with feedforward control Energy Reports Voltage accuracy Off-grid Feedforward control Single-stage |
| title | Single-stage buck–boost inverter with feedforward control |
| title_full | Single-stage buck–boost inverter with feedforward control |
| title_fullStr | Single-stage buck–boost inverter with feedforward control |
| title_full_unstemmed | Single-stage buck–boost inverter with feedforward control |
| title_short | Single-stage buck–boost inverter with feedforward control |
| title_sort | single stage buck boost inverter with feedforward control |
| topic | Voltage accuracy Off-grid Feedforward control Single-stage |
| url | http://www.sciencedirect.com/science/article/pii/S235248472300896X |
| work_keys_str_mv | AT liangcai singlestagebuckboostinverterwithfeedforwardcontrol AT zhileiyao singlestagebuckboostinverterwithfeedforwardcontrol |