Abstract
The dynamic stability problems caused by the broadband interfering characteristics of power electronics grid-connected systems have received wide attention due to the large-scale installation of renewable energy and intelligent distribution equipment. Measuring the port impedance of grid-connected converters and determining the system stability by using Nyquist stability criterion is the most commonly used method in broadband stability studies. This paper presents an impedance measurement method by generating series disturbance voltage, where the broadband disturbance is generated by means of model predictive control (MPC) with a frequency domain segmentation model. A comparison with theoretical calculations shows that the method enables accurate measurement of the port impedance of grid-connected converters over broadband frequency range, providing a basis for system stability analysis.
| Original language | English |
|---|---|
| Title of host publication | ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia |
| Subtitle of host publication | Green World with Power Electronics |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1718-1724 |
| Number of pages | 7 |
| ISBN (Electronic) | 9788957083505 |
| DOIs | |
| State | Published - 2023 |
| Event | 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia - Jeju, Korea, Republic of Duration: 22 May 2023 → 25 May 2023 |
Publication series
| Name | ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics |
|---|
Conference
| Conference | 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Jeju |
| Period | 22/05/23 → 25/05/23 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Broadband disturbance generator
- grid-connected converters
- impedance measurement
- model predictive control (MPC)
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