Abstract
In this paper, the operational choices in distributed secondary control are examined, and their impacts on grid-forming (GFM) inverters and grid operation are investigated. In particular, the effects of feedback voltage choices, either average voltage feedback (AVF) or terminal voltage feedback (TVF), are studied with respect to reactive power sharing, voltage regulation, and grid-forming operation during black start. The secondary control used is a subgradient-based distributed cooperative control, and it provides the voltage, angle, and frequency references to the GFM inverters and their primary tracking controls. The overall control architecture employs multi-rate sampling such that the secondary control is slower than the primary control. The operational choices and their control performance are illustrated using a four-GFM-inverter microgrid in MATLAB/SIMULINK. The results show the effectiveness of the secondary controller, and several conclusions are drawn on the voltage feedback signals as the design choices.
| Original language | English |
|---|---|
| Title of host publication | 2022 North American Power Symposium, NAPS 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781665499217 |
| DOIs | |
| State | Published - 2022 |
| Externally published | Yes |
| Event | 2022 North American Power Symposium, NAPS 2022 - Salt Lake City, United States Duration: 9 Oct 2022 → 11 Oct 2022 |
Publication series
| Name | 2022 North American Power Symposium, NAPS 2022 |
|---|
Conference
| Conference | 2022 North American Power Symposium, NAPS 2022 |
|---|---|
| Country/Territory | United States |
| City | Salt Lake City |
| Period | 9/10/22 → 11/10/22 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Cooperative Control
- Grid Forming Inverters
- Microgrid
- Secondary Control
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