Abstract
Controlling isolated DC microgrids (MGs) is challenging due to fluctuating renewable energy and load demands. Conventional methods often fail to achieve desired performance, including customizable settling times and predefined transient/steady-state behavior. This paper introduces a novel distributed control method using a predefined-time prescribed performance function (PTPPF) to optimize power dispatch and guarantee user-defined performance in islanded DC MGs. The controller optimizes cost and regulates voltage within a tunable, predefined settling time while respecting state constraints. It ensures economical operation by synchronizing incremental costs (ICs) of distributed generation (DGs) and stabilizes the MG's average voltage by balancing power supply and demand. The PTPPF significantly improves transient and steady-state performance, ensuring errors remain within specified bounds and time constraints. Simulation results, along with a comparative study, validate the effectiveness of the proposed scheme.
| Original language | English |
|---|---|
| Title of host publication | 2025 IEEE Industry Applications Society Annual Meeting, IAS 2025 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781665457767 |
| DOIs | |
| State | Published - 2025 |
Publication series
| Name | Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) |
|---|---|
| ISSN (Print) | 0197-2618 |
Bibliographical note
Publisher Copyright:© 2025 IEEE.
Keywords
- Islanded DC Microgrid
- Optimal dispatch
- Prescribed performance function
- Prescribed-time convergence
- Proportional control
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
