Abstract
This paper proposes a fully distributed coordination control in islanded DC microgrids in order to minimize the generation cost. It consists of tertiary and secondary control levels to optimize load sharing between distributed generations (DGs). A normalized running cost is proposed as a comprehensive method for solving economic dispatch problem (EDP) of DC microgrids. Through dynamic consensus protocol, tertiary control level equalizes DGs normalized costs to adjust the output power of each DG at the optimum point while satisfying the inequality constraint. Secondary control level regulates the average voltage across the microgrid. Therefore, the generation-demand equality constraint can be well maintained. Simulation results verify the feasibility of the proposed controller with different operating conditions and prove its resiliency against communication link loss, and DGs failures.
| Original language | English |
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| Title of host publication | 2016 18th International Middle-East Power Systems Conference, MEPCON 2016 - Proceedings |
| Editors | Omar H. Abdalla |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 854-859 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781467390637 |
| DOIs | |
| State | Published - 30 Jan 2017 |
| Externally published | Yes |
Publication series
| Name | 2016 18th International Middle-East Power Systems Conference, MEPCON 2016 - Proceedings |
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Bibliographical note
Publisher Copyright:© 2016 IEEE.
Keywords
- DC microgrids
- Distributed control
- Dynamic consensus algorithm
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Control and Optimization