Abstract
This paper develops a new fully distributed coordination control scheme for optimally reducing the total generation cost (TGC) in DC microgrids that includes different types of dispatchable distributed generations (DGs). It presents the normalized running cost as a comprehensive economical dispatching problem (EDP) solving method to overcome the drawbacks of the conventional EDP solving techniques. The proposed controller optimizes load sharing between DGs and regulates microgrid's average voltage using tertiary and secondary control levels. Through local voting protocol, the tertiary controller equalizes DGs normalized costs to schedule the output power of each DG at the optimum point while satisfying inequality constraint. Furthermore, generation-demand equality constraint could be realized by secondary control level through regulating the average voltage across the microgrid. Feasibility of the proposed controller in case of load variations, plug and play capability, and communication failures are verified by the experimental studies in a lab-scale DC microgrid.
| Original language | English |
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| Title of host publication | 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2816-2821 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781509053667 |
| DOIs | |
| State | Published - 17 May 2017 |
| Externally published | Yes |
| Event | 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States Duration: 26 Mar 2017 → 30 Mar 2017 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
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Conference
| Conference | 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 |
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| Country/Territory | United States |
| City | Tampa |
| Period | 26/03/17 → 30/03/17 |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
Keywords
- DC microgrids
- Distributed control
- Economical dispatch problem
ASJC Scopus subject areas
- Electrical and Electronic Engineering