- Title
- Controlling dc microgrids in communities, buildings and data centers
- Creator
- Kolluri, Ramachandra Rao; Mareels, Iven; de Hoog, Julian
- Date
- 2020
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/190116
- Identifier
- vital:17563
- Identifier
-
https://doi.org/10.1049/iet-stg.2019.0281
- Identifier
- ISSN:2515-2947
- Abstract
- Microgrid technology is poised to transform the electricity industry. In the context of commercial/domestic buildings and data centers, where most loads are native direct current, DC microgrids are in fact a natural choice. Voltage stability and current/power-sharing between sources within a DC microgrid have been studied extensively in recent years. DC voltage droop control is known to have its drawbacks in that current or power-sharing is relatively poor. To eliminate this drawback, some have proposed to add a communication-based consensus control in addition to the primary voltage droop control loop. The current sharing performance is improved, however, the voltage deviation inherent in droop control requires a further, slower control to achieve voltage quality control. To overcome this complication, and reduction in response time, a low latency communication-based control technique that achieves proportional current sharing without significant voltage deviations is proposed in this work. The stability of the proposed control technique is compared to state-of-the-art using eigenvalue and transient analyses. The negative impact of communication delays on proposed control is discussed in detail.
- Publisher
- The Institution of Engineering and Technology
- Relation
- IET Smart Grid Vol. 3, no. 3 (2020), p. 376-384
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright IET
- Subject
- B8120K Distributed power generation; C0310B Computer facilities; C3110B Voltage control; C3340H Control of electric power systems; Communication-based consensus control; Computer centres; Current power-sharing; Current sharing performance; Data centers; DC microgrids; DC voltage droop control; Developing countries; Distributed power generation; Eigenvalues and eigenfunctions; Energy source; Low latency communication-based control technique; Master-less control strategy; Power generation control; Primary voltage droop control loop; Proportional current sharing; Quality control; Renewable energy; Research Article; Voltage control; Voltage deviation; Voltage quality control; Voltage stability; 4008 Electrical engineering
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