Conference item
State of charge based droop control for coordinated power exchange in low voltage DC nanogrids
- Abstract:
- Decentralized battery and solar photovoltaic (PV) system organized in the form of an autonomous low voltage DC nanogrid is a potentially low cost and scalable solution for electrifying rural areas without access to the national grid. Each DC nanogrid can be installed on a single home and used to supply basic lighting, charge mobile phones and power a television set. To provide enough power to meet productive energy uses such as irrigation, the DC nanogrid can be connected to neighboring DC nanogrids to form a cluster and exchange power. However, to achieve a coordinated power exchange in the cluster, new control strategies are required. In this paper, we propose a decentralized droop control method which uses a state of charge of the battery to coordinate the power exchange. The power exchange is achieved by scheduling a terminal voltage set point at each DC nanogrid based on the state of charge of the battery. The performance of the proposed method at achieving the power exchange is analyzed through simulations in Matlab/Simulink. The method does not require inter-unit communication. Therefore, the method is reliable, robust and scalable. Also, the method maintains low amounts of power flow in distribution lines during power exchange to reduce distribution line power losses.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, 562.1KB, Terms of use)
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- Publisher copy:
- 10.1109/PEDS44367.2019.8998955
- Publication website:
- https://ieeexplore.ieee.org/xpl/conhome/8974141/proceeding
Authors
- Publisher:
- IEEE
- Host title:
- 2019 IEEE 13th International Conference on Power Electronics and Drive Systems (PEDS)
- Publication date:
- 2020-02-17
- Acceptance date:
- 2019-02-05
- Event title:
- 13th IEEE International Conference on Power Electronics and Drive Systems
- Event location:
- Toulouse, France
- Event website:
- http://ieee-peds.org/
- Event start date:
- 2019-07-09
- Event end date:
- 2019-07-12
- DOI:
- EISSN:
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2164-5264
- ISSN:
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2164-5256
- ISBN:
- 9781538664995
- Language:
-
English
- Keywords:
- Pubs id:
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1095363
- Local pid:
-
pubs:1095363
- Deposit date:
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2020-03-24
Terms of use
- Copyright holder:
- IEEE
- Copyright date:
- 2019
- Rights statement:
- © 2019 IEEE
- Notes:
- This is the accepted manuscript version of the paper. The final version is available online from IEEE at https://doi.org/10.1109/PEDS44367.2019.8998955
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