1. Autonomous power balance in hybrid AC/DC microgrids.
- Author
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Nabatirad, Mohammadreza, Razzaghi, Reza, and Bahrani, Behrooz
- Subjects
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HYBRID power , *MICROGRIDS , *DISTRIBUTED power generation , *ENERGY management - Abstract
A control paradigm is proposed in this paper for decentralized power balance in hybrid AC/DC Microgrids (MGs). In this technique, the AC and DC sub-grids can transact energy from or towards the other side based on their loading conditions. Hybrid MGs use an interlink converter (ILC) as a back-to-back bi-directional converter at the Point of Common Coupling (PCC) between the sub-grids. The main duty of the ILC unit is to maintain the loading balance between the sub-grids. For this purpose, a superimposed AC voltage on the network's nominal DC voltage is utilized in the DC sub-grid. Also, the AC sub-grid is equipped with the conventional f / P droop control. The frequency of the superimposed AC voltage in the DC sub-grid and the AC network frequency in the AC sub-grid are used for estimating the loading percentage of each side. As a result, the ILC unit acts as a load for one side and concurrently as a source for the other side. The ILC controller adjusts the participation of this unit in a fully decentralized manner. Simulation studies via PLECS test the efficacy of the suggested control system. • Decentralized control strategy for Hybrid AC/DC Microgrids. • Simultaneous accurate load sharing and voltage regulation. • Energy management and balance id Islanded AC/DC Microgrids. • Plug-and-Play (PnP) feature for Distributed Generation (DG) units in DC Microgrids. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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