Hosseinzadeh, Mehdi and Salmasi, Farzad R. ORCID: https://orcid.org/0000-0002-8632-4238 (2015) Robust optimal power management system for a hybrid AC/DC micro-grid. IEEE Transactions on Sustainable Energy, 6 (3). pp. 675-687. ISSN 1949-3029

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Abstract

Hybrid ac/dc micro-grid is a new concept decoupling dc sources with dc loads and ac sources with ac loads, while power is exchanged between both sides using a bidirectional converter/inverter. This necessitates a supervisory control system to split power between its different resources, which has sparked attention on the development of power management systems (PMSs). In this paper, a robust optimal PMS (ROPMS) is developed for a hybrid ac/dc micro-grid, where the power flow in the micro-grid is supervised based on solving an optimization problem. Satisfying demanded power with maximum utilization of renewable resources, minimum usage of fuel-based generator, extending batteries lifetime, and limited utilization of the main power converter between the ac and dc micro-grids are important factors that are considered in this approach. Uncertainties in the resources output power and generation forecast errors, along with static and dynamic constraints of the resources, are taken into account. Furthermore, since uncertainties in the resources output power may result in fluctuations in the dc bus voltage, a two-level controller is used to regulate charge/discharge power of the battery banks. Effectiveness of the proposed supervisory system is evaluated through extensive simulation runs based on dynamical models of the power resources.

Item Type:	Article
Identifier:	10.1109/TSTE.2015.2405935
Keywords:	Batteries, Hybrid power systems, Discharges (electric), Power markets, Robustness, Wind turbines
Subjects:	Construction and engineering
Depositing User:	Farzad Rajaei Salmasi
Date Deposited:	17 Jun 2016 09:22
Last Modified:	06 Feb 2024 15:45
URI:	https://repository.uwl.ac.uk/id/eprint/2573

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