Robust optimal power management system for a hybrid AC/DC micro-grid

Hosseinzadeh, Mehdi and Salmasi, Farzad R. (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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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
Subjects: Construction and engineering
Depositing User: Farzad Rajaei Salmasi
Date Deposited: 17 Jun 2016 09:22
Last Modified: 30 Aug 2016 10:56

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