NDLI: Pulsed power load effect mitigation in DC shipboard microgrids: a constrained model predictive approach

Content Provider	IET Digital Library
Author	Vafamand, Navid Mardani, Mohammad Mehdi Khooban, Mohammad Hassan Blaabjerg, Frede Boudjadar, Jalil
Abstract	This paper proposes a novel model predictive controller to minimise the effect of unknown pulsed loads on the DC microgrid (MG) side of shipboards. It is assumed that the level of the pulsed power loads (PPLs) is not determined in prior for which the authors propose a novel non-linear power observer. By employing the so-called freezing technique, a novel model predictive scheme is utilised to optimally stabilise the overall DC shipboard MG. Furthermore, different constraints on the current of the DC source and the energy storage system (ESS) are considered in the predictive controller to make it more realistic and practical. Compared to the exiting results, the proposed approach can optimally design the injecting current of the ESS so that the practical and physical constraints of the DC MG are also satisfied, which improves the effectiveness and robustness of the proposed controller. To show the merits of the proposed approach, it is tested on a DC MG that feeds one PPL. Real-time model-in-the-loop (MiL) results show the performance improvements in the transient and steady-state obtained by the proposed control method compared to the state-of-the-art methods.
Starting Page	2155
Ending Page	2160
Page Count	6
ISSN	17554535
Volume Number	12
e-ISSN	17554543
Issue Number	Issue 9, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/12/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.6159
Journal	IET Power Electronics
Publisher Date	2019-02-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Constrained Model Predictive Approach Control Method DC MG DC Shipboard MG DC Shipboard Microgrid DC Source Different Constraint Distributed Power Generation Energy Storage System ESS Freezing Technique Injecting Current Marine Power System Novel Model Predictive Controller Novel Model Predictive Scheme Novel Nonlinear Power Observer Optimal Control Optimisation Optimisation Technique Physical Constraint Power Converter Practical Constraint Predictive Control Pulsed Power Load Pulsed Power Load Effect Mitigation Real-time Model-in-the-loop Result Robustness Unknown Pulsed Load
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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