NDLI: Generalised approach for predictive control with common-mode voltage mitigation in multilevel diode-clamped converters

Content Provider	IET Digital Library
Author	Yaramasu, Venkata Wu, Bin Rivera, Marco Narimani, Mehdi Kouro, Samir Rodriguez, Jose
Abstract	This study proposes a generalised approach based on model predictive strategy for the current control, dc-link capacitor voltages balancing, switching frequency reduction and common-mode voltage mitigation in multilevel diode-clamped converters. A generalised discrete-time model of the converters is presented, where all the control objectives are formulated in terms of the switching states. The control goals are expressed as a cost function, and with the help of suitable weighting factors these goals are met simultaneously. The cost function minimisation is used as criteria for choosing the best switching state which would be applied to the converter during next sampling interval. The real-time digital control issues such as computational burden and delay compensation are also discussed. The feasibility of the proposed method is verified by simulations in three- to six-level converters, and by experiments in three- and four-level converters.
Starting Page	1440
Ending Page	1450
Page Count	11
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 8, Aug (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0775
Journal	IET Power Electronics
Publisher Date	2015-04-23
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Common-mode Voltage Mitigation Compensation Control of Electric Power System Cost Function Minimisation Current Control DC-link Capacitor Voltage Balancing Delay Compensation Digital Control Diode Discrete Control System Discrete Time System Electric Current Control Frequency Control Generalised Discrete-time Model Minimisation Model Predictive Control Multilevel Diode-clamped Converter Optimal Control Optimisation Technique Power Converter Power Supplies to Apparatus Predictive Control Real-time Digital Control Switching Converter Switching Frequency Reduction Voltage Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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