Model Predictive Control for DC-DC Boost Converters with Reduced-Prediction Horizon and Constant Switching Frequency

Cheng, L; Acuna, P; Aguilera, RP; Jiang, J; Wei, S; Fletcher, JE; Lu, DDC

Model Predictive Control for DC-DC Boost Converters with Reduced-Prediction Horizon and Constant Switching Frequency

Cheng, L Acuna, P

Aguilera, RP

Jiang, J Wei, S Fletcher, JE Lu, DDC

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Electronics, 2018, 33 (10), pp. 9064 - 9075
Issue Date:: 2018-10-01

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Field	Value	Language
dc.contributor.author	Cheng, L	en_US
dc.contributor.author	Acuna, P https://orcid.org/0000-0001-7143-8593	en_US
dc.contributor.author	Aguilera, RP https://orcid.org/0000-0003-4166-8341	en_US
dc.contributor.author	Jiang, J	en_US
dc.contributor.author	Wei, S	en_US
dc.contributor.author	Fletcher, JE	en_US
dc.contributor.author	Lu, DDC https://orcid.org/0000-0003-2145-0580	en_US
dc.date.issued	2018-10-01	en_US
dc.identifier.citation	IEEE Transactions on Power Electronics, 2018, 33 (10), pp. 9064 - 9075	en_US
dc.identifier.issn	0885-8993	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125128
dc.description.abstract	© 1986-2012 IEEE. The implementation of multistep direct model predictive control (MPC) for DC-DC boost converters overcomes the well-known issue of nonminimum phase behavior. However, it can lead to a high computational burden depending on the prediction horizon length. In this paper, a simple and computationally efficient MPC method for DC-DC boost converters is proposed. The key novelty of the presented control strategy lies in the way dynamic references are handled. The control strategy is capable of providing suitable references for the inductor current and the output voltage, without requiring additional control loops. Moreover, this reference design allows the predictive controller to be implemented with a single-step prediction horizon. Thus, a significant reduction in the required real-time calculations executed in the control hardware is achieved. To obtain constant switching frequency, the power switch commutation instants within a sampling period are considered as control inputs. Therefore, the predictive controller is formulated as a continuous control set MPC. Additionally, the proposed formulation is able to deal with different operation modes of the converter without changing the controller structure. Finally, an observer is used to dynamically modify the reference to provide robustness to system parameter uncertainties. Simulation and experimental results show an accurate tracking of dynamic inductor current and output voltage references, while respecting the restrictions on maximum inductor current levels of the converter.	en_US
dc.relation.ispartof	IEEE Transactions on Power Electronics	en_US
dc.relation.isbasedon	10.1109/TPEL.2017.2785255	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	Model Predictive Control for DC-DC Boost Converters with Reduced-Prediction Horizon and Constant Switching Frequency	en_US
dc.type	Journal Article
utslib.citation.volume	10	en_US
utslib.citation.volume	33	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.issue	10	en_US
pubs.publication-status	Published	en_US
pubs.volume	33	en_US

Abstract:

© 1986-2012 IEEE. The implementation of multistep direct model predictive control (MPC) for DC-DC boost converters overcomes the well-known issue of nonminimum phase behavior. However, it can lead to a high computational burden depending on the prediction horizon length. In this paper, a simple and computationally efficient MPC method for DC-DC boost converters is proposed. The key novelty of the presented control strategy lies in the way dynamic references are handled. The control strategy is capable of providing suitable references for the inductor current and the output voltage, without requiring additional control loops. Moreover, this reference design allows the predictive controller to be implemented with a single-step prediction horizon. Thus, a significant reduction in the required real-time calculations executed in the control hardware is achieved. To obtain constant switching frequency, the power switch commutation instants within a sampling period are considered as control inputs. Therefore, the predictive controller is formulated as a continuous control set MPC. Additionally, the proposed formulation is able to deal with different operation modes of the converter without changing the controller structure. Finally, an observer is used to dynamically modify the reference to provide robustness to system parameter uncertainties. Simulation and experimental results show an accurate tracking of dynamic inductor current and output voltage references, while respecting the restrictions on maximum inductor current levels of the converter.

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http://hdl.handle.net/10453/125128