Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters

An accurate definition of a system model significantly affects the performance of model-based control strategies, for example, model predictive control (MPC). In this paper, a model-free predictive control strategy is presented to mitigate all ramifications of the model’s uncertainties and parameter...

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Main Authors: Sanaz Sabzevari, Rasool Heydari, Maryam Mohiti, Mehdi Savaghebi, Jose Rodriguez
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/8/2325
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author Sanaz Sabzevari
Rasool Heydari
Maryam Mohiti
Mehdi Savaghebi
Jose Rodriguez
author_facet Sanaz Sabzevari
Rasool Heydari
Maryam Mohiti
Mehdi Savaghebi
Jose Rodriguez
author_sort Sanaz Sabzevari
collection DOAJ
description An accurate definition of a system model significantly affects the performance of model-based control strategies, for example, model predictive control (MPC). In this paper, a model-free predictive control strategy is presented to mitigate all ramifications of the model’s uncertainties and parameter mismatch between the plant and controller for the control of power electronic converters in applications such as microgrids. A specific recurrent neural network structure called state-space neural network (ssNN) is proposed as a model-free current predictive control for a three-phase power converter. In this approach, NN weights are updated through particle swarm optimization (PSO) for faster convergence. After the training process, the proposed ssNN-PSO combined with the predictive controller using a performance criterion overcomes parameter variations in the physical system. A comparison has been carried out between the conventional MPC and the proposed model-free predictive control in different scenarios. The simulation results of the proposed control scheme exhibit more robustness compared to the conventional finite-control-set MPC.
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spelling doaj.art-c7249e179eeb40b2a658a30e3ef2976d2023-11-21T16:20:05ZengMDPI AGEnergies1996-10732021-04-01148232510.3390/en14082325Model-Free Neural Network-Based Predictive Control for Robust Operation of Power ConvertersSanaz Sabzevari0Rasool Heydari1Maryam Mohiti2Mehdi Savaghebi3Jose Rodriguez4Department of Electrical and Computer Engineering, Semnan University, Semnan 35131-19111, IranEnergy Technology Department, Aalborg University of Denmark, 9220 Aalborg, DenmarkDepartment of Electrical Engineering, University of Yazd, Yazd 89158-18411, IranDepartment of Mechanical and Electrical Engineering, University of Southern Denmark, 5230 Odense, DenmarkDepartment of Engineering Science, Universidad Andres Bello, 7500971 Santiago, ChileAn accurate definition of a system model significantly affects the performance of model-based control strategies, for example, model predictive control (MPC). In this paper, a model-free predictive control strategy is presented to mitigate all ramifications of the model’s uncertainties and parameter mismatch between the plant and controller for the control of power electronic converters in applications such as microgrids. A specific recurrent neural network structure called state-space neural network (ssNN) is proposed as a model-free current predictive control for a three-phase power converter. In this approach, NN weights are updated through particle swarm optimization (PSO) for faster convergence. After the training process, the proposed ssNN-PSO combined with the predictive controller using a performance criterion overcomes parameter variations in the physical system. A comparison has been carried out between the conventional MPC and the proposed model-free predictive control in different scenarios. The simulation results of the proposed control scheme exhibit more robustness compared to the conventional finite-control-set MPC.https://www.mdpi.com/1996-1073/14/8/2325model-free predictive controlmodel predictive control (MPC)power converterstate-space neural network with particle swarm optimization (ssNN-PSO)identificationrobust performance
spellingShingle Sanaz Sabzevari
Rasool Heydari
Maryam Mohiti
Mehdi Savaghebi
Jose Rodriguez
Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
Energies
model-free predictive control
model predictive control (MPC)
power converter
state-space neural network with particle swarm optimization (ssNN-PSO)
identification
robust performance
title Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
title_full Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
title_fullStr Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
title_full_unstemmed Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
title_short Model-Free Neural Network-Based Predictive Control for Robust Operation of Power Converters
title_sort model free neural network based predictive control for robust operation of power converters
topic model-free predictive control
model predictive control (MPC)
power converter
state-space neural network with particle swarm optimization (ssNN-PSO)
identification
robust performance
url https://www.mdpi.com/1996-1073/14/8/2325
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