TY - JOUR
T1 - Modified Modulated Model Predictive Control Strategy for a Grid-Connected Converter
AU - Xiao, Dan
AU - Alam, Kazi Saiful
AU - Norambuena, Margarita
AU - Rahman, Muhammed Fazlur
AU - Rodriguez, Jose
N1 - Funding Information:
This work was supported in part by the CONICYT/FONDECYT Research Project under Grant 11180233 and in part by the CONICYT through the Basal Project FB0008 Advanced Center for Electrical and Electronic Engineering.
Publisher Copyright:
© 1982-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - This article proposes a modified modulated model predictive control (M3PC) for a grid-connected converter, which features enhanced steady-state and transient performance, low complexity, and capability of multiobjective optimization. The advantages of fast dynamics and inherent overmodulation capability of finite control set model predictive control are preserved while a constant switching-frequency and improved steady-state performance are achieved. High tracking error and distortion caused by the limitation of conventional modulated model predictive control (M2PC) optimization near the hexagonal limit of voltage vectors and the sector boundaries are addressed with the proposed M3PC scheme. Experimental results verify that reduced tracking errors and lower total-harmonic distortion in grid current are achieved by the proposed method compared to the conventional M2PC scheme. It is also confirmed that the capability of overmodulation operation in the proposed method enhances transient performance and dc-bus utilization.
AB - This article proposes a modified modulated model predictive control (M3PC) for a grid-connected converter, which features enhanced steady-state and transient performance, low complexity, and capability of multiobjective optimization. The advantages of fast dynamics and inherent overmodulation capability of finite control set model predictive control are preserved while a constant switching-frequency and improved steady-state performance are achieved. High tracking error and distortion caused by the limitation of conventional modulated model predictive control (M2PC) optimization near the hexagonal limit of voltage vectors and the sector boundaries are addressed with the proposed M3PC scheme. Experimental results verify that reduced tracking errors and lower total-harmonic distortion in grid current are achieved by the proposed method compared to the conventional M2PC scheme. It is also confirmed that the capability of overmodulation operation in the proposed method enhances transient performance and dc-bus utilization.
KW - Constant switching frequency
KW - grid-connected converter
KW - overmodulation
UR - http://www.scopus.com/inward/record.url?scp=85095119793&partnerID=8YFLogxK
U2 - 10.1109/TIE.2020.2965457
DO - 10.1109/TIE.2020.2965457
M3 - Article
AN - SCOPUS:85095119793
VL - 68
SP - 575
EP - 585
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
SN - 0278-0046
IS - 1
M1 - 8960539
ER -