A Multi-Layer Sequential Model Predictive Control of Three-Phase Two-Leg Seven-Level T-Type Nested Neutral Point Clamped Converter Without Weighting Factors

In this paper, a triple-layer sequential model predictive control (SMPC) approach without weighting factors is proposed for a three-phase two-leg 7-level T-type nested neutral point clamped (T-NNPC) converter. The main objectives of this paper are to eliminate the selection of weighting factors and enhance the reliability of system in the control process. In the proposed design, three cost functions are formulated in a cascaded way to avoid the weighting factors tuning while not compromising the computational complexity. Furthermore, the three-phase two-leg 7-level T-NNPC converter is investigated to improve the fault-tolerance ability in case of a faulty leg condition. Finally, the effectiveness of the control methodology for the three-phase two-leg 7-level T-NNPC converter is validated by comparative simulation studies.

[1]  Bin Wu,et al.  Recent Advances and Industrial Applications of Multilevel Converters , 2010, IEEE Transactions on Industrial Electronics.

[2]  Marian P. Kazmierkowski,et al.  Model Predictive Control for Three-Level Four-Leg Flying Capacitor Converter Operating as Shunt Active Power Filter , 2016, IEEE Transactions on Industrial Electronics.

[3]  Bin Wu,et al.  Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives , 2007, IEEE Transactions on Industrial Electronics.

[4]  Bin Wu,et al.  A Novel Switching Sequence Design for Five-Level NPC/H-Bridge Inverters With Improved Output Voltage Spectrum and Minimized Device Switching Frequency , 2006, IEEE Transactions on Power Electronics.

[5]  Ahoora Bahrami,et al.  A Sinusoidal Pulsewidth Modulation (SPWM) Technique for Capacitor Voltage Balancing of a Nested T-Type Four-Level Inverter , 2019, IEEE Transactions on Power Electronics.

[6]  Xibo Yuan,et al.  Design and Experimental Evaluation of Fast Model Predictive Control for Modular Multilevel Converters , 2016, IEEE Transactions on Industrial Electronics.

[7]  Jun Liang,et al.  Modified Phase-Shifted PWM Control for Flying Capacitor Multilevel Converters , 2007, IEEE Transactions on Power Electronics.

[8]  Mehdi Narimani,et al.  Capacitor Voltage Balancing and Current Control of a Five-Level Nested Neutral-Point-Clamped Converter , 2018, IEEE Transactions on Power Electronics.

[9]  Rosario Miceli,et al.  Comprehensive Modeling and Experimental Testing of Fault Detection and Management of a Nonredundant Fault-Tolerant VSI , 2015, IEEE Transactions on Industrial Electronics.

[10]  Ralph Kennel,et al.  A Very Simple Strategy for High-Quality Performance of AC Machines Using Model Predictive Control , 2019, IEEE Transactions on Power Electronics.

[11]  Bin Wu,et al.  A New Power Conversion System for Megawatt PMSG Wind Turbines Using Four-Level Converters and a Simple Control Scheme Based on Two-Step Model Predictive Strategy—Part I: Modeling and Theoretical Analysis , 2014, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[12]  Sanjib Kumar Panda,et al.  Application of Four-Switch-Based Three-Phase Grid-Connected Inverter to Connect Renewable Energy Source to a Generalized Unbalanced Microgrid System , 2013, IEEE Transactions on Industrial Electronics.

[13]  Steffen Bernet,et al.  The active NPC converter and its loss-balancing control , 2005, IEEE Transactions on Industrial Electronics.

[14]  P. K. Steimer,et al.  Operation and Control of a Hybrid Seven-Level Converter , 2012, IEEE Transactions on Power Electronics.

[15]  Kaushik Rajashekara,et al.  A New Active Fault-Tolerant SVPWM Strategy for Single-Phase Faults in Three-Phase Multilevel Converters , 2015, IEEE Transactions on Industrial Electronics.

[16]  Jun Li,et al.  Analysis and Design of Active NPC (ANPC) Inverters for Fault-Tolerant Operation of High-Power Electrical Drives , 2012, IEEE Transactions on Power Electronics.

[17]  Dan Wang,et al.  Cascade-Free Fuzzy Finite-Control-Set Model Predictive Control for Nested Neutral Point-Clamped Converters With Low Switching Frequency , 2019, IEEE Transactions on Control Systems Technology.

[18]  Bin Wu,et al.  Finite Control-Set Model Predictive Control (FCS-MPC) of Nested Neutral Point-Clamped (NNPC) Converter , 2015, IEEE Transactions on Power Electronics.

[19]  Dylan Dah-Chuan Lu,et al.  Finite-State Predictive Torque Control of Induction Motor Supplied From a Three-Level NPC Voltage Source Inverter , 2017, IEEE Transactions on Power Electronics.

[20]  Jang-Mok Kim,et al.  Model Predictive Control With a Reduced Number of Considered States in a Modular Multilevel Converter for HVDC System , 2015, IEEE Transactions on Power Delivery.

[21]  Dan Wang,et al.  A Computationally Efficient FCS-MPC Method Without Weighting Factors for NNPCs With Optimal Duty Cycle Control , 2018, IEEE/ASME Transactions on Mechatronics.

[22]  Dan Wang,et al.  Improved finite-control-set model predictive control for active front-end rectifiers with simplified computational approach and on-line parameter identification. , 2017, ISA transactions.

[23]  Bin Wu,et al.  Model Predictive Control of High-Power Modular Multilevel Converters—An Overview , 2019, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[24]  Dan Wang,et al.  An improved finite control-set model predictive control for nested neutral point-clamped converters under both balanced and unbalanced grid conditions , 2019 .

[25]  Guo Chen,et al.  A New Topology for Medium-Voltage Applications , 2018, 2018 IEEE Energy Conversion Congress and Exposition (ECCE).

[26]  Ahoora Bahrami,et al.  A New Five-Level T-Type Nested Neutral Point Clamped (T-NNPC) Converter , 2019, IEEE Transactions on Power Electronics.

[27]  Hendrik du T. Mouton,et al.  Natural balancing of three-level neutral-point-clamped PWM inverters , 2002, IEEE Trans. Ind. Electron..

[28]  S. Bernet,et al.  Design and comparison of 4.16 kV neutral point clamped, flying capacitor and series connected H-bridge multi-level converters , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[29]  Ahoora Bahrami,et al.  Current Control of a Seven-Level Voltage Source Inverter , 2020, IEEE Transactions on Power Electronics.

[30]  Haitao Yang,et al.  Generalized Sequential Model Predictive Control of IM Drives With Field-Weakening Ability , 2019, IEEE Transactions on Power Electronics.

[31]  Hirofumi Akagi,et al.  A New Neutral-Point-Clamped PWM Inverter , 1981, IEEE Transactions on Industry Applications.

[32]  Fanghong Guo,et al.  Priority Sorting Approach for Modular Multilevel Converter Based on Simplified Model Predictive Control , 2018, IEEE Transactions on Industrial Electronics.

[33]  Steffen Bernet,et al.  Switching Loss Analysis of 4.5-kV–5.5-kA IGCTs Within a 3L-ANPC Phase Leg Prototype , 2014, IEEE Transactions on Industry Applications.

[34]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..

[35]  Qiongxuan Ge,et al.  A Novel Seven-Level ANPC Converter Topology and Its Commutating Strategies , 2018, IEEE Transactions on Power Electronics.

[36]  Bin Wu,et al.  Evolution of Topologies, Modeling, Control Schemes, and Applications of Modular Multilevel Converters , 2017, IEEE Journal of Emerging and Selected Topics in Power Electronics.