Modified Space Vector Modulation for Cascaded H-Bridge Multilevel Inverter with Open-Circuit Power Cells

Trương, Hoàng Lê; Mai, C.Y.; Nguyen, Cao Son; Vu, Phuong

doi:10.1155/2021/6643589

Cited by 5 publications

(5 citation statements)

References 21 publications

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“…An important drawback of the previous reconfiguration strategy is its effect on the common mode voltage, which can lead to unbearable stress on the machine bearings [84]. Many papers including [87][88][89][90][91][92][93][94] have used this method in their faulttolerant operation scheme.…”

Section: Voltage Extensionmentioning

confidence: 99%

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

et al. 2023

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The reliability of power electronic converters is a major concern in industrial applications because of using prone-to-failure elements such as high-power semiconductor devices and electronic capacitors. Hence, designing fault-tolerant inverters has been of great interest among researchers in both academia and industry over the last decade. Among the three stages of fault management, compensating the fault is the most important and challenging part. The techniques for fault compensation can be classified into three groups: hardware redundancy methods which use extra switches, legs, or modules to replace the faulty parts directly or indirectly, switching states redundancy methods which are about omitting and replacing the impossible switching states, and unbalance compensation including the techniques to compensate for the unbalances in the system caused by a fault. In this paper, an overview of fault-tolerant inverters is presented. A classification of fault-tolerant inverters is demonstrated and major cases in each of its categories are explained.

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Section: Voltage Extensionmentioning

confidence: 99%

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

et al. 2023

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“…By solving 𝜕𝐽 𝑁 𝜕𝑼 = 0, the optimal solution 𝑼 𝑢𝑐 is yielded in (12), which does not necessary belong to the finite control-input set U .…”

Section: Sphere Decoding Algorithm (Sda)mentioning

confidence: 99%

“…However, this hardware solution can lead to an increase in the size and cost of the system. Therefore, mitigation of CMV based on control method approaches like SVM [12], [13], MPC [14], [15] is preferred.…”

Section: Introductionmentioning

confidence: 99%

Modified multistep model predictive control for three-phase induction motor drive system considering the common-mode voltage minimization

Pho

Cao

Hoan

et al. 2021

IJPEDS

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It is acknowledged that the common-mode voltage may have detrimental effects on an induction motor (IM) drive system if not properly addressed. Therefore, in this paper, a modified multistep model predictive control method for IM drive system considering the common-mode voltage minimization is proposed. This research uses a multi-objective cost function, before applying the Sphere Decoding Algorithm to find the optimal control input. The results show that the proposed control method not only reduces the common-mode voltage significantly but also mitigates the computational burden of the microprocessor without affecting the system performance. The proposed control method is simulated by MATLAB-Simulink for an IM drive system with an 11-level cascaded H-bridge inverter.

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“…The control strategy was applied via SVM with a PR regulator. In [31], an SVM control technique was suggested to raise the efficiency of the CHB MLIs under faulty conditions, in case one or various power cells were not employed.…”

Section: Introductionmentioning

confidence: 99%

Design of Cascaded Multilevel Inverter and Enhanced MPPT Method for Large-Scale Photovoltaic System Integration

et al. 2023

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The key goal of this effort is to develop an efficient control system for a three-phase cascaded H-bridge multilevel inverter powered by the photovoltaic (PV) system. The power for the system is generated through the use of PV modules, which serve as DC inputs for the cascaded H-bridge multilevel inverter. The authors aim to achieve a nearly sinusoidal signal at the voltage level and are specifically focused on minimizing the total harmonic distortion (THD) to the smallest possible value. Hence, an advanced N-level space vector modulation (SVM) is developed to ensure an appropriate control for the cascaded inverter. The aim is to design an effective control strategy to increase inverter efficacy and, thus, supply the best output quality. In addition, a robust approach to the maximum power point (MPP) tracking (MPPT) technique is developed based on an adaptive perturb and observe (P&O) algorithm to ensure superior tracking of the MPP. The developed algorithm eliminates 90% of the power curve area in the search space process and only maintains 10% of the area that includes the MPP. Each PV system employs its own improved MPPT control. The numerical results confirm that the enhanced P&O algorithm attains a precise response with superior efficiency and a fast response under the fast alteration of environmental conditions. Hence, the energy loss is reduced. The simulation results validate the effectiveness of this study, highlighting the high efficiency of the control strategy and the enhanced performance of the proposed scheme with lesser THD values.

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Modified Space Vector Modulation for Cascaded H-Bridge Multilevel Inverter with Open-Circuit Power Cells

Cited by 5 publications

References 21 publications

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

Modified multistep model predictive control for three-phase induction motor drive system considering the common-mode voltage minimization

Design of Cascaded Multilevel Inverter and Enhanced MPPT Method for Large-Scale Photovoltaic System Integration

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