Space Vector Modulation Technique for 3-Level NPC Converter with Constant Switching Frequency

Ouerdani, Imen; Abdelghani, Hafedh Ben; Abdelghani, Afef Bennani-Ben; Montesinos‐Miracle, Daniel; Slama‐Belkhodja, Ilhem

doi:10.1155/2016/6478751

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…There are three branches present in the system, each branch comprising four IGBT switches connected in series. Two diodes are connected on each leg in parallel to prevent activation of the wrong pair of switches [37]− [39].…”

Section: Model Mathematical Of Three Level Invertermentioning

confidence: 99%

A new approach of robust speed-sensorless control of doubly fed induction motor fed by photovoltaic solar panel

Mounira

Cherifi

2023

IJPEDS

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<span lang="EN-US">In this work, we presented the modelling and simulation of the electrical operation of a photovoltaic (PV) system adapted by an MPPT control, the latter is applied to the robust observer for the control of the speed without sensor of a double fed induction motor (DFIM).Our machine is powered by the PV system, where the chosen control is the direct field oriented control with sliding mode speed regulator is used for the control of this machine which is powered by two pulse-width modulation (PWM) voltage inverters, finally the speed estimation of induction motor with observer based dual feed in sliding mode is presented. The simulation results show the efficiency of the proposed method.</span>

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Section: Model Mathematical Of Three Level Invertermentioning

confidence: 99%

A new approach of robust speed-sensorless control of doubly fed induction motor fed by photovoltaic solar panel

Mounira

Cherifi

2023

IJPEDS

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Multilevel Fixed Pulse Pattern Control for Medium-Voltage High-Frequency Inverter

2021

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To satisfy the demand for more compact medium-voltage motor drive systems, it is desirable to increase the frequencies of cascaded H-bridge inverters used in high-speed motor systems. However, in asynchronous pulse-width modulation (PWM) systems, as the output frequency increases, the command voltage and triangular wave carrier frequencies become closer, making it impossible to output the command voltage accurately. This manifests in the form of increased current harmonics, increased surge voltage at the motor terminals, and increased low-frequency ripple current owing to the asynchronous nature of the system. In this study, we adopt a fixed pulse pattern modulation method to address these problems. In our method, a low-distortion output voltage without multiple simultaneous changes is compiled into a table in advance, and subsequently output in synchronization with the fundamental voltage phase. We were able to confirm the effectiveness of the proposed method via simulations and mini-model experiments at fundamental wave frequencies of 700 Hz and 1000 Hz.

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RETRACTED: Comparative study between a three and a five-level inverter for DTC control of the doubly fed induction motor

Cherifi,

Miloud,

ALI

2024

Preprint

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Conventional Direct Torque Control (DTC) is an advanced means of regulating doubly fed induction motors (DFIM) offering superior performance due to its simplicity, high reliability, sensitivity to motor parameters, and improved dynamic response. Nevertheless, the uncontrolled switching frequency of the DTC resulting a high ripple in the torque and the flux which leads to acoustic noise that negatively impacts the control system's performance. Several DTC control strategies have been developed to overcome the limitations of traditional direct torque control (DTC) by concentrating on torque and flux. In this article, the development of DTC is discussed. The main objective of the paper is to improve the performance of conventional DFIM DTC control, thereby reducing energy losses and improving system efficiency, by using multi-level DTC. In this paper, we compare the performance of two structures of DFIM's three-level direct torque control and five-level DTC control and present the simulation results. The flux and torque rays are evaluated and compared. The goal is to determine the control that gives the best results.

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Space Vector Modulation Technique for 3-Level NPC Converter with Constant Switching Frequency

Cited by 4 publications

References 18 publications

A new approach of robust speed-sensorless control of doubly fed induction motor fed by photovoltaic solar panel

A new approach of robust speed-sensorless control of doubly fed induction motor fed by photovoltaic solar panel

Multilevel Fixed Pulse Pattern Control for Medium-Voltage High-Frequency Inverter

RETRACTED: Comparative study between a three and a five-level inverter for DTC control of the doubly fed induction motor

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