Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

Heredia-Larrubia, J.R.; Meco-Gutiérrez, M.J.; Pérez-Hidalgo, F.

doi:10.1109/access.2023.3269593

Cited by 9 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the realm of three-phase inverter topologies, the THI-PWM method stands out as it has been found to achieve a higher output in terms of voltage and current, while simultaneously maintaining lower THD values when compared to other PWM methods [45]. In this study, one of the modulation techniques employed is the THI-PWM method.…”

Section: 𝑉 = 𝑚mentioning

confidence: 99%

Performance Analysis of Modulation Strategies in Single-Phase HBNPC Inverter Across Variable Operating Conditions

Cavli,

Ozkop

2024

IEEE Access

View full text Add to dashboard Cite

This study investigates the performance of a single-phase 5-level H-Bridge Neutral Point Clamped (HBNPC) inverter across various operating conditions. These conditions encompass variations in output power, frequency, modulation index, and modulation techniques. To adapt modulation strategies typically employed in 3-phase inverter structures, we apply them to a single-phase HBNPC inverter. The modulation strategies under consideration include level-shifted (LS) based on phase disposition pulse width modulation (PD-PWM), third harmonic injection pulse width modulation (THI-PWM), space vector pulse width modulation (SV-PWM), and modified PWM (MPWM). These strategies are developed using different types of reference signals (RS) and carrier signals (CS). Initially, we analyze the inverter's output voltage and current waveforms across various modulation strategy states. Subsequently, we explore the relationships between efficiency, total harmonic distortion (THD), and variable output power across different modulation strategy states. We uncover distinct patterns between modulation strategy-THD, efficiency, and output voltage for maximum inverter output power. Furthermore, we examine the relationship between the modulation index and THD for each modulation strategy state, considering different switching frequencies. Additionally, we investigate the relationship between switching frequency and THD across different modulation index values, approaching the analysis from multiple perspectives. INDEX TERMS Multilevel inverter, modulation technique, carrier signal, HBNPC I. INTRODUCTION

show abstract

Section: 𝑉 = 𝑚mentioning

confidence: 99%

Performance Analysis of Modulation Strategies in Single-Phase HBNPC Inverter Across Variable Operating Conditions

Cavli,

Ozkop

2024

IEEE Access

View full text Add to dashboard Cite

show abstract

“…However, the total number of pulses in a complete period is maintained in relation to any conventional PWM technique. This strategy is commonly referred to in technical literature (particularly in the context of 3-level inverters) as HIPWM-FMTC (Harmonic Injection PWM -Frequency Modulated Triangular Carrier) [31,32,33,34,35,36].…”

Section: New Hipwm-fmtc Strategy Applied To Multilevel Invertersmentioning

confidence: 99%

“…This modification allows for an increase in the instantaneous switching frequency in some time slots while eliminating switching in others [33]. When applied to multilevel inverters, this technique is referred to as HIPWM-FMTC truncated or HIPWM-FMTCt [35]. The instantaneous pulsation of the carrier wave, denoted as ωi, becomes a discontinuous function that is synchronized with the modulating wave ωm.…”

Section: New Hipwm-fmtc Strategy Applied To Multilevel Invertersmentioning

confidence: 99%

“…This modification allows for an increase in the instantaneous switching frequency in some time slots while eliminating switching in others [32]. When applied to multilevel inverters, this technique is referred to as HIPWM-FMTC truncated or HIPWM-FMTCt [33]. The effect of overmodulation to improve the HIPWM-FMTC technique in three-level inverters has also been investigated [34].…”

Section: New Hipwm-fmtc Strategy Applied To Multilevel Invertersmentioning

confidence: 99%

See 1 more Smart Citation

Discontinuous PWM Strategy with Frequency Modulation for Vibration Reduction in Asynchronous Machines

et al. 2023

Self Cite

View full text Add to dashboard Cite

The aim of this paper is to present our research into the reduction of vibrations in induction motors. The use of power inverters results in the generation of electrical harmonics, which increase the level of the mechanical vibrations of electrical machines. To reduce these harmonics, we present a discontinuous pulse-width modulation (PWM) control strategy based on carrier-wave modulation applied to multilevel inverters. Using the proposed modulation technique, the amplitude of the electrical harmonics is reduced, as compared to other conventional techniques. These current harmonics produce the MMF (magnetomotive force) harmonics in the air gap, which are one of the main sources of vibrations. The control strategy makes it possible to vary the electrical spectrum at the output of a multilevel inverter by modifying a control parameter of the carrier wave in the PWM, thus avoiding the natural frequencies of mechanical resonance. The proposed technique also has the feature of attenuating the total harmonics distortion of the voltage of the multilevel inverters, as well as the achievement of a higher RMS value of the output voltage for the same DC level. Laboratory results for an induction motor with different modulation strategies, applied in a multilevel inverter and compared to the strategy presented, are attached.

show abstract

“…The multilevel inverter (MLI) is an alternative solution for three-leg inverters in industrial and utility applications owing to several merits like high-quality output voltage, lower THD, lesser dv/dt, and lower EMI [1][2][3]. In multilevel inverters, the output quality is enriched by raising the number of steps in the load voltage waveform.…”

Section: Introductionmentioning

confidence: 99%

A New Asymmetric H-6 Structured Multilevel Inverter with Reduced Power Components

Radhakrishnan,

Arasan,

Ramalingam

et al. 2024

Symmetry

View full text Add to dashboard Cite

Multilevel inverters play a key role in improving the power quality for industrial, domestic, and renewable energy sectors due to sinusoidal output voltage through small voltage steps, lesser THD (total harmonic distortion), and EMI (electromagnetic interference). There are several variants in MLI structures to generate a stepped voltage with their own operating characteristics, which flaws in switching devices with gate drivers, current conducting switches varied with varied voltage levels, and switches with different abilities in blocking voltagesto overcome increases in implementation costs and restrict its usage in high-power applications. Therefore, this article paves a solution for the above problem, which orients a new structure for asymmetric operation to propel large voltage levels with small values of switches in parallel with conventional topologies. The subtlety of the proposed topology is governed by a multicarrier pulse width modulation scheme, and ten different voltage magnitude algorithms are developed and compared foreffectiveness.Hitherto, many existing MLI topologies with reduced power switches have beendeveloped; among these, the H6 structure attempts to curtail the reduced conduction path. The operation of the suggested topology is confirmed in a Matlab/Simulink environment, and real-time performance is investigated using a laboratory prototype to accord the simulated results.

show abstract

Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

Cited by 9 publications

References 35 publications

Performance Analysis of Modulation Strategies in Single-Phase HBNPC Inverter Across Variable Operating Conditions

Performance Analysis of Modulation Strategies in Single-Phase HBNPC Inverter Across Variable Operating Conditions

Discontinuous PWM Strategy with Frequency Modulation for Vibration Reduction in Asynchronous Machines

A New Asymmetric H-6 Structured Multilevel Inverter with Reduced Power Components

Contact Info

Product

Resources

About