Analysis of Minimum Modulation for the 9-Level Multilevel Inverter in Asymmetric Structure

Vargas, R.; Figueroa, Aldo; DeLeon, S. E.; Aguayo, J.; Hernandez, Ladia M.; Rodrı́guez, Miguel A.

doi:10.1109/tla.2015.7350030

Cited by 26 publications

(11 citation statements)

References 12 publications

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“…In APOD all the carrier waveforms has same frequency but each adjacent carrier wave are phase shifted. The IPD, POD, APOD waveforms with carrier and modulated waveform [11] is shown in figure 3,4 and 5. The number of carrier waves will be based upon the subtraction of number of voltage levels by 1 ie., in propose paper levels to be attained is nine, then number of carriers is 9-1=8.This paper focuses on POD based SPWM because it diminishes the harmonics at a lower modulation values.…”

Section: Control Strategymentioning

confidence: 99%

A Unique Single Source Nine Level Inverter with Reduced Switching Devices for Single Phase AC Applications

Sundar¹,

Gnanavel²,

Muthukumar³

2019

IJEAT

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In recent times there is a huge demand in reduced switched multilevel inverter. The multilevel inverter is one of the attractive features in harmonics elimination. This paper proposes single source nine level inverter with reduced switching devices for single phase AC applications. The conventional cascaded and other multilevel inverter comprises of more number of switches, passive components as well as sources. This makes the system larger in size, weight as well as less cost effective. The proposed multilevel inverter has the ability of producing nine levels with reduced number of switches and source. In addition to that the single source nine level inverter utilizes the simplified control algorithm which reduces the complexity. The Sinusoidal Pulse Width Modulation (SPWM) scheme is one of the most common control techniques which have the simple structure. The operation of the circuit and control algorithm is discussed in detail. The results are verified by the Matlab/Simulink which shows the value and righteousness of the system.

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Section: Control Strategymentioning

confidence: 99%

A Unique Single Source Nine Level Inverter with Reduced Switching Devices for Single Phase AC Applications

Sundar¹,

Gnanavel²,

Muthukumar³

2019

IJEAT

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“…Salah satu dari metode pensaklarannya adalah Phase Disposition Pulse Width Modulation (PDPWM) [11] [12]. Metode PDPWM adalah salah satu strategi modulasi dari perpotongan antara gelombang segitiga dengan gelombang sinus yang menghasilkan pulsa pembangkit [13] [14].…”

Section: Pendahuluanunclassified

Neutral Point Clamped Multilevel Inverter Tiga Fasa Menggunakan Metode Phase Disposition Pulse Width Modulation

Semendawai¹,

Sutikno²

2018

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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The inverter technology has grown rapidly and widely that used in the industrial and the commercial application. One of those improvements an inverter is a discharge waveform that called the multilevel inverter (MLI). The multilevel Inverter (MLI) can be decreasing load of the switching component because the generator wave generated low frequency and AC voltage within capability output. In this work is made the three-phase of multilevel inverter (MLI) simulation by Matlab / Simulink tools. The process is used the multilevel inverter (MLI) topology that provided Neutral Point Clamped (NPC) and Phase Disposition Pulse Width Modulation (PDPWM) method to get a modulated waveform and AC voltage within the sine wave phase. This analysis is done successfully the three-phase NPC-MLI series simulation by wave level varieties in output wave phase. The result is shown the AC voltage wave that carried by phases of the three wave level and the voltage phases of five wave level.

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“…Each cell considers the use of photovoltaic panels with different levels of DC voltage under the ratio 9:3:1. It is possible to find in the literature other asymmetry proportions for this converter [29,30]; however, it has been shown that the used relation minimizes the redundant states [8,9] and, therefore, generates less harmonic content in the resulting waveforms of the converter. Due to the asymmetric distribution of the voltages, HPC handles, at most, one of the total power of the converter, while the rest is distributed between the MPC and LPC modules.…”

Section: Introductionmentioning

confidence: 99%

Improved Predictive Control for an Asymmetric Multilevel Converter for Photovoltaic Energy

et al. 2020

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This article proposes a 27-level asymmetric cascade H-bridge multilevel topology for photovoltaic applications, which considers a predictive control strategy that allows minimization of the commutations of the converter. This proposal ensures a highly sinusoidal and stable photovoltaic injection when there are solar irradiance disturbances, generating a low distortion in the current waveform and low switching losses. To validate the performance of the control and the proposed topology, the dynamic model of the alternating current (AC) and direct current (DC) side system is first obtained, which is checked by computational simulations. Subsequently, the implementation of a master–slave control is carried out, focused on the control of DC voltage and AC current. The proposal is simulated, and the total harmonic distortion (THD) is obtained in the voltage and current waveforms. Undesired commutations, typical of the predictive control, are eliminated in the AC voltage waveform, and a proper DC voltage tracking is achieved for the high-power cell. In order to demonstrate the performance of the proposed control strategy, a low-power proof-of-concept prototype is implemented, in which the energy is injected to the grid, under the event of solar irradiance disturbances (with DC control).Then, the undesired switching in the main cell is eliminated, generating THDs in the voltage and current signal of 7.76% and 2.65%, respectively.

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Analysis of Minimum Modulation for the 9-Level Multilevel Inverter in Asymmetric Structure

Cited by 26 publications

References 12 publications

A Unique Single Source Nine Level Inverter with Reduced Switching Devices for Single Phase AC Applications

A Unique Single Source Nine Level Inverter with Reduced Switching Devices for Single Phase AC Applications

Neutral Point Clamped Multilevel Inverter Tiga Fasa Menggunakan Metode Phase Disposition Pulse Width Modulation

Improved Predictive Control for an Asymmetric Multilevel Converter for Photovoltaic Energy

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