Space-Vector-Based Hybrid Pulsewidth Modulation Techniques for a Three-Level Inverter

Das, Soumitra; Narayanan, G.; Pandey, Manoj

doi:10.1109/tpel.2013.2287095

Cited by 82 publications

(22 citation statements)

References 39 publications

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“…Three CHBVSI cells produce 27-level output voltage depending on the structure (Vdc, 3Vdc, 9Vdc) type which is adopted and built by [10][11][12][13][14][15] applying optimization, selective harmonic elimination (SHE), and multi-carrier PWM techniques. The output phase voltage of multilevel voltage source inverter can be improved using different PWM techniques to get approximating sinusoidal waveform of the output voltage [16,17].…”

Section: Introductionmentioning

confidence: 99%

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Antar¹,

Sadiq²,

Saleh³

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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Sensorless speed and torque control of a three-phase induction motor utilizing cascaded H-bridge inverter with unequal selected DC voltage sources (USDCVS) is presented in this study. Several output voltages with minimum distortions and IGBTs are achieved with DC input voltage sources equal to (1, 3, 9) Vdc. The induction motor speed and torque are estimated depending on the instantaneous output phase voltages and currents of the drive circuit. A novel controller circuit is built depending on a modified absolute sinusoidal PWM (MASPWM) technique. Embedded s-function is coded to regenerate switching pulses and get various output levels. Simulation results demonstrate that the USDCVS of the multilevel inverter based on MASPWM technique produces different output levels with acceptable distortion. Also, show an acceptable sensorless speed and torque responses at steady-state and dynamic operation conditions under different speeds and mechanical load torques that explained the strength of the drive and control circuits.

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Section: Introductionmentioning

confidence: 99%

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Antar¹,

Sadiq²,

Saleh³

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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“…Reddy et al [18] reports that torque pulsation is strongly influenced by the PWM technique used, especially in open loop V/f controlled IM, and they conclude that hybrid PWM shows better reduction in torque ripples when compared with conventional SVPWM technique. Also, space vector based hybrid PWM techniques involving multiple sequences were introduced by Narayanan et al [19] and Das et al [20] for reducing current ripples at high line voltages. They reported that hybrid PWM notable reduces the THD at low and high-speed ranges of a constant V/f controlled IM drive, when compared to centered SVPWM [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Different PWM Techniques on V/f-based Speed Control with Boost Voltage Application for Induction Motors

Kesler¹

2018

Pamukkale J Eng Sci

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This paper presents a comparative study and a method to improve Volt-Hertz (V/f) based speed control of Induction Motors (IMs). For this purpose, Sinusoidal Pulse Width Modulation (SPWM) and space vector pulse width modulation (SVPWM) techniques are investigated and evaluated, especially from the point of their control performance on the V/f-based control for three-phase IMs working at different load and speed conditions. From this aspect, it is a different study from the literature. Steady and transient effects of both techniques on the above mentioned control methods are analyzed for several case studies. Afterwards, adjustable boost voltage application with modified reference commands technique is proposed for both PWM methods in order to improve start-up performance. All investigations for both PWM models are carried out under the same conditions. Although SVPWM technique gives more effective results in many cases, the proposed method provides noticeable improvements on SPWM-based applications from point of performance on the control method. As a novelty of this study, it is shown that, the bad performance of the control method at low frequency in SPWM application, which has lower computational burden for low cost microcontroller, can be improved by applying adjustable boost voltage along with modified references that are proportional to the DC bus current. Bu makale, Asenkron Motorlarının (IM veya ASM) Volt-Hertz (V/f) tabanlı hız kontrolünü iyileştirmek için bir yöntem ve karşılaştırmalı bir çalışma sunmaktadır. Bu amaçla, özellikle farklı yük ve hız koşullarında çalışan üç fazlı asenkron motorların V/f tabanlı hız kontrol performansı açısından sinüzoidal darbe genişlik modülasyonu (SPWM) ve uzay vektör darbe genişliği modülasyonu (SVPWM) teknikleri incelenip değerlendirilmiştir. Bu bakımdan, literatürden farklı bir çalışmadır. Her iki tekniğin yukarıda belirtilen kontrol yöntemi üzerindeki kararlı ve geçici hal etkileri çeşitli örnek durumlar üzerinde analiz edilmiştir. Daha sonra, kalkış performansını artırmak için her iki PWM yönteminde de düzeltilmiş referans komut tekniğine eşlik eden ayarlanabilir yükseltici gerilim uygulaması önerilmiştir. Her iki PWM modeli için yapılan tüm araştırmalar aynı koşullar altında gerçekleştirilmiştir. SVPWM tekniği birçok durumda daha etkin sonuçlar vermesine rağmen, kontrol yöntemi üzerindeki performans açısından SPWM tabanlı uygulamalarda önerilen yöntem dikkate değer iyileştirmeler sağlamaktadır. Bu çalışmanın bir yeniliği olarak, düşük maliyetli mikrodenetleyici için daha az hesaplama yükü olan SPWM uygulamasında karşılaşılan düşük frekansta kötü kontrol performansı, DC hat akımına göre oransal olarak değişen düzeltilmiş referans komutlarıyla birlikte uygulanan ayarlanabilir yükseltici gerilim yöntemi ile iyileştirilebileceği gösterilmiştir.

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“…The new SVPWM strategies based on 60°coordinate have been proposed in [19,20]. Gupta and Khambadkone [21], Aneesh et al [22], Das and Narayanan [23], Beig et al [24], Das et al [25], Gopinath et al [26], Seo et al [27] and Ahmed and Borghate [28] realise the SVPWM by transforming the calculation of dwelling times and the selection of switching sequences into conventional two-level SVPWM calculation for multi-level inverters. Also, some researchers realise SVPWM strategy by adding zero-sequence components or common voltage injections to the modulation waves of the CBSPWM strategy [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Three‐level saddle space vector pulse width modulation strategy based on two‐level space vector pulse width modulation for neutral‐point‐clamped three‐level inverters

Lyu

et al. 2016

IET Power Electronics

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This study proposes a three-level saddle space vector pulse width modulation (SVPWM) strategy based on twolevel SVPWM (TBT_SAPWM) for neutral-point-clamped (NPC) three-level inverters. According to the analysis of the conventional three-level SVPWM strategy based on two-level SVPWM (CTBT_SVPWM) and the proposed TBT_SAPWM strategy, the modulation wave expressions of the two strategies are derived. Compared to the CTBT_SVPWM strategy, each main sector has its own independent area, and determining the main sectors or regions becomes easier with the proposed TBT_SAPWM strategy. Moreover, by optimising the switching states, the proposed TBT_SAPWM strategy makes on-state duration of one selected phase equal to that of the other selected phases in a switching cycle. Therefore, the three-phase modulation waves are saddle waves at the full range of fundamental wave modulation ratios. According to the experimental results in this study, the proposed TBT_SAPWM strategy has better performances in terms of the output harmonics and the neutral-point voltage ripple, compared to the CTBT_SVPWM strategy. The feasibility and effectiveness of the proposed strategy are verified by the experimental platform of an NPC three-level inverter based on the digital signal processor and complex programmable logic device.

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Space-Vector-Based Hybrid Pulsewidth Modulation Techniques for a Three-Level Inverter

Cited by 82 publications

References 39 publications

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Performance Analysis of Different PWM Techniques on V/f-based Speed Control with Boost Voltage Application for Induction Motors

Three‐level saddle space vector pulse width modulation strategy based on two‐level space vector pulse width modulation for neutral‐point‐clamped three‐level inverters

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