Inverted sine carrier for fundamental fortification in PWM inverters and FPGA based implementations

Jeevananthan, S.; Ramachandran, Nandhakumar; Dananjayan, P.

doi:10.2298/sjee0702171j

Cited by 39 publications

(14 citation statements)

References 9 publications

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“…For the hybrid multilevel inverter several sinusoidal PWM techniques have been developed [2,3].The most popular and simple switching scheme for multilevel inverter is the multicarrier PWM technique (MCPWM).The proposed PWM strategy replaces the conventional fixed frequency carrier waveform [6,7] by variable frequency inverted sine wave. The inverted sine PWM has a better spectral quality and a higher fundamental voltage compared to the triangular based PWM.But the main drawback is the marginal boost in the magnitude of lower order harmonics and unbalanced switch utilization.…”

Section: Proposed Variable Frequency Inverted Sine Pwm Technique (Vfimentioning

confidence: 99%

Hybrid Multilevel Inverter using ISPWM Technique for Fuel Cell Applications

Seyezhai¹,

Mathur²

2010

IJCA

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Fuel cells have been considered as the primary energy source for the distributed power generation as they are highly efficient, modular and clean. The main drawback is that the dc voltage generated by a single fuel cell varies from 0.7V to 1V. Due to the low input voltage in fuel cells, a suitable power conditioner is required to interface to the utility grid or local loads. To meet this requirement, this paper presents the design, development and performance of a hybrid cascaded multilevel inverter. The advantage of the proposed topology is that the modulation, control and protection requirements of each bridge are modular and it requires only a single dc source in each phase leg. A twolevel H-bridge inverter using variable frequency inverted sine wave carrier modulation technique has been studied for total harmonic distortion (THD) and switching losses for fuel cell applications. A detailed study of the technique was carried out through MATLAB/SIMULINK for switching losses and THD. The results were verified experimentally. It was noticed that the proposed modulation strategy results in lower switching losses for a chosen THD as compared to the conventional strategies.

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Section: Proposed Variable Frequency Inverted Sine Pwm Technique (Vfimentioning

confidence: 99%

Hybrid Multilevel Inverter using ISPWM Technique for Fuel Cell Applications

Seyezhai¹,

Mathur²

2010

IJCA

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“…Corzine, et al, [3] analysed control of cascaded multilevel inverter. Jeevananthan et al proposed inverted sine carrier for fundamental fortification in PWM inverters and FPGA based implementation [4]. Rajesh gupta, et al, [5] developed switching characteristics of cascaded multilevel inverter controlled systems.…”

Section: Introductionmentioning

confidence: 99%

Hardware Implementation of Cascaded Hybrid Multilevel Inverter with Reduced Number of Switches

Balamurugan

Natarajan

Anandhi

et al. 2016

IJEECS

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“…To overcome this poor utilization of DC voltage, innovative techniques have been presented [2][3][4][5][6][7][8][9]. It can be seen that an intelligent formation of PWM pulse pattern can enhance the fundamental.…”

Section: Introductonmentioning

confidence: 99%

Novel PWM technique for fundamental fortification in voltage source inverters

Ramanan

Kumar

Rajaram

et al. 2014

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014]

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Pulse width modulation (PWM) techniques have been used extensively for DC-AC conversion in voltage source inverters. The domain of PWM techniques has undergone intensive research in the past decades. Of the many characteristics of the inverter, fundamental fortification reduced total harmonic distortion (THD) and reduced switching losses have been prime focuses in the literature. This paper presents a novel PWM technique, which introduces a modified reference as well as a modified carrier used to generate the PWM pattern. The reference is a combination of trapezoidal and third harmonic injection PWM functions. The carrier is a modified inverted sine function. The proposed PWM scheme is implemented and studied for a single phase voltage source inverter (VSI) using MATLAB software. The new PWM enhances the fundamental by 19.35% vis-à-vis the conventional Sinusoidal PWM (SPWM). In addition to fundamental fortification, suppression of lower order harmonics and reduction of THD is noticed. Also, a significant reduction in the inverter's switching has been made by decreasing it to two fifths of a conventional SPWM inverter.

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Inverted sine carrier for fundamental fortification in PWM inverters and FPGA based implementations

Cited by 39 publications

References 9 publications

Hybrid Multilevel Inverter using ISPWM Technique for Fuel Cell Applications

Hybrid Multilevel Inverter using ISPWM Technique for Fuel Cell Applications

Hardware Implementation of Cascaded Hybrid Multilevel Inverter with Reduced Number of Switches

Novel PWM technique for fundamental fortification in voltage source inverters

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