Implementation of a Single-carrier Multilevel PWM Technique Using Field Programmable Gate Array (FPGA)

Azli, Naziha Ahmad; Teng, Leitan; Lim, Pei Yi

doi:10.1109/peds.2007.4487801

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…Over the past few years, multilevel inverters have gained significant research interest in high voltage and high-power applications due to their simple structure, modularity and transformer less circuit [1][2][3][4]. Basically, the function of multilevel inverter is to convert direct current (DC) input into alternating current (AC) output by providing a staircase of AC output waveform with low value of high frequency distortion [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The software-based solutions of microprocessor and DSP execute the given tasks sequentially which consequently limit the processing speed, especially for complex computation algorithm. Additionally, limited number of processing units in the processor prevents concurrent execution of the given tasks [2,11]. The specific programming codes for microprocessor or DSP are restricted to one particular device.…”

Section: Introductionmentioning

confidence: 99%

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Multilevel inverter switching controller using a field programmable gate array (FPGA)

Noorsal¹,

Ibrahim²,

Rahim³

et al. 2018

J. Fundam and Appl Sci.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multilevel inverter switching controller using a field programmable gate array (FPGA)

Noorsal¹,

Ibrahim²,

Rahim³

et al. 2018

J. Fundam and Appl Sci.

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“…Therefore, it is a level shifting strategy that uses only one of the multiple carriers as a pattern for the www.ietdl.org PWM in that multilevel topology. This idea of a single carrier and several level-shifted modulating signals used to implement a non-interleaved PWM scheme for cascaded multilevel VSCs has been developed in [26].…”

Section: Introductionmentioning

confidence: 99%

Minimum signal modulation scheme based on a single carrier for interleaved operation of parallel phase legs in voltage source converters

Capella

Gabiola

Pou³

et al. 2014

IET Power Electronics

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Connecting legs in parallel is a common way to increase the output current of a power converter. Interleaving the carriers used to modulate the reference signals for each leg leads to a reduction in the output current ripple without resorting to increasing the switching frequency. A whole set of shifted carriers is required if interleaved pulse-width modulators (PWMs) are used. Implementing this by means of a digital signal processor (DSP) means that the higher the number of carriers, the higher the number of DSP timing resources required. Provided that the latter are usually limited, this could be a drawback when increasing the number of interleaved carriers. This study presents the implementation of a PWM scheme where all modulators use the same carrier offering the same results as if a set of n interleaved carriers were used. Since the proposed algorithm takes maximum benefit from the PWM units available in a DSP, a higher number of legs connected in parallel can be controlled without adding any external processing hardware. A MATLAB/Simulink model has been set up for simulation purposes. Selected experimental results obtained from a three-leg single-phase inverter are reported, confirming the effectiveness of the proposed implementation.

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“…Various switching techniques have been applied to the conventional multilevel inverter topologies such as Sinusoidal pulse width modulation, Space vector modulation, Selective Harmonic elimination, Optimized PWM technique has been reported in literature [5].The most popular method used in multilevel inverter is multicarrier method proposed by Carrara et.al [6].A single carrier PWM method which uses only one carrier signal is also reported in [7] .…”

Section: Introductionmentioning

confidence: 99%

A novel multilevel inverter using single carrier PWM technique

Sruthi¹,

Saritha²

2014

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

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This paper focuses on a nine level multilevel inverter with DC link capacitors at the input side. The main disadvantage of cascaded multilevel inverter is the number of DC sources. So a nine level multilevel inverter with DC link switches, which requires less number of DC sources as compared to the conventional multilevel inverter is proposed. Single carrier method is the control strategy used here. A comprehensive literature survey on existing nine level multilevel inverter is carried out. The feasibility of the proposed nine level inverter is verified through simulation. Proposed nine level inverter is compared with the conventional H bridge multilevel inverter.

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Implementation of a Single-carrier Multilevel PWM Technique Using Field Programmable Gate Array (FPGA)

Cited by 7 publications

References 9 publications

Multilevel inverter switching controller using a field programmable gate array (FPGA)

Multilevel inverter switching controller using a field programmable gate array (FPGA)

Minimum signal modulation scheme based on a single carrier for interleaved operation of parallel phase legs in voltage source converters

A novel multilevel inverter using single carrier PWM technique

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