Optimization of double-sampled PWM used within power supplies

Neacșu, Dorin O.

doi:10.1109/iecon.2013.6699289

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…Observing Harmonic Performance Section 3.2.C has already presented harmonic results for the digital signals acquired from the same SD card by a MATLAB based program set to work similar to an 8-bit microcontroller. Actual hardware signals are acquired to ensure the most accurate estimation of harmonics [2], [36]. The following precautions were taken when setting up the acquisition system: o The measurement window was selected as a multiple of the fundamental period for synchronous sampling and accurate definition of the fundamental component; o The highest number of measurement points was selected, and this was constrained by the need to convert the acquired sampled into the csv format using the size-limited Excel environment; o The highest possible sampling frequency was selected with the National Instruments equipment set on measuring three channels for the three phases of the output voltage.…”

Section: Experimental Results and Measurementsmentioning

confidence: 99%

An SD Card Flash-Memory-Based Implementation of a Multioptimal Three-Phase PWM Generator

Neacșu

Zheng

Lehman

2016

IEEE Trans. Power Electron.

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This paper demonstrates for the first time the use of a very large SD Card flash-memory to the design of a three-phase Pulse Width Modulation (PWM) generator and describes the hardware and software used for implementation. The new digital architecture differs from conventional counter-based implementation, and it follows a pre-programmed optimal PWM pattern that is read from memory with magnitude and phase as coordinates. This architecture allows the inclusion of multiple optimization criteria within the PWM pattern. This digital architecture becomes so valuable since the switching instants can be set in any conceivable manner, away from the rigid constraint of a repetitive sequence of states on each PWM period. Experimental results validate that the proposed new architecture allows simple and low cost implementation of complicated PWM patterns with harmonic reductions that could not otherwise be achieved for low cost.

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Section: Experimental Results and Measurementsmentioning

confidence: 99%

An SD Card Flash-Memory-Based Implementation of a Multioptimal Three-Phase PWM Generator

Neacșu

Zheng

Lehman

2016

IEEE Trans. Power Electron.

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“…Extension of the flash memory to other power converter applications is also possible: photovoltaic [23], appliance control [24,25], fuzzy logic control [26].…”

Section: Discussionmentioning

confidence: 99%

A technology demonstrator with a SD Card flash memory for implementation of three-phase multi-optimal PWM generator

Neacșu

Lehman

2014

2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)

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This paper investigates for the first time the use of a very large SD Card flash memory to the design of a three-phase Pulse Width Modulation (PWM) generator and describes the hardware and software used for implementation. The new digital architecture differs from conventional counter-based implementation and it follows a pre-programmed optimal PWM pattern that is read from memory with magnitude and phase as coordinates. This architecture allows the inclusion of multiple optimization criteria within the PWM pattern. Experimental results are shown with a PICDEM PIC18 Explorer Board and a SD Card Reader PICtail Daughter Board, both from Microchip. The optimal PWM pattern is defined in MATLAB and the entire design process is described in this paper.

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“…After careful consideration of existing decisions and methods, a power Pulse Width Modulation (PWM) high-voltage converter was chosen [2,[4][5][6][7][8]. The open input of the converter makes the output characteristic rigid and, accordingly yields more simplifier control.…”

Section: The Power Circuit Of the Proposed High-voltage Convertermentioning

confidence: 99%

High-Voltage Converter for the Traction Application

Volskiy

Skorokhod

Sorokin

2016

Advances in Power Electronics

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High-voltage converter employing IGCT switches (VDC=2800 V) for traction application is presented. Such a power traction drive operates with an unstable input voltage over 2000⋯4000 V DC and with an output power up to 1200 kW. The original power circuit of the high-voltage converter is demonstrated. Development of the attractive approach to designing the low-loss snubber circuits of the high-frequency IGCT switches is proposed. It is established on the complex multilevel analysis of the transient phenomena and power losses. The essential characteristics of the critical parameters under transient modes and the relation between the snubber circuit parameters and the losses are discussed. Experimental results for the prototype demonstrate the properties of new power circuit. The test results confirm the proposed high-voltage converter performance capability as well as verifying the suitability of the conception for its use in the Russian suburban train power system and other high-voltage applications.

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Optimization of double-sampled PWM used within power supplies

Cited by 5 publications

References 28 publications

An SD Card Flash-Memory-Based Implementation of a Multioptimal Three-Phase PWM Generator

An SD Card Flash-Memory-Based Implementation of a Multioptimal Three-Phase PWM Generator

A technology demonstrator with a SD Card flash memory for implementation of three-phase multi-optimal PWM generator

High-Voltage Converter for the Traction Application

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