Digital implementation of SHE-PWM modulation on FPGA for a multilevel inverter

Alves, Max Dannyell de Carvalho; Aquino, Ranoyca Nayana Alencar Leão e Silva

doi:10.1109/sbse.2018.8395530

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Currently, for most AFEs as part of an SMD, PWM with selected harmonic elimination (SHE) is used to provide the best quality of converted voltage under the low semiconductor module's switching frequency [11][12][13][14][15]. Along with good electromagnetic compatibility, PWM with SHE facilitates the use of the DC link voltage at the six-step modulation level (K PWM ≈ 2/π) [16][17][18]. The E AFE vector length is controlled using the modulation index m, which is calculated as follows:…”

Section: Eafe Egmentioning

confidence: 99%

Control over Grid Reactive Power by Using a Powerful Regenerative Controlled-Speed Synchronous Motor Drive

Maklakov

Nikolaev

Lisovskaya

2023

Designs

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The authors propose a technique for reactive power compensation using a powerful regenerative controlled-speed synchronous motor drive (SMD) based on a three-level (3L) neutral point clamped (NPC) active front-end rectifier (AFE) and a voltage source inverter (VSI). The review of technical solutions for reactive power compensation showed that the limitations on the transmitted reactive power in the system under consideration still have not been studied. The paper provides a mathematical description and proposes synthesis-friendly block diagrams of the mathematical 3L-NPC-AFE-VSI and SMD models. The developed models allow defining the instantaneous values of the total 3L-NPC-AFE power consumed from the grid depending on the SMD load diagram. It is noted that the 3L-NPC-AFE-VSI-SMD system is designed without considering the opportunities for reactive power generation. It was determined that the limit value of reactive power generated by a 3L-NPC-AFE depends on the DC link voltage, the grid current consumption and the modulation index. The possibility of reactive power compensation by the SMD system through a 3L-NPC-AFE was experimentally tested on the main drive of a metal plate hot rolling mill. The analysis of the results obtained showed that during the breakdown, an SMD can generate reactive power equal to 16% of the total rated power using a 3L-NPC-AFE at a rated DC link voltage and without overcurrent. It was shown that generating reactive power is expedient in low-load SMD operation modes or at idle. Research in this area is promising due to the widespread use of high-power SMD based on a 3L-NPC-AFE-VSI and the tightening of requirements for energy saving and efficiency and supply voltage quality. The proposed reactive power control technique can be used as part of an industrial smart grid.

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Section: Eafe Egmentioning

confidence: 99%

Control over Grid Reactive Power by Using a Powerful Regenerative Controlled-Speed Synchronous Motor Drive

Maklakov

Nikolaev

Lisovskaya

2023

Designs

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“…In addition, a review of the scientific literature shows that the main factors affecting the output voltage/current spectrum on the high-power AFE converter side using PPWM are the accuracy of synchronization with the grid, the frequency of the voltage/current control loop, the sampling frequency of microcontroller (DSP/FPGA), the passive filter, the voltage distortion and impedance of the network, the voltage distortion and impedance in the circuit network, the response speed of the control system, the balance of the DC-link voltage, and the applied PPWM switching pattern/sequence of the semiconductor module in the high-power AFE converter [168].…”

mentioning

confidence: 99%

Formulations, Solving Algorithms, Existing Problems and Future Challenges of Pre-Programmed PWM Techniques for High-Power AFE Converters: A Comprehensive Review

et al. 2022

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Considering the development of the hybrid wind and solar photovoltaic generation and smart grid, Active Front-End (AFE) converters for high-power applications are facing significant opportunities and challenges related to power quality and efficiency. The Pre-programmed Pulse-Width Modulation (PPWM) techniques can strictly control the harmonic spectrum of a specified voltage or current waveform generated by a high-power AFE converters, and have been extensively applied to reduce or even eliminate the harmonic distortion with low switching losses for high-power converters in order to deal with these issues aforementioned. For the PPWM techniques with low switching frequency, Selective Harmonic Elimination (SHE) and Selective Harmonic Mitigation (SHM) have been the prevailing solutions and gain widespread popularity, among which SHM can provide further control of the harmonic spectrum in cases of similar switching losses to SHE. Over the past several decades, the applications of SHE and SHM have been extended to high-power AFE converters. Thus, the aim of this study is to provide a comprehensive literature review regarding their various formulations, solving algorithms, and existing problems to high-power AFE converters. In addition, the suggestions for future applications of PPWM in high-power AFE converters are also discussed.

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Hardware-In-Loop Implementation of Single DC Source PV Fed Grid Tied Multilevel Converter

Yadav

Mishra

Singh

2020

2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE2020)

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Digital implementation of SHE-PWM modulation on FPGA for a multilevel inverter

Cited by 5 publications

References 10 publications

Control over Grid Reactive Power by Using a Powerful Regenerative Controlled-Speed Synchronous Motor Drive

Control over Grid Reactive Power by Using a Powerful Regenerative Controlled-Speed Synchronous Motor Drive

Formulations, Solving Algorithms, Existing Problems and Future Challenges of Pre-Programmed PWM Techniques for High-Power AFE Converters: A Comprehensive Review

Hardware-In-Loop Implementation of Single DC Source PV Fed Grid Tied Multilevel Converter

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