1.
Gupta, J.; Shaik, H.; Gupta, V. K.; Sattar, S. A.
Perspective of Electrochromic Double Layer Towards Enrichment of Electrochromism: A Review Journal Article
In: Brazilian Journal of Physics, vol. 54, pp. 89+, 2024, ISBN: 01039733 (ISSN), (5).
@article{22,
title = {Perspective of Electrochromic Double Layer Towards Enrichment of Electrochromism: A Review},
author = {J. Gupta and H. Shaik and V. K. Gupta and S. A. Sattar},
doi = {10.1007/s13538-024-01463-5},
isbn = {01039733 (ISSN)},
year = {2024},
date = {2024-01-01},
journal = {Brazilian Journal of Physics},
volume = {54},
pages = {89+},
publisher = {Springer},
abstract = {Electrochromism is the exhibition of reversible optical property changes by certain materials upon administration of voltage across it. Tungsten oxide (WO3) finds a diverse range of applications because of its exceptional electrochromism. Amidst all applications, an electrochromic device (ECD) can be considered the most prominent application due to energy saving perspective. Although, WO3 itself has been noticed as an efficient electrochromic layer for EDCs; however, there exists a lot of space and ideas to enhance the electrochromism and hence the efficiency of an ECD. Recently, scientists are paying close attention to hybrid or composite films such as TiO2/WO3 and TiO2/V2O5. Such hybrid films are known as electrochromic double layer (ECDL). This review article strives to deepen our understanding of ECDL and assess their feasibility in the enrichment of electrochromism in ECDs by replacing a single electrochromic layer with an ECDL toward an energy-saving regime. Graphical Abstract: (Figure presented.). © The Author(s) under exclusive licence to Sociedade Brasileira de Física 2024.},
note = {5},
keywords = {EE},
pubstate = {published},
tppubtype = {article}
}
Electrochromism is the exhibition of reversible optical property changes by certain materials upon administration of voltage across it. Tungsten oxide (WO3) finds a diverse range of applications because of its exceptional electrochromism. Amidst all applications, an electrochromic device (ECD) can be considered the most prominent application due to energy saving perspective. Although, WO3 itself has been noticed as an efficient electrochromic layer for EDCs; however, there exists a lot of space and ideas to enhance the electrochromism and hence the efficiency of an ECD. Recently, scientists are paying close attention to hybrid or composite films such as TiO2/WO3 and TiO2/V2O5. Such hybrid films are known as electrochromic double layer (ECDL). This review article strives to deepen our understanding of ECDL and assess their feasibility in the enrichment of electrochromism in ECDs by replacing a single electrochromic layer with an ECDL toward an energy-saving regime. Graphical Abstract: (Figure presented.). © The Author(s) under exclusive licence to Sociedade Brasileira de Física 2024.
2.
Nagaraja, K. G.; Ramesh, H. R.
In: Electrical Engineering, vol. 106, pp. 5543-5556,, 2024, ISBN: 09487921 (ISSN), (0).
@article{30,
title = {Circulating current mitigation for renewable-based modular seven-level converter using deep learning-optimized fractional-order proportional resonant controller},
author = {K. G. Nagaraja and H. R. Ramesh},
doi = {10.1007/s00202-024-02275-1},
isbn = {09487921 (ISSN)},
year = {2024},
date = {2024-01-01},
journal = {Electrical Engineering},
volume = {106},
pages = {5543-5556,},
publisher = {Springer Science and Business Media Deutschland GmbH},
abstract = {Modular multi-level converters (MMCs) are often used for high and medium voltage applications. However, to reduce losses and costs, many researchers prefer a half-bridge converter. In addition, the half-bridge-based MMC is vulnerable in the event of an error, so the full-bridge MMC is used here to work with faulty network states. The losses and harmonics in the system could be reduced by using an appropriate arm voltage and circulating current control model. In order to operate the MMC in a grid-tied renewable system, both outer and inner loop control were performed. In order to realize outer-loop control, a fractional-order proportional–integral–derivative controller using a deep learning technique is proposed. An active power filter-based fractional-order proportional resonant controller with improved pulse width modulation achieves arm balancing with harmonic mitigated circulating current regulation. The simulation shows that the proposed method reduced the current and voltage harmonics to 71.56% and 10.42% through an improved control strategy based on pulse width modulation. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.},
note = {0},
keywords = {EE},
pubstate = {published},
tppubtype = {article}
}
Modular multi-level converters (MMCs) are often used for high and medium voltage applications. However, to reduce losses and costs, many researchers prefer a half-bridge converter. In addition, the half-bridge-based MMC is vulnerable in the event of an error, so the full-bridge MMC is used here to work with faulty network states. The losses and harmonics in the system could be reduced by using an appropriate arm voltage and circulating current control model. In order to operate the MMC in a grid-tied renewable system, both outer and inner loop control were performed. In order to realize outer-loop control, a fractional-order proportional–integral–derivative controller using a deep learning technique is proposed. An active power filter-based fractional-order proportional resonant controller with improved pulse width modulation achieves arm balancing with harmonic mitigated circulating current regulation. The simulation shows that the proposed method reduced the current and voltage harmonics to 71.56% and 10.42% through an improved control strategy based on pulse width modulation. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.