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Energies
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Selected Papers from TIKI IEEE ICASI 2019
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Selected Papers from TIKI IEEE ICASI 2019

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (31 August 2019) | Viewed by 11393

Special Issue Editors

Prof. Dr. Shoou-Jinn Chang

E-Mail Website
Guest Editor
Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan
Interests: optical and electronic devices; semi-conductive materials; nanotechnology
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Sheng-Joue Young

E-Mail Website
Guest Editor
Department of Electronic Engineering, National United University, Miaoli City 36063, Taiwan
Interests: semiconductor physics; optoelectronic devices; nanotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The 5th IEEE International Conference on Applied System Innovation 2019 (IEEE ICASI 2019, https://2019.icasi-conf.net/) will be held in Fukuoka, Japan on 11–15 April 2019, and will provide a unified communication platform for a wide range of topics. The Special Issue of Energies entitled “Selected Papers from TIKI IEEE ICASI 2019” will provide related scientific research, technology development, and policy and management studies. It will publish reviews and regular research papers. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. The full experimental details must be provided so that the results can be reproduced.

This Special Issue will select excellent papers from TIKI IEEE ICASI 2019. We invite investigators to contribute original research articles as well as review articles to this Special Issue. Potential topics include, but are not limited to:

  • Energy Fundamentals
  • Primary Energy Sources
  • Secondary Energy Sources and Energy Carriers
  • Energy Exploration
  • Intermediate and Final Energy Use
  • Energy Conversion Systems
  • Energy Policy
  • Exergy
  • Energetics
  • Energy Research and Development

Prof. Dr. Shoou-Jinn Chang
Prof. Dr. Sheng-Joue Young
Dr. Stephen D. Prior
Prof. Dr. Liang-Wen Ji
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • advanced materials
  • microelectronic devices
  • optical sensors

Published Papers (4 papers)

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Research

15 pages, 3971 KiB  
Article
Development of an SDBC-MMCC-Based DSTATCOM for Real-Time Single-Phase Load Compensation in Three-Phase Power Distribution Systems
by Wei-Neng Chang and Ching-Huan Liao
Energies 2019, 12(24), 4705; https://doi.org/10.3390/en12244705 - 10 Dec 2019
Cited by 6 | Viewed by 1728
Abstract
This paper proposes a newly developed single-delta bridge-cell, modular multilevel cascade converter (SDBC-MMCC)-based distribution-level static synchronous compensator (DSTATCOM) for single-phase load compensation in three-phase, three-wire electric power distribution systems. Each main circuit arm of the DSTATCOM uses a modular multilevel cascade converter based [...] Read more.
This paper proposes a newly developed single-delta bridge-cell, modular multilevel cascade converter (SDBC-MMCC)-based distribution-level static synchronous compensator (DSTATCOM) for single-phase load compensation in three-phase, three-wire electric power distribution systems. Each main circuit arm of the DSTATCOM uses a modular multilevel cascade converter based on full-H-bridge (FHB) cells. The three main DSTATCOM arms are delta-connected to allow phase-independent operations for phase balancing and unity power factor correction of the single-phase load in three-phase, three-wire electric power distribution systems. By using the symmetrical components method, a feedforward compensation algorithm was employed for the DSTATCOM. A simulation of the DSTATCOM was performed for functioning verification. Finally, a hardware test system was built by using a multi-DSP-based control system. The test results verified the effectiveness of the proposed SDBC-MMCC-based DSTATCOM in single-phase load compensation. Full article
(This article belongs to the Special Issue Selected Papers from TIKI IEEE ICASI 2019)
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17 pages, 7116 KiB  
Article
Enhancing the Performance of Textured Silicon Solar Cells by Combining Up-Conversion with Plasmonic Scattering
by Wen-Jeng Ho, Wei-Chen Lin, Jheng-Jie Liu, Hong-Jhang Syu and Ching-Fuh Lin
Energies 2019, 12(21), 4119; https://doi.org/10.3390/en12214119 - 28 Oct 2019
Cited by 2 | Viewed by 2532
Abstract
This paper experimentally demonstrates the benefits of combining an up-conversion (UC) layer containing Yb/Er-doped yttrium oxide-based phosphors with a plasmonic scattering layer containing indium nanoparticles (In-NPs) in enhancing the photovoltaic performance of textured silicon solar cells. The optical emissions of the Yb/Er-doped phosphors [...] Read more.
This paper experimentally demonstrates the benefits of combining an up-conversion (UC) layer containing Yb/Er-doped yttrium oxide-based phosphors with a plasmonic scattering layer containing indium nanoparticles (In-NPs) in enhancing the photovoltaic performance of textured silicon solar cells. The optical emissions of the Yb/Er-doped phosphors were characterized using photoluminescence measurements obtained at room temperature. Optical microscope images and photo current-voltage curves were used to characterize the UC emissions of Yb/Er-doped phosphors under illumination from a laser diode with a wavelength of 1550 nm. The plasmonic effects of In NPs were assessed in terms of absorbance and Raman scattering. The performance of the textured solar cells was evaluated in terms of optical reflectance, external quantum efficiency, and photovoltaic performance. The analysis was performed on cells with and without a UC layer containing Yb/Er-doped yttrium oxide-based phosphors of various concentrations. The analysis was also performed on cells with a UC layer in conjunction with a plasmonic scattering layer. The absolute conversion efficiency of the textured silicon solar cell with a combination of up-conversion and plasmonic-scattering layers (15.43%) exceeded that of the cell with an up-conversion layer only (14.94%) and that of the reference cell (14.45%). Full article
(This article belongs to the Special Issue Selected Papers from TIKI IEEE ICASI 2019)
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11 pages, 1646 KiB  
Article
Study of Solid Calcium Diglyceroxide for Biodiesel Production from Waste Cooking Oil Using a High Speed Homogenizer
by Ming-Chien Hsiao, Li-Wen Chang and Shuhn-Shyurng Hou
Energies 2019, 12(17), 3205; https://doi.org/10.3390/en12173205 - 21 Aug 2019
Cited by 14 | Viewed by 3182
Abstract
Biodiesel has been one of the potential candidates in the field of renewable energy due to its biodegradability and non-toxicity in the natural environment. In addition, due to its high boiling point, the transportation of biodiesel is much safer than that of conventional [...] Read more.
Biodiesel has been one of the potential candidates in the field of renewable energy due to its biodegradability and non-toxicity in the natural environment. In addition, due to its high boiling point, the transportation of biodiesel is much safer than that of conventional fuel. However, the cost remains a challenge for the development of biodiesel. In this study, a homogenizer system, which can intensively minimize raw materials, is utilized as an effective approach to assist the production of both the calcium diglyceroxide (CaDG) catalyst and biodiesel. Several operational factors were evaluated to obtain the optimal conditions, and a desirable biodiesel conversion of 77.24% was achieved at a methanol-to-oil molar ratio of 7, with 2.0 g of calcium diglyceroxide, a rotation speed of 7000 rpm, a reaction temperature of 65 °C and a reaction period of 90 min. Full article
(This article belongs to the Special Issue Selected Papers from TIKI IEEE ICASI 2019)
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20 pages, 4243 KiB  
Article
A Modulated Model Predictive Current Controller for Interior Permanent-Magnet Synchronous Motors
by Crestian Almazan Agustin, Jen-te Yu, Cheng-Kai Lin and Xiang-Yong Fu
Energies 2019, 12(15), 2885; https://doi.org/10.3390/en12152885 - 26 Jul 2019
Cited by 10 | Viewed by 3378
Abstract
Model predictive current controllers (MPCCs) are widely applied in motor drive control and operations. To date, however, the presence of large current errors in conventional predictive current control remains a significant predicament, due to harmonic distortions and current ripples. Naturally, noticeable current estimation [...] Read more.
Model predictive current controllers (MPCCs) are widely applied in motor drive control and operations. To date, however, the presence of large current errors in conventional predictive current control remains a significant predicament, due to harmonic distortions and current ripples. Naturally, noticeable current estimation inaccuracies lead to poor performance. To improve the above situation, a modulated model predictive current controller (MMPCC) is proposed for interior permanent-magnet synchronous motors (IPMSMs) in this paper. Two successive voltage vectors will be applied in a sampling period to greatly boost the number of candidate switching modes from seven to thirteen. A cost function, which is defined as the quadratic sum of current prediction errors, is employed to find an optimal switching mode and an optimized duty ratio to be applied in the next sampling period, such that the cost value is minimal. The effectiveness of the proposed method is verified through eight experiments using a TMS320F28379D microcontroller, and performance comparisons are made against an existing MPCC. In terms of quantitative improvements made to the MPCC, the proposed MMPCC reduces its current ripple and total harmonic distortion (THD) by, on average, 27.17% and 21.84%, respectively. Full article
(This article belongs to the Special Issue Selected Papers from TIKI IEEE ICASI 2019)
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