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Dr JOSE RODRIGUEZ's Outputs (21)

Enhanced Modulated Model Predictive Control for Matrix Converters in Overmodulation Zones (2024)
Journal Article
Sarajian, A., Guan, Q., Harbi, I., Khaburi, D. A., Kennel, R., Garcia, C., Wheeler, P., & Rodriguez, J. (2025). Enhanced Modulated Model Predictive Control for Matrix Converters in Overmodulation Zones. IEEE Open Journal of Power Electronics, 6, 66-77. https://doi.org/10.1109/ojpel.2024.3512855

Modulated Model Predictive Control (MMPC) techniques can be applied to enhance matrix converter (MC) performance in the linear modulation zone (LMZ). However, extending the converter operation in the overmodulation zone (OMZ) remains a problem. A key... Read More about Enhanced Modulated Model Predictive Control for Matrix Converters in Overmodulation Zones.

Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture (2024)
Journal Article
Duran-Jimenez, G., Rodriguez, J., Stevens, L., Altarawneh, S., Batchelor, A., Jiang, L., & Dodds, C. (2024). Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture. Chemical Engineering Journal, 499, Article 156135. https://doi.org/10.1016/j.cej.2024.156135

Biomass residues are crucial feedstocks for facing climate change challenges due to high-value products, such as producing activated carbons (AC) for carbon capture. Two stages of pyrolysis followed by activation at high temperatures are the most use... Read More about Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture.

Full-Cycle Iterative Observer: A Comprehensive Approach for Position Estimation in Sensorless Predictive Control of SynRM (2024)
Journal Article
Nikmaram, B., Mousavi, M. S., Davari, S. A., Flores-Bahamonde, F., Wheeler, P., Rodriguez, J., & Fazeli, M. (2024). Full-Cycle Iterative Observer: A Comprehensive Approach for Position Estimation in Sensorless Predictive Control of SynRM. IEEE Journal of Emerging and Selected Topics in Power Electronics, 12(5), 5246-5257. https://doi.org/10.1109/JESTPE.2024.3451013

This article presents a new iteration algorithm for the position estimation of synchronous reluctance motors by unifying the active flux observer and Newton-Raphson algorithm. Thus, a full-cycle iterative observer is derived, in which the active flux... Read More about Full-Cycle Iterative Observer: A Comprehensive Approach for Position Estimation in Sensorless Predictive Control of SynRM.

Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor (2024)
Journal Article
Rodriguez, J., Morona, L., Erans, M., Buttress, A. J., Nicholls, M., Batchelor, A. R., Duran-Jimenez, G., Kingman, S., Groszek, D., & Dodds, C. (2024). Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor. Chemical Engineering and Processing: Process Intensification, 202, Article 109838. https://doi.org/10.1016/j.cep.2024.109838

Challenges exist to implementing high-temperature microwave processes with changing dielectric properties that achieve uniform processing. This paper presents a new high-temperature hybrid microwave processing system which overcomes these challenges... Read More about Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor.

Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping (2024)
Journal Article
Erans, M., Durán-Jimenez, G., Rodríguez, J. M., Stevens, L., & Dodds, C. (2024). Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping. Journal of Co2 Utilization, 83, Article 102794. https://doi.org/10.1016/j.jcou.2024.102794

Waste eggshells have been investigated as biomineralised CO2 sorbents for the calcium looping cycle due to their high Ca content, low cost, availability, and high CO2 uptake. This work investigates a novel heat-pre-treatment using eggshells as raw ma... Read More about Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping.

Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption (2024)
Journal Article
Durán-Jiménez, G., Rodriguez, J., Stevens, L., Kostas, E. T., & Dodds, C. (2024). Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption. Chemical Engineering Journal, 488, Article 150926. https://doi.org/10.1016/j.cej.2024.150926

Hierarchical porous activated carbons (ACs) were efficiently synthesized in less than 2 min using microwaves and phosphoric acid (H3PO4), exhibiting excellent potential as adsorbent for carbon dioxide (CO2) and Methylene Blue (MB). The method emphasi... Read More about Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption.

Application of a Single-Phase Matrix Converter for Electric Vehicle Charging (2022)
Presentation / Conference Contribution
Vidal, C., Tarisciotti, L., Diaz, M., Cardenas, R., Rodriguez, J., & Wheeler, P. (2022, September). Application of a Single-Phase Matrix Converter for Electric Vehicle Charging. Presented at 2022 IEEE Biennial Congress of Argentina (ARGENCON), San Juan, Argentina

The Single-Phase Matrix Converter has been identified as a potential alternative to enable bidirectional residential electric vehicle charge due to its direct AC-AC conversion, high power density, and bidirectional power flow. However, implementation... Read More about Application of a Single-Phase Matrix Converter for Electric Vehicle Charging.

S-band elliptical–cylindrical cavity resonator for material processing (2022)
Journal Article
Rodriguez, J., Ampuero, J., Valderrama, W., Buttress, A., Dodds, C., Kingman, S., & Carrasco, H. (2022). S-band elliptical–cylindrical cavity resonator for material processing. Microwave and Optical Technology Letters, 64(12), 2160-2164. https://doi.org/10.1002/mop.33431

The development of an elliptical–cylindrical cavity for microwave thermal processing of materials at high electric field strengths is reported. The design methodology based on numerical modeling is validated by experimental measurements. The system c... Read More about S-band elliptical–cylindrical cavity resonator for material processing.

Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies (2022)
Journal Article
Durán-Jiménez, G., Rodriguez, J., Kostas, E. T., Stevens, L. A., Lozada-Rodríguez, L., Binner, E., & Dodds, C. (2022). Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies. Chemical Engineering Journal, 438, Article 135549. https://doi.org/10.1016/j.cej.2022.135549

Microwave has become an attractive technology in the valorisation of renewable biomass and in the mitigation of challenges of climate change. In this work, the synergic effects of coupling microwave and mild conventional heating conditions has been i... Read More about Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies.

Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields (2021)
Journal Article
Altarawneh, S., Al-Harahsheh, M., Buttress, A., Dodds, C., Rodriguez, J., & Kingman, S. (2021). Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields. Journal of Industrial and Engineering Chemistry, 104, 521-528. https://doi.org/10.1016/j.jiec.2021.09.001

Microwave heating of waste electric arc furnace dust (EAFD) for the purpose of its remediation has been studied extensively. However, these studies considered EAFD as a bulk material without addressing either the relative response of its individual c... Read More about Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields.

Experimental evaluation of predictive voltage control for a four‐leg two‐stage matrix converter (2019)
Journal Article
Garcia, C., Rivera, M., Rodriguez, J., & Wheeler, P. (2019). Experimental evaluation of predictive voltage control for a four‐leg two‐stage matrix converter. IET Power Electronics, 12(12), 3077-3084. https://doi.org/10.1049/iet-pel.2018.6378

Model predictive control (MPC) has emerged as a real alternative for the control of different topologies of power converters. In particular, MPC has been successfully applied in matrix converters, significantly reducing the difficulty of control comp... Read More about Experimental evaluation of predictive voltage control for a four‐leg two‐stage matrix converter.

Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation (2018)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Oyarzun, J. R., Montes-Morán, M. Á., & Binner, E. (2019). Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation. Journal of Molecular Liquids, 277, 663-671. https://doi.org/10.1016/j.molliq.2018.12.143

This work studies the effect of microwaves in the synthesis of carbon adsorbents using pecan nutshell biomass as a precursor in a hybrid multimode microwave cavity avoiding the utilization of chemical activation or susceptors. The dielectric properti... Read More about Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation.

Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment (2018)
Journal Article
Buttress, A., Rodriguez, J., Ure, A., Ferrari, R., Dodds, C., & Kingman, S. (2019). Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment. Minerals Engineering, 131, 407-419. https://doi.org/10.1016/j.mineng.2018.11.025

© 2018 Demand for high purity silica used in component manufacture is set to outstrip current supply in the near future. As such, alternative processing routes to feed-stock materials suitable for use in lighting and solar cell fabrication are requir... Read More about Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment.

Cascaded model predictive speed control of a permanent magnet synchronous machine (2016)
Presentation / Conference Contribution
Garcia, C., Silva, C. A., Rodriguez, J., & Zanchetta, P. Cascaded model predictive speed control of a permanent magnet synchronous machine. Presented at 42nd Annual Conference of IEEE Industrial Electronics Society (IECON 2016)

This paper proposes a model predictive speed control of a permanent magnet synchronous machine (PMSM). The control scheme has a cascade architecture, where the inner loop uses a finite set model predictive control scheme (FS-MPC) for the electrical s... Read More about Cascaded model predictive speed control of a permanent magnet synchronous machine.

Millimeter-Wave Conical Fresnel Zone Lens of Flat Dielectric Rings (2014)
Journal Article
P. Kamburov, L., M. Rodriguez, J., R. Urumov, J., & D. Hristov, H. (2014). Millimeter-Wave Conical Fresnel Zone Lens of Flat Dielectric Rings. IEEE Transactions on Antennas and Propagation, 62(4), 2140-2148. https://doi.org/10.1109/tap.2014.2303165

Conical in shape Fresnel zone (CFZ) lens of flat dielectric rings is introduced and studied in this research. It is contrasted to a plane Fresnel zone (PFZ) lens, a CFZ lens of conical rings and a refractive plane-hyperbolic (PH) lens. For the same a... Read More about Millimeter-Wave Conical Fresnel Zone Lens of Flat Dielectric Rings.

Subwavelength resolution of conical Fresnel zone lens (2013)
Presentation / Conference Contribution
Rodriguez, J. M., Carrasco, H., & Hristov, H. D. (2013, July). Subwavelength resolution of conical Fresnel zone lens. Presented at 2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), Lake Buena Vista, Florida, USA

Cone-shape Fresnel zone lens of flat dielectric rings (2013)
Presentation / Conference Contribution
Hristov, H. D., Rodriguez, J. M., Kamburov, L. P., & Urumov, J. R. (2013, July). Cone-shape Fresnel zone lens of flat dielectric rings. Presented at 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), Orlando, Florida, USA

Design Equation for Multidielectric Fresnel Zone Plate Lens (2012)
Journal Article
Hristov, H. D., & Rodriguez, J. M. (2012). Design Equation for Multidielectric Fresnel Zone Plate Lens. IEEE Microwave and Wireless Components Letters, 22(11), 574-576. https://doi.org/10.1109/lmwc.2012.2224099

A structural design equation for multidielectric Fresnel zone plate (ZP) lens is outlined in this letter. Based on this equation, multidielectric ZP lenses/lens antennas are studied numerically in the 30-50 GHz microwave band and contrasted to an ord... Read More about Design Equation for Multidielectric Fresnel Zone Plate Lens.

The grooved-dielectric Fresnel zone plate: An effective terahertz lens and antenna (2012)
Journal Article
Hristov, H., Rodriguez, J., & Grote, W. (2012). The grooved-dielectric Fresnel zone plate: An effective terahertz lens and antenna. Microwave and Optical Technology Letters, 54(6), 1343-1348. https://doi.org/10.1002/mop.26812

A number of microwave and terahertz grooved-dielectric Fresnel zone plate (FZP) and ordinary lenses and antennas are studed and compared numerically. Although the microwave (38 GHz) eight-step FZP lens is certainly inferior, the corresponding teraher... Read More about The grooved-dielectric Fresnel zone plate: An effective terahertz lens and antenna.