Andrade Aguero, Ivan Eric
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Andrade Aguero, Ivan Eric
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Andrade Aguero, Ivan Eric
AfiliaciĆ³n principal
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ivan.andrade@umag.cl
ORCID
JerarquĆa acadĆ©mica
Prof. Asistente A
LĆnea de investigaciĆ³n
EnergĆa y Ambiente
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4 resultados
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PublicaciĆ³n DOI 10.23919/epe.2019.8915072Predictive control of a multi-drive solar pumping system2019; ScopusĀ© Citations 1 1 - Some of the metrics are blocked by yourconsent settings
PublicaciĆ³n DOI 10.1109/ica-acca.2018.8609752Alternate arm converter with thyristor-based director switches2018-07-02; ; Pena, RubenThe Modular Multilevel Converter (MMC) is the choice topology for integration of renewable energy power plants into the grid, through submarine HVDC cables and HVDC lines. Notwithstanding, the MMC requires significant large DC storage capacitors to mitigate for the large power pulsations that result from the single-phase AC to DC conversion process in their arms. The Alternate Arm Converter (AAC), which combines MMC arms with conventional valves (Director Switch), has the potential to cut the number of modules to half of that of the conventional MMC. Further, it is capable of blocking DC faults, an appealing feature for future DC networks. However, the AAC incurs higher power losses than conventional MMC. This work proposes the use of thyristors, instead of IGBTs, to implement the DSs of the AAC. This reduces conduction losses in DSs by approximately a half and makes the AAC more comparable to the conventional MMC, in terms of power losses, but with the advantage of reduced DC energy storage requirements. The principle of operation of the AAC, considering thyristor based DSs, is revisited here and a suitable control strategy to demonstrate its basic operation is developed. Proposals are verified through simulation studies using a switching converter model. Results confirm feasibility of proposed thyristor based DS and good performance of the proposed AAC. - Some of the metrics are blocked by yourconsent settings
PublicaciĆ³n DOI 10.1109/ica-acca.2018.8609752Alternate arm converter with thyristor-based director switches2018-07-02; ; Pena, RubenThe Modular Multilevel Converter (MMC) is the choice topology for integration of renewable energy power plants into the grid, through submarine HVDC cables and HVDC lines. Notwithstanding, the MMC requires significant large DC storage capacitors to mitigate for the large power pulsations that result from the single-phase AC to DC conversion process in their arms. The Alternate Arm Converter (AAC), which combines MMC arms with conventional valves (Director Switch), has the potential to cut the number of modules to half of that of the conventional MMC. Further, it is capable of blocking DC faults, an appealing feature for future DC networks. However, the AAC incurs higher power losses than conventional MMC. This work proposes the use of thyristors, instead of IGBTs, to implement the DSs of the AAC. This reduces conduction losses in DSs by approximately a half and makes the AAC more comparable to the conventional MMC, in terms of power losses, but with the advantage of reduced DC energy storage requirements. The principle of operation of the AAC, considering thyristor based DSs, is revisited here and a suitable control strategy to demonstrate its basic operation is developed. Proposals are verified through simulation studies using a switching converter model. Results confirm feasibility of proposed thyristor based DS and good performance of the proposed AAC.ScopusĀ© Citations 5 2 - Some of the metrics are blocked by yourconsent settings
PublicaciĆ³n DOI 10.1109/tla.2018.8789555The Asymmetric Alternate Arm Converter: A Compact Voltage Source Converter Design for HVDC2018-9; ; Pena, R.The Modular Multilevel Converter (MMC) has become one of the most practical topologies for integration of renewable energy power plants into the grid, through submarine HVDC cables and HVDC lines. Nonetheless, the MMC requires significant large DC storage capacitors to mitigate for large power, low frequency pulsations due to the single-phase like AC to DC conversion process in their arms. This work addresses the recently introduced Asymmetric Alternate Arm Converter, a hybride MMC topology which uses modular converter arms only on the lower side of the main converter whereas the upper side uses only standard ON-OFF valves topology. This converter is similar to the Alternate Arm Converter (AAC) but dispenses of the modules on the upper side and of the director switch on the lower side. Like the AAC, the Asymmetric AAC offers a significant reduction in DC energy storage requirements and in the number of modules. In addition, the Asymmetric AAC offers a less restricted operation than the AAC, in terms of operating over a wide range of AC to DC voltage ratio, and the possibility of achieving both distortion-free AC current and ripple-free DC current. The principle of operation of the Asymmetric AAC is revisited here and a suitable control strategy to demonstrate its operation is developed. In addition, requirements for energy storage, voltage and current rating of converter modules and converter losses are examined by means of simplified analyses. Proposals are verified through simulation studies and experiments conducted on a low power prototype having three H-bridge modules per arm. Results confirm good operation of the proposed converter and control scheme.ScopusĀ© Citations 4 2