Papers by Jacobo Aguillon-Garcia
Linear control of a power factor correction rectifier in half-bridge configuration
This paper presents a detailed analysis of a single phase high power factor boost half-bridge rec... more This paper presents a detailed analysis of a single phase high power factor boost half-bridge rectifier (RPFU-HBB). The purpose of this work is to achieve a unity power factor with tight-regulated output voltage. Using the experimental prototype for 120 Vrms input voltage, output power 80W and output voltage of 450V; a power factor of 0.99 and total harmonic distortion of 2.5% was obtained. In order to eliminate the unbalance voltage of the two output capacitors a special control scheme was developed. Modeling, theoretical linearization around the operating point of the RPFU-HBB, design considerations of the current controller output voltage by means of average current method and experimental work tested through simulation model RPFU-HBB are presented.
A 96% efficient, 3kW ZVS Three-phase PWM converter for green server power supplies
Greener energy strategies are necessary to reduce carbon dioxide emissions. At IT centers, an ele... more Greener energy strategies are necessary to reduce carbon dioxide emissions. At IT centers, an element which is suitable for energy management is the server's Power Supply Unit (PSU). Currently, conventional low-voltage high-current DC/DC converters comply with the international standard at 1.5kW range. Further than this level the architecture losses become considerably larger. To handle the continual growth on data centers' power consume, this work proposes a High-Power-Efficiency Three-phase Zero Voltage Switching (ZVS) DC/DC Converter associated with a Positive Double-Star Active Rectifier with a balanced reduced-current galvanic stage. Operating stages, topology analysis, and experimental results for a 3kW prototype with a 96.86% of efficiency at half the output power load are presented.
Energy Scenarios Due to Southern Pine Beetle Outbreak in Honduras
Examination for a symmetric-flux ferrite core for three-phase converter applications
For galvanic isolation of a three-phase power supply, the common choice for cost and volume is th... more For galvanic isolation of a three-phase power supply, the common choice for cost and volume is the three-legged core. Unfortunately this type of core has an inherent power flux asymmetry attributable to the core geometry. This work focuses on a singular geometrical symmetric-flux core, which naturally solve asymmetry problem due to equal mutual impedances between phases. Magnetic circuit theory, finite-element
A high efficiency fluorescent lamp electronic ballast design
This paper presents the design and implementation of an electronic ballast for powering a fluores... more This paper presents the design and implementation of an electronic ballast for powering a fluorescent lamp. The purpose of this work is to improve the efficiency of the ballast by implementing a Series Resonant Inverter (SRI) in half-bridge configuration instead classic Series-Parallel Resonant (SPRI); in order to allow to provide the voltage steady state of the lamp. By other hand, this DC-AC converter will supply the voltage lamp ignition. Results on the proposed experimental prototype, using a fluorescent lamp of 32W, shows a better efficiency compared to traditional SPRI configurations.
Soft-Switching Multi-Level Energy Recovery Circuit of Single Driver for Plasma Display Panel
Soft-Switching Multi-Level Energy Recovery Circuit of Single Driver for Plasma Display PanelJacob... more Soft-Switching Multi-Level Energy Recovery Circuit of Single Driver for Plasma Display PanelJacobo Aguillon-Garcia Gun-Woo Moon ... _~ ~~~( 22 ERC switches (MS_ERC)22Ron-'ERC T _T / f -6Z 2Z/ R l # devices /32z2 Z t ~V -T -f Ron E.RCs /16Z rV o FR / 2 T Ron ERC| ...
IEEE Transactions on Industrial Electronics, Aug 1, 2011
Disturbance of the climate due to greenhouse gases is the most unsafe and complicated of all the ... more Disturbance of the climate due to greenhouse gases is the most unsafe and complicated of all the ecological problems. The main cause is the emission of carbon dioxide from fossil fuels, which produces around 80% of the world's energy. Consequently, energy strategies are mandatory in reducing the total carbon dioxide emanations. At the data centers, one key element that is suitable for energy management is the server's power supply unit (PSU). The conventional PSU architecture (disregards the power factor correction stage) is based on the conventional low-voltage high-current dc-dc converter which accomplishes the international standards in a range around 1.5 kW. Beyond that power rating, the imposed losses become significantly high. To cope up with the constant increase in information technology demands, this paper proposes a three-phase zero voltage switching dc-dc converter associated with a positive double-star active rectifier and a reduced current unbalance transformer for high-powerdensity-efficiency energy conversion. The operating stages, topology analysis, and experimental results for a 1.2-kW prototype with 97% efficiency at half power load are presented. Index Terms-DC-DC power conversion, energy management, three phase, zero voltage switching (ZVS).
Low Cost FPGA-based Control Strategy for a Single Phase Stacked Multicell Converter
전력전자학술대회논문집, Jul 1, 2005
Multilevel converters have emerged like a new strategy for energy conversion from medium power to... more Multilevel converters have emerged like a new strategy for energy conversion from medium power to high power. The main characteristic of the topologies classified as multilevel, is the use of commutation devices connected in series, allowing the distribution of the voltage and reducing stress in the commutation switches. Stacked Multicell Converter (SMC), is classified as single-phase voltage source inverter (VSI). Due to the fact, the SMC generates a signal of alternating current of several levels of voltage of direct current. The following work will demonstrate the flexibility of the above mentioned topology using a low cost control circuit architecture.
High-power-density three-phase converter utilizing a balanced-flux transformer core
Page 1. High-Power-Density Three-phase Converter Utilizing a Balanced-Flux Transformer Core ... T... more Page 1. High-Power-Density Three-phase Converter Utilizing a Balanced-Flux Transformer Core ... Therefore, a three-phase soft-switching dc-dc converter associated with a three-phase wye-wye transformer and a triple version of the hybridge rectifier is proposed. ...
Low Cost IGBT-Based Single-Sided Plasma Display Panel Driver
Plasma display panel (PDP), has many desirable advantages over other display technologies and at ... more Plasma display panel (PDP), has many desirable advantages over other display technologies and at the moment is expected to be the most promising flat panel display [1, 2], Due to the inherent capacitive characteristics between surface discharging electrodes X-Y and between opposed addressing electrodes within the PDP as well (fig. 1); high displacement current occurs during charging and discharging, causing
This paper describes the research program devoted to the study of electronic components and its f... more This paper describes the research program devoted to the study of electronic components and its function in the power conversion systems to be used on deepwater applications. Frequent approaches for operation of electronic equipment include: Hard shell enclosures maintained at normal air pressure, soft shell with a pressure compensating fluid and free-flooded equipment. This article discusses the last two techniques taking in account the overall cost. In those viewpoints the characteristics and the influence of high hydrostatic pressure on the components and incompatibility of the components with the immersion fluid (if needed), will be presented. Guidelines necessary to alleviate anticipated and known problem areas are proposed. I.
High‐Efficiency DC‐DC Converter for Large Input‐Voltage Fluctuations in Solar Applications
Chinese Journal of Electronics, Jul 1, 2015
In the solar energy systems the solar irradiance variation is partially engaged, limiting the con... more In the solar energy systems the solar irradiance variation is partially engaged, limiting the converter’s transformation rate for a certain input amount and leaving the rest of energy unconverted. In order to utilize at its maximum the energy provided from a Photovoltaic (PVP) system, this manuscript proposed a topology that can cope with marginal input voltage variations from 60V(DC) up to 1050V(DC) for a steady output voltage of 700V(DC). This output voltage value is suitable for any interlink post-regulation architecture. Based on previous observations, this paper presents a wide-input voltage high-efficiency non-isolated single-control topology. Analysis, operating stages, simulations and experimental results for a 3kW prototype are presented.
Effects of an hourly tariff on the electricity power sector—the Honduran model
Elsevier eBooks, 2023
Energy Scenarios Due to Southern Pine Beetle Outbreak in Honduras
Renewable Energy Technologies
Renewable Energy and Economic Dispatch Integration Within the Honduras Electricity Market
Energy Systems in Electrical Engineering, 2021
A critical aspect of power systems is the generation cost of plants in producing the electrical e... more A critical aspect of power systems is the generation cost of plants in producing the electrical energy required by consumers, this cost will be finally reflected in the monthly consumption bill. A nonoptimal dispatch will produce high tariffs while a well-designed dispatch will result in the lowest generation costs and, therefore, the lowest possible tariffs. The purpose of the present study is precisely to design a strategy to find the generation plan that produces the lowest possible costs and then make a comparison between an optimal economic dispatch that considers generation and transmission without energy contracts versus the dispatch that includes the 2017 energy purchase contracts signed by the state of Honduras. To achieve this goal, this study formulates the cost equation, capacity, and transmission line constraints, and then applies the nonlinear programming techniques to solve it.
Linear control of a power factor correction rectifier in half-bridge configuration
2016 IEEE Congreso Argentino de Ciencias de la Informática y Desarrollos de Investigación (CACIDI), 2016
This paper presents a detailed analysis of a single phase high power factor boost half-bridge rec... more This paper presents a detailed analysis of a single phase high power factor boost half-bridge rectifier (RPFU-HBB). The purpose of this work is to achieve a unity power factor with tight-regulated output voltage. Using the experimental prototype for 120 Vrms input voltage, output power 80W and output voltage of 450V; a power factor of 0.99 and total harmonic distortion of 2.5% was obtained. In order to eliminate the unbalance voltage of the two output capacitors a special control scheme was developed. Modeling, theoretical linearization around the operating point of the RPFU-HBB, design considerations of the current controller output voltage by means of average current method and experimental work tested through simulation model RPFU-HBB are presented.
A high efficiency fluorescent lamp electronic ballast design
2016 IEEE Congreso Argentino de Ciencias de la Informática y Desarrollos de Investigación (CACIDI), 2016
This paper presents the design and implementation of an electronic ballast for powering a fluores... more This paper presents the design and implementation of an electronic ballast for powering a fluorescent lamp. The purpose of this work is to improve the efficiency of the ballast by implementing a Series Resonant Inverter (SRI) in half-bridge configuration instead classic Series-Parallel Resonant (SPRI); in order to allow to provide the voltage steady state of the lamp. By other hand, this DC-AC converter will supply the voltage lamp ignition. Results on the proposed experimental prototype, using a fluorescent lamp of 32W, shows a better efficiency compared to traditional SPRI configurations.
High‐Efficiency DC‐DC Converter for Large Input‐Voltage Fluctuations in Solar Applications
Chinese Journal of Electronics, 2015
In the solar energy systems the solar irradiance variation is partially engaged, limiting the con... more In the solar energy systems the solar irradiance variation is partially engaged, limiting the converter’s transformation rate for a certain input amount and leaving the rest of energy unconverted. In order to utilize at its maximum the energy provided from a Photovoltaic (PVP) system, this manuscript proposed a topology that can cope with marginal input voltage variations from 60V(DC) up to 1050V(DC) for a steady output voltage of 700V(DC). This output voltage value is suitable for any interlink post-regulation architecture. Based on previous observations, this paper presents a wide-input voltage high-efficiency non-isolated single-control topology. Analysis, operating stages, simulations and experimental results for a 3kW prototype are presented.
A 96% efficient, 3kW ZVS Three-phase PWM converter for green server power supplies
8th International Conference on Power Electronics - ECCE Asia, 2011
Greener energy strategies are necessary to reduce carbon dioxide emissions. At IT centers, an ele... more Greener energy strategies are necessary to reduce carbon dioxide emissions. At IT centers, an element which is suitable for energy management is the server's Power Supply Unit (PSU). Currently, conventional low-voltage high-current DC/DC converters comply with the international standard at 1.5kW range. Further than this level the architecture losses become considerably larger. To handle the continual growth on data centers' power consume, this work proposes a High-Power-Efficiency Three-phase Zero Voltage Switching (ZVS) DC/DC Converter associated with a Positive Double-Star Active Rectifier with a balanced reduced-current galvanic stage. Operating stages, topology analysis, and experimental results for a 3kW prototype with a 96.86% of efficiency at half the output power load are presented.
Unbalanced voltage effects on a single phase multilevel inverter due to control strategies
2004 10th International Workshop on Computational Electronics (IEEE Cat. No.04EX915)
This work presents two control strategies for a single phase multilevel inverter to demonstrate h... more This work presents two control strategies for a single phase multilevel inverter to demonstrate how affects the natural balance on the flying capacitors to the output voltage. The analyzed topology is based on a stacked multicell converter (SMC), which uses stacks and columns in a matrix configuration to minimize the voltage stress on all semiconductor components. Due to the array
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Papers by Jacobo Aguillon-Garcia