Efrain O'Neill | University of Puerto Rico (original) (raw)
Papers by Efrain O'Neill
OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), Oct 1, 2019
2006 IEEE PES Power Systems Conference and Exposition, 2006
... E. O'Neill-Carrillo and AA Irizarry-Rivera are with the Electrical and Computer Engineeri... more ... E. O'Neill-Carrillo and AA Irizarry-Rivera are with the Electrical and Computer Engineering ... PO Box 5937, Mayaguez, PR 00681 USA (e-mail: oneill@ieee.org and agustin@ece.uprm ... Purdue University is an excellent example of the benefits service learning offers [2]. Although it ...
Environmental Management, Sustainable Development and Human Health, 2008
OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), Oct 1, 2019
IEEE Transactions on Power Delivery, 1999
Typically, the modeling of highly varying, nonlinear loads such as electric arc furnaces has invo... more Typically, the modeling of highly varying, nonlinear loads such as electric arc furnaces has involved stochastic techniques. This paper presents the use of chaotic dynamics to describe the operation of nonlinear loads. Included is a discussion of the Lyapunov exponents, a measure of chaotic behavior. The alternate approach is applied to electric arc furnaces. A tuning mode is described to develop the parameters of a chaotic model. This model is trained to have time and frequency responses that are tuned to match the current from the arc fumace under study. The simulated data are compared to actual arc furnace data to validate the model. This model is used to assess the impact of various highly varying nonlinear loads that exhibit chaos in power systems.
Proceedings of the 37th Annual North American Power Symposium, 2005., 2005
With the negative climate impact of fossil fuel power generation and the requirement of global po... more With the negative climate impact of fossil fuel power generation and the requirement of global policy to shift towards a green mix of energy production, the investment in renewable energy is an opportunity in developing countries. However, poor economy associated with limited income, funds availability, and regulations governing project funding and development are key factors that challenge investors in the energy sector. Given the various power generation resources, including renewables, it is necessary to evaluate the possible power generation investment options from an economic perspective. To realize this objective, solar PV, wind and diesel power generations are economically compared, considering the incremental rate of return and incremental benefit to cost ratio techniques. The alternative investment options of distributed generation technologies are evaluated for Maharashtra, India under different depreciation methods, and the effect of the latter on selecting the best investment candidate is investigated. The paper also conducts sensitivity analysis to examine the impact of capital cost, operation and maintenance cost, and fuel cost variations on the selection decision considering a comparison of the different general projects' cash flow structures discussed in the literature. The economic aspects of selecting a project among possible alternatives for an investment in the power sector are analyzed, and the presented review provides comprehensive comparisons with respect to the literature approaches. The results reveal that, in the benchmark case study, the PV project is rejected and disregarded from further comparisons with other candidate projects since its equity internal rate of return (10.25%) is less than the minimum accepted rate of return, leaving the selection between wind and diesel energy projects. The study reveals that the incremental rates of return under such a comparison are 37.88%, 45.94% and 37.50% when MACRS, declining balance and straight line depreciations techniques are applied, respectively. Thus, the wind energy project is the favored option in this case. For the economic assessment of other case studies, the application of both sensitivity analysis on the capital cost and operation and maintenance cost and literature approaches to structure the projects reveal that wind energy for Maharashtra, India is a more attractive and feasible option compared to other distribution generation projects, while diesel is only considered to be a good option when its fuel cost is reduced by 5%. Finally, the paper highlights policy implications that can influence the decision to move towards investment in distributed generation technologies as a future research direction.
Electric Machines & Power Systems, 1999
ABSTRACT
Proceedings Frontiers in Education 35th Annual Conference
The complex interaction between engineering, technology, social needs and values challenges engin... more The complex interaction between engineering, technology, social needs and values challenges engineering education programs to prepare new professionals to respond to real engineering problems with more than technical skills. The goal of the Electrical and Computer Engineering (ECE) Department at the University of Puerto Rico-Mayagüez is to develop a full-scale program of Ethics Across the Engineering Curriculum. As a first step we have developed an Ethics Module for ECE students. Ethics workshops were given to students of Pattern Recognition and Power Engineering. Instruments were developed to assess student learning and perception about the ethical and social implications in engineering. At the end of each workshop, participants completed the assessment instrument. The assessment instruments were used to evaluate the impact of the Ethics Module in two aspects: the learning process of the students and their perception, and the impact on their ethical conduct.
COMPEL 2000. 7th Workshop on Computers in Power Electronics. Proceedings (Cat. No.00TH8535)
Abstract This paper describes the development of software tools for the analysis of chaos in powe... more Abstract This paper describes the development of software tools for the analysis of chaos in power electronics systems. This project was motivated by potential contributions of chaos theory in the design, analysis and control of power electronics circuits. Nonlinear analysis ...
2009 IEEE/PES Power Systems Conference and Exposition, 2009
This paper presents how power quality activities were used as catalyst for the development and re... more This paper presents how power quality activities were used as catalyst for the development and renovation of power engineering research and education at the University of Puerto Rico-Mayaguez. The ultimate goal was to provide students with opportunities to learn about power quality and related areas, as well as training future professionals in the energy field. The multidisciplinary nature of power quality offered a unique opportunity to renovate the curriculum and inspire students to engage in energy systems research. Research activities centered on the power quality impact of integrating alternate energy sources such as photovoltaic systems in the distribution grid. The work also entailed consideration of energy policy related to interconnection issues. Education activities included an undergraduate research program, demonstrations to high school students, three courses revised or created, and an Energy Systems Seminar Series. All activities contributed to the national debate on energy and to Puerto Rico's particular energy challenges.
2009 IEEE Power & Energy Society General Meeting, 2009
The Puerto Rico Energy Affairs Administration, motivated by the great potential of renewable ener... more The Puerto Rico Energy Affairs Administration, motivated by the great potential of renewable energy in the Island, commissioned a study to the University of Puerto Rico to identify achievable and realistic renewable energy targets for the Island. The study was intended to summarize the technical requirements of a number of renewable energy technologies in the island and the potential generation
Proceedings of the 2010 IEEE International Symposium on Sustainable Systems and Technology, 2010
Transitioning to an infrastructure that integrates a more substantial portion of renewable energy... more Transitioning to an infrastructure that integrates a more substantial portion of renewable energy sources into the larger energy portfolio is not effortless or without sacrifice; it has economic, technical as well as social challenges related to the decisions, choices and consequences in trying to establish new energy systems. Those decisions, choices and consequences are highly dependent on the social, economical
2012 IEEE International Symposium on Sustainable Systems and Technology (ISSST), 2012
Existing electric power infrastructures were based on the continuous availability of non-renewabl... more Existing electric power infrastructures were based on the continuous availability of non-renewable fuels that can be stored close to the point of generation. Nevertheless, an increased use of renewable energy in electric power generation requires a paradigm shift in order to create new energy infrastructures and practices better suited for renewable sources. The decisions needed to create this new energy
Proceedings Frontiers in Education 35th Annual Conference
... [3] Luis O. Jimenez, Efrain O'Neill-Carrillo, Eddie ... Curricular Components Tr... more ... [3] Luis O. Jimenez, Efrain O'Neill-Carrillo, Eddie ... Curricular Components Trends Recommended Actions Courses C r. Comments Av. Cr. Short Term Medium Term Long Term INGL 3101-02 Basic course in English 6 Many institutions require between 3 to 6 credits in English. ...
2009 39th IEEE Frontiers in Education Conference, 2009
Academic Integrity is a fundamental condition for the mission of any University. Ethical problems... more Academic Integrity is a fundamental condition for the mission of any University. Ethical problems undermine Academic Integrity and thus the mission of the University. The College of Engineering at the University of Puerto Rico-Mayagüez (UPRM) has developed an Ethics Across the Engineering Curriculum Program as a space for students and professors to connect engineering and its ethical implications. This paper will present the Introductory Freshman module whose objective is to create awareness around the subject of Academic Integrity. At the end of the module, participants complete an assessment instrument. The instrument evaluates the impact of the ethics module on Academic Integrity in two aspects: (i) the learning process and the perception of the students, and (ii) the impact on their ethical awareness and evaluation. This module is part of a strong commitment to social, ethical and global issues that the College of Engineering has made at UPRM.
Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441)
A high quality of power is required in healthcare facilities due to increased use of microprocess... more A high quality of power is required in healthcare facilities due to increased use of microprocessor-based equipment. However, the ability to diminish power quality concerns depends on the limitations imposed by the system under study, especially infrastructure constraints. This paper describes a power quality audit conducted at a medical facility. Voltage and current measured at various points were used to
IEEE PES T&D 2010, 2010
... Renewable generators, storage units and demand response strategies are included in the multio... more ... Renewable generators, storage units and demand response strategies are included in the multiobjective algorithm ... for the development of microgrids include the design of solutions that combine demand side and ... 1] H. Tai and E. Hogain, "Behind the Buzz: Eight smart-grid trends ...
OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), Oct 1, 2019
2006 IEEE PES Power Systems Conference and Exposition, 2006
... E. O'Neill-Carrillo and AA Irizarry-Rivera are with the Electrical and Computer Engineeri... more ... E. O'Neill-Carrillo and AA Irizarry-Rivera are with the Electrical and Computer Engineering ... PO Box 5937, Mayaguez, PR 00681 USA (e-mail: oneill@ieee.org and agustin@ece.uprm ... Purdue University is an excellent example of the benefits service learning offers [2]. Although it ...
Environmental Management, Sustainable Development and Human Health, 2008
OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), Oct 1, 2019
IEEE Transactions on Power Delivery, 1999
Typically, the modeling of highly varying, nonlinear loads such as electric arc furnaces has invo... more Typically, the modeling of highly varying, nonlinear loads such as electric arc furnaces has involved stochastic techniques. This paper presents the use of chaotic dynamics to describe the operation of nonlinear loads. Included is a discussion of the Lyapunov exponents, a measure of chaotic behavior. The alternate approach is applied to electric arc furnaces. A tuning mode is described to develop the parameters of a chaotic model. This model is trained to have time and frequency responses that are tuned to match the current from the arc fumace under study. The simulated data are compared to actual arc furnace data to validate the model. This model is used to assess the impact of various highly varying nonlinear loads that exhibit chaos in power systems.
Proceedings of the 37th Annual North American Power Symposium, 2005., 2005
With the negative climate impact of fossil fuel power generation and the requirement of global po... more With the negative climate impact of fossil fuel power generation and the requirement of global policy to shift towards a green mix of energy production, the investment in renewable energy is an opportunity in developing countries. However, poor economy associated with limited income, funds availability, and regulations governing project funding and development are key factors that challenge investors in the energy sector. Given the various power generation resources, including renewables, it is necessary to evaluate the possible power generation investment options from an economic perspective. To realize this objective, solar PV, wind and diesel power generations are economically compared, considering the incremental rate of return and incremental benefit to cost ratio techniques. The alternative investment options of distributed generation technologies are evaluated for Maharashtra, India under different depreciation methods, and the effect of the latter on selecting the best investment candidate is investigated. The paper also conducts sensitivity analysis to examine the impact of capital cost, operation and maintenance cost, and fuel cost variations on the selection decision considering a comparison of the different general projects' cash flow structures discussed in the literature. The economic aspects of selecting a project among possible alternatives for an investment in the power sector are analyzed, and the presented review provides comprehensive comparisons with respect to the literature approaches. The results reveal that, in the benchmark case study, the PV project is rejected and disregarded from further comparisons with other candidate projects since its equity internal rate of return (10.25%) is less than the minimum accepted rate of return, leaving the selection between wind and diesel energy projects. The study reveals that the incremental rates of return under such a comparison are 37.88%, 45.94% and 37.50% when MACRS, declining balance and straight line depreciations techniques are applied, respectively. Thus, the wind energy project is the favored option in this case. For the economic assessment of other case studies, the application of both sensitivity analysis on the capital cost and operation and maintenance cost and literature approaches to structure the projects reveal that wind energy for Maharashtra, India is a more attractive and feasible option compared to other distribution generation projects, while diesel is only considered to be a good option when its fuel cost is reduced by 5%. Finally, the paper highlights policy implications that can influence the decision to move towards investment in distributed generation technologies as a future research direction.
Electric Machines & Power Systems, 1999
ABSTRACT
Proceedings Frontiers in Education 35th Annual Conference
The complex interaction between engineering, technology, social needs and values challenges engin... more The complex interaction between engineering, technology, social needs and values challenges engineering education programs to prepare new professionals to respond to real engineering problems with more than technical skills. The goal of the Electrical and Computer Engineering (ECE) Department at the University of Puerto Rico-Mayagüez is to develop a full-scale program of Ethics Across the Engineering Curriculum. As a first step we have developed an Ethics Module for ECE students. Ethics workshops were given to students of Pattern Recognition and Power Engineering. Instruments were developed to assess student learning and perception about the ethical and social implications in engineering. At the end of each workshop, participants completed the assessment instrument. The assessment instruments were used to evaluate the impact of the Ethics Module in two aspects: the learning process of the students and their perception, and the impact on their ethical conduct.
COMPEL 2000. 7th Workshop on Computers in Power Electronics. Proceedings (Cat. No.00TH8535)
Abstract This paper describes the development of software tools for the analysis of chaos in powe... more Abstract This paper describes the development of software tools for the analysis of chaos in power electronics systems. This project was motivated by potential contributions of chaos theory in the design, analysis and control of power electronics circuits. Nonlinear analysis ...
2009 IEEE/PES Power Systems Conference and Exposition, 2009
This paper presents how power quality activities were used as catalyst for the development and re... more This paper presents how power quality activities were used as catalyst for the development and renovation of power engineering research and education at the University of Puerto Rico-Mayaguez. The ultimate goal was to provide students with opportunities to learn about power quality and related areas, as well as training future professionals in the energy field. The multidisciplinary nature of power quality offered a unique opportunity to renovate the curriculum and inspire students to engage in energy systems research. Research activities centered on the power quality impact of integrating alternate energy sources such as photovoltaic systems in the distribution grid. The work also entailed consideration of energy policy related to interconnection issues. Education activities included an undergraduate research program, demonstrations to high school students, three courses revised or created, and an Energy Systems Seminar Series. All activities contributed to the national debate on energy and to Puerto Rico's particular energy challenges.
2009 IEEE Power & Energy Society General Meeting, 2009
The Puerto Rico Energy Affairs Administration, motivated by the great potential of renewable ener... more The Puerto Rico Energy Affairs Administration, motivated by the great potential of renewable energy in the Island, commissioned a study to the University of Puerto Rico to identify achievable and realistic renewable energy targets for the Island. The study was intended to summarize the technical requirements of a number of renewable energy technologies in the island and the potential generation
Proceedings of the 2010 IEEE International Symposium on Sustainable Systems and Technology, 2010
Transitioning to an infrastructure that integrates a more substantial portion of renewable energy... more Transitioning to an infrastructure that integrates a more substantial portion of renewable energy sources into the larger energy portfolio is not effortless or without sacrifice; it has economic, technical as well as social challenges related to the decisions, choices and consequences in trying to establish new energy systems. Those decisions, choices and consequences are highly dependent on the social, economical
2012 IEEE International Symposium on Sustainable Systems and Technology (ISSST), 2012
Existing electric power infrastructures were based on the continuous availability of non-renewabl... more Existing electric power infrastructures were based on the continuous availability of non-renewable fuels that can be stored close to the point of generation. Nevertheless, an increased use of renewable energy in electric power generation requires a paradigm shift in order to create new energy infrastructures and practices better suited for renewable sources. The decisions needed to create this new energy
Proceedings Frontiers in Education 35th Annual Conference
... [3] Luis O. Jimenez, Efrain O'Neill-Carrillo, Eddie ... Curricular Components Tr... more ... [3] Luis O. Jimenez, Efrain O'Neill-Carrillo, Eddie ... Curricular Components Trends Recommended Actions Courses C r. Comments Av. Cr. Short Term Medium Term Long Term INGL 3101-02 Basic course in English 6 Many institutions require between 3 to 6 credits in English. ...
2009 39th IEEE Frontiers in Education Conference, 2009
Academic Integrity is a fundamental condition for the mission of any University. Ethical problems... more Academic Integrity is a fundamental condition for the mission of any University. Ethical problems undermine Academic Integrity and thus the mission of the University. The College of Engineering at the University of Puerto Rico-Mayagüez (UPRM) has developed an Ethics Across the Engineering Curriculum Program as a space for students and professors to connect engineering and its ethical implications. This paper will present the Introductory Freshman module whose objective is to create awareness around the subject of Academic Integrity. At the end of the module, participants complete an assessment instrument. The instrument evaluates the impact of the ethics module on Academic Integrity in two aspects: (i) the learning process and the perception of the students, and (ii) the impact on their ethical awareness and evaluation. This module is part of a strong commitment to social, ethical and global issues that the College of Engineering has made at UPRM.
Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441)
A high quality of power is required in healthcare facilities due to increased use of microprocess... more A high quality of power is required in healthcare facilities due to increased use of microprocessor-based equipment. However, the ability to diminish power quality concerns depends on the limitations imposed by the system under study, especially infrastructure constraints. This paper describes a power quality audit conducted at a medical facility. Voltage and current measured at various points were used to
IEEE PES T&D 2010, 2010
... Renewable generators, storage units and demand response strategies are included in the multio... more ... Renewable generators, storage units and demand response strategies are included in the multiobjective algorithm ... for the development of microgrids include the design of solutions that combine demand side and ... 1] H. Tai and E. Hogain, "Behind the Buzz: Eight smart-grid trends ...