Dr. Jesus David Vasquez-Plaza
Oak Ridge National Laboratory, Oak Ridge, Florida, USA
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Academic Career Length
9Years (2018-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications4 June 2021 in IEEE Access
Journal Article
CSChinmay Shah
Chinmay Shah
Jesus David Vasquez-Plaza
Daniel D. Campo-Ossa
Juan PatarroyoNGNischal Guruwacharya
Nischal Guruwacharya
PCPhylicia Cicilio
Phylicia Cicilio +7
In response to national and international carbon reduction goals, renewable energy resources like photovoltaics (PV) and wind, and energy storage technologies like fuel-cells are being extensively integrated in electric grids. All these energy resources require power electronic converters (PECs) to interconnect to the electric grid. These PECs have different response characteristics to dynamic stability issues compared to conventional synchronous generators. As a result, the demand for validated models to study and control these stability issues of PECs has increased drastically. This paper provides a review of the existing PEC model types and their applicable uses. The paper provides a description of the suitable model types based on the relevant dynamic stability issues. Challenges and benefits of using the appropriate PEC model type for studying each type of stability issue are also presented.
Journal Article
Juan PatarroyoJesus David Vasquez-Plaza
Fabio AndradeIn this work, a synchronous model for grid-connected and islanded microgrids is presented. The grid-connected model is based on the premise that the reference frame is synchronized with the AC bus. The quadrature component of the AC bus voltage can be cancelled, which allows to express output power as a linear equation for nominal values in the AC bus amplitude voltage. The model for the islanded microgrid is developed by integrating all the inverter dynamics using a state-space model for the load currents. This model is presented in a comprehensive way such that it could be scalable to any number of inverter-based generators using inductor–capacitor–inductor (LCL) output filters. The use of these models allows designers to assess microgrid stability and robustness using modern control methods such as eigenvalue analysis and singular value diagrams. Both models were tested and validated in an experimental setup to demonstrate their accuracy in describing microgrid dynamics. In addition, three scenarios are presented: non-controlled model, Linear-Quadratic Integrator (LQI) power control, and Power-Voltage (PQ/Vdq) droop–boost controller. Experimental results demonstrate the effectiveness of the control strategies and the accuracy of the models to describe microgrid dynamics.
1 August 2018
Conference Paper
JPJuan F. Patarroyo-Montenegro
Juan F. Patarroyo-Montenegro
JSJohn E. Salazar-Duque
John E. Salazar-Duque
SASergio I. Alzate-Drada
Sergio I. Alzate-Drada
Jesus David Vasquez-PlazaFAFabio Andrade
Fabio Andrade
During the last decade, the use of renewable energy sources is dramatically increasing around the world. However, countries like the Puerto Rico depend in their majority on energy sources like petroleum or natural gas. To encourage the implementation of distributed generation systems using renewable energy sources, the Sustainability Energy Center (SEC) in the University of Puerto Rico at Mayagüez (UPRM) developed an AC Microgrid Testbed that will allow students and community to have a deeper understanding about the use of this type of technologies. In this work, the design and implementation of this AC Microgrid Testbed is presented. Experimental results of Voltage Proportional-Resonant Control for AC inverters are presented as well. Results from this development show adequate performance of the testbed and demonstrate its modularity of being used with different types of energy sources, filters, and topologies.
18 October 2020
Conference Paper
Jesus David Vasquez-PlazaJPJuan F. Patarroyo-Montenegro
Juan F. Patarroyo-Montenegro
Daniel D. Campo-OssaESEnrique A Sanabria-Torres
Enrique A Sanabria-Torres
ALAndres F. Lopez-Chavarro
Andres F. Lopez-Chavarro
FAFabio Andrade
Fabio Andrade
This paper presents a formal methodology for the analysis and design for discrete-time proportional-resonant classic (PR) controllers applied to a single-phase DC/AC converter using Sisotool/Matlab. This tool allows observing the response of the system before being simulated or experimentally implemented. Also, it allows to integrate and visualize the classical control theory requirements (overshoot, settling time, etc.) with the design of Proportional Resonant (PR) controllers. Simulations results demonstrate the effectiveness of the methodology presented for the design of PR controllers.
13 September 2023 in IEEE Access
Journal Article
Jesus David Vasquez-PlazaJSJose M. Ramirez Scarpetta
Jose M. Ramirez ScarpettaTHTimothy Hansen
Timothy HansenRTReinaldo Tonkoski
Reinaldo TonkoskiFabio AndradeSystem dynamic models for hundreds of inverter-based generators are necessary to represent the whole behavior and to perform stability analysis at the transmission and distribution level in the electric power system. Aggregated models such as DER_A and PVD1 have been proposed, however, they have many parameters and there is currently no methodology to parameterize them. Many of the parameterization methods for this type of model require only smooth functions. Because these models have non-linear blocks, such as saturation and dead-band functions, this paper proposes a smooth mathematical representation of the DER_A aggregated model. The proposed smooth mathematical representation uses a novel smooth function proposed to represent the saturation function and further uses a proposed method to obtain a smooth dead-band function from the proposed smooth saturation function. Finally, the impact of the use of smooth functions on the dynamics of the DER_A model states is experimentally presented and it is also demonstrated by means of electrical signals that the proposed smooth mathematical representation can represent the dynamics of the aggregated DER_A model, paving a way for future research on parameter identification and stability assessment of the aggregated inverter-based generation models.
Journal Article
Jesus David Vasquez-PlazaACAndres Felipe Lopez Chavarro
Andres Felipe Lopez ChavarroESEnrique A. Sanabria-Torres
Enrique A. Sanabria-TorresJuan PatarroyoFabio AndradeIn the control of DC/AC switched power converters (SPC), one of the most important aspects to be considered is the selection of the real-time control platform. The real-time control platform must be able to meet the high performance efficiency and regulation requirements of the DC/AC SPC, as these typically operate at switching frequencies in the order of kHz to MHz. For this reason, the hardware characteristics of the ADC and PWM, and the processing capacity of the real-time control platform are of vital importance when implementing advanced digital controllers that maintain voltage and current levels within regulatory standards. In this context, we aimed to perform a comparative study of the computation times of different real-time control platforms when implementing different control strategies for DC/AC switched power converters. We also analyzed the impact of the real-time control platforms on the THD of the voltages generated by the DC/AC switched power converters. With the help of this paper, researchers and developers will have criteria to select which real-time control platform to use in real-time control for DC/AC SPC applications.
About Me
Researcher specializing in converter-dominated power systems, microgrid controls, power electronics, and Hardware-in-the-Loop (HIL) experimentation and validation. He received the B.S. degree in Electronic Engineering from Universidad del Valle, Cali, Colombia, in 2017, and the M.S. and Ph.D. degrees in Electrical Engineering from the University of Puerto Rico at Mayagüez, Mayagüez, in 2020 and 2023, respectively. He was an ORISE Postdoctoral Fellow with the U.S. Army Engineer Research and Development Center, where he worked on electric vehicle charging infrastructure, grid impact analysis, and resiliency studies for remote communities. He also served as a Postdoctoral Researcher with the Sustainable Energy Center (SEC) at the University of Puerto Rico at Mayagüez, focusing on converter-dominated systems, aggregated inverter-based generation, and HIL validation. He is currently a Postdoctoral Research Associate with Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, USA, where his research focuses on grid-interactive controls, real-time simulation, and advanced modeling of power-electronic-dominated systems. His broader interests include renewable energy integration, distributed energy resource modeling, and grid-edge coordination, with a strong emphasis on improving stability, robustness, and resilience in modern power systems. Passionate about mentoring students, fostering diversity in STEM, and driving collaborative research that advances sustainable and reliable energy
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