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dc.contributor.advisorOrtiz-Rivera, Eduardo I.
dc.contributor.authorDarbali-Zamora, Rachid
dc.date.accessioned2020-02-18T20:49:24Z
dc.date.available2020-02-18T20:49:24Z
dc.date.issued2019-12-10
dc.identifier.urihttps://hdl.handle.net/20.500.11801/2570
dc.description.abstractReal-Time (RT) simulation introduces fast computational capabilities with high-fidelity mathematical models to study large or complex operational systems in the aerospace, automotive, energy, or other domains. The advantage of conducting power simulations in RT is that the dynamic power behavior of physical devices can be represented in large power simulations that would normally not be able to be studied. When physical devices are interconnected with power system simulations through power amplifiers and data acquisition systems, it is called Power Hardware-in-the-Loop (PHIL). A situation where PHIL has proven to be very useful is in voltage regulation studies in distribution systems utilizing a variety of distributed energy sources, such as photovoltaic (PV) inverters. This case is difficult to analyze solely using power hardware experiments or power simulations due to the complex interactions between PV inverter technologies with advanced grid-support functions and power systems. Distribution circuits with high penetrations of renewable energy resources may experience wide voltage deviations because of changing active power flows from distributed energy sources. This project provides a performance comparison between three different voltage regulation control strategies (VVC, ESC and PSO) implemented on a RT PHIL platform. A PV inverter was used as the hardware component of the PHIL setup. The selected control strategies were tested on two reduced distribution models based on real existing systems provided by utility companies from New Mexico and Massachusetts. From these results VVC provided voltage regulation without communications. In low communication environments, ESC could be used to track optimal reactive power setpoints, but it was relatively slow and caused voltage perturbation. PSO was a viable control strategy for voltage regulation if enough telemetry is made available.en_US
dc.description.abstractLa simulación en Tiempo-Real (TR) introduce capacidades computacionales rápidas con modelos matemáticos de alta fidelidad para estudiar sistemas operativos grandes o complejos en el ámbito aeroespacial, automotriz, energético entre otros. La ventaja de realizar simulaciones de potencia en TR es que el comportamiento dinámico de potencia de los dispositivos físicos se puede representar en simulaciones de alta potencia que normalmente no podrían estudiarse. Cuando los dispositivos físicos están interconectados a la simulación del sistema de potencia a través de amplificadores de potencia y sistemas de adquisición de datos, se denomina Equipo-de-Potencia-en-el-Lazo (EPEL). Una situación en la que EPEL ha demostrado ser muy útil es en estudios de regulación de voltaje en sistemas de distribución que utilizan varias fuentes de energía, como inversores fotovoltaicos. Este caso es difícil de analizar únicamente utilizando experimentos de equipo o simulaciones de potencia debido a la compleja interacción de las tecnologías con funciones avanzadas de apoyo de red. Los sistemas de distribución con altas penetraciones de energía renovable pueden experimentar grandes desviaciones de voltaje debido a los cambios en los flujos de potencia activa. Este proyecto propone realizar una comparación de rendimiento entre tres estrategias diferentes de control de regulación de voltaje implementadas en una plataforma TR EPEL. Los inversores fotovoltaicos se utilizaron como componente de equipo de la configuración EPEL. Las estrategias de control seleccionadas se prueban en dos modelos de distribución basados en sistemas reales proveídos por empresas de servicios públicos de Nuevo México y Massachusetts. A partir de estos resultados, VVC proporcionó regulación de voltaje sin comunicaciones. ESC pudo rastrear los puntos de ajuste óptimos de potencia reactiva, pero era relativamente lento y causaba perturbaciones en el voltaje. PSO era una estrategia de control viable para la regulación de voltaje si se dispone de suficiente telemetría.en_US
dc.description.sponsorshipOhio State University (OSU); Argonne National Laboratory (ANL); Sandia National Laboratories (SNL); Pacific Northwest National Laboratories (PNNL); US Department of Energy (DOE); Consortium for Integrating Energy Systems in Engineering and Science Education (CIESESE); Puerto Rico NASA Space Grant Consortium (PRSGC): Transformational Initiative for Graduate Education and Research (TIGER), Title V Program, Part B, PPOHA (Promoting Postbaccalaureate Opportunities for Hispanic Americans) US Dept of Education (#P031M140035) ENERGISE project under DOE# 32931.en_US
dc.language.isoenen_US
dc.subjectPV invertersen_US
dc.subjectGrid-Supporten_US
dc.subjectDistribution Systemsen_US
dc.subjectPower Hardware-in-the-Loopen_US
dc.subject.lcshPhotovoltaic power systemsen_US
dc.subject.lcshHardware in the loop simulationen_US
dc.subject.lcshElectric power systems -- Computer simulationen_US
dc.subject.lcshElectric invertersen_US
dc.subject.lcshReal-time data processingen_US
dc.subject.lcshPhotovoltaic power generationen_US
dc.titlePhotovoltaic inverter voltage regulation performance evaluation using a power hardware-in-the-loop setup on distribution system feedersen_US
dc.typeDissertationen_US
dc.rights.holder(c) 2019 Rachid Darbali-Zamoraen_US
dc.contributor.committeeAponte-Bezares, Erick E.
dc.contributor.committeeSerrano-Rivera, Guillermo J.
dc.contributor.committeeCedeño-Maldonado, Jose R.
dc.contributor.representativeSuárez, Oscar Marcelo
thesis.degree.levelPh.D.en_US
thesis.degree.disciplineElectrical Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.description.graduationSemesterSpringen_US
dc.description.graduationYear2020en_US


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    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a graduate degree at UPR-Mayagüez.

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(c) 2019 Rachid Darbali-Zamora
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