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Julio Hernández Ramirez - IEEE Xplore Author Profile
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Julio Hernández Ramirez

Also published under: Julio Hernández-Ramírez, J. C. Hernández-Ramírez

Publications
9
Citations
15
Publications by Year
20172024
Co-Authors:
Show All Co-Authors (14)
Image of author Julio Hernández Ramirez

Julio Hernández Ramirez

Also published under: Julio Hernández-Ramírez, J. C. Hernández-Ramírez

Affiliation

Autonomous University of San Luis Potosi, MX

Publication Topics

Biography

Julio Hernández-Ramírez received the B.Sc. degree in electrical and automation engineering in 2015, and the M.Sc. degree in electrical engineering in 2017, both from Universidad Autónoma de San Luis Potosí, San Luis Potosí, México, where he is currently working toward the Ph.D. degree in electrical engineering. He worked with the National Center of Energy Control (CENACE) in Mexico City from 2018 to 2019 in the Electrical Studies Unit as a Power System Analyst. His research interests include modeling of renewable energy systems, stability in power systems with power electronic penetration, and electromagnetic transients.(Based on document published on 3 September 2020).
Publications
9
Citations
15
Publications by Year
20172024
Co-Authors:
Show All Co-Authors (14)
Author's Published Works

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Supplementary Loop in BESS Control Scheme for SSO Mitigation in DFIG-Based Wind Farms

Roberto Moreno;Nancy Visairo Cruz;Ciro Alberto A. Núñez Gutiérrez;Julio Hernández Ramirez;Juan Segundo Ramirez

IEEE Latin America Transactions
Year: 2024 | Volume: 22, Issue: 12 | Journal Article |
This paper addresses the problem of subsynchronous oscillations (SSO) in a doubly fed induction generator (DFIG) wind farm originated by its interaction with a series-compensated transmission line. Given its relevance in the system, several solutions and analysis methods have been utilized to tackle this issue. This article proposes an innovative function for a battery energy storage system (BESS)...Show More

Supplementary Loop in BESS Control Scheme for SSO Mitigation in DFIG-Based Wind Farms

Roberto Moreno;Nancy Visairo Cruz;Ciro Alberto A. Núñez Gutiérrez;Julio Hernández Ramirez;Juan Segundo Ramirez

Year: 2024 | Volume: 22, Issue: 12 | Journal Article |

PLL-Based Resonance of a Type-4 Wind Generator in a Series-Compensated Transmission Line

Julio Hernández-Ramírez;J. Segundo-Ramírez

2023 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Year: 2023 | Conference Paper |
Currently, electric power systems have been integrating massive amounts of renewable energy sources based on power electronics converters. This tendency has provoked new stability issues because of the interactions of controls in power electronics with passive elements in the power system. As a result, new oscillation issues have been reported, such as resonance problems in wind turbine generators...Show More

PLL-Based Resonance of a Type-4 Wind Generator in a Series-Compensated Transmission Line

Julio Hernández-Ramírez;J. Segundo-Ramírez

Year: 2023 | Volume: 7 | Conference Paper |

Small-Signal Models of Transmission Lines Oriented to the Impedance-Based Method

Julio Hernández-Ramírez;J. Segundo-Ramírez

2022 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Year: 2022 | Conference Paper |
Cited by: Papers (1)
The increasing penetration of power electronics in electric networks has made the usage of detailed wideband models vital to study high-frequency oscillations, which other-wise would be almost impossible to detect. In this regard, the frequency-dependent effect of tie-lines has been considered a crit-ical feature in analyzing these troubles. However, incorporating them as small-signal impedance mo...Show More

Small-Signal Models of Transmission Lines Oriented to the Impedance-Based Method

Julio Hernández-Ramírez;J. Segundo-Ramírez

Year: 2022 | Volume: 6 | Conference Paper |

Shooting-Method-Based Simulink Initialization

Julio Hernández-Ramírez;J. Segundo-Ramírez;N. Visairo;C. Nuñez

2022 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Year: 2022 | Conference Paper |
This work presents the implementation and performance of a shooting method for rapid initialization of electrical power systems models implemented with the specialized power systems libraries of Simulink. We selected the numerical differen-tiation method as the shooting method since it does not need the mathematical model of the dynamic system explicitly, but only the state vector at the beginning...Show More

Shooting-Method-Based Simulink Initialization

Julio Hernández-Ramírez;J. Segundo-Ramírez;N. Visairo;C. Nuñez

Year: 2022 | Volume: 6 | Conference Paper |

Finite-Difference-Impedance Method for Time-Delay Systems

Juan Segundo-Ramírez;Julio Hernández-Ramírez;Nancy Visairo-Cruz;C. Alberto Núñez Guitiérrez

IEEE Access
Year: 2022 | Volume: 10 | Journal Article |
Cited by: Papers (2)
The stability issues assessment by the impedance-based method demands the computation of accurate small-signal models. However, obtaining impedance models can be a time-consuming task if analytical models or the perturbation-based method are used. Especially in large-scale, poorly damped, distributed, and frequency-dependent parameter systems. A third approach, which has been less explored, is bas...Show More

Finite-Difference-Impedance Method for Time-Delay Systems

Juan Segundo-Ramírez;Julio Hernández-Ramírez;Nancy Visairo-Cruz;C. Alberto Núñez Guitiérrez

Year: 2022 | Volume: 10 | Journal Article |

Application of the Impedance-Based Method in Power Electronics: A Step-by-Step Review

Julio Hernández-Ramírez;J. Segundo-Ramírez;N. Visairo;C. Nuñez

2021 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Year: 2021 | Conference Paper |
The increment of power electronics converters in the power systems has challenged the study of stability and resonance, causing that traditional approaches must be complemented with new tools, such as the so-called impedance-based method which is a powerful alternative to investigate these issues. This work tries to be an introductory self-contained tutorial, explaining the stages involved in the ...Show More

Application of the Impedance-Based Method in Power Electronics: A Step-by-Step Review

Julio Hernández-Ramírez;J. Segundo-Ramírez;N. Visairo;C. Nuñez

Year: 2021 | Volume: 5 | Conference Paper |

Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning

Roberto Moreno-Sánchez;C. Alberto Núñez-Gutiérrez;Nancy Visairo-Cruz;Julio Hernández-Ramírez;Juan Segundo-Ramírez

IEEE Access
Year: 2021 | Volume: 9 | Journal Article |
Cited by: Papers (6)
This paper is dedicated to presenting control-tuning methodologies for the rotor-side converter (RSC) and grid-side converter (GSC) of series-compensated DFIG-based wind farms (WF) and to determining the origin of subsynchronous resonance (SSR). Unlike conventional approaches to re-tuning controller gains to achieve desirable performance, these methodologies only consider the mathematical models o...Show More

Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning

Roberto Moreno-Sánchez;C. Alberto Núñez-Gutiérrez;Nancy Visairo-Cruz;Julio Hernández-Ramírez;Juan Segundo-Ramírez

Year: 2021 | Volume: 9 | Journal Article |

Statistical Switching Overvoltage Studies of Optimized Unconventional High Surge Impedance Loading Lines via Numerical Laplace Transform

Julio Hernández-Ramírez;Juan Segundo;Pablo Gómez;Moein Borghei;Mona Ghassemi

IEEE Transactions on Power Delivery
Year: 2021 | Volume: 36, Issue: 4 | Journal Article |
Cited by: Papers (5)
The development of a revolutionary design for transmission lines was recently introduced by shifting phase configurations and sub-conductors into “unconventional” arrangements that were geometrically optimized to maximize natural power. The objective of this paper is to study the electromagnetic transients that result from the simultaneous and sequential line energization and re-energization of th...Show More

Statistical Switching Overvoltage Studies of Optimized Unconventional High Surge Impedance Loading Lines via Numerical Laplace Transform

Julio Hernández-Ramírez;Juan Segundo;Pablo Gómez;Moein Borghei;Mona Ghassemi

Year: 2021 | Volume: 36, Issue: 4 | Journal Article |

Harmonic linear time invariant modeling of grid-connected parallel inverters-based microgrids

J. C. Hernández-Ramírez;J. Segundo;F. Martínez-Cárdenas;E. Barocio

2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
Modern power systems with high penetration of renewable energies, such as wind and photovoltaic (PV), commonly experiment harmonic issues and in some cases this power quality problem leads to instability. To understand and study this phenomenon, small-signal models have been proposed; however, most of these models neglect the harmonic cross-coupling and the harmonics themselves. Consequently, the ...Show More

Harmonic linear time invariant modeling of grid-connected parallel inverters-based microgrids

J. C. Hernández-Ramírez;J. Segundo;F. Martínez-Cárdenas;E. Barocio

Year: 2017 | Conference Paper |

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