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    Control Algorithm for an Inverter-Based Virtual Synchronous Generator with Adjustable Inertia
    (MDPI AG, 2025-09-05)
    Christian A. Villada-Leon
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    Johnny Posada Contreras
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    ;
    Rafael A. Núñez-Rodríguez
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    Juan C. Valencia
    <jats:p>This paper presents the design and implementation of a control algorithm for power converters in a microgrid, with the main objective of providing the flexibility to adjust the system inertia. The increasing integration of renewable energy sources in microgrids has driven the development of advanced control techniques to ensure stability and power quality. The proposed algorithm combines droop control, synchronverter dynamics, and virtual impedance to achieve a robust and efficient control strategy. Simulations were conducted to validate the algorithm’s performance, demonstrating its capability to maintain voltage within acceptable limits and improve the inertial response of the microgrid. The results contribute to the advancement of intelligent and resilient microgrid development, which is essential for the transition towards a more sustainable energy system.</jats:p>
      25
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    A Single-Output-Filter Double Dual Ćuk Converter
    <jats:p>This study introduces an innovative version of a recently studied converter. A Double Dual Ćuk Converter was recently studied with advantages like the possibility of designing it for achieving a low-input current ripple. The proposed converter, called the Improved Double Dual Ćuk Converter, maintains the advantages of the former one, and it is characterized by requiring one less capacitor and inductor than its predecessor. This allows addressing the challenge of optimizing the topology to reduce component count without compromising the operation; this work proposes an efficient design methodology based on theoretical analysis and experimental validation. Results demonstrate that the improved topology not only retains the advantages of the previous version, including high efficiency and robustness, but also enhances power density by reducing the number of components. These advancements open new possibilities for applications requiring compact and efficient power converters, such as renewable energy systems, electric vehicles, and portable power supply systems. This work underscores the importance of continuous innovation in power converter design and lays the groundwork for future research aimed at optimizing converter topologies. A detailed discussion of the operating principles and modeling of the converter is provided. Furthermore, simulation outcomes highlighting differences in steady-state duration, output voltage, input current ripple, and operational efficiency are shared. The results from an experimental test bench are also presented to corroborate the efficacy of the improved converter.</jats:p>
    Scopus© Citations 1  13
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    Guest Editorial: Advances in Non‐Isolated DC–DC Converters and Their Applications
    (Institution of Engineering and Technology (IET), 2026-01) ;
    Valdez‐Resendiz, Jesus E.
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    Gopal, Yatindra
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    Babaiahgari, Bhanu
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    Data-Driven Based Control Applied to DC Network Converters for Voltage Bus Stabilization
    (2020)
    J. Loranca-Coutino
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    C.V. Villarreal-Hernandez
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    Mayo Maldonado, Jonathan
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    J.E. Valdez-Resendiz
      1  11
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      26
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      1  23
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    Failure mode and effects analysis and sensitivity analysis for a neutral point re-injection multi-pulse voltage source converter
    (Elsevier BV, 2025-09) ;
    F. Beltran-Carbajal
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    ;
    R. Tapia-Olvera
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    Sensitivity Analysis plays a crucial role in the design, control, and optimization of multi-pulse Voltage Source Converters. It helps engineers assess how variations in parameters influence system performance, enabling the development of more efficient and robust converters. This study presents some Failure Modes and Effects Analysis that intends to identify the most affected components when a gate disconnection failure occurs, making them critical points for stress management. Additionally, the most vulnerable components when gates remain connected to high value are distinguished. Verifying the voltage output shape, it can be noticed that RMS voltage measurements are not a reliable indicator for tracking failure, whereas THD offers a more effective solution. Understanding these failure modes is essential for refining the design and control strategies of electronic converters, particularly in applications such as motor control and StatCom. Sensitivity analysis also strengthens control algorithms, ensuring that they can effectively accommodate parameter fluctuations while aiding in fault diagnosis and failure prediction. The early detection of switch malfunctions in power converters is essential for maintaining system reliability, safety, performance, and cost efficiency. Timely identification allows for proactive maintenance, preventing extensive damage and ensuring continuous operation. As the converters become increasingly integral to various applications, implementing reliable fault detection mechanisms is essential for sustaining their optimal performance and long-term functionality.
      23
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    Neural Network Trajectory Tracking Control on Electromagnetic Suspension Systems
    (2023)
    Francisco Beltran-Carbajal
    ;
    Hugo Yañez-Badillo
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    Ruben Tapia-Olvera
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    ;
    Carlos Sotelo
    <jats:p>A new adaptive-like neural control strategy for motion reference trajectory tracking for a nonlinear electromagnetic suspension dynamic system is introduced. Artificial neural networks, differential flatness and sliding modes are strategically integrated in the presented adaptive neural network control design approach. The robustness and efficiency of the magnetic suspension control system on desired smooth position reference profile tracking can be improved in this fashion. A single levitation control parameter is tuned on-line from a neural adaptive perspective by using information of the reference trajectory tracking error signal only. The sliding mode discontinuous control action is approximated by a neural network-based adaptive continuous control function. Control design is firstly developed from theoretical modelling of the nonlinear physical system. Next, dependency on theoretical modelling of the nonlinear dynamic system is substantially reduced by integrating B-spline neural networks and sliding modes in the electromagnetic levitation control technique. On-line accurate estimation of uncertainty, unmeasured external disturbances and uncertain nonlinearities are conveniently evaded. The effective performance of the robust trajectory tracking levitation control approach is depicted for multiple simulation operating scenarios. The capability of active disturbance suppression is furthermore evidenced. The presented B-spline neural network trajectory tracking control design approach based on sliding modes and differential flatness can be extended to other controllable complex uncertain nonlinear dynamic systems where internal and external disturbances represent a relevant issue. Computer simulations and analytical results demonstrate the effective performance of the new adaptive neural control method.</jats:p>
    Scopus© Citations 4  1  4
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      37
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    Power shaping control of DC–DC converters with constant power loads
    (2020)
    Mayo Maldonado, Jonathan
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    ;
    G. Escobar
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    T.M. Maupong
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    J.E. Valdez-Resendiz
    Scopus© Citations 7  1  13