Article
Automation & Control Systems
Xi Liu, Chenghui Zhang, Xiangyang Xing, Rui Zhang, Tong Liu, Qicai Ren
Summary: This article presents an improved carrier-based modulation (ICBM) for parallel converters to meet the high current quality and low leakage current requirements in high power rating photovoltaic applications. By injecting a proper zero-sequence modulation wave into the three-phase modulation waves, a low total current ripple is achieved based on the root mean square value analysis of the output current ripple. The initial phase shift angles for the carriers in each converter are modified to minimize the excitation source of leakage current without affecting the quality of total output current. The proposed ICBM is also extended to parallel multilevel converters according to the vector shift principle, enabling simultaneous total current ripple reduction and leakage current attenuation.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Rafael Felipe Van Kan, Eloi Agostini
Summary: This article introduces an isolated soft-switching dc-dc converter based on the t-type commutation cell and employing capacitive output filter. It proposes a hybrid switching strategy and details the energy transfer process and static model. Laboratory tests validate the feasibility of the proposed circuit and theoretical analysis.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
John Long Soon, Guru Praanesh Raman, Jimmy Chih-Hsien Peng, Dylan Dah-Chuan Lu
Summary: This article introduces an inductor core-biasing technique (ICBT) to minimize current ripple in dc-dc converters without increasing the inductance value. By using an ac bias, the proposed ICBT demonstrates reduced ripple in simulations and experimental results, showing enhanced saturation capability and improved efficiency for the same core size.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Carlos A. Villarreal-Hernandez, Omar Fernando Ruiz-Martinez, Jonathan Carlos Mayo-Maldonado, Gerardo Escobar, Jesus Elias Valdez-Resendiz, Julio C. Rosas-Caro
Summary: This article presents a novel output current/voltage control method for interleaved dc-dc converters, ensuring minimal input current ripple and operation throughout the entire operating region. The controller consists of three control stages and has been experimentally validated on a laboratory prototype.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
ByeongGi Jang, Arash Hejazi, Reza E. Rad, Yasser Mohammadi Qaragoez, Imran Ali, YoungGun Pu, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Summary: This article introduces an integrated triple-mode wireless power transmitter circuit that supports multiple wireless power standards, achieving high efficiency through adaptive techniques and various control methods, and enabling efficient battery charging through different communication protocols.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Jingjing Huang, Xiaoyu Wang, Geng Li, Yuangang Sun, Aimin Zhang, Jinyu Wang
Summary: The importance of suppressing dc voltage ripple in resonant dc/dc converters to improve efficiency and ensure power quality is discussed in this paper. An analytical methodology based on instantaneous power theory is proposed to establish a model suitable for any cases and it is found that the voltage ripple largely depends on the switching frequency. A multisteps frequency range design approach is presented to ensure allowable voltage ripple in the entire power range.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Koji Shigeuchi, Jin Xu, Noboru Shimosato, Yukihiko Sato
Summary: A new modulation method is proposed in this study to achieve zero-voltage-switching and sinusoidal line currents under bidirectional operation, by accurately controlling parameters for a high-frequency link bidirectional three-phase ac/dc dual-active-bridge converter. Experimental results confirm the capability to control active and reactive power with sinusoidal line current, achieving a total harmonic distortion of less than 4% under bidirectional operating condition at rated power.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Energy & Fuels
Xinyi Zhu, Shuai Wang, Xiaoqing Chen, Aiqiang Cheng, Haoran Li, Zhiliang Zhang, Xiaoyong Ren
Summary: This paper investigates the input current ripple problem of DC/DC converters and proposes corresponding reduction methods. The 100-Hz bus voltage ripple and the quantized ripple are identified as the main components of the input current ripple. To address these issues, a small-signal model of the DC/DC converter is constructed to mathematically calculate the input current ripple. The proportional-integral-differential-resonant (PIDR) control method and high-resolution pulse-width modulation (HRPWM) technology are introduced to reduce the current ripple, resulting in a significant reduction of 81.5% according to experimental results.
Article
Automation & Control Systems
Abraham Marquez Alcaide, Youngjong Ko, Markus Andresen, Jose I. Leon, Sergio Vazquez, Vito Giuseppe Monopoli, Giampaolo Buticchi, Marco Liserre, Leopoldo G. Franquelo
Summary: Interleaved dc-dc converters are widely used in various applications due to their inherent power sharing and reduced output waveform ripple. However, in some cases such as multistring photovoltaic converters, the mismatched power management among power modules can lead to unbalanced operation and degraded harmonic response. This directly affects the lifetime of the dc-link capacitor, a critical component of the system. This article proposes a variable-angle phase displacement angle to mitigate this issue and extend the converter's lifetime.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Hao Ding, Quanjie Li, Xiaoqiang Guo, Yong Yang, Zhigang Lu
Summary: DC-link current ripple is an important performance indicator of a current-source converter and is closely related to the modulation strategy. Excessive ripple reduces system efficiency, increases total harmonic distortion of grid current, and causes electromagnetic interference. In this article, a novel modulation strategy is proposed to reduce ripple by optimizing the switching sequence according to the modulation index. The proposed strategy effectively reduces current ripple across the modulation index range without increasing switching frequency or inductor, and experimental results confirm its validity.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Energy & Fuels
Michael Njoroge Gitau, Lebogang Masike, Grain P. Adams
Summary: The shape of a current signal determines the analytical expressions required to determine its average and RMS values, as well as the RMS value of its ripple. The current literature lacks a unified approach to analyze current stresses in DC-DC converters. This study proposes a unified and generalized analytical technique applicable to any type of DC waveform that can be treated as a composite waveform made up of a combination of triangular, rectangular, or trapezoidal sections. Additionally, a method for the direct evaluation of the signal's ripple RMS content is developed.
Article
Engineering, Electrical & Electronic
Fengjiang Wu, Kaixuan Wang, Suhua Luo
Summary: This article proposes a hybrid three-level current-fed series-resonant isolated bidirectional DC-DC converter, which achieves efficient operation through duty-cycle plus dual phase-shift control, and presents a modulation strategy optimization algorithm.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Jinghui Chen, Jiande Wu, Keming Liu, Ruichi Wang, Wuhua Li, Xiangning He
Summary: This article focuses on the theory, implementation, and application of Switching Ripple Communication (SRC) technology in power electronic converters. It is proven that modulation using square wave and sinusoidal wave carriers is compatible. Furthermore, an improved FH-DPSK scheme is proposed to suppress output voltage disturbances, enhance power quality, and separate power control from data modulation.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Ruichi Wang, Xiangning He, Jiande Wu, Ruoqi Zhang, Wuhua Li
Summary: This article provides a comprehensive review of the novel power and signal dual modulation (PSDM) technology with power converters. The principle of PSDM is introduced, and the implementation methods are categorized based on the signal forms and injection mechanisms. The merits and demerits of various PSDM methods in each category are analyzed, and comparative analyses and discussions are presented. The article is expected to stimulate further in-depth research and inspire new ideas in this area within the current research framework.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Silpa Baburajan, Haoran Wang, Fabio Mandrile, Bo Yao, Qian Wang, Dinesh Kumar, Frede Blaabjerg
Summary: This article proposes a new method for capacitor design in a multidrive system, aiming to reduce cost and increase lifetime. By using analytical models and optimization strategies, the harmonic current in the dc-link is effectively reduced, and a new capacitor sizing/design considering lifetime, cost, and volume is proposed.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Automation & Control Systems
Javier Loranca-Coutino, Jonathan C. Mayo-Maldonado, Gerardo Escobar, Thabiso M. Maupong, Jesus E. Valdez-Resendiz, Julio C. Rosas-Caro
Summary: This article presents a new approach for the control design of dc microgrids based on experimental data, bypassing the need for network modeling. It allows the control of dc microgrids and maintains stability, even with the interconnection of new passive loads and passivity-based-controlled converters. This model-free approach generates control laws through numerical calculations, avoiding the complexity of dealing with a large number of variables and equations in a dc microgrid.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Chemistry, Physical
Enrique Garza-Arias, Jesus E. Valdez-Resendiz, Julio C. Rosas-Caro, Jonathan C. Mayo-Maldonado, Victor M. Sanchez, Gerardo Escobar, Alma Rodriguez, Pedro M. Rodrigo
Summary: This article describes the feasible implementation of a power conversion system for a Fuel Cell (FC) application in renewable energy generation. The system is designed to be powered by an FC stack and uses double-dual converters, which provide advantages such as automatic power balance and large voltage gain. The feasibility of the system is demonstrated through theoretical analysis and experimental results with an FC stack.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
Carolina Del-Valle-Soto, Juan Arturo Nolazco-Flores, Jose Alberto Del Puerto-Flores, Ramiro Velazquez, Leonardo J. Valdivia, Julio Rosas-Caro, Paolo Visconti
Summary: This study focuses on deploying sensor networks in the homes of users aged 55 to 75, optimizing an energy algorithm to improve the quality of life for older adults. The research includes analyzing vital sign variables, statistically studying users' perception of security, and optimizing sensor algorithm performance. By analyzing the proposed algorithm and quantifying the utility of sensor alerts, improvements in sensor network efficiency are shown.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Engineering, Electrical & Electronic
Samuel Iturriaga-Medina, Panfilo Raymundo Martinez-Rodriguez, Gerardo Escobar-Valderrama, Gerardo Vazquez-Guzman, Diego Langarica-Cordoba, Julio Cesar Rosas-Caro, Jose Miguel Sosa-Zuniga, Jonathan C. Mayo-Maldonado
Summary: This article presents a solution to mitigate leakage-ground currents in a grid-tied H-bridge neutral-point clamped inverter by splitting the LC filter capacitor and connecting each capacitor to a dc-link terminal. The proposed method does not require increasing the number of switches or designing a new modulation scheme. Formal analysis and experimental tests show that this method effectively reduces leakage-ground currents.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Miguel Ramirez-Carrillo, Susana Ortega-Cisneros, Julio C. Rosas-Caro, Jorge Rivera, Jesus E. Valdez-Resendiz, Jonathan C. Mayo-Maldonado, Antonio Valderrabano-Gonzalez
Summary: This paper introduces a topology with larger voltage gain compared to a traditional boost converter. It has advantages such as large voltage gain, low voltage on capacitors, stable voltage output, and utilization of commercial half-bridge packed transistors. The proposed converter can be used in various applications and has been analyzed in steady-state conditions and compared with similar topologies.
Article
Automation & Control Systems
Gabriel E. Mejia-Ruiz, Mario Roberto Arrieta Paternina, Alejandro Zamora-Mendez, Julio C. Rosas-Caro, Guillermo Bolivar-Ortiz
Summary: This article proposes a novel ultra-fast self-powered bidirectional solid-state circuit breaker (SSCB) that reduces conduction losses and detection time. A comprehensive review of the technical literature confirms the advantages of the proposed SSCB, and experimental results verify its fast performance in detecting and processing short-circuit failures.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Review
Chemistry, Multidisciplinary
Julio C. Rosas-Caro, Jonathan C. Mayo-Maldonado, Jesus E. Valdez-Resendiz, Avelina Alejo-Reyes, Francisco Beltran-Carbajal, Oswaldo Lopez-Santos
Summary: This article provides an overview of non-isolated DC-DC converter topologies that use switched-capacitor circuits for large voltage-gain conversion. It reviews different topologies and charge exchange types, and introduces the multilevel boost converter and other recent topologies. The article focuses on switched-capacitor circuits with resonant charge interchange and provides a new proof of discharging losses.
APPLIED SCIENCES-BASEL
(2022)
Article
Automation & Control Systems
Enrique Garza-Arias, Jonathan C. Mayo-Maldonado, Jesus E. Valdez-Resendiz, Gerardo Escobar, Julio C. Rosas-Caro, Daniel Guillen
Summary: This article discusses a fundamental issue in power converter control and proposes new linear and nonlinear control design strategies that bypass the minimum-phase requirement. Experimental results are provided to validate the theory.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Energy & Fuels
Jose Solis-Rodriguez, Julio C. Rosas-Caro, Avelina Alejo-Reyes, Jesus E. Valdez-Resendiz
Summary: This article examines a recently proposed dc-dc converter, the Low Energy Storage Quadratic Boost Converter (LES-QBC), and utilizes the Particle Swarm Optimization (PSO) algorithm to optimize the selection of capacitors. It presents a method for selecting capacitors that minimizes the Output Voltage Ripple (OVR) while meeting the constraint of maximum stored energy in the capacitors. Experimental results demonstrate the effectiveness of the proposed optimization approach, achieving a reduction in OVR compared to the non-optimized LES-QBC.
Article
Energy & Fuels
Hector R. R. Robles-Campos, Antonio Valderrabano-Gonzalez, Julio C. C. Rosas-Caro, Hossam A. A. Gabbar, Bhanu Babaiahgari
Summary: This paper presents a dual-switch high step-up DC-DC power converter with a high voltage gain, low stored energy in inductors, low voltage stress on active switches, and high efficiency. A comparison is made between the proposed converter and conventional boost and high step-up power converters in terms of steady-state time, voltage gain, stored energy in inductors, and efficiency. The assessment shows a significant reduction in stored energy in inductors when compared to the other converters. Simulation and experimental results validate the advantages of the proposed dual-switch high step-up power converter.
Article
Chemistry, Multidisciplinary
Jorge Rivera, Susana Ortega-Cisneros, Julio C. Rosas-Caro, Omar-Fernando Ruiz-Martinez
Summary: This work focuses on the design of a higher-order sliding mode output regulator for trajectory tracking of the voltage capacitor in a boost inverter. The proposed control strategy stabilizes the current through the inductor by directly controlling the output using an appropriate sliding function. Real-time experimentation confirms the good performance of the control strategy.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Julio C. C. Hernandez-Ochoa, Avelina Alejo-Reyes, Julio C. C. Rosas-Caro, Jesus E. E. Valdez-Resendiz
Summary: This work proposes an improvement for a recently proposed converter called low-voltage in capacitors (LVC). The improvement involves modifying the pulse width modulation (PWM) scheme to reduce voltage ripple at the output port and improve power quality. Experimental results prove the reduction in voltage ripple on the LCV and comparisons are made with the traditional boost converter.
APPLIED SCIENCES-BASEL
(2023)
Article
Mathematics
Francisco Beltran-Carbajal, Hugo Yanez-Badillo, Ruben Tapia-Olvera, Julio C. Rosas-Caro, Carlos Sotelo, David Sotelo
Summary: Introduces a new adaptive-like neural control strategy for motion reference trajectory tracking for a nonlinear electromagnetic suspension dynamic system, which integrates artificial neural networks, differential flatness, and sliding modes. This approach improves the robustness and efficiency of the magnetic suspension control system on desired smooth position reference profile tracking.
Article
Computer Science, Information Systems
Jesus E. E. Valdez-Resendiz, Jonathan C. C. Mayo-Maldonado, Avelina Alejo-Reyes, Julio C. C. Rosas-Caro
Summary: This paper reports on the increasing demand for the development of sophisticated power electronics configurations to integrate renewable energy into the grid. By classifying new power converter topologies, their properties can be studied, principles can be generalized, and new contributions with improved features can be generated. The paper focuses on characterizing a specific family of DC-DC double dual converters to create a well-defined corpus of knowledge. The systematic procedure of dualization can be applied to both classical and modern configurations, leading to the development of new designs with enhanced features.
Review
Computer Science, Information Systems
Madhav Kumar, Kaibalya Prasad Panda, Julio Cesar Rosas-Caro, Antonio Valderrabano-Gonzalez, Gayadhar Panda
Summary: Renewable energy utilization is the only suitable solution to reduce greenhouse gas emissions, fuel costs, and energy crisis in the next generation. This study provides a comprehensive review of maximum power point tracking (MPPT) methods for solar photovoltaic (PV) systems, categorizing them into classical, intelligent, optimization, and hybrid techniques, and summarizing their advantages and disadvantages.
