Article
Engineering, Electrical & Electronic
Chenhui Zhang, Marius Takongmo, John Salmon
Summary: This study presents a pulsewidth modulation (PWM) scheme for three-phase high-speed electric drives using coupled inductors to generate multilevel output voltages with an elevated PWM frequency. The approach modifies the reference signals instead of the carrier signals to improve the PWM line voltage, and uses compensation signals to eliminate flux jumps in the magnetic cores. The enhanced PWM control reduces the peak flux in the magnetic cores, allowing for smaller and lighter inductor design. It also reduces the load current total harmonic distortion factor (THDf) and the load voltage harmonic volt-seconds.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Amir Babaki, Sadegh Vaez-Zadeh, Ali Zakerian, Alireza Jafari Natanzi
Summary: This article presents a method for wireless motor drive using a single inverter, where the inverter transmits high-frequency AC power through magnetic coupling on the primary side and directly drives an induction motor on the secondary side, improving system efficiency. Additionally, a simple AC chopper is used on the secondary side for waveform shaping conversion, allowing AC power to be injected into the motor more efficiently.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
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)
Review
Automation & Control Systems
Ligang Wu, Jianxing Liu, Sergio Vazquez, Sudip K. Mazumder
Summary: This paper presents a review of the history and application of sliding mode control (SMC) in power electronic systems. The fundamental theory of SMC is reviewed and the key technical problems associated with its implementation in power converters and drives are discussed. The recent developments, challenges, and future perspectives of SMC in power converters are also explored.
IEEE-CAA JOURNAL OF AUTOMATICA SINICA
(2022)
Article
Engineering, Electrical & Electronic
Jaime W. Zapata, Gianluca Postiglione, Daniele Falchi, Giovanni Borghetti, Thierry A. Meynard, Guillaume Gateau
Summary: This article introduces a new transformerless multilevel converter topology, which consists of two Macro cells in series that can be extended to increase the number of output levels, along with one external selector cell. The converter topology allows the use of the same devices in different voltage applications and features zero-crossing among other benefits.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Juan Rodriguez, Juan R. Garcia-Mere, Daniel G. Aller, Javier Sebastian
Summary: Envelope tracking is a well-known RF technique that addresses the efficiency problem of linear power amplifiers in wireless communication transmitters. This article proposes a novel multilevel converter that can use low breakdown voltage transistors and exhibits better switching behavior.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Automation & Control Systems
Alejandro G. Yepes, Jesus Doval-Gandoy
Summary: This article proposes an adaptive OVM method for five-phase induction motors that modifies the injected components to favor low-order x-y harmonics, avoiding overcurrent and reducing stator copper losses.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Bowen Yang, Jin Ye, Lulu Guo
Summary: This article proposes a fast, model-free approach to detect cyber threats in EV traction motor drives using only four trustworthy sensor signals. By selecting reliable motor current signals and innovative time-domain features, the method achieves fast detection, high accuracy, and a very low false alarm rate.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2022)
Article
Automation & Control Systems
Pawel Szczepankowski
Summary: This article proposes a novel pulsewidth modulation (PWM) modulation algorithm for multiphase conventional matrix converters, which extends the range of power angle control and is based on direct analytic voltage PWM modulation with an elliptical trajectory of reference load voltages.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Alejandro G. Yepes, Jesus Doval-Gandoy
Summary: This study introduces a control strategy that combines filters with carrier-based PWM method to achieve high DC-link utilization in drives while reducing the impact of torque ripple. The simplicity and adaptability of this method to both symmetrical and asymmetrical winding arrangements are verified. Compared with traditional PWM methods, this approach demonstrates excellent performance in improving DC-link utilization and reducing distortion.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Jiann-Jong Chen, Yuh-Shyan Hwang, Hung- Liu, Chien-Hung Lai, Yitsen Ku
Summary: A low-noise fast-transient-response buck converter suitable for sensor networks is proposed, which features an integral loop filter with noise shaping and superiority of oversampling. The converter also utilizes transient-accelerated circuits to speed up the transient response. Simulation and measurement results show that the proposed converter achieves low spurious noise, fast transient response, and high power efficiency.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Marius Takongmo, Chenhui Zhang, John Salmon
Summary: This article describes and designs coupled inductors with cross-coupled windings for voltage source converters with parallel-connected inverter legs in each phase. The cross-coupled windings reduce the output inductance and enable the generation of multilevel high-frequency pulsewidth modulation output voltages with low fundamental voltage drop. The performance of this inductor winding arrangement is demonstrated with simulation and experimental results.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Computer Science, Information Systems
Gytis Svinkunas, Gytis Petrauskas
Summary: This paper analyzes the harmonics distortion damping in the bidirectional power-flow of the electronics device-matrix converter, finding that two filter topologies are suitable for utility grid connected matrix converters in this scenario.
Article
Engineering, Electrical & Electronic
Harish Karneddi, Deepak Ronanki
Summary: This letter introduces a new reconfigurable battery charger that can charge existing and next-generation EV battery packs with the same power rating. It uses only one relay and a filter capacitor branch, avoiding the need for many passive and active components for reconfiguration. The charger's configuration also avoids the need for a large grid-side filter and can operate in an extremely wide voltage range with intermediate battery voltage charging options.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Zhiyue Yu, Chun Gan, Kai Ni, Yu Chen, Ronghai Qu
Summary: In this article, a simplified pulsewidth modulation (PWM) strategy is proposed for open-winding flux modulated doubly-salient reluctance motor (FMDRM) drives for switching action minimization and common-mode voltage (CMV) reduction. The proposed strategy directly calculates the converter leg reference voltages based on the reference phase voltages and utilizes a rotor-position-based sector division method to address sector imbalance caused by distorted back electromotive force (EMF). Additionally, different leg voltage clamping methods are developed for switching action minimization and CMV reduction. Experimental results on a three-phase 12/8 FMDRM prototype confirm the effectiveness of the proposed scheme.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Energy & Fuels
Marzio Barresi, Edoardo Ferri, Luigi Piegari
Summary: This paper proposes an ultra-fast charging station topology based on a modular multilevel converter (MMC) structure and dual-active bridge (DAB) converters. The charging station can directly interface with the MV grid without requiring transformers or filters. The effectiveness of the proposed charging station is demonstrated through numerical simulations.
Article
Engineering, Electrical & Electronic
Riccardo Lazzari, Luigi Piegari
Summary: In recent years, low-voltage direct current (LVDC) microgrids have become increasingly attractive for integrating renewable sources, storage, and electronic loads. This paper discusses the challenges of protecting LVDC microgrids with multiple feeders and energy sources, and proposes a solution that combines mechanical and hybrid circuit breakers to reduce energy losses. A decentralized control system is designed to overcome transition time and selectivity issues, and is compared with a centralized protection scheme through numerical simulation. The proposed solution proves to be more reliable and flexible, achieving similar performance in fault conditions without relying on the communication system.
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS
(2023)
Review
Energy & Fuels
Mehrshad Pakjoo, Luigi Piegari, Giuliano Rancilio, Silvia Colnago, Joseph Epoupa Mengou, Federico Bresciani, Giacomo Gorni, Stefano Mandelli, Marco Merlo
Summary: This paper reviews the test protocols for building aging models for BESSs. Due to the differences in structure between BESSs and a single electrochemical cell, existing test protocols cannot accurately predict the lifespan of BESSs. Therefore, new testing methods need to be investigated.
Article
Energy & Fuels
Simone Barcellona, Marzio Barresi, Luigi Piegari
Summary: The integration of photovoltaic modules with a modular multilevel converter offers various advantages and allows for efficient power tracking. Previous research proposed a control strategy for managing circulating currents, and this study focuses on optimizing the sizing of a capacitor to improve voltage quality and reduce converter losses.
Article
Energy & Fuels
Gianmarco Gottardo, Andrea Basso Peressut, Silvia Colnago, Saverio Latorrata, Luigi Piegari, Giovanni Dotelli
Summary: This study models and compares three electric architectures of fuel cell electric vehicles using a life cycle assessment method, and highlights the significant impact of converters on fuel consumption.
Article
Engineering, Multidisciplinary
Simone Barcellona, Silvia Colnago, Luigi Piegari
Summary: In recent years, lithium-ion batteries have been widely used in various applications that require high energy and power density. Estimating internal parameters such as capacity and internal resistance is crucial for both static and mobile applications. The internal resistance of a battery affects its power delivery capability and overall efficiency, and it changes under different conditions and aging. The present work deeply analyzes the hysteresis resistance phenomenon, considering cycle aging, and proposes a mathematical model to predict the changes in hysteresis as a function of aging, for a fixed state of charge and temperature.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
P. Aditya, Venkata Raghavendra, Satish Naik Banavath, Xiaoqing Song, Alessandro Lidozzi, Luigi Piegari
Summary: The increasing population and improved human quality of life have posed new challenges to the aviation industry in terms of increased greenhouse gas emissions due to increased air travel. To address this, the industry needs to focus on electrifying air transportation and develop complex electric power systems (EPS) that can handle high power demands. The proposed modified O-Z-source DCCB (MOZSCB) topology, with a thyristor as the main fault interrupting switch and a coupled inductor aiding in commutation, offers a solution for faster fault isolation and overcoming the drawbacks of conventional DCCBs.
2023 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC
(2023)
Article
Energy & Fuels
Simone Barcellona, Silvia Colnago, Lorenzo Codecasa, Luigi Piegari
Summary: Nowadays, energy storage systems are crucial in sectors such as renewable energy production and sustainable mobility. Electrochemical devices, particularly EDLCs, LiCs, and LiBs, are the most common due to their high efficiency and flexibility. This study presents a unified model for predicting the electrical behavior of LiBs in the time or frequency domain and validates it through experimental tests.
JOURNAL OF ENERGY STORAGE
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Silvia Colnago, Marco Faifer, Emil Petkovski, Luigi Piegari
Summary: This paper introduces an economical and automated battery testing system capable of aging batteries of different sizes, and allows users to define various testing cycles programmatically.
2022 IEEE INTERNATIONAL CONFERENCE ON METROLOGY FOR EXTENDED REALITY, ARTIFICIAL INTELLIGENCE AND NEURAL ENGINEERING (METROXRAINE)
(2022)
Proceedings Paper
Energy & Fuels
Eros Avdiaj, Jon Are Suul, Salvatore D'Arco, Luigi Piegari
Summary: This paper presents a control system implementation for operating a Modular Multilevel Converter (MMC) as a Virtual Synchronous Machine (VSM) under unbalanced conditions. A frequency-adaptive filtering strategy is proposed for improving the dynamic response of the MMC energy control loops. This method offers advantages of reduced delay and consistent performance regardless of grid frequency variations.
2022 IEEE 16TH INTERNATIONAL CONFERENCE ON COMPATIBILITY, POWER ELECTRONICS, AND POWER ENGINEERING (CPE-POWERENG)
(2022)
Proceedings Paper
Energy & Fuels
Marzio Barresi, Edoardo Ferri, Luigi Piegari
Summary: This paper proposes a novel fast-charging structure based on MMC and BESS, which integrates the battery energy storage system and the charging spot to avoid bulky output filters and exploit the modularity of the converter. Moreover, an optimal size of the BESS capacity is analyzed to meet different vehicle charging power requirements. Simulation results demonstrate the advantages and drawbacks of the MMC-BESS topology.
2022 IEEE 16TH INTERNATIONAL CONFERENCE ON COMPATIBILITY, POWER ELECTRONICS, AND POWER ENGINEERING (CPE-POWERENG)
(2022)
Proceedings Paper
Energy & Fuels
Davide del Giudice, Davide De Simone, Luigi Piegari
Summary: This paper presents the work originated from participating in the sixth edition of the IEEE VTS Motor Vehicles challenge, focusing on the design of a hybrid dual energy storage system for electric vehicles. The aim is to enhance the overall lifetime and efficiency of electric vehicles by properly sizing the battery cells and supercapacitor modules and implementing an energy management system for control. Three strategies proposed for the challenge are outlined, along with their effects on key variables of interest such as battery current and supercapacitor pack voltage.
2022 IEEE VEHICLE POWER AND PROPULSION CONFERENCE (VPPC)
(2022)
Proceedings Paper
Construction & Building Technology
Sigurd Hofsmo Jakobsen, Junjie Zhang, Tor Inge Reigstad, Lukas Razik, Salvatore D'Arco, Andrea Benigni
Summary: In this paper, a Modelica-based parallel computing framework is proposed for adaptive special protections schemes in power systems. The framework allows for easy implementation of both component and special protection systems using Modelica, and enables testing and evaluating settings in real-time through parallel computing. The flexibility of the framework allows for effortless addition of new component and protection models. The framework is demonstrated using a four-area test network inspired by the Nordic power system, showcasing its capability in ranking different system protection settings based on load shedding.
2022 OPEN SOURCE MODELLING AND SIMULATION OF ENERGY SYSTEM (OSMSES)
(2022)
Proceedings Paper
Instruments & Instrumentation
Massimiliano Amato, Luca Ghezzi, Luigi Piegari, Sergio Toscani
Summary: This paper presents a discretized Preisach-like model for magnetic hysteresis, which uses the Krasnosel'skii-Pokrovskii operator to derive a continuous input-output relationship. The proposed formulation also exploits the anti-symmetrical behavior of magnetic materials to further reduce complexity. The identification procedure based on constrained optimization is robust and computationally efficient, with high accuracy achieved in predicting the flux density waveforms.
2022 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC 2022)
(2022)
Article
Energy & Fuels
Simone Barcellona, Marzio Barresi, Luigi Piegari
Summary: The use of distributed maximum power point tracking (DMPPT) algorithms is becoming more popular due to their higher efficiency in partial shading conditions. Recent research has proposed the integration of photovoltaic (PV) modules in a modular multilevel converter (MMC) connected to the grid, with the advantage of incorporating DMPPT algorithms. This study proposes and analyzes novel control strategies for both the ac and dc circulating current components of a three-phase MMC-based PV system, and demonstrates the effectiveness of these strategies through simulations.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2022)
