Article
Thermodynamics
Mahdi Shahparasti, Amirhossein Rajaei, Andres Tarrasso, Alvaro Luna
Summary: This paper proposes a multi output multilevel AC/DC power conversion system for Bioelectrochemical Energy Storage (BES) stacks. The system achieves simultaneous control of all output voltages, independent control of active and reactive power interchange, control of grid current quality, and suppression of circulating current.
Article
Automation & Control Systems
Issac Kim, Jung-Wook Park
Summary: This article proposes a new integrated dc-dc conversion system (IDCS) for electric vehicles (EVs). The IDCS integrates the dc-dc converters of on-board charger (OBC), traction converter (TC), and low-voltage dc-dc converter (LDC), reducing the number of components and cost. It performs the functions of each converter while charging the high-voltage battery and low-voltage battery simultaneously, and regulates the dc-link voltage. Experimental tests on a hardware prototype prove its practical effectiveness.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Energy & Fuels
Shuren Wang, Khaled H. Ahmed, Fahad Alsokhiry, Yusuf Al-Turki
Summary: This paper proposes a secure system configuration integrated with a battery energy storage system (BESS) in the DC side to minimize output power fluctuation, gain high operation efficiency, and facilitate fault ride through. The system utilizes robust diode units (DUs) and a half-bridge modular multilevel converter (MMC) to achieve stable and high-quality power transfer.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Electrical & Electronic
Thales Alexandre Carvalho Maia, Menaouar Berrehil El Kattel, Tomas Perpetuo Correa, Anderson Vagner Rocha, Braz J. Cardoso Filho
Summary: This paper proposes an alternative approach for a BESS based on a new control strategy applied to a two-stage bidirectional dc-dc converter. The proposed strategy enables power flow control based on real-time battery conditions, extending system life and increasing reliability and profitability.
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2022)
Article
Computer Science, Information Systems
Kaspars Kroics, Girts Stana
Summary: This paper analyzes the control method of a multiphase interleaved DC-DC converter for integrating a supercapacitor energy storage system into a DC bus with reduced input and output filter size. By operating in modes with smaller output current ripples, the size of the filters can be reduced. However, this leads to limited control of the charging and discharging process of the supercapacitor energy storage system. The paper provides a detailed analysis of the optimal charging strategy for interleaved converters with different numbers of phases and presents experimental results to verify the theoretical findings.
Article
Engineering, Electrical & Electronic
Qiaohui He, Priyank Shah, Xiaowei Zhao
Summary: This paper proposes a GRU-based framework to eliminate false data injection attacks in DC microgrid. The framework consists of two parts, one for estimating the actual DC bus voltage and the other for mitigating malicious cyber-attacks. Simulation results demonstrate the satisfactory performance of the framework under various operating scenarios.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Jiangfeng Wang, Kai Sun, Dehong Zhou, Yunwei Li
Summary: A dual-dc-port dc-ac converter with virtual SVPWM is proposed for PV-battery hybrid systems, providing flexible power control between PV, battery, and the grid. The control scheme consists of an outer power loop and an inner virtual SVPWM, effectively considering the voltage variation of both PV and battery. Experimental results validate the effectiveness of the proposed solution in transferring all active power within a single conversion stage.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Computer Science, Information Systems
Behnam Koushki, Praveen Jain, Alireza Bakhshai
Summary: A new topology and controller for bi-directional EV battery chargers based on single-stage AC-DC resonant converter is proposed. The topology is a Half-Bridge (HB)-Full-Bridge (FB) resonant converter with MOSFET's connected in series and in opposite direction, and an active filter on the DC-side. The use of an appropriate control scheme enables a wide range of power control under different voltage levels, and the absence of electrolytic capacitors increases the reliability of the converter. The controller allows Zero Voltage Switching (ZVS) for all switching instances, reducing conduction losses and improving efficiency, while the active filter absorbs low frequency current ripple to prevent it from affecting the battery and increasing its lifespan.
Article
Engineering, Electrical & Electronic
Pavel Strajnikov, Mor Mordechai Peretz, Alon Kuperman
Summary: This paper presents an electronic capacitor (EC) that can mimic the behavior of a bulk DC link capacitor while reducing the DC-DC converter rating. The device, which uses auxiliary capacitance, can be easily integrated into power electronics supported distributed energy resources, replacing traditional bulk DC link capacitors.
IEEE TRANSACTIONS ON SMART GRID
(2022)
Article
Engineering, Electrical & Electronic
Peng Luo, Tsorng-Juu Liang, Kai-Hui Chen, Shih-Ming Chen, Jiann-Fuh Chen
Summary: This article proposes a systematic method to construct three-port converters and bidirectional three-port converters by integrating non-isolated and isolated dc-dc converters. By adding extra components, the converters can provide independent power flow control and bidirectional power flow control between different ports.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Nikolay Hinov, Tsvetana Grigorova
Summary: The main objective of this article is to propose a rational methodology for designing multi-phase step-down DC-DC converters, which can find applications both in engineering practice and in power electronics education. This study discusses the main types of losses in the multi-phase synchronous buck converter circuit and provides analytical dependencies for their calculation. The output and input current ripples of the multi-phase buck converter are analyzed and compared analytically and graphically, and the impact of various parameters on power losses is examined.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Electrical & Electronic
Chatumal Perera, John Salmon, Gregory J. Kish
Summary: A multiport ac-dc converter topology with bidirectional power transfer capability and the ability to accommodate unbalanced dc loads in bipolar dc distribution systems is proposed. The topology uses two three-phase two-level voltage-sourced converters connected in a differential fashion with a center-tapped transformer to achieve bipolar operation. A control scheme is also proposed for independently controlling power flows between different ports, with validation through simulations and experiments.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Computer Science, Information Systems
Joseph Fabre, Philippe Ladoux, Herve Caron
Summary: In several European railway networks using traditional DC electrification systems, increasing traffic and operating locomotives at their nominal power ratings is not possible. Trackside energy storage systems (TESSs) can be an alternative solution for the creation of new substations. This paper proposes a new topology of a TESS based on full-SiC isolated DC/DC converters associated with lithium-ion batteries and galvanic isolation, offering major advantages for operational safety.
Article
Energy & Fuels
Caio Augusto Fonseca de Freitas, Patrick Bartholomeus, Xavier Margueron, Philippe Le Moigne, Mario Marchesoni
Summary: This paper proposes a new coupling architecture to reduce the volume and mass of the DC-DC converter in a hybrid energy storage system (HESS). The concept of the architecture is validated through simulation and experimental tests, showing a significant reduction in the power sizing of the converter compared to the conventional solution.
Article
Green & Sustainable Science & Technology
Prashant Singh, Jagdeep Singh Lather
Summary: This paper proposes a novel power management strategy for power-sharing between battery and supercapacitor energy storage systems to resolve demand-generation differences and DC bus voltage regulation. The strategy involves compensating for PI controller managed hybrid energy storage systems to improve DC bus regulation and reduce battery stress levels. Redirecting unwaged battery currents to supercapacitors for fast compensation enhances battery lifespan. The stability analysis of DC microgrid is also evaluated, with the effectiveness of the proposed strategy confirmed through simulations and hardware-in-loop experimentation on an FPGA-based real-time simulator.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Computer Science, Information Systems
Qiao Liu, Di Yuan, Nana Fan, Peng Gao, Xin Li, Zhenyu He
Summary: Existing Thermal InfraRed (TIR) tracking methods lack a large-scale TIR image training dataset, resulting in less effective feature models. To address this issue, a dual-level feature model is proposed, consisting of TIR-specific discriminative features and fine-grained correlation features, for robust TIR object tracking.
IEEE TRANSACTIONS ON MULTIMEDIA
(2023)
Article
Engineering, Electrical & Electronic
Shan Jiang, Georgios Konstantinou
Summary: This paper investigates the stability issues of power electronics converters in the power system and proposes an impedance-based analysis method. By developing a generalized impedance model in the dq frame, the stability performance of grid nodes with both grid-following and grid-forming converters can be accurately described and predicted. Additionally, a stability analysis method and converter integration procedure are proposed to facilitate stability-oriented design.
ELECTRIC POWER SYSTEMS RESEARCH
(2023)
Article
Automation & Control Systems
Junting Zhang, Shaobing Yang, Kejian Song, Yingchen Wang, Shanshan Zhang, Georgios Konstantinou
Summary: This article proposes a TPSS harmonic impedance identification method considering the harmonic lateral propagation between two adjacent feeding sections. An operation mode determination method and an improved mean shift clustering are presented, eliminating background harmonic effects and ensuring identification accuracy. Comparative simulations reveal that the proposed method achieves superior performance than conventional methods even if the ratio between load- and source-side impedance fluctuates.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Mridul Marwaha, Kuntal Satpathi, Mohamed Halick Mohamed Sathik, Josep Pou, Chandana Jayampathi Gajanayake, Amit Kumar Gupta, Devinda Molligoda, Ravi Kiran Surapaneni
Summary: The emergence of power electronics has led to the widespread adoption of dc grids, which are known for their improved performance and efficiency. However, fault isolation poses a significant challenge for dc grids due to the absence of current zero-crossing. This article introduces a novel silicon-controlled-rectifier-based bidirectional dc solid-state circuit breaker that not only isolates faulty sections but also provides soft reclosing capability to reduce stress on the breaker and current feeding components, with negligible heat loss by surge suppression devices during reclosing. The effect of component values on circuit-level considerations is analyzed through derived equations, and simulation and scaled-down experimental results are presented to verify the breaker's operation under various conditions.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Multidisciplinary
Awais Ahmad, Hossein Dehghani Tafti, Georgios Konstantinou, Branislav Hredzak, John E. Fletcher
Summary: This paper presents an extensive experimental analysis of the behavior of off-the-shelf distributed photovoltaic inverters to voltage phase angle jump disturbance. Undesirable responses from the inverters are classified and the causes are identified through simulation and experimental evidence. The research also demonstrates the impact of such disturbances on the Australian National Electricity Market and conducts a sensitivity analysis to determine the vulnerability of inverters. This study is crucial for guiding the responses and modeling of distributed photovoltaic inverters.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Yu Zeng, Josep Pou, Changjiang Sun, Suvajit Mukherjee, Xu Xu, Amit Kumar Gupta, Jiaxin Dong
Summary: This article proposes a multiagent deep reinforcement learning (DRL) based approach for controlling input voltage sharing and modulation in an input-series output-parallel dual active bridge converter. The proposed method addresses the challenges of uncertainties in the dc microgrid, power balance, and current stress minimization. The control and modulation problem is formulated as a Markov game and solved using the MA twin-delayed deep deterministic policy gradient (MA-TD3) algorithm. Simulation and experimental results demonstrate the effectiveness of the proposed approach.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shan Jiang, Ye Zhu, Georgios Konstantinou
Summary: Impedance-based analysis methods are widely used for small-signal stability analysis of grid-connected converters. The choice of representing the converter as Norton or Thevenin equivalent circuit is critical, but lacks definition and can result in improper analysis. Existing methods only apply to minimum phase systems, while complex power systems with multiple converters require a new stability criterion. This article proposes a settling-angle-based stability criterion, which is validated through experimental results.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shan Jiang, Yu Zeng, Ye Zhu, Josep Pou, Georgios Konstantinou
Summary: This letter proposes a deep reinforcement learning-assisted framework for multiobjective optimization of control parameters and validates its effectiveness in a control hardware-in-the-loop converter system.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Huawei Yuan, Hin Sang Lam, Neha Beniwal, Siew-Chong Tan, Josep Pou, Shu Yuen Ron Hui
Summary: This article proposes a voltage-balancing control solution for the MV-ES system through the cooperation of diode-clamped converters (DCCs) and dual active bridges (DABs). By taking advantage of the DABs in voltage balancing, the DCCs can adopt simple modulation to ensure grid-friendly voltage and current injection into the power grid.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Ezequiel Rodriguez Ramos, Ramon Leyva, Qingxiang Liu, Glen G. G. Farivar, Josep Pou
Summary: This letter introduces a cost-effective and nonintrusive method to monitor the condition of capacitors online, which utilizes the twice-fundamental-frequency oscillations on the capacitor voltage and current to identify the equivalent series resistance (ESR) and capacitance values. The method offers real-time monitoring without additional hardware or signal injection, providing fast and accurate performance for capacitor condition monitoring.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Eduardo Zafra, Sergio Vazquez, Tobias Geyer, Ricardo P. Aguilera, Leopoldo G. Franquelo
Summary: Finite control set model predictive control (FCS-MPC) is a popular control method for power conversion systems, and the use of long prediction horizons has been shown to improve performance in terms of stability, distortions, and losses. However, the computational burden poses challenges for practical implementation. A solution is to formulate the control problem as an integer least-squares optimization problem, with the sphere decoding algorithm (SDA) being the most popular choice. This article discusses alternative solutions beyond SDA and presents future trends and challenges in this field.
IEEE OPEN JOURNAL OF THE INDUSTRIAL ELECTRONICS SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
Qingxiang Liu, Ezequiel Rodriguez, Glen G. Farivar, Christopher D. Townsend, Ramon Leyva, Josep Pou, Jose Rodriguez
Summary: This article proposes a DPWM strategy with embedded interphase cluster voltage control in cascaded H-bridge static compensators, which improves control performance using a finite control set model predictive control approach.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Matias Aguirre, Sergio Vazquez, Abraham Marquez Alcaide, Ramon Portillo, Samir Kouro, Jose Ignacio Leon, Leopoldo Garcia Franquelo
Summary: This article investigates the switching phase regulation for interleaved dc/dc power converters. By extending PCA-FCS-MPC to achieve phase regulation, a switching pattern similar to that of PWM techniques is achieved while preserving the advantages of FCS-MPC. Simulation and experimental results confirm the effectiveness of the proposed method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Eduardo Zafra, Sergio Vazquez, Abraham M. Alcaide, Jose I. Leon, Leopoldo G. Franquelo
Summary: This paper proposes an improvement to the parallel sphere decoding algorithm by allowing each parallel sphere decoder block to explore a region of the search space following a different search pattern, increasing the diversity of candidates and enhancing the average optimality of the algorithm.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
