Article
Engineering, Electrical & Electronic
Hossein Khoun Jahan, Mehdi Abapour
Summary: The article introduces a new switched-capacitor-based multilevel inverter topology to address issues related to high voltage in photovoltaic applications, reducing leakage current and generating high-quality AC voltage. The proposed topology can also be adapted for use in a three-phase inverter configuration, with simulation and experimental results provided for validation.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Automation & Control Systems
Shiqi Kan, Xinbo Ruan, Xinze Huang
Summary: In this letter, a two-stage single-phase photovoltaic (PV) grid-connected inverter with a flying-capacitor-clamped boost three-level converter is proposed to achieve maximum power point tracking of the PV panel. To suppress the second harmonic current (SHC) in the PV panel and eliminate unnecessary electrolytic capacitors, a flying capacitor is used for SHC compensation. To achieve this, an average voltage control for the flying capacitor and bus voltage ripple limitation scheme is proposed. Closed-loop parameters design for the bus voltage ripple limitation loop is provided. Finally, a 3-kVA prototype of the PV grid-connected inverter is fabricated and tested, confirming the effectiveness of the proposed scheme.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Review
Computer Science, Information Systems
Tekai Eddine Khalil Zidane, Ali Saleh Aziz, Younes Zahraoui, Hossam Kotb, Kareem M. Aboras, Kitmo, Yosef Berhan Jember
Summary: Due to its advantages of being clean, secure, and pollution-free, PV power plants play a crucial role in the energy sector. However, for PV power plants to be competitive, their energy costs must be optimized. Thus, numerous studies are being conducted to optimize various components of PV power plants, including their location, inverter topology, cables, PV modules and inverters, module tilt angle, and shading effect. This study systematically analyzes and synthesizes the design of PV power plant optimization from current literature to determine the most suitable combinations for system parameters. It also examines component sizing for PV power plants, such as module tilt angle, inverter, transformer, and cables, and provides an overview of the main components used in PV power plant installations, including PV modules, inverters, transformers, and wiring. Additionally, the different inverter topologies used in PV power plants are compared.
Article
Engineering, Electrical & Electronic
Shiqi Kan, Xinbo Ruan, Xinze Huang, Hao Dang
Summary: This article proposes the use of a flying capacitor clamped boost three-level converter to solve the SHC problem in a PV grid-connected inverter, achieving perfect SHC compensation performance by introducing a virtual impedance. Experimental results confirm the effectiveness of the theoretical analysis and control scheme.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Energy & Fuels
Myada Shadoul, Hassan Yousef, Rashid Al Abri, Amer Al-Hinai
Summary: This paper proposes a new control methodology for grid-connected inverters using an adaptive fuzzy control (AFC) technique, which does not require prior knowledge of the system mathematical model, and exploits the capabilities of the fuzzy system in approximating the nonlinear functions of the grid-connected inverter system. The proposed controller shows better performance in terms of response and reduced fluctuations compared to conventional PI controllers and TSKPFNN controllers.
Article
Chemistry, Multidisciplinary
Yang Liu, Lisheng Li, Pengbo Shan, Haidong Yu, Shidong Zhang, Min Huang, Wenbin Liu, Xinhong You, Pengping Zhang, Yuanyuan Sun, Kaiqi Sun, Yahui Li
Summary: This paper investigates the generation mechanism of the 6th order harmonics and high-frequency resonance in PV grid-connected inverters and proposes a method to absorb the resonant component using an active damping approach by constructing a virtual resistor. Additionally, an adaptive modulation voltage compensation method is introduced to reduce the low-order harmonics. The theories are verified through actual measured data and comparative simulations, which demonstrate that the proposed coordinated control algorithm effectively reduces the resonance point peak and mitigates low-order harmonics by more than 50%. The proposed method is applicable to various operating conditions.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Antoine Musengimana, Haoyu Li, Xuemei Zheng, Yanxue Yu
Summary: This paper presents a robust MIMO control scheme for a PV inverter connected to a weak grid, considering the dynamics of PLL and coupling effects between PCC voltage and active power, while eliminating sensitivity to PLL. Through simulations and real-time simulations, the proposed method demonstrates stable robustness in different grid conditions.
Article
Automation & Control Systems
Xuan Zhao, Dong Jiang, Jianan Chen, Zewei Shen, Qiao Li
Summary: This article introduces a method to eliminate common-mode voltage and reduce leakage current, and analyzes its correlation with FC voltage balance. By changing the transmission sequences of pulses and the action times' distribution of switches, FC voltage can be controlled and common-mode voltage can be reduced.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Thermodynamics
Ahmed G. Abo-Khalil, Khairy Sayed, Ali Radwan, Ibrahim I. A. El-Sharkawy
Summary: The UAE has favorable weather conditions for integrating renewable energies, especially photovoltaic solar energy, into the utility grid. It possesses one of the highest rates of solar radiation in the world, which contributes to reducing greenhouse gas emissions. This article discusses a study on controlling the variability of electricity production from solar energy and improving its integration for self-consumption. It covers topics such as energy storage, photovoltaic production, and optimizing the dimensioning of production systems. The research also examines the economic feasibility and profitability of this technology for a selected building.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Ahmad Afif Nazib, Donald Grahame Holmes, Brendan P. McGrath
Summary: This study proposes a novel current control strategy for LCL grid-connected inverters that only requires inverter-side current sensors, achieving self-synchronized indirect regulation of the grid-side current by estimating the grid voltage phase and filter capacitor current.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Nouha Mansouri, Sihem Nasri, Abderezak Lashab, Josep M. Guerrero, Adnen Cherif
Summary: This paper discusses the application of the complex-vector-filter (CVF) method in reducing harmonics in photovoltaic systems. By using the harmonic-free positive sequence load current, the CVF method generates referential sinusoidal currents, stabilizing grid currents and mitigating harmonic load currents. Compared to the conventional proportional-integral with phase-locked-loop controller, the CVF method demonstrates better performance in terms of robustness, stability, and dynamics. Additionally, the CVF method ensures synchronization stability between the photovoltaic generator and the utility grid system.
Article
Chemistry, Multidisciplinary
Seung-Jin Yoon, Thuy Vi Tran, Kyeong-Hwa Kim
Summary: This study presents an assessment of stability and performance of current controllers with harmonic compensators for an LCL-filtered grid-connected inverter under distorted weak grid conditions. Two typical current control schemes are used to investigate closed-loop system stability and current control performance in the presence of uncertain grid impedance and distorted grid. The impact of distorted weak grid conditions on LCL filters is analyzed to evaluate system robustness and grid-injected current quality.
APPLIED SCIENCES-BASEL
(2021)
Article
Computer Science, Information Systems
P. Madasamy, Rajesh Verma, A. Rameshbabu, A. Murugesan, R. Umamageswari, Josiah Lange Munda, C. Bharatiraja, Lucian Mihet-Popa
Summary: Transformer-less (TL) inverter topologies are gaining popularity in PV power systems due to their high efficiency and low cost. However, traditional topologies like NPC-MLI and FB-DCBP suffer from the shoot-through problem, affecting reliability. A new TL-TNP-MLI topology has been proposed as an alternative, overcoming these issues and suitable for grid-connected PV generation systems.
Article
Engineering, Electrical & Electronic
Bin Guo, Mei Su, Yao Sun, Hui Wang, Xing Li, Yuefeng Liao, Jianheng Lin, Yongheng Yang
Summary: This article proposes an effective current control strategy and compensation method to address the issue of dc current injection in grid-connected PV inverters, without the need for additional sensors and hardware circuits. By comprehensively analyzing the root cause, using a PIR controller and a feedback compensation controller, the dc component is successfully eliminated, and the rejection capability is evaluated.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Engineering, Multidisciplinary
Nirmal Mukundan C M, Sangeetha V., Jayaprakash P., Asokan O. V., Ahmed Al-Durra, Hatem Zeineldin, Tarek H. M. EL-Fouly
Summary: This article proposes a grid-connected solar power transfer unit (PTU) based on a multilevel inverter (MLI) for mitigating the present energy crisis and power quality issues. The MLI configuration provides a low harmonic AC waveform with higher efficiency compared to other topologies. The PTU system is controlled to extract the maximum power from PV arrays and meet the nonlinear local load demands, with three modes of operation and compliance with the IEEE-519 standard verified.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Bingbing Shao, Qi Xiao, Lingfei Xiong, Liyuan Wang, Yongheng Yang, Zhe Chen, Frede Blaabjerg, Josep M. Guerrero
Summary: In this study, the issue of active and reactive power coupling in conventional vector control under weak AC grid conditions is investigated. An improved decoupled power control method based on feedforward compensation is proposed, which allows for more accurate power regulation.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Hadi Bisheh, Bahador Fani, Ghazanfar Shahgholian, Iman Sadeghkhani, Josep M. Guerrero
Summary: This paper presents an adaptive scheme to restore protection coordination in distribution networks with a high penetration level of distributed generation (DG) units. The main protection technique uses a multi-agent system (MAS) structure and intelligent electronic devices (IEDs) to monitor and estimate the operating time of the lateral fuse, preserving protection coordination. The backup technique, independent of communication links, uses a definite time piecewise linear curve for the recloser based on the proposed recloser current coefficient to protect the distribution feeder.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Energy & Fuels
Alexander Micallef, Josep M. Guerrero, Juan C. Vasquez
Summary: The microgrid concept has evolved from simple remote electrification applications in rural areas to complex architectures. Microgrids are essential for integrating higher penetrations of renewables in various energy sectors. With advanced technologies, such as energy and power management systems, peer-to-peer energy markets, and digital tools, microgrids are becoming more sophisticated and are being applied to different sectors, including ships, ports, aircraft, airports, and even in outer space.
Review
Energy & Fuels
Jorge De La Cruz, Eduardo Gomez-Luna, Majid Ali, Juan C. Vasquez, Josep M. Guerrero
Summary: Thanks to smart grids, more intelligent devices can now be integrated into the electric grid, increasing its robustness and resilience. The integration of distributed energy resources requires communication systems and interconnected technologies for monitoring, protection, and control. Fault location and diagnosis are crucial for the secure operation of these systems, and this study analyzes fault location issues and common power failures in physical components and communication infrastructure. The study also explores fault location techniques and methods recommended to improve resilience in the smart grid's distribution sector.
Article
Computer Science, Information Systems
Ch Durga Prasad, Monalisa Biswal, Manohar Mishra, Josep M. Guerrero, Om P. Malik
Summary: This article discusses the challenges of detecting high impedance arcing faults (HIAFs) in an active distribution network and proposes a preprocessing method based on OTET to enhance the HIAF detection process. The optimal parameters of the basis function in OTET are obtained using a particle swarm optimization algorithm, and the optimal value of a drift parameter is designed to improve the reliability and security of fault detection. The method is applicable to different switching events and grounding connections, and it is also reliable for noise and harmonic contaminated signals as well as unbalanced systems.
IEEE SYSTEMS JOURNAL
(2023)
Article
Computer Science, Information Systems
Peilin Xie, Sen Tan, Najmeh Bazmohammadi, Josep M. Guerrero, Juan C. Vasquez
Summary: This article introduces a real-time two-layer PMS system for hybrid-powered ships, which can maintain high fuel efficiency and a healthy SOC level even in extreme sea conditions. By integrating a multi-step load forecasting system, accurate load forecasting can be conducted in a very short time scale.
IEEE SYSTEMS JOURNAL
(2023)
Article
Chemistry, Physical
Yuan Jia, Zhigen Nie, Wanqiong Wang, Yufeng Lian, Josep. M. Guerrero, Rachid Outbib
Summary: The cooperation of platooning vehicles enabled by eco-driving and connected and automated technology has shown great potential in energy saving and traffic efficiency improvement. However, the adoption of eco-driving for connected and automated fuel cell vehicle (CAFCHV) platoons in dynamic traffic environments faces challenges due to the randomly changing states of traffic vehicles and uncertain future road conditions. To address these challenges, a centralized variable spacing control strategy has been designed to adaptively adjust the inter-vehicle spacing and calculate the optimal speed to promote energy allocation efficiency. Simulation results show that the proposed strategy exhibits considerable improvements compared to the adaptive cruise control (ACC) driving manner in terms of global cost, hydrogen consumption, battery degradation, and SOC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Civil
Mohammad Hassan Amirioun, Saeid Jafarpour, Ali Abdali, Josep M. Guerrero, Baseem Khan
Summary: As autonomous electric vehicles and car-sharing services grow in popularity, shared autonomous electric vehicles (SAEVs) are seen as increasingly viable for urban transportation. This article proposes a new scheduling scheme where SAEV fleets can provide energy to power distribution networks after extreme events. The proposed method improves power grid resilience and boosts income for SAEV participants by delivering energy to the distribution network.
JOURNAL OF ADVANCED TRANSPORTATION
(2023)
Article
Engineering, Electrical & Electronic
Peng Zhao, Kai Ma, Jie Yang, Bo Yang, Josep M. Guerrero, Chunxia Dou, Xinping Guan
Summary: In this article, a delay-tolerant distributed adaptive virtual impedance control strategy is proposed for assigned active and reactive power sharing in a seaport microgrid. This strategy actively updates the virtual impedance components and utilizes low-bandwidth communication with time delay. It also incorporates a virtual impedance loop to preserve voltage dynamics. Simulation results in a microgrid with four distributed generation units demonstrate the effectiveness of the proposed strategy for both active and reactive power sharing.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Energy & Fuels
Peilin Xie, Hossein Asgharian, Juan C. Vasquez, Josep Guerrero, Samuel Simon Araya, Vincenzo Liso
Summary: The paper develops an energy management system (EMS) to reduce fuel consumption in a hybrid fuel cell/battery ship. The EMS utilizes ship cruising routines and degradation status of fuel cell modules to optimize power generation planning. Three power allocating strategies are compared, and a sequential rotation procedure is proposed to reduce fuel cell module degradation. Simulation results show that the proposed EMS effectively improves fuel economy and provides sufficient energy backup throughout the voyage.
Article
Energy & Fuels
Bilal Naji Alhasnawi, Basil H. Jasim, Bishoy E. Sedhom, Josep M. Guerrero
Summary: This paper proposes an effective energy management method for optimizing microgrid operation using advanced mixed-integer linear programming. The microgrid is simulated using MATLAB and communication with a cloud server is facilitated through a two-level communication setup. The model is applicable in various scenarios, such as residential buildings and small commercial outlets, and includes distributed generators and hybrid microgrid.
ENERGY SYSTEMS-OPTIMIZATION MODELING SIMULATION AND ECONOMIC ASPECTS
(2023)
Article
Engineering, Multidisciplinary
S. Syama, J. Ramprabhakar, R. Anand, Josep M. Guerrero
Summary: Researchers have successfully developed an improved Extreme Learning Machine (ELM) based forecast model for renewable energy sources prediction by utilizing a hybrid algorithm. This model outperforms existing methods in terms of accuracy and efficiency.
RESULTS IN ENGINEERING
(2023)
Review
Energy & Fuels
S. Golestan, M. R. Habibi, S. Y. Mousazadeh Mousavi, J. M. Guerrero, J. C. Vasquez
Summary: Quantum mechanics is a set of rules for developing quantum theories, and quantum computation is computation based on quantum logic. It has the potential to solve complex computational problems that classical computers cannot solve and has received attention in various fields. This paper aims to attract the attention of power system researchers/engineers to quantum computation as a potential solution to address computational challenges in power systems.
Article
Engineering, Electrical & Electronic
Guangda Ma, Chuan Xie, Cheng Li, Jianxiao Zou, Josep M. Guerrero
Summary: This article introduces a resistor-capacitor (RC) branch-based passive damping scheme for grid-connected inverters, which achieves full-frequency passive output admittance and overcomes the limitation of existing methods that can only address instability issues below the Nyquist frequency.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Review
Engineering, Electrical & Electronic
Abdelfattah A. Eladl, Samaa Fawzy, Elhossaini E. Abd-Raboh, Akram Elmitwally, Gibran Agundis-Tinajero, Josep M. Guerrero, Mohamed A. Hassan
Summary: Most countries are increasingly exploiting renewable energy resources, particularly wind power, for economic and environmental reasons. However, the high penetration of wind energy in modern electrical networks raises issues such as frequency variation, voltage instability, and transmission capacity limitations. To address these problems, strategies such as spilling wind power or adding dispatchable generation and storage systems have been proposed. This paper provides a comprehensive literature review on the issue of wind power spillage (WPS) and discusses state-of-the-art solutions to minimize WPS while ensuring power system stability and security. The paper also explores real-world applications, challenges, and future trends in the field of WPS research.
ELECTRIC POWER SYSTEMS RESEARCH
(2024)
