Article
Engineering, Multidisciplinary
Shailendra Kumar, Dulichand Jaraniya, Rajasekhara Reddy Chilipi, Ahmed Al-Durra
Summary: This article discusses a two-stage photovoltaic grid system controlled by a widely linear reduced-complexity quaternion least mean square (WL-RC-QLMS). The WL-RC-QLMS-based current control method is developed to attenuate harmonic components and handle nonlinear and unbalanced load currents. A Luenberger observer is used to control the dc-link voltage and reject overshoot and undershoot. The proposed controller is modeled and validated on a laboratory prototype, showing its effectiveness in meeting the IEEE 519 standard for grid current distortion under different working conditions.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Lingling Fan, Zhixin Miao
Summary: This paper explains why solar PV inverters may experience more severe overvoltage compared to the measurement point (POM), and presents a quantitative analysis to explain the overvoltage mechanism.
ELECTRIC POWER SYSTEMS RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Liyi Wang, Deyu Cai
Summary: This paper presents a new methodology for simplifying the mathematical derivations of the impedance model of a VSC and analyzing its stability and spectrum characteristics. The impact of the control parameters of the VSC on wideband oscillatory stability is thoroughly analyzed using modal analysis and hardware-in-the-loop experiments.
Article
Engineering, Electrical & Electronic
Lingling Fan, Zhixin Miao, Miao Zhang
Summary: The study found that solar photovoltaic inverters in South California experienced subcycle overvoltage after grid disturbances, mainly due to the inherent LC dynamics caused by shunt compensation and grid inductance, as well as the excitation of overvoltage dynamics by momentary cessation.
IEEE TRANSACTIONS ON POWER DELIVERY
(2021)
Article
Engineering, Electrical & Electronic
Subir Karmakar, Bhim Singh
Summary: The demand for high-power converters in large-scale solar PV plants is increasing. This article presents a 48-pulse voltage-source converter (VSC) that is used as a PV-static synchronous compensator (STATCOM) in a large-scale solar PV plant application. The converter improves efficiency and provides reactive power support to regulate the voltage. The design and controls are verified through MATLAB modeling and real-time implementation.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Review
Mathematics, Applied
Rui Ma, Yayao Zhang, Miao Han, Juergen Kurths, Meng Zhan
Summary: This paper reviews recent progress on the synchronization stability and multi-timescale properties of the renewable-dominated power system (RDPS) from nodes and network perspectives. The phase-locked loop for synchronization is found to play a crucial role in the whole system dynamics. The differences in synchronization and multiscale characteristics between the traditional power system and the RDPS are well uncovered and summarized.
Article
Green & Sustainable Science & Technology
Leonardo Poltronieri Sampaio, Paulo Junior Silva Costa, Sergio Augusto Oliveira da Silva
Summary: A novel integrated converter structure for single-phase grid-tied photovoltaic system is proposed in this paper. The proposed structure can step up the input voltage and inject the energy from photovoltaic arrangements into the utility grid. Through comprehensive analysis and modeling, the feasibility of the proposed system is demonstrated.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Engineering, Electrical & Electronic
Sankha Subhra Ghosh, Surajit Chattopadhyay, Arabinda Das, Nageswara Rao Medikondu, Abdulkarem H. M. Almawgani, Adam R. H. Alhawari, Sudipta Das
Summary: This article describes a method for identifying the IGBT switch breakdown failure in a 3-phase, 3-level Voltage Source Converter linked to the photovoltaic grid. Comparative learning has been used to detect the specific parameter suitable for the detection of the failure.
MICROELECTRONICS RELIABILITY
(2024)
Article
Computer Science, Information Systems
Sathiya Ranganathan, Arun Noyal Doss Mohan
Summary: A new topology of flyback converter for PV application is proposed to address the drawbacks of lower efficiency and non-compactness in size. The converter shows reduced ripple in input current and improved conversion efficiency, making it suitable for high voltage DC applications as verified using MATLAB.
Article
Energy & Fuels
Xiangjian Meng, Jiaxin Liu, Gongke Wang, Jingyang Fang
Summary: This paper proposes a three-input central capacitor dc/dc converter for high-voltage PV systems, which achieves maximum power point tracking and balanced DC voltage by cascaded buck-boost converters and energy transfer regulation, thereby improving the energy yield and efficiency of PV plants.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Automation & Control Systems
Xiaoguang Diao, Fei Liu, Yizhan Zhuang, Yanhui Huang, Shangzhi Pan, Xiaoming Zha
Summary: The input independent output series dc/dc converter has a single power conversion stage with low cost and high efficiency. The proposed novel topology based on multiwinding transformer can balance the output voltages by transmitting the mismatched power among all sub-modules. Unlike the traditional method, which only allows power transfer between adjacent sub-modules, the proposed topology allows direct transfer of mismatched power to the target sub-module, resulting in higher efficiency and lower power losses. Additionally, all switches in the proposed topology have zero voltage switching, further improving efficiency and reducing hardware cost. The proposed topology is verified through simulation and a 1 kW experiment.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Energy & Fuels
Mohamed S. Elrefaey, Mohamed E. Ibrahim, Elsayed Tag Eldin, Hossam Youssef Hegazy, Elwy E. El-Kholy, Samia Abdalfatah
Summary: This paper presents an improved topology for a DC-DC converter suitable for PV applications. The proposed converter has the ability to be energized from multiple DC sources and can supply a single load with DC power at a voltage lower or higher than the summation of all excitation DC voltages with a non-reversed voltage polarity at its output. The converter offers more reliable operation compared to other DC-DC converters due to its ability for operation with partial failures in its exciting sources. The theoretical discussion, performance evaluation through simulation, and experimental work of the proposed converter are presented in this paper.
Article
Engineering, Electrical & Electronic
Jinshuai Zhao, Xiaoyang Ma, Honggeng Yang
Summary: An improved modal sensitivity-based method is proposed to suppress harmonic resonance, by addressing the shortcomings of traditional modal sensitivity methods. The introduction of second-order modal sensitivity and a critical index enhances the robustness of the analysis results, as demonstrated in the IEEE 14-bus system and a high voltage DC (HVDC) system case study.
ELECTRIC POWER SYSTEMS RESEARCH
(2021)
Article
Thermodynamics
I. M. Kirpichnikova, K. Sudhakar, I. B. Makhsumov, A. S. Martyanov, S. Shanmuga Priya
Summary: This study describes the use of a holographic coating heat-protective film to reduce the working temperature of PV modules. Mathematical modeling and simulations verify the effectiveness of the film, and regression models were developed to determine the relationship between the temperature of the protected PV panels and ambient temperature.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Xiaoqin Lyu, Xiaoru Wang, Yulong Che, Longyuan Li
Summary: This paper proposes a small-signal state-space model for multiple vehicle-grid systems based on a dynamic phasor. It investigates low-frequency oscillation using an eigenvalue-based method and analyzes the sensitivities of system parameters. The theoretical analysis is verified by simulations and modal analysis.
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Mohammad B. Delghavi, Amirnaser Yazdani
IEEE TRANSACTIONS ON SMART GRID
(2019)
Article
Automation & Control Systems
Heng Yang, Maryam Saeedifard, Amirnaser Yazdani
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2019)
Article
Energy & Fuels
Sajad Najafi-Shad, S. Masoud Barakati, Amirnaser Yazdani
JOURNAL OF ENERGY STORAGE
(2020)
Article
Green & Sustainable Science & Technology
M. Ali Azghandi, S. Masoud Barakati, Amirnaser Yazdani
Summary: The paper proposes a fractional-order active damping control method with more tuning parameters for grid-connected CSI-based PV systems. A design strategy considering digital control delay has been presented for the fractional-order damper, and simulation and experimental results demonstrate its superior response compared to a standard active damper.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Sajjad Shoja-Majidabad, Amirnaser Yazdani
Summary: This paper proposes two novel adaptive fuzzy backstepping control methods for paralleled DC-DC converters to address the issues of balanced current sharing and output voltage control. The controllers are exercised in a master-slave architecture and offer solutions for buck and boost converters separately, ensuring stability and performance despite uncertainties and open circuit faults.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF ELECTRICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Mahmoud Mehrabankhomartash, Maryam Saeedifard, Amirnaser Yazdani
Summary: In the future power systems, wind turbines connected to AC grids via HVDC and MTDC grids must have the ability to adjust temporary power and time intervals to meet complex grid codes and frequency support requirements. Traditional methods lack the capability to offer both of these crucial features simultaneously, prompting the proposal of two new approaches for addressing this challenge.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Ricardo Perez-Ibacache, Angel L. Cedeno, Cesar A. Silva, Gonzalo Carvajal, Juan C. Aguero, Amirnaser Yazdani
Summary: The dynamic performance of a microgrid is determined by the decentralized primary control strategy embedded in each Distributed Energy Resource (DER) unit, which computes the voltage synthesized by the interfacing voltage-sourced converter to support the microgrid voltage amplitude and frequency. These operational requirements must be met considering converter safety and physical limitations, and in this paper, a single constrained optimization problem is used to address all control requirements via Model-based Predictive Control (MPC) framework.
IEEE TRANSACTIONS ON POWER DELIVERY
(2021)
Article
Automation & Control Systems
Sandeep Kaler, Amirnaser Yazdani
Summary: This article introduces a dynamic model and current-mode control for a DC-DC modular multilevel converter, aiming to expand the converter to a three-leg configuration in order to reduce filtering requirements. The complete model of the converter and systematic approach for power throughput control are developed and verified through simulations and experiments. Expanding from a single-leg to three-leg configuration effectively alleviates the filtering requirements on both high-voltage and low-voltage sides.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
M. Ali Azghandi, S. Masoud Barakati, Amirnaser Yazdani
Summary: Current-source inverters have advantages in high-power conversion applications but suffer from resonance issues. Previous research focused on single inverters and overlooked the complex resonances in systems with multiple parallel inverters. This article proposes a delay-dependent design method using lossless fractional-order virtual capacitors to dampen resonances in multiparalleled grid-connected inverter systems.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Mohammad B. Delghavi, Amirnaser Yazdani, Abdollah Alizadeh
Summary: This paper introduces a power regulation scheme for dispatchable grid-connected DER units based on ILC strategy, which provides fast and stable control of real and reactive powers while compensating for harmonic distortion. The proposed control achieves high-quality power delivery to the grid and is compared with conventional control methods through time-domain simulations.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Amir Khazaee, Amirnaser Yazdani, Hamidreza Mosaddegh Hesar, Bin Wu
Summary: A fast and parameter-intensive maximum power point tracking (MPPT) technique is proposed for a photovoltaic (PV) water pumping system driven by the brushless dc motor (BLDCM). The technique utilizes the inherent perturbations introduced by phase commutation and nonsinusoidal back-EMF of BLDCM to determine the maximum power points of the PV system, instead of artificial signal injection. It can be easily applied to different configurations of BLDCM-based PV water pumping systems. Experimental results demonstrate the effectiveness of the proposed technique.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Sandeep Kaler, Amirnaser Yazdani
Summary: This paper presents an ac-dc converter for dc distribution systems that has a simple structure, bidirectional power flow capability, and robustness to dc-side faults. The converter is controlled based on a dynamic model in a rotating reference frame, providing protection against ac-side faults. The study also provides insights into the design of control parameters for different control loops. Simulation and experimental results confirm the effectiveness of the proposed converter under various operating scenarios.
Proceedings Paper
Automation & Control Systems
Mahmoud Mehrabankhomartash, Amirnaser Yazdani, Deepak Divan, Maryam Saeedifard
IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2020)
Proceedings Paper
Energy & Fuels
Marcos Aguirre, Amirnaser Yazdani
2019 21ST EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE '19 ECCE EUROPE)
(2019)
Article
Computer Science, Information Systems
Ricardo Perez-Ibacache, Amirnaser Yazdani, Cesar Silva, Juan C. Aguero