Article
Engineering, Mechanical
Ali Abdali, Hossein Maosumkhani, Kazem Mazlumi, Abbas Rabiee
Summary: This paper proposes an accurate and nonuniform magnetic-thermal analysis method for predicting the hotspot temperature of distribution transformers. The method is validated through temperature rise tests using optical fiber sensors, and the empirical evaluation results show that the proposed method is very precise and has a good agreement with the experimental measurements.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Automation & Control Systems
Ali Abdali, Ali Abedi, Kazem Mazlumi, Abbas Rabiee, Josep M. Guerrero
Summary: In this article, a novel formula is proposed to predict the hotspot temperature (HST) of distribution transformers (DTs) by considering the impact of electrical and mechanical parameters on heat dissipation capacity. Complete and accurate 3D modeling based on computational fluid dynamics (CFD) is utilized to validate the proposed formula. Experimental results show that the proposed formula is highly accurate and has a good correlation with empirical values.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Thermodynamics
Ali Abdali, Ali Abedi, Kazem Mazlumi, Abbas Rabiee, Josep M. Guerrero
Summary: In this paper, a comprehensive and precise 3D computational fluid dynamic (CFD) based modeling is proposed for hotspot temperature (HST) prediction in corrugated wall distribution transformers (CWDTs). Optical fiber sensors (OFSs) are employed to validate the precision of the proposed method during the temperature rise test (TRT). The results indicate that the proposed 3D CFD-based model is accurate in predicting HST, and thermal camera results are in good agreement with the simulation.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Tales F. Rodrigues, Leonardo H. Medeiros, Micael M. Oliveira, Gabriel C. Nogueira, Vitor C. Bender, Tiago Bandeira Marchesan, Carlos Eduardo Guex Falcao, Marco Antonio Marin
Summary: This article evaluates the thermal performance of power transformers and explores the positioning of optical fiber sensors for temperature monitoring. The study finds that the punctual temperature measured by optical sensors may not accurately represent the critical temperatures along the transformers' windings. Furthermore, the arrangement of the windings impacts oil flow and temperature distribution, highlighting the need to consider the number and positioning of block washers for better sensor placement.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Mechanical
Harika S. Kahveci
Summary: Designing a high-pressure turbine blade involves significant cooling to withstand high temperatures without compromising aerodynamic performance. Studies show that adding rims to the tip improves heat transfer and reduces pressure losses, contributing to better overall performance.
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
(2021)
Article
Construction & Building Technology
Zhenghao Li, Jiajia Zhou, Christopher K. Y. Leung
Summary: This study proposes an automatic image processing workflow to obtain accurate fiber orientation distribution over a whole section. Experimentally, the fiber orientation distribution in PVA-SHCC tensile samples shows a clear peak at around 20 degrees relative to the tensile direction, which is not revealed by any existing fiber distribution model. A modified fiber orientation analysis considering the sample processing effect is presented, and the parameters are obtained by computational fluid dynamics simulations. The measured or derived orientation distribution can be used to replace random distributions in fiber bridging models to reduce systematic simulation errors.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Engineering, Chemical
Bing Feng, Jian Song, Zhigang Wang, Nikita Dewangan, Sibudjing Kawi, Xiaoyao Tan
Summary: A 3D model based on the computational fluid dynamic method is developed to investigate perovskite hollow fiber membrane modules for oxygen separation. Increasing the vacuum level on the permeate side is more effective in improving oxygen separation rate, while preheating the air feed also significantly enhances the module's oxygen separation performance.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Sicheng Zhao, Qiang Liu, Mark Wilkinson, Gordon Wilson, Zhongdong Wang
Summary: In this paper, a simplified computational fluid dynamics (CFD) model is proposed to determine the heat dissipation and oil temperature distribution of transformer radiators. The model replaces the simulation of air flow with an optimized equation for air heat transfer coefficient, which has been validated experimentally. The derived equation can be used for radiator design and CFD modeling of transformers with different insulating liquids and ambient temperatures.
IEEE TRANSACTIONS ON POWER DELIVERY
(2022)
Article
Engineering, Electrical & Electronic
Andrea Cremasco, Daniel Rothmund, Mitrofan Curti, Elena A. Lomonova
Summary: The short rise time of PWM voltages generated by ultrafast wide bandgap devices increases voltage harmonics at higher frequencies. These harmonics can excite resonances in medium-frequency transformers, causing overvoltages inside the windings. Without further measures, these overvoltages can result in high electric fields in the insulation material, leading to partial discharge, accelerated aging, and possible failure. Therefore, understanding and quantifying the mechanism behind these overvoltages is crucial for the design process.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Lujia Wang, Lijun Zhou, Qiuyue Zhu, Xue Hu, Dongyang Wang, Haitao Yang
Summary: A dynamic thermal network model was proposed for the winding domain inside OBTT, which introduced distributed thermal capacitance to reflect heat storage. The thermal resistance of stagnant oil was first modeled to describe heat transfer near boundary layers. The proposed model was validated with CFD simulation and temperature-rise test, based on a real disk-type winding geometry from a 6.3-MVA OBTT. The model can be used for design optimization and dynamic thermal rating.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Chemistry, Physical
Shikha Marwaha, Prakash Pratik, Kunal Ghosh
Summary: The study focused on quantifying the operating temperature of photovoltaic modules and developed a thermal model to accurately predict the temperature of the modules, demonstrating the model's accuracy. The results showed that different mounting configurations, rack mounted and insulated back, had different effects on the temperature of the PV modules under various environmental conditions, with implications for high temperature scenarios in hot and dry conditions.
Article
Chemistry, Physical
Haleh Baghernavehsi, Ali Fazeli
Summary: The position of the metal fiber burner in compact reformers has a significant impact on the hydrogen mass yield, with the bottom position showing the best performance. Metal fiber burners can distribute the flame more uniformly and provide more available heat for the reforming reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Electrical & Electronic
Shuai Yuan, Lijun Zhou, Fenglin Cai, Dongyang Wang, Lujia Wang, Lin Huang
Summary: This article presents an optimization method for large capacity D-OBTT, which includes a user-defined function-based computational fluid dynamics modeling method to accurately obtain the winding hotspot temperature. Response surface models of the winding hotspot temperature are also proposed. A lightweight optimization of a 6.3-MVA D-OBTT is performed, and the influence of design parameters on weight reduction is studied.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Engineering, Environmental
Amit Kaushal, Rajath Alexander, D. Mandal, Jyeshtharaj B. Joshi, Kinshuk Dasgupta
Summary: This study presents a novel method to address the issue of low carbon conversion and yield in the synthesis of carbon nanotube fiber. By using an internal heating rod to reduce convection vortex, significant improvements in the yield, crystallinity, and aspect ratio of CNT fiber have been achieved.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Mechanical
Daniel Burdett, Thomas Povey
Summary: This paper compares different methods for calculating aerodynamic performance parameters, including plane-average methods and mixed-out methods, and analyzes the sensitivity of these methods to the measurement location, radial range, and exit Mach number. Through the use of experimental data and computational fluid dynamics, the accuracy and applicability of these methods are discussed.
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Analytical
Wael Al Hanaineh, Jose Matas, Jorge El Mariachet, Peilin Xie, Mostafa Bakkar, Josep. M. Guerrero
Summary: The rapid growth of distributed generators in distribution systems has brought new technical issues and challenges to fault protection. A proposed protection system based on the total harmonic distortion (THD) of the grid voltages combines THD with estimated amplitude voltages and zero-sequence components to detect, identify, and isolate faults in the grid using a finite state machine algorithm. Communication lines are used to coordinate protective devices and transmit tripping signals. Simulation results show that the proposed method has faster fault detection time and higher accuracy compared to a conventional differential relay protection system.
Article
Engineering, Electrical & Electronic
Shimiao Chen, Yao Sun, Hua Han, Guangze Shi, Yajuan Guan, Josep M. Guerrero
Summary: Parallel virtual synchronous generator systems are an attractive solution for enhancing inertia support and frequency stability of the power grid. However, the dynamic frequency characteristic is complex due to the interaction of line impedance, virtual inertia, and damping coefficient. This article presents a systematic analysis of the influence of virtual inertia and damping coefficient on the dynamic frequency characteristic, along with a proposed method for improving frequency stability and dynamic performance of parallel VSG systems.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Green & Sustainable Science & Technology
Shanshan Zhang, Shaobing Yang, Qiujiang Liu, Bin Hu, Junting Zhang, Josep Guerrero
Summary: This paper explores the technical and economic feasibility of integrating ESS and RES in the flexible traction power supply system (FTPSS). A battery degradation model suitable for frequent charging and discharging conditions is derived. An operational-sizing co-optimization framework is developed for the ESS in the FTPSS, considering degradation costs varying with sizes and energy throughput. Comparative cases show that the proposed approach achieves approximately 10% higher economic benefits than existing bi-level sizing strategies for FTPSS.
IET RENEWABLE POWER GENERATION
(2023)
Article
Engineering, Electrical & Electronic
Shimiao Chen, Yao Sun, Hua Han, Zhenzhen Luo, Guangze Shi, Liang Yuan, Josep M. Guerrero
Summary: Virtual synchronous generator (VSG) is considered crucial for future low inertia power systems due to its ability to provide flexible inertia support. However, widespread application of VSGs leads to complications such as dynamic frequency interaction, active power oscillation, and inappropriate transient active power-sharing. This paper proposes a distributed control method using Center of Inertia (COI) frequency to address these issues. The method utilizes communication between adjacent neighbors to improve reliability and reduce communication costs, and stability is proven through simulations and experiments.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Review
Computer Science, Information Systems
Mohammad Reza Habibi, Saeed Golestan, Josep M. M. Guerrero, Juan C. C. Vasquez
Summary: Renewable energy resources can be effectively utilized using microgrids, but their uncertain output power poses a challenge for microgrid planning. Information about loads and power consumption can increase microgrid efficiency. Deep learning can predict the output power of renewable energy resources and power consumption, as well as anticipate weather conditions. This paper examines recent works on deep learning for predicting renewable energy output, electrical loads, and weather conditions, and suggests implementing quantum computing in cyber-physical microgrids as a future direction.
Article
Energy & Fuels
Ozgur Celik, Jalal Sahebkar Farkhani, Abderezak Lashab, Josep M. Guerrero, Juan C. Vasquez, Zhe Chen, Claus Leth Bak
Summary: The increasing penetration of distributed generation to power distribution networks has weaknesses in the protection systems. Machine learning techniques can be used to generate reliable and robust fault detection solutions. This paper proposes a non-pilot protection method based on a GMDH neural network for accurate fault detection.
Article
Energy & Fuels
Tayfun Uyanik, Nur Najihah Abu Bakar, Ozcan Kalenderli, Yasin Arslanoglu, Josep M. Guerrero, Abderezak Lashab
Summary: Energy efficiency and operational safety practices on ships have become increasingly important due to regulations set by the International Maritime Organization. Understanding the impact of electrical load on a ship's generators is crucial for strategic energy planning and minimizing the risk of unexpected electrical breakdowns. This study uses data-driven approaches to estimate the load of a chemical tanker ship's generators, achieving accurate predictions.
Article
Engineering, Electrical & Electronic
J. Matas, S. Golestan, J. El Mariachet, S. Abdali, W. Al Hanaineh, J. M. Guerrero
Summary: This paper proposes an error-and-hold algorithm for the Second Order Generalized Integrator-Frequency Locked Loop (SOGI-FLL) to quickly detect faults and hold the estimated frequency during perturbations. The algorithm utilizes the absolute value of the SOGI's error, its average, and the average of the FLL's estimated frequency to reduce induced errors and improve the transient response of the FLL. It is a straightforward and low computational burden algorithm that can be executed on a low-cost processor, as validated through simulations and experimental results.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Green & Sustainable Science & Technology
Kang Miao Tan, Jia Ying Yong, Vigna K. Ramachandaramurthy, Muhamad Mansor, Jiashen Teh, Josep M. Guerrero
Summary: Leaders worldwide are committed to tackling climate change by adopting climate-related measures such as transportation electrification. However, the pace of electric vehicle (EV) adoption varies globally due to factors affecting social acceptance. This article analyzes the competitiveness of EVs based on market demands in different countries and proposes strategies to promote EV adoption and improve their competitiveness.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Saber Arabi Nowdeh, Amirreza Naderipour, Iraj Faraji Davoudkhani, Josep M. Guerrero
Summary: This study focuses on the economic planning of a sustainable island system that integrates wind turbine, battery, combined heat and power system, and thermal storage to meet both electrical and thermal loads. It aims to minimize capital, repair and maintenance, and operating costs, as well as pollution. The study also considers uncertainty parameters and adopts a combined solver to find the optimal solution. Implementation of the proposed scheme in Espoo, Finland, shows a 10%-11% reduction in planning cost compared to a design that only supplies electricity.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Energy & Fuels
Wenfa Kang, Yajuan Guan, Fransisco Danang Wijaya, Elias Kondorura Bawan, Adam Priyo Perdana, Juan C. Vasquez, Josep M. Guerrero
Summary: Rural electrification, diesel generator replacement, and resilient electrification systems against natural disasters are important targets for Perusahaan Listrik Negara (PLN) in Indonesia. Microgrids are seen as a popular and flexible solution to achieve these goals. This paper presents a resilience-oriented planning strategy for community microgrids in Lombok Island, Indonesia, using a mixed-integer linear program implemented in the DER-CAM model. The results show that placing photovoltaic arrays, battery energy storage systems, and diesel generators in multi-node community microgrids can lead to multiple benefits, including 100% rural electrification, cost savings of over 25%, and CO2 emission reduction of over 22% in multinode community microgrids.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Energy & Fuels
Zhuoli Zhao, Jindian Xie, Shaoqing Gong, Xi Luo, Yuewu Wang, Chun Sing Lai, Ping Yang, Loi Lei Lai, Josep M. Guerrero
Summary: Driven by rising energy demand and the goal of carbon neutrality, renewable energy generations (REGs), especially photovoltaic (PV) generations, are widely used in the urban power energy systems. However, the potential stability problem of intelligent control of microgrids (MG) cannot be ignored. This paper establishes a complete dynamic model of autonomous PV-based MG and proposes a distributed stabilization controller to enhance stability with strong robustness.
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
(2023)
Proceedings Paper
Energy & Fuels
Hussein Abubakr, Mohammad Yaqoob, Manuel A. Barrios, Gibran D. Agundis-Tinajero, Hossam Farag, Juan C. Vasquez, Josep M. Guerrero
Summary: The concept of vehicle-to-grid (V2G) has been applied to residential microgrids (MGs) to enhance dynamic and transient stability performance. A PID-PSS controller is used in the V2G scheme, and its effectiveness is compared to conventional MGs without V2G. The results show that using V2G with adaptive PSS is superior in terms of stabilizing time and response characteristics.
2023 IEEE CONFERENCE ON POWER ELECTRONICS AND RENEWABLE ENERGY, CPERE
(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)
Article
Engineering, Electrical & Electronic
Wandry R. Faria, Gregorio Munoz-Delgado, Javier Contreras, Benvindo R. Pereira Jr
Summary: This paper proposes a new bilevel mathematical model for competitive electricity markets, taking into account the participation of distribution systems operators. A new pricing method is introduced as an alternative to the inaccessible dual variables of the transmission system.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Chao Zhang, Liwei Zhang, Dong Wang, Kaiyuan Lu
Summary: The load disturbance rejection ability of electrical machine systems is crucial in many applications. Existing studies mainly focus on improving disturbance observers, but the speed response control during the transient also plays a significant role. This paper proposes a sliding mode disturbance observer-based load disturbance rejection control with an adaptive filter and a Smith predictor-based speed filter delay compensator to enhance the transient speed response.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Arif Hussain, Arif Mehdi, Chul-Hwan Kim
Summary: The proposed scheme in this research paper is a communication-less islanding detection system based on recurrent neural network (RNN) for hybrid distributed generator (DG) systems. The scheme demonstrates good performance in feature extraction, feature selection, and islanding detection, and it also performs effectively in noisy environments.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Zonghui Sun, Xizheng Guo, Shinan Wang, Xiaojie You
Summary: This paper presents a status pre-matching method (SPM) that eliminates the iterative calculations for resistance switch model, and simulates all operation modes of PECs through a more convenient approach. Furthermore, a FPGA implementation scheme is proposed to fully utilize the multiplier units of FPGA.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Rui Zhou, Shuheng Chen, Yang Han, Qunying Liu, Zhe Chen, Weihao Hu
Summary: In power system scheduling with variable renewable energy sources, considering both spatial and temporal correlations is a challenging task due to the complex intertwining of spatiotemporal characteristics and computational complexity caused by high dimensionality. This paper proposes a novel probabilistic spatiotemporal scenario generation (PSTSG) method that generates probabilistic scenarios accounting for spatial and temporal correlations simultaneously. The method incorporates Latin hypercube sampling, copula-importance sampling theory, and probability-based scenario reduction technique to efficiently capture the spatial and temporal correlation in the dynamic optimal power flow problem. Numerical simulations demonstrate the superiority of the proposed approach in terms of computational efficiency and accuracy compared to existing methods.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Juan Manuel Mauricio, J. Carlos Olives-Camps, Jose Maria Maza-Ortega, Antonio Gomez-Exposito
Summary: This paper proposes a simplified thermal model of VSC, which can produce accurate results at a low computational cost. The model consists of a simple first-order thermal dynamics system and two quadratic equations to model power losses. A methodology is also provided to derive the model parameters from manufacturer data.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Jae-Kyeong Kim, Kyeon Hur
Summary: This paper investigates the relationship between the accuracy of finite difference-based trajectory sensitivity (FDTS) analysis and the perturbation size in non-smooth systems. The study reveals that the approximation accuracy is significantly influenced by the perturbation size, and linear approximation is the most suitable method for practical applications.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yuan Si, Amjad Anvari-Moghaddam
Summary: This paper investigates the impact of geomagnetic disturbances on small signal stability in power systems and proposes the installation of blocking devices to mitigate the negative effects. Quantitative evaluation reveals that intense geomagnetic disturbances significantly increase the risk of small signal instability. Optimal placement of blocking devices based on sensitivity scenarios results in a significant reduction in the risk index compared to constant and varying induced geoelectric fields scenarios.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xuejian Zhang, Wenxin Kong, Nian Yu, Huang Chen, Tianyang Li, Enci Wang
Summary: The intensity estimation of geomagnetically induced currents (GICs) varies depending on the method used. The estimation using field magnetotelluric (MT) data provides the highest accuracy, followed by the estimation using 3D conductivity models and the estimation using a 1D conductivity model. The GICs in the North China 1000-kV power grid have reached a very high-risk level, with C3 and C4 having a significant impact on the geoelectric field and GICs.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yue Pan, Shunjiang Lin, Weikun Liang, Xiangyong Feng, Xuan Sheng, Mingbo Liu
Summary: This paper introduces the concept and model of offshore-onshore regional integrated energy system, and proposes a stochastic optimal dispatch model and an improved state-space approximate dynamic programming algorithm to solve the model. The case study demonstrates the effectiveness and high efficiency of the proposed method in improving economic and environmental benefits.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Mohammad Eydi, Reza Ghazi, Majid Oloomi Buygi
Summary: Proportional current sharing, voltage restoration, and SOCs balancing in DC microgrid control algorithms are the leading challenges. This paper proposes a novel communication-less control method using a capacitor and a DC/DC converter to stabilize the system and restore the DC bus voltage. The method includes injecting an AC signal into the DC bus, setting the current of energy storage units based on frequency and SOC, and incorporating droop control for system stability. Stability analysis and simulation results validate the effectiveness of the proposed method.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xiangjian Meng, Xinyu Shi, Weiqi Wang, Yumin Zhang, Feng Gao
Summary: With the increasing penetration of photovoltaic power generation, regional power forecasting becomes critical for stable and economical operation of power systems. This paper proposes a minute-level regional PV power forecasting scheme using selected reference PV plants. The challenges include the lack of complete historical power data and the heavy computation burden. The proposed method incorporates a novel reference PV plant selection method and a flexible approach to decrease the accumulated error of rolling forecasting.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Huabo Shi, Yuhong Wang, Xinwei Sun, Gang Chen, Lijie Ding, Pengyu Pan, Qi Zeng
Summary: This article investigates the dynamic stability characteristics of the full size converter variable speed pumped storage unit and proposes improvements for the control strategy. The research is important for ensuring the safe and efficient operation of the unit.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Firmansyah Nur Budiman, Makbul A. M. Ramli, Houssem R. E. H. Bouchekara, Ahmad H. Milyani
Summary: This paper proposes an optimal harmonic power flow framework for the daily scheduling of a grid-connected microgrid, which addresses power quality issues and ensures effective control through demand side management.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Cong Zeng, Ziyu Chen, Jizhong Zhu, Fellew Ieee
Summary: This paper introduces a distributed solution method for the multi-objective OPF problem, using a coevolutionary multi-objective evolutionary algorithm and the idea of decomposition. The problem is alleviated by decomposing decision variables and objective functions, and a new distributed fitness evaluation method is proposed. The experimental results demonstrate the effectiveness of the method and its excellence in large-scale systems.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)