IET Renewable Power Generation最新文献

{"title":"Research Progress and Development Trends of Building Energy Conservation Based on Bibliometric Analysis","authors":"Youzhuo Zheng,&nbsp;Xiaobing Xiao,&nbsp;Yongxiang Cai,&nbsp;Zhenghao Gao,&nbsp;Yuanhong Ye,&nbsp;Hongwei Li,&nbsp;Zhufeng Wang","doi":"10.1049/rpg2.70035","DOIUrl":"https://doi.org/10.1049/rpg2.70035","url":null,"abstract":"<p>In order to mitigate the negative impact of increasing energy demand for buildings, a series of measures are taken to improve the energy efficiency in the built environment. Previous studies have found that household appliances, hot water supply and space heating in buildings account for a large proportion of energy consumption, where heating, ventilation, and air conditioning (HVAC) contribute about 40% of the energy consumption as well as a large amount of greenhouse gas emissions. Energy saving while maintaining occupant comfort, therefore attract tremendous interest in the field where HVAC energy reduction or efficiency improvement are the key issues. By employing data mining and visualization technologies, this paper has reviewed highly crucial work in building energy systems with an attempt to explore the key researches as well as the future development trend. On the platform of CiteSpace with Web of Science (WOS) database, the key findings in line with building energy conservation technologies are collected. An innovative bibliometric method is used to map the knowledge in a visualizing way where research directions and cutting-edge technologies are discovered. This article also discusses the relationship between energy system development and national energy conservation policies with a specific focus on China's photovoltaic policies.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Grid Partition Planning Method of AC–DC Interconnected Main Grid for Large-Scale Renewable Energy Integration","authors":"Xun Lu,&nbsp;Xianfu Gong,&nbsp;Peng Wang","doi":"10.1049/rpg2.70023","DOIUrl":"https://doi.org/10.1049/rpg2.70023","url":null,"abstract":"<p>Amid the goals of carbon peaking and carbon neutrality, the unpredictability and fluctuations associated with integrating large-scale renewable energy pose substantial challenges to the new electric power system. This situation calls for robust grid partition planning methods to maintain the power grid's safety and stability. This paper addresses the problem of 500 kV main grid partition planning by proposing a partition method based on complex network theory and an improved multi-objective cuckoo search optimisation (MOCSO) algorithm to achieve grid optimal partition and the generation of key channel set. First, a comprehensive reliability indicator system is constructed to comprehensively assess and optimise the reliability of AC–DC hybrid grid based on spatial and temporal distribution characteristics. Second, a grid partition planning method based on the information gap decision theory (IGDT) and MOCSO algorithm is proposed. It can quickly find the global or near-optimal solution, adapt to the change of system demand and take into account various practical constraints. Finally, taking a 500-kV grid in a province of China as an example, the effectiveness of the proposed method is verified through simulation analysis. Results show that this method significantly reduces short-circuit current, enhances system stability and provides technical support and feasible partition scheme for scientific planning and safe operation of the grid. The proposed method has high practical value and promotion significance as it achieves an efficient balance between short-circuit current control and system stability while taking into account both economy and reliability.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental-Numerical Investigation of the Photovoltaic Thermal System with Polypropylene Heat Exchanger: Case in Morocco","authors":"Yassine El Alami,&nbsp;Elhadi Baghaz,&nbsp;Rachid Bendaoud,&nbsp;Fatima Chanaa,&nbsp;Mohammadi Benhmida,&nbsp;Hassan Ezzaki,&nbsp;Rehena Nasrin","doi":"10.1049/rpg2.70041","DOIUrl":"https://doi.org/10.1049/rpg2.70041","url":null,"abstract":"<p>This study uses experimental and numerical methods to evaluate a hybrid photovoltaic-thermal system (PVT-S) against a traditional photovoltaic panel (PV-P) in El Jadida, Morocco. A polypropylene heat exchanger covering 70% of the PV-P surface is analyzed for its impact on thermal distribution and performance. The effects of water mass flow rate (FRT) and solar irradiance on cell temperature, electrical power, thermal energy, and efficiencies are examined. Simulations were performed using the finite element method for water FRT of 60, 90, 120, and 180 L/h. Experimental tests validated the numerical results, showing strong agreement and confirming the analyses' reliability. The results reveal a maximum power difference of 30.42 W between the PVT-S and PV-P at 120 L/h FRT. Thermal and electrical efficiencies and system power increase with higher flow rates, greater solar irradiation, and a smaller inlet-outlet temperature difference. A higher FRT results in a lower cell temperature. The average thermal efficiency of the PVT system, between 32.99% and 51.15%, is lower than literature values due to imperfect thermal contact between the polypropylene heat exchanger and the PV-P, along with a limited irrigated surface area of 70%. Partial cooling leads to uneven thermal distribution, reducing performance and shortening solar cell lifespan.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Multi-Stage NSGA-III Optimization Model for False Data Injection Attacks in Integrated Power-Hydrogen Cyber-Physical Systems","authors":"Dong Hua,&nbsp;Haomin Huang,&nbsp;Peifeng Yan,&nbsp;Suisheng Liu,&nbsp;Qinglin Lin,&nbsp;Qian Li","doi":"10.1049/rpg2.70022","DOIUrl":"https://doi.org/10.1049/rpg2.70022","url":null,"abstract":"<p>The growing integration of renewable energy sources and hydrogen technologies into the power grid has introduced significant cyber-physical vulnerabilities, particularly to false data injection attacks (FDIA). This paper presents a novel three-stage FDIA optimization model targeting integrated power-hydrogen systems. The model leverages the interdependencies between power grids and hydrogen infrastructures, aiming to maximize system disruption while minimizing detection likelihood. Using a multi-objective optimization framework based on the non-dominated sorting genetic algorithm III (NSGA-III), the model identifies Pareto-optimal attack strategies by balancing conflicting objectives. The case study uses synthesized data to represent realistic conditions in the IEEE 118-bus system, incorporating hydrogen storage facilities and production infrastructure. Simulations demonstrate how coordinated attacks can exacerbate imbalances in power load and hydrogen storage, resulting in cascading failures across both systems. The results show that the power system's recovery time increases exponentially with the attack intensity, while the hydrogen system suffers from slower, more complex recovery dynamics. This work highlights the critical need for advanced cybersecurity frameworks to protect integrated power-hydrogen infrastructures from sophisticated cyber-physical threats, emphasizing the importance of monitoring and securing multiple layers of the system.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harmonic Mitigation in Power Systems With High Wind Sources Penetration by Placing Passive Filters Considering Resonance Issues: A Case Study of the Sistan Power Grid","authors":"Saeid Setamkesh,&nbsp;Ali Karimi,&nbsp;Mohsen Rahimi","doi":"10.1049/rpg2.70031","DOIUrl":"https://doi.org/10.1049/rpg2.70031","url":null,"abstract":"<p>The harmonic challenge is high in power systems where many wind farms (WFs) are installed due to using power electronic devices. This paper proposes a multi-objective framework with minimising THD index and cost function for reducing harmonics in the presence of several WFs to determine the type, number, location, size, and tuning frequency of passive filters considering resonance issues. Much previous research has focused on local harmonic reduction in a WF, and less attention has been paid to a region with multiple WFs. The Milnader region of the Sistan power grid in Iran has been selected to implement the proposed framework. As Iran's wind energy hub, planning studies for constructing several WFs are underway in this region. Due to many decision variables of the problem, the NSGA-II algorithm is implemented in MATLAB. Still, the normal and harmonic load flow analysis and frequency scanning are performed in the DIgSILENT. The simulation results are evaluated as a set of Pareto front solutions from different aspects, and finally, among the 4 selected optimal solutions, Solution #4 is chosen considering the resonance considerations, which in most of the buses in the region, THD reaches below 1%.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RETRACTION: Investigation and 3E (Economic, Environmental and Energy) Analysis of a Combined Heat and Power System Based on Renewable Energies for Supply Energy of Sport Facilities","authors":"","doi":"10.1049/rpg2.70037","DOIUrl":"https://doi.org/10.1049/rpg2.70037","url":null,"abstract":"<p><b>RETRACTION</b>: J. Fei, Z. Su, Y. Yao, C. Fei, and A. Shamel: Investigation and 3E (economic, environmental and energy) analysis of a combined heat and power system based on renewable energies for supply energy of sport facilities. <i>IET Renewable Power Generation</i> 00, 1–15 (2023). https://doi.org/10.1049/rpg2.12777</p><p>The above article, published online on 8th June 2023 in Wiley Online Library (wileyonlinelibrary.com) has been retracted by agreement between the journal's Editor-in-Chief, David Infield; the Institution of Engineering and Technology; and John Wiley &amp; Sons Ltd.</p><p>This article was published as part of a guest-edited special issue. The retraction has been agreed upon following an investigation by the IET, John Wiley &amp; Sons Ltd, and the journal, who have determined, that the article was not reviewed in line with the journal's peer review standards and there is evidence that the peer review of the paper was manipulated. Accordingly, we cannot vouch for the integrity or reliability of the content and have taken the decision to retract the article. The authors have been informed of the decision and Zhanguo Su disagreed with the retraction.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimising Wind Energy Site Selection in Northern Afghanistan: An Integrated Analysis of Analytical Hierarchy Process and Genetic Algorithms","authors":"Abdul Baser Qasimi,&nbsp;Areej Al Bahir,&nbsp;Ara Toomanian,&nbsp;Vahid issazade,&nbsp;Najmeh Neysani Samany","doi":"10.1049/rpg2.70032","DOIUrl":"https://doi.org/10.1049/rpg2.70032","url":null,"abstract":"<p>The present work evaluates wind energy capabilities in different provinces in Afghanistan using analytical hierarchy process (AHP) and genetic algorithms (GA) techniques. AHP analysis used Expert Choice software to achieve the best criterion weights according to life cycle assessment results involving major criteria such as wind speed, slope, elevation, climate zone, air pressure and vicinity to infrastructure. The study further shows that the northwestern provinces, namely Kunduz, Balkh, Jawzjan, and Faryab, have the greatest potential in large wind power plants because of cost influences and wind speed. Altogether, these provinces would be expected to produce roughly 26.3 GWh of renewable energy per year, strongly supporting Afghanistan's renewable energy goals. On the low side, provinces like Badakhshan and Takhar have small sizing capacity with maximum suitability for localised and off-grid applications; Badakhshan has an area of 432 km² within a total of 2292 km²; Takhar has 217.7 km² and has limited potential for utility-scale connected wind farms. However, the GA method, which is known for its accuracy, supports the AHP result for Badakhshan but depicts lower suitability for Takhar. The GA unequivocally points out Kunduz medium-suitable areas and sporadic potentiality levels in Samangan and Baghlan Province. A total of 918 km² of the Kunduz area is potential, while 854 km² are moderately potential for wind energy. The province of Sar-e-Pul has identified the Southern region as a potential wind energy source-524 km². In total, 1816 km² provinces of Balkh and Jawzjan together have the largest wind energy potential of about 14.3 GWh per annum. Combined with the estimate, the total harvestable wind energy in the study area is 46.6 GWh. The results of this paper are important for policymakers and stakeholders to select appropriate sites for wind farm development, promote the sustainable energy agenda, and meet the increasing energy demands in Afghanistan.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study of Optimisation Algorithms for Cloud Electric Vehicle-to-Grid Battery Operations in Microgrids With High Penetration of Solar Photovoltaics","authors":"Thanh Tung To,&nbsp;Solmaz Kahourzade,&nbsp;Amin Mahmoudi","doi":"10.1049/rpg2.70017","DOIUrl":"https://doi.org/10.1049/rpg2.70017","url":null,"abstract":"<p>This paper proposes optimisation techniques for the operations of cloud electric vehicle-to-grid battery (CEVB) in microgrids with high penetration of solar photovoltaics (PVs). It thoroughly scrutinises popular methods such as gradient descent (GD), as well as three heuristic methods, including pattern search (PS), particle swarm optimisation, and genetic algorithms. Addressing the limitations of these methods, such as local optimality and constraint violations, is achieved through intensive experimentation, utilising stochastic initialisation and a hybrid heuristic-GD multiple-run strategy. These experiments also investigate the effects of heuristic algorithm parameter settings on the optimisation results, identify optimal parameters for each heuristic-GD method, and assess their effectiveness in handling uncertainties in CEVB operational model inputs (solar irradiance, electricity price, and electric vehicle [EV] power demand). Evaluations conducted using actual operational data from an EV charging station in South Australia demonstrate that all proposed methods can achieve global optimal results in fewer than 100 runs with appropriate parameter settings. Scalability tests were conducted to validate the method's feasibility for larger systems, offering valuable insights into computation times as the number of CEVBs grows. The proposed methods demonstrate robustness in addressing uncertainties in electricity prices and EV power demand, ensuring reliable and adaptable performance across various scenarios.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Importance of the Steel Price in Offshore Wind","authors":"Laura Castro-Santos,&nbsp;Isabel Lamas-Galdo,&nbsp;David Cordal Iglesias,&nbsp;L. Piegari,&nbsp;P. Tricoli,&nbsp;Almudena Filgueira-Vizoso","doi":"10.1049/rpg2.70029","DOIUrl":"https://doi.org/10.1049/rpg2.70029","url":null,"abstract":"<p>The price of some raw materials has been increased during the last 2 years. Firstly, the COVID pandemic and, secondly, the Ukraine-Russia war, have bringing a lot of economic consequences for the majority of the world's economies. The main purpose of the present paper is to analyse the importance of steel price in offshore wind. In this context, several economic indicators usually considered in energy industry, such as LCOE (levelized cost of energy) will be calculated. The method was carried out for a floating offshore wind farm composed by semisubmersible substructures and located in the main Atlantic Islands of Spain: the Canary Islands. Moreover, several cases of study with different prices of steel have been calculated in order to know the influence of this parameter in the economics of an offshore wind farm. Results of the three cases of study considered the highest economic variations are related to the internal rate of return and LCOE, with values of −7.6% and 5.4% respectively. Therefore, variations on the price of steel during last 3 years has repercussion on decisions about renewable energy, particularly floating offshore wind, where different types of materials for offshore platforms are being tested (steel or concrete, for instance).</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accurate Impedance Measurement Technology for Power Line Communication Considering Noise Interference","authors":"Yu Zhou,&nbsp;Fan Gao,&nbsp;Yue Li,&nbsp;Zhen Zhang,&nbsp;Chao Zhou","doi":"10.1049/rpg2.70028","DOIUrl":"https://doi.org/10.1049/rpg2.70028","url":null,"abstract":"<p>The impedance of power line channels is related to various factors such as frequency, time, connection location, load type, and power grid structure. The impedance mismatch will reduce the coupling efficiency and transmission efficiency of signals, and seriously affect the quality of power line communication. Therefore, accurate measurement of power line channel impedance and analysis of impedance characteristics are of great significance for improving the reliability of power line communication. In this paper, an improved ratio method considering the noise interference is proposed. In the method, the original generation method of sweep frequency signals is changed to one-time multi frequency and variable amplitude injection signals. Based on real-time signal processing technology, the voltage information at all tested frequency points is measured at once, including amplitude and phase. Through digital signal processing technology, the influence of noise is weakened, and the impedance amplitude and phase of all tested frequency points are accurately calculated. By the method, the requirements of the measurement circuit are simplified and the frequency range of impedance measurement is expanded to 100 kHz to 12 MHz. Finally, the impedance characteristics on the concentrator side and the user meter side are measured, laying the foundation for impedance matching design and improving power line communication quality.</p>","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}