IET Renewable Power Generation最新文献_第3页

Non-Isolated SIDO DC-DC Converter With a High Controllability for PV Applications 具有高可控性的非隔离SIDO DC-DC变换器，用于光伏应用

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-18 DOI: 10.1049/rpg2.70034

Hamed Abdi, Mohammad Maalandish, Ali Nadermohammadi, Seyed Hossein Hosseini, Naghi Rostami

{"title":"Non-Isolated SIDO DC-DC Converter With a High Controllability for PV Applications","authors":"Hamed Abdi, Mohammad Maalandish, Ali Nadermohammadi, Seyed Hossein Hosseini, Naghi Rostami","doi":"10.1049/rpg2.70034","DOIUrl":"https://doi.org/10.1049/rpg2.70034","url":null,"abstract":"This paper proposes a novel non-isolated single-input dual-output (SIDO) DC-DC converter with high controllability for application in on-grid photovoltaic (PV) systems. The proposed topology utilises a combination of a quadratic boost structure and voltage multiplier cells to improve the voltage gain of the converter. Also, it provides two output ports with different voltage levels, making the converter suitable for solar power plants, enabling simultaneous powering of internal loads and the grid-connected inverter through the same converter. Moreover, the proposed converter inherently distributes power asymmetrically between its output ports, prioritising the grid-connected load with a larger power share without needing an internal control loop. On the other hand, the controllability of this converter is significantly enhanced by employing the pole placement method. High voltage gain, soft switching of some switches and diodes, common ground, small ferrite cores, low-capacity capacitors, high efficiency, and high controllability are among the main merits of this topology. The operation of the proposed converter is discussed in detail and compared with other similar structures in the literature. Finally, a 200 W experimental prototype is used to validate the analysis results.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846140","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}

引用次数: 0

Coupled Inductor Based Quadratic High-Gain DC-DC Converter With Wide Range of CCM Operation for Photovoltaic Applications 基于耦合电感的二次型高增益DC-DC变换器，具有宽CCM工作范围

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-18 DOI: 10.1049/rpg2.70038

Babak Allahverdinejad, Ali Ajami, Ali Makaremi

{"title":"Coupled Inductor Based Quadratic High-Gain DC-DC Converter With Wide Range of CCM Operation for Photovoltaic Applications","authors":"Babak Allahverdinejad, Ali Ajami, Ali Makaremi","doi":"10.1049/rpg2.70038","DOIUrl":"https://doi.org/10.1049/rpg2.70038","url":null,"abstract":"This paper presents a novel DC-DC converter designed to achieve a high step-up voltage gain while maintaining a continuous input current. By incorporating a coupled inductor, the proposed converter achieves a high voltage conversion ratio. The continuous input current with minimal ripple makes this converter particularly suitable for a wide range of applications, especially in photovoltaic (PV) systems. The converter operates in continuous conduction mode (CCM) across a wide range of output loads, input voltages, and duty cycles. The use of a single power switch and gate driver circuit not only reduces costs but also enhances overall efficiency. The paper provides a detailed steady-state mathematical analysis of the converter and examines its operation in CCM, discontinuous conduction mode (DCM), and boundary condition mode (BCM). Additionally, an efficiency analysis is presented. To validate the converter's performance, experimental results are provided for a prototype with an input voltage of 20 V, an output voltage of 400 V, an output power of 235 W, and a switching frequency of 33 kHz. These results are thoroughly analysed to confirm the converter's effectiveness. Finally, the proposed topology is compared with other existing topologies to further evaluate its performance. For instance, at a duty cycle (D) of 0.5, the converter achieves a voltage gain of 20, demonstrating its superior step-up capability.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846139","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}

引用次数: 0

The Impact of Hydrogen Vehicles on the Optimal Scheduling of Stand-Alone Microgrids 氢燃料汽车对单机微电网优化调度的影响

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-17 DOI: 10.1049/rpg2.70045

Alireza Ostovar, Amir Ghaedi, Mehdi Nafar, Mohsen Simab

{"title":"The Impact of Hydrogen Vehicles on the Optimal Scheduling of Stand-Alone Microgrids","authors":"Alireza Ostovar, Amir Ghaedi, Mehdi Nafar, Mohsen Simab","doi":"10.1049/rpg2.70045","DOIUrl":"https://doi.org/10.1049/rpg2.70045","url":null,"abstract":"Environmental problems arisen from burning fossil fuels results in the development of renewable resources for electric power production in the power networks, and electric and hydrogen vehicles in the transportation systems. Among the various renewable sources, wind and photovoltaic power plants have grown more and are widely used to supply loads, especially in microgrids. In this paper, optimal scheduling of a stand-alone microgrid containing wind turbines, photovoltaic power plants and fuel-based generation units is performed. Due to the variation in the wind speed and sun irradiance, the output power of wind turbines and photovoltaic power plants varies. To reduce uncertainty of output power of renewable resources, energy storage system such as electrolysis device- hydrogen tank- fuel cell device can be used in the stand-alone microgrid. The hydrogen produced by electrolysis system is stored in the hydrogen tank. The stored hydrogen can be used in the fuel cell device for electric power generation or sold to the hydrogen vehicles. When, the generated power of renewable resources is less than the required load, the generated power of the fuel cell can compensate all or some of electric power shortage. Besides, the hydrogen vehicles can purchase the electric power stored in their batteries to the microgrid, and participate in the vehicle to microgrid scheme. In this paper, for optimal scheduling of the stand-alone microgrid, operation cost of fuel-based microgrid, the reliability cost associated to the penalty of load curtailment, the income from the sale of electricity and hydrogen and the cost of purchasing electricity from hydrogen vehicles are considered. To clearly investigate the impact of renewable resources, hydrogen storage system and hydrogen vehicles on the optimal scheduling of the stand-alone microgrid, numerical outcomes of a microgrid simulated in the MATLAB software are given.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846075","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}

引用次数: 0

Optimised Allocation of Distributed Generation and Electric Vehicles Integration in Microgrids: A Multi-Criteria Approach 微电网中分布式发电和电动汽车集成的优化配置：一种多准则方法

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-15 DOI: 10.1049/rpg2.70042

Mehdi Veisi, Daniel Sahebi, Mazaher Karimi, Farhad Shahnia

{"title":"Optimised Allocation of Distributed Generation and Electric Vehicles Integration in Microgrids: A Multi-Criteria Approach","authors":"Mehdi Veisi, Daniel Sahebi, Mazaher Karimi, Farhad Shahnia","doi":"10.1049/rpg2.70042","DOIUrl":"https://doi.org/10.1049/rpg2.70042","url":null,"abstract":"This paper presents the allocation and planning of renewable distributed generations such as wind turbines and photovoltaic systems, and non-renewable generators such as fuel cells in the microgrids that incorporate electric vehicle parking lots while considering financial, operational and voltage stability goals. The proposal is modelled in the form of a bi-objective optimisation problem. One of the objective functions minimises the distributed generators’ planning cost and the microgrid's operational cost, while the other function maximises the microgrid's voltage stability index. The optimisation problem is solved, satisfying technical constraints of power flow, network operational, and voltage stability limits while incorporating the models of the electric vehicles parking lots and distributed resources. The ε-constraint-based Pareto optimisation solution is used to determine a single-objective formulation in the next step. Then, a fuzzy decision-making tool derives a compromise solution. Finally, the Crow Search algorithm finds a trustable optimal solution to the problem. The performance of the proposal is validated on a standard microgrid network using numerical analyses and shows that the proposal can effectively determine the optimal economic conditions.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835883","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}

引用次数: 0

Robust Control for PV and Battery DC Microgrid System Based on Passive and Sliding Mode 基于无源和滑模的光伏电池直流微电网鲁棒控制

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-15 DOI: 10.1049/rpg2.70033

Xuemei Zheng, Zongxuan Liu, Xingyu Zhang, Josep M. Guerrero

{"title":"Robust Control for PV and Battery DC Microgrid System Based on Passive and Sliding Mode","authors":"Xuemei Zheng, Zongxuan Liu, Xingyu Zhang, Josep M. Guerrero","doi":"10.1049/rpg2.70033","DOIUrl":"https://doi.org/10.1049/rpg2.70033","url":null,"abstract":"For the photovoltaic (PV) combined battery energy storage systems (BESSs) system, the paper proposed a nonlinear full-order terminal sliding mode (FOTSM) combined with the passive based control (PBC) method. In the PV-BESS DC microgrid system, an Euler-Lagrange (EL) model of the DC-DC bidirectional converter is established first and PBC control is adopted for it. Then adopted FOTSM control laws for the outer-loop instead of traditional PI control. The simulation carried out case studies of changing in light intensity, temperature and load. For the light intensity changed case, compared simulation results depicted that DC-bus voltage can be stabilised within 0.1s under the proposed control, while proportional integral (PI) control cannot meet the control requirements. For the light intensity, temperature and load changed together case, the DC-bus voltage can converge to the given voltage within 0.05 s under FOTSMC-PBC control, with a steady-state fluctuation range of ± 1.5 V. For the BESS, the longest stability recovery time of the current is only 0.073 s, with the fluctuation range of 0.067%. Simulations and experiments have all verified that the proposed method is effective under the different work conditions.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831467","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}

引用次数: 0

Internal Voltage Frequency Response Model of Grid-Forming DFIG-Based Wind Turbine and Its Characteristics 成网dfig型风力机内电压频率响应模型及其特性

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-15 DOI: 10.1049/rpg2.70040

Han Yuan, Delin Wang, Xin Zhou, Jun Wang, Muhammad Shahid Mastoi

{"title":"Internal Voltage Frequency Response Model of Grid-Forming DFIG-Based Wind Turbine and Its Characteristics","authors":"Han Yuan, Delin Wang, Xin Zhou, Jun Wang, Muhammad Shahid Mastoi","doi":"10.1049/rpg2.70040","DOIUrl":"https://doi.org/10.1049/rpg2.70040","url":null,"abstract":"The system frequency response (SFR) of doubly-fed induction generator (DFIG) is different from synchronous generator (SG). A grid-forming DFIG via virtual synchronous control of inner voltage vector is proposed to mimic the characteristics of SFR of SG, which leads to an internal voltage SFR model with virtual incremental mechanical power model similar to SG. For clearly demonstrating the inertial dynamics of grid-forming DFIG, the expression of the inertial dynamics in the time domain is firstly derived by convolution, which has same inertial dynamics with SG at the beginning of disturbance. Moreover, the inertia difference between DFIG via synthetic inertia control and grid-forming DFIG is analysed, and the fast power response capability of grid-forming DFIG is demonstrated by comparison with synthetic inertia control. Furthermore, a multi-machine SFR model is established by the proposed SFR model to analyse the impacts of different control parameters on the system frequency dynamics, which is convenient to coordinate with load disturbance. Finally, numerical simulations are conducted to show the effectiveness and accurateness of the proposed SFR model.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835884","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}

引用次数: 0

A Fast-Fixing Method for Stochastic Unit Commitment: A Trade-Off Analysis Between Accuracy and Efficiency 随机单元承诺的快速确定方法：精度与效率的权衡分析

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-15 DOI: 10.1049/rpg2.70036

Ran Li, Lei Zhang, Junyi Tao

{"title":"A Fast-Fixing Method for Stochastic Unit Commitment: A Trade-Off Analysis Between Accuracy and Efficiency","authors":"Ran Li, Lei Zhang, Junyi Tao","doi":"10.1049/rpg2.70036","DOIUrl":"https://doi.org/10.1049/rpg2.70036","url":null,"abstract":"Stochastic unit commitment (SUC) addresses the uncertainties associated with renewable energy resources by generating various scenarios, which challenges the solution efficiency due to the vast number of variables and constraints involved. Existing methods apply machine learning techniques to accelerate the process by directly predicting generator outputs. However, machine learning may not deliver feasible solutions that meet all the constraints. This paper proposes a fast-fixing method (FFM) that predicts the probability distribution of unit statuses instead of directly predicting the dispatch decisions. With units on/off statuses partly prefixed, the original large-scale mixed-integer linear programming (MILP) problem will be simplified. The number of prefixed units can be adjusted by a threshold predicting acceptance (PA), providing a flexible choice for users to balance the trade-off between efficiency and accuracy. According to the case study on RTS-96 involving 15 to 30 generator units and 20 scenarios, when setting PA to 0.1, the proposed FFM significantly decreases the average solving time by 45.28% compared to CPLEX, 28.6% compared to Gurobi, and 21.43% compared to Benders decomposition, while only sacrificing a uniform 0.34% in average accuracy across all comparisons.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831348","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}

引用次数: 0

CFD model of the heat transfer processes in an offshore photovoltaic panel 海上光伏板传热过程的CFD模型

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-14 DOI: 10.1049/rpg2.13154

Pablo Rubial-Yáñez, Luis García-Rodríguez, María Isabel Lamas-Galdo, Laura Castro-Santos, Almudena Filgueira-Vizoso

{"title":"CFD model of the heat transfer processes in an offshore photovoltaic panel","authors":"Pablo Rubial-Yáñez, Luis García-Rodríguez, María Isabel Lamas-Galdo, Laura Castro-Santos, Almudena Filgueira-Vizoso","doi":"10.1049/rpg2.13154","DOIUrl":"https://doi.org/10.1049/rpg2.13154","url":null,"abstract":"Solar energy has become increasingly important in recent years. The installed capacity has increased over the years, and today solar energy represents a significant part of the renewable energy contribution. One of the handicaps of photovoltaic panels is the cooling process. The panels are susceptible to overheating, which leads to a reduction in efficiency. One of the ways to mitigate this problem is to install the photovoltaic panels offshore, where cooling is more efficient, thus increasing power generation. Due to the lack of in-depth analysis of numerical models for studying heat transfer in offshore photovoltaic panels in the literature, this work proposes a computational fluid dynamics model to analyse the thermal performance of an offshore photovoltaic panel. The numerical model was used to characterize the heat transfer processes. The model was validated with experimental data from an onshore panel setup, where key parameters such as solar radiation, inlet air temperature, and solar cell temperature were measured. A comparison between onshore and offshore installations was made. The model showed that the average solar cell temperature in offshore conditions is 39.11°C, compared to 45.5°C for onshore panels. Over a day analysed, the average efficiency improved from, 10.7% to 11.2%. The research also highlighted the critical role of water temperature in affecting the thermal performance of PV panels. The potential impact on the marine ecosystem due to increases in water temperature was found to be negligible, supporting the sustainability of offshore PV systems. These results demonstrate the advantages of offshore photovoltaic systems over traditional onshore ones, contributing to the advancement of sustainable energy solutions.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883782","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}

引用次数: 0

Research Progress and Development Trends of Building Energy Conservation Based on Bibliometric Analysis 基于文献计量分析的建筑节能研究进展与发展趋势

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-12 DOI: 10.1049/rpg2.70035

Youzhuo Zheng, Xiaobing Xiao, Yongxiang Cai, Zhenghao Gao, Yuanhong Ye, Hongwei Li, Zhufeng Wang

{"title":"Research Progress and Development Trends of Building Energy Conservation Based on Bibliometric Analysis","authors":"Youzhuo Zheng, Xiaobing Xiao, Yongxiang Cai, Zhenghao Gao, Yuanhong Ye, Hongwei Li, Zhufeng Wang","doi":"10.1049/rpg2.70035","DOIUrl":"https://doi.org/10.1049/rpg2.70035","url":null,"abstract":"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.","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}

引用次数: 0

A Grid Partition Planning Method of AC–DC Interconnected Main Grid for Large-Scale Renewable Energy Integration 大规模可再生能源集成交直流互联主电网的电网分区规划方法

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-04-09 DOI: 10.1049/rpg2.70023

Xun Lu, Xianfu Gong, Peng Wang

{"title":"A Grid Partition Planning Method of AC–DC Interconnected Main Grid for Large-Scale Renewable Energy Integration","authors":"Xun Lu, Xianfu Gong, Peng Wang","doi":"10.1049/rpg2.70023","DOIUrl":"https://doi.org/10.1049/rpg2.70023","url":null,"abstract":"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.","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}

引用次数: 0