IET Renewable Power Generation最新文献_第2页

A learning-based energy management strategy for hybrid energy storage systems with compressed air and solid oxide fuel cells

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-20 DOI: 10.1049/rpg2.13192

Yundie Guan, Xiangyu Zhang, Zheming Liang, Tao Chen

{"title":"A learning-based energy management strategy for hybrid energy storage systems with compressed air and solid oxide fuel cells","authors":"Yundie Guan, Xiangyu Zhang, Zheming Liang, Tao Chen","doi":"10.1049/rpg2.13192","DOIUrl":"https://doi.org/10.1049/rpg2.13192","url":null,"abstract":"The intermittency and volatility of renewable energy have been major challenges in modern power systems. This paper proposes a self-adaptive energy management strategy based on deep reinforcement learning (DRL) to integrate renewable energy sources into a system comprising compressed air energy storage, battery energy storage systems, and solid oxide fuel cells. However, the basic deep deterministic policy gradient algorithm lacks sensitivity to environmental changes, particularly when there is a mismatch in module capacity within the system. This limitation may affect the proper selection of the charging and discharging actions for the hybrid energy storage system. Thus, some modifications are dedicated to the careful replay buffer design in the basic algorithm, improving the ability to identify subtle changes in the reward function. The proposed method is also compared with other DRL methods to validate the feasibility and effectiveness. The simulation results demonstrate the compatibility of the improved algorithm with the proposed energy management strategy and better performance in terms of economic benefits.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117445","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

Effective sizing and optimization of hybrid renewable energy sources for micro distributed generation system

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-16 DOI: 10.1049/rpg2.13193

Shanmuganatha Vadivel Kasi, Narottam Das, Sanath Alahakoon, Nur Hassan

{"title":"Effective sizing and optimization of hybrid renewable energy sources for micro distributed generation system","authors":"Shanmuganatha Vadivel Kasi, Narottam Das, Sanath Alahakoon, Nur Hassan","doi":"10.1049/rpg2.13193","DOIUrl":"https://doi.org/10.1049/rpg2.13193","url":null,"abstract":"Renewable energy sources (RES) are vital for addressing fossil fuel challenges and promoting environmental sustainability by reducing air pollution. Hybrid RES (HRES) in microgrids (MGs) enhance energy efficiency and reliability but face issues like energy management, load demand, and efficiency. Existing research on HRES in MGs often lacks efficiency, reliability, and accuracy. This model proposes a solution using ant lion colony optimization with particle swarm optimization (ALCO-PSO) for Maximum Power Point Tracking (MPPT) to improve power efficiency. The ant colony optimization (ACO) algorithm offers higher efficiency and better global search, but suffers from limitations such as computational complexity and premature convergence. The lion optimization algorithm (LOA) addresses these issues, enhancing the algorithm's robustness. However, ALCO faces challenges like limited scalability and global search ability, which are overcome by integrating particle swarm optimization (PSO). Additionally, direct current (DC) fault detection is enhanced using an artificial neural network (ANN) with solar data. The model's performance is evaluated using power, voltage, and power quality metrics, achieving 99.56% accuracy, faster convergence (0.11 s), an oscillation around 4.25 W, a tracking time of 0.2 s, an interruptible load of 0.009%, cost of energy (COE) of 0.0413%, and a penalty of 0.94 $/kWh.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115387","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

Integrating the strategic response of parking lots in active distribution networks: An equilibrium approach

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-16 DOI: 10.1049/rpg2.13195

Marcos Tostado-Véliz, Rohit Bhakar, Mohammad Sadegh Javadi, Ali Esmaeel Nezhad, Francisco Jurado

{"title":"Integrating the strategic response of parking lots in active distribution networks: An equilibrium approach","authors":"Marcos Tostado-Véliz, Rohit Bhakar, Mohammad Sadegh Javadi, Ali Esmaeel Nezhad, Francisco Jurado","doi":"10.1049/rpg2.13195","DOIUrl":"https://doi.org/10.1049/rpg2.13195","url":null,"abstract":"The increasing penetration of electric vehicles will be accompanied for a wide deployment of charging infrastructures. Large charging demand brings formidable challenges to existing power networks, driving them near to their operational limits. In this regard, it becomes pivotal developing novel energy management strategies for active distribution networks that take into account the strategic behaviour of parking lots. This paper focuses on this issue, developing a novel energy management tool for distribution networks encompassing distributed generators and parking lots. The new proposal casts as a tri-level game equilibrium framework where the profit maximization of lots is implicitly considered, thus ensuring that network-level decisions do not detract the profit of parking owners. The original tri-level model is reduced into a tractable single-level mixed-integer-linear programming by combining equivalent primal-dual and first-order optimality conditions of the distribution network and parking operational models. This way, the model can be solved using off-the-shelf solvers, with superiority against other approaches like metaheuristics. The developed model is validated in well-known 33-, and 85-bus radial distribution systems. Results show that, even under unfavourable conditions with limited distributed generation, charging demand is maximized, thus preserving the interests of parking owners. Moreover, the model is further validated through a number of simulations, showing its effectiveness. Finally, it is demonstrated that the developed tool scales well with the size of the system, easing its implementation in real-life applications.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115771","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 method for determining stability range of grid-side converter parameters of PMSG based on negative feedback modelling of phase-locked loop and outer control loop

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-15 DOI: 10.1049/rpg2.13191

Xumeng Cui, Lei Chen, Yong Min

{"title":"A method for determining stability range of grid-side converter parameters of PMSG based on negative feedback modelling of phase-locked loop and outer control loop","authors":"Xumeng Cui, Lei Chen, Yong Min","doi":"10.1049/rpg2.13191","DOIUrl":"https://doi.org/10.1049/rpg2.13191","url":null,"abstract":"Direct-drive wind farms are integrated into power grid through power electronic devices, extensively utilizing voltage source converters (VSCs) for grid connection, which has precipitated frequent stability challenges within the grid integration systems of wind farms; it is imperative to properly tune the VSC parameters consequently. In grid-connected VSC system, the interaction between phase-locked loop (PLL) and outer control loop (OCL) has a significant impact on system stability. Therefore, it is essential to account for the interactions when establishing the stability boundaries for VSC parameters. This article proposes a new method to determine the parameter stability range in grid-side converter of direct-drive permanent magnet synchronous generator (PMSG), based on the interactions between PLL and OCL. This method simplifies the modelling process and improves the accuracy of stability range calculations compared to traditional methods. The system is modelled as a negative feedback system with PLL as the forward path and OCL as the feedback path. Both paths include grid dynamics. This modelling approach not only captures the interaction between PLL and OCL, but is also straightforward and clear. Using the Bode diagram, stability mechanism of the system considering interaction between PLL and OCL is studied. The VSC parameter stability criterion of the system is analysed based on the open-loop frequency characteristics of the system. Then an analytical description of the stability range for parameters is provided. Simulation results confirm the effectiveness of our proposed method.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115121","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

Voltage support strength analysis and stability control strategy for grid-forming wind power transmission system

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-15 DOI: 10.1049/rpg2.13194

Xiangyu Zhang, Jiahui Wu, Yuan Fu

引用次数: 0

Control strategy of frequency and DC voltage for interfacing converter of hybrid AC/DC microgrid based on improved virtual synchronous generator

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-11 DOI: 10.1049/rpg2.13190

Sina Ashrafi, Seyed Ali Mousavi-Rozveh, Amir Khorsandi, Seyed Hossein Hosseinian

{"title":"Control strategy of frequency and DC voltage for interfacing converter of hybrid AC/DC microgrid based on improved virtual synchronous generator","authors":"Sina Ashrafi, Seyed Ali Mousavi-Rozveh, Amir Khorsandi, Seyed Hossein Hosseinian","doi":"10.1049/rpg2.13190","DOIUrl":"https://doi.org/10.1049/rpg2.13190","url":null,"abstract":"Integrating renewable resources in microgrids (MGs) poses a substantial challenge: ensuring stability with low inertia. This paper provides control techniques for the AC frequency and the DC voltage for an isolated/islanded hybrid AC/DC MG using intelligent virtual synchronous generators (VSGs) and intelligent virtual capacitors (VCs). The suggested approaches take advantage of VSG's adaptive damping coefficient and VC's adaptive virtual resistance as defined by intelligent controls. The controllers operate independently, relying solely on local DC voltage and AC frequency measurements without additional communication infrastructure. Compared to the traditional VSG and VC, the hybrid MG with intelligent VSG and VC controls performs better in suppressing AC frequency and DC voltage deviations, regardless of operating mode (rectifier or inverter). Simulation studies in MATLAB/Simulink validate these findings, showing that the artificial neural network (ANN) approach reduces DC voltage deviation by 34.4% and AC frequency deviation by 26.3%, while the fuzzy logic control (FLC) approach further reduces these deviations, particularly DC voltage deviation by 41.9% and AC frequency deviation by 23.2%. ANN excels in reducing deviations for AC frequency, while FLC is more effective in lowering deviations for DC voltage. The proposed controllers' positive impact on system stability is assessed using small-signal stability analysis.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114291","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

Dynamic event-triggered-based adaptive frequency control of microgrids under cyber-attacks via adaptive dynamic programming

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-04 DOI: 10.1049/rpg2.13187

Zemeng Mi, Hanguang Su, Qiuye Sun, Yuliang Cai, Zhongyang Ming

{"title":"Dynamic event-triggered-based adaptive frequency control of microgrids under cyber-attacks via adaptive dynamic programming","authors":"Zemeng Mi, Hanguang Su, Qiuye Sun, Yuliang Cai, Zhongyang Ming","doi":"10.1049/rpg2.13187","DOIUrl":"https://doi.org/10.1049/rpg2.13187","url":null,"abstract":"The increasing penetration of renewable energy sources (RES) and the development of the cyber-physical microgrids (CPMs) make greater demands for frequency control of microgrids. The common approach for frequency control is controlling the micro-turbine to compensate for frequency deviations, with energy storage systems serving as an auxiliary approach. This article proposes an online adaptive frequency control method to control the governor and energy storage to realize the frequency recovery of microgrid, subject to the external unknown disturbances caused by wind turbine, power load and false data injection (FDI) attacks. First, the non-zero sum (NZS) games of the considered system are modeled in this work, where the unknown disturbances are also taken into account. For the sake of estimating the unknown disturbances, a disturbance observer (DOB) for the microgrid system is introduced. Then, on the basis of the estimated results of the applied DOB, the disturbance compensation input is derived to offset the interference of the unknown disturbance. Meanwhile, the adaptive dynamic programming (ADP) approach is employed to derive the adaptive optimal control input for the NZS games of microgrid system. Besides, the dynamic event-triggered (DET) control is introduced, reducing the occupation of computing resources. By utilizing the Lyapunov's method, the stability of the closed-loop system, the convergence of the estimation weight, the estimation disturbances and the system state are guaranteed. The effectiveness of the proposed method is ultimately verified by the simulation results.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13187","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111986","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

Droop control strategy in inverter-based microgrids: A brief review on analysis and application in islanded mode of operation

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-03 DOI: 10.1049/rpg2.13186

Ghazanfar Shahgholian, Mohammadreza Moradian, Arman Fathollahi

{"title":"Droop control strategy in inverter-based microgrids: A brief review on analysis and application in islanded mode of operation","authors":"Ghazanfar Shahgholian, Mohammadreza Moradian, Arman Fathollahi","doi":"10.1049/rpg2.13186","DOIUrl":"https://doi.org/10.1049/rpg2.13186","url":null,"abstract":"Droop control is at the first level of the control hierarchy and does not require communication. Having high reliability, is usually used in inverter-based microgrids. The microgrid can operate as an island, and it can also be connected to the main or auxiliary grid. By reviewing the extensive literature on the role of the controller in inverter-based microgrids for the island mode of operation, in this study, the droop regulation strategy has been covered briefly and compactly. Droop regulation is an example of decentralized regulation in basic control, and its importance is revealed in the island mode of operation when it is possible to share power in all facilities without needing to communicate with other units. Disadvantages of common droop control, such as slow transient dynamics and low energy quality for non-linear and unbalanced loads, have limited its use in advanced microgrids. Therefore, various methods to improve the common droop control have been investigated so far, some of which have been mentioned. This study highlights the application of droop control strategies in order to coordinate distributed generation units in the microgrid. About 180 published studies in this field have been reviewed, classified and indexed for quick reference.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13186","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111485","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

Exergy analysis of isochoric and isobaric adiabatic compressed air energy storage

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-03 DOI: 10.1049/rpg2.13184

Edward Barbour, Maury M. Oliveira Jr, Bruno Cardenas, Daniel Pottie

{"title":"Exergy analysis of isochoric and isobaric adiabatic compressed air energy storage","authors":"Edward Barbour, Maury M. Oliveira Jr, Bruno Cardenas, Daniel Pottie","doi":"10.1049/rpg2.13184","DOIUrl":"https://doi.org/10.1049/rpg2.13184","url":null,"abstract":"Adiabatic compressed air energy storage (ACAES) is an energy storage technology that has the potential to play an important role in the transition to a predominantly renewables-driven net-zero energy system. However, it has not yet achieved the performance necessary to be widely deployed. This paper undertakes an exergy analysis of isobaric and isochoric ACAES systems, tracking lost work through the components and exploring the influences of different design choices. Three different configurations are modelled: (1) 3 compression and 3 expansion stages; (2) 4 compression and 2 expansion stages; and (3) 2 compression and 4 expansion stages. These results illustrate that isobaric systems are likely to have higher round-trip efficiency and significantly higher energy density, at the cost of achieving isobaric storage. Exergy analysis reveals that most of the losses arise in the compressors, compressor aftercoolers and expanders. Losses in aftercoolers are exaggerated when compressors operate with high-pressure ratios, emphasizing that the choice of TES is a key system variable. With pressurised water as the coolant and TES fluid, it seems likely that the best system will have more compression than expansion stages. Increasing the number of compression stages decreases the off-design penalty when the system is isochoric.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.13184","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111486","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

Determination of optimal island regions with simultaneous DG allocation and reconfiguration in power distribution networks

IF 2.6 4区工程技术

IET Renewable Power Generation Pub Date : 2025-01-03 DOI: 10.1049/rpg2.12942

Murat Cikan, Nisa Nacar Cikan, Bedri Kekezoglu

{"title":"Determination of optimal island regions with simultaneous DG allocation and reconfiguration in power distribution networks","authors":"Murat Cikan, Nisa Nacar Cikan, Bedri Kekezoglu","doi":"10.1049/rpg2.12942","DOIUrl":"https://doi.org/10.1049/rpg2.12942","url":null,"abstract":"The rising demand for electric energy and environmental pollution concerns have led to using renewable energy-based distributed generators (DGs) in power distribution networks (PDN). However, the power flow may become bidirectional (non-radial) by introducing the DGs into the system, which may cause instability in the system's operation. System instability causes an increase in system losses and implies a rising in costs. This paper proposes a methodology using Moth Flame Optimizer and Equilibrium Optimizer to reconfigure the PDN, optimizing the siting, sizing, and power factor of multiple DGs to maintain radial mode operation. Determining DGs' allocation within a radial system by optimizing multi-parameters simultaneously leads to minimizing losses, enhancing reliability, and improving the stability of the network. Thus, the number of affected customers in a catastrophic power outage or emergency blackout scenarios can be minimized. The method has been tested on a 33-bus distribution system where four different scenarios with three cases for each are studied to show the performance of the proposed method. The method's effectiveness is demonstrated by minimizing power loss, enhancing the voltage stability index, assuring reliability, and improving the voltage profile. Moreover, the accuracy of reliability index calculation results is confirmed with the commercial software ETAP.","PeriodicalId":55000,"journal":{"name":"IET Renewable Power Generation","volume":"19 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rpg2.12942","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111487","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