Electric Power Systems Research最新文献_第6页

Leveraging battery storage to provide green inertia in DC microgrids: Innovative grid-forming converter strategies

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-23 DOI: 10.1016/j.epsr.2025.111626

Hesam Pishbahar, Siroos Hemmati, Hedayat Saboori

{"title":"Leveraging battery storage to provide green inertia in DC microgrids: Innovative grid-forming converter strategies","authors":"Hesam Pishbahar, Siroos Hemmati, Hedayat Saboori","doi":"10.1016/j.epsr.2025.111626","DOIUrl":"10.1016/j.epsr.2025.111626","url":null,"abstract":"<div><div>DC microgrids are at the cutting edge of power industry innovation, offering unparalleled efficiency and integration potential for modern energy systems. Despite their advantages, the critical challenge of the lack of inherent inertia persists, compromising system stability. An innovative and essential sustainability solution, green inertia, has been introduced to address this issue. By leveraging grid-forming converters and simulating the properties of rotating masses, this idea allows modern grids to move away from fossil fuels towards a more sustainable future without compromising sustainability. This study introduces the application of green inertia within four state-of-the-art grid-forming DC-DC converters designed for battery integration. These include the Buck-Boost (BUBO), Single- and Three-phase Dual Active Bridge (DAB and ThPh-DAB), and the Dual Active Half-Bridge (DAHB). Leveraging the Virtual Compound DC Machine (VCDCM), this research introduces novel inertia emulation techniques, marking the first implementation of VCDCM in DAB, ThPh-DAB, and DAHB converters. Extensive simulations highlight the effectiveness of these converters in stabilizing DC microgrid performance while balancing technical efficiency and cost-effectiveness. This work redefines the role of grid-forming converters and sets a foundational framework for next-generation DC microgrids, paving the way for resilient and adaptive power systems.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111626"},"PeriodicalIF":3.3,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal active and reactive power scheduling for inverter-integrated PV and BESS under inverter current constraints

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-22 DOI: 10.1016/j.epsr.2025.111629

Sezai Polat , Emrah Biyik , Hacer Şekerci Öztura

{"title":"Optimal active and reactive power scheduling for inverter-integrated PV and BESS under inverter current constraints","authors":"Sezai Polat , Emrah Biyik , Hacer Şekerci Öztura","doi":"10.1016/j.epsr.2025.111629","DOIUrl":"10.1016/j.epsr.2025.111629","url":null,"abstract":"<div><div>The intermittent nature of renewable energy complicates grid integration, requiring an efficient Energy Management System (EMS). This study addresses day-ahead EMS in distribution systems (DS) with a focus on active and reactive power scheduling, utilizing the reactive power support of inverters in Photovoltaic (PV) and Battery Energy Storage Systems (BESS). A novel current-based method is proposed, accounting for current limits, bus voltage, inverter lifetime reduction costs, and inverter losses modeled as load. This method impacts load flow, bus voltage, and voltage-dependent loads, enabling optimal decisions for compensating inverter losses via the grid, BESS, or PV. Simulations on the IEEE 33 test system show a 5% reduction in inverter losses with the current-based method and 6% with the traditional power-based method. Inverter lifetime reduction costs were minimized by 42% and 58% with the current- and power-based methods, respectively, under summer conditions. In winter, reductions reached 49% and 14%. Crucially, inverter output depends on bus voltage, challenging the assumption of constant rated power. At voltages below 1.00 p.u., inverters underperform, achieving only 209 kVA of a 215 kVA rating. These findings emphasize the need for accurate modeling to improve EMS performance and reliability in renewable energy systems.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111629"},"PeriodicalIF":3.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-scenario stochastic assessment of operational risk of integrated energy system based on R-vine Copula

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-21 DOI: 10.1016/j.epsr.2025.111569

Zhuoxiang Wu, Shunfu Lin, Jin Tan, Dongdong Li

{"title":"Multi-scenario stochastic assessment of operational risk of integrated energy system based on R-vine Copula","authors":"Zhuoxiang Wu, Shunfu Lin, Jin Tan, Dongdong Li","doi":"10.1016/j.epsr.2025.111569","DOIUrl":"10.1016/j.epsr.2025.111569","url":null,"abstract":"<div><div>Fluctuations in new energy supply and uncertainties in multi-energy load demands introduce various operational risks to integrated energy systems. This paper proposes a comprehensive approach for multi-scenario stochastic assessment of these operational risks. Firstly, an indicator system for assessing operational risks considering safety, reliability, and economy is established. Secondly, considering the uncertainty and correlativity among risk factors, such as wind and solar power output, electricity, gas, and heat demand, a non-parametric kernel density estimation and Gaussian distribution are applied to form marginal probability distributions. A joint probability distribution is generated based on the R-vine copula function. Moreover, Monte Carlo sampling is employed to derive typical daily operational scenarios through clustering. Finally, considering the stochastic nature of diverse scenarios, the comprehensive operational risk value of the integrated energy system is quantitatively calculated using the AHP-TOPSIS method. A case study on an integrated electricity-gas-heat energy system, comprising an improved IEEE 30-bus power system, a Belgian 20-node natural gas network, and a 6-node heat network, validate the effectiveness of the proposed assessment method.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111569"},"PeriodicalIF":3.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Comprehensive Technical Risk Indices and Advanced Methodologies for Power System Risk Management” [Electric Power Systems Research volume (2025) 111534 –111566]

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-21 DOI: 10.1016/j.epsr.2025.111591

Elaheh Yaghoubi , Elnaz Yaghoubi , Mohammad Reza Maghami , Mehdi Zareian Jahromi

引用次数: 0

Bridging energy and mobility: Optimizing operation of centralized and mobile battery swapping stations in Berlin network

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-21 DOI: 10.1016/j.epsr.2025.111627

Mustafa Cagatay Kocer , Hakan Gultekin , Sahin Albayrak , Ahmet Onen

{"title":"Bridging energy and mobility: Optimizing operation of centralized and mobile battery swapping stations in Berlin network","authors":"Mustafa Cagatay Kocer , Hakan Gultekin , Sahin Albayrak , Ahmet Onen","doi":"10.1016/j.epsr.2025.111627","DOIUrl":"10.1016/j.epsr.2025.111627","url":null,"abstract":"<div><div>This paper proposes an innovative approach to optimizing the operations of a central battery swapping station (BSS) and its affiliated mobile battery swapping stations (MBSS) in the urban environment. The principal aim is to maximize the profit of the BSS, focusing on enhancing revenue through energy sales to the grid and effective battery swapping operations, facilitated by MBSS that are strategically deployed across Berlin, Germany. The decision-making paradigm integrates spatial considerations based on the population distribution of different regions, thus predicting their battery swapping demand. To accommodate this demand, MBSS are loaded with a determined number of batteries. As these batteries are depleted, MBSS return to the BSS to deposit empty units and procure fully-charged ones. The BSS, in its operational dynamics, holds these depleted batteries, strategically charging them based on dynamic energy prices to optimize grid sales and increase revenue. A mixed integer programming model has been formulated and developed to offer a systematic solution to this multifaceted problem. Results show that Case Study I prioritizes battery swap operations, while Case Study II allocates more capacity to energy sales. Ultimately, Case Study I achieves higher profitability than Case Study II, despite the latter’s increased energy sales revenue. The findings presented here not only pave the way for a more efficient electric vehicle (EV) adoption infrastructure but also underscore the potential financial benefits of such a system when interfaced with the power grid.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111627"},"PeriodicalIF":3.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 on DC-side oscillation suppression strategy of MMC-HVDC based on composite virtual impedance

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-20 DOI: 10.1016/j.epsr.2025.111620

Yixin Zhu, Yuxuan Zeng, Yujie Chen, Xinyue Li

{"title":"Research on DC-side oscillation suppression strategy of MMC-HVDC based on composite virtual impedance","authors":"Yixin Zhu, Yuxuan Zeng, Yujie Chen, Xinyue Li","doi":"10.1016/j.epsr.2025.111620","DOIUrl":"10.1016/j.epsr.2025.111620","url":null,"abstract":"<div><div>Stability issues in flexible DC transmission systems are increasingly critical, with numerous projects experiencing low-frequency DC-side oscillations. This paper presents a composite virtual impedance controller designed to mitigate such oscillations in Modular Multilevel Converter (MMC)-based DC transmission systems. Unlike traditional controllers, our strategy significantly enhances MMC damping characteristics, thereby improving steady-state performance at frequencies prone to oscillations. Utilizing the multi-harmonic linearization method, we develop a DC-side impedance model that accounts for frequency coupling and integrates circulating current suppression, inner and outer loop controllers, and a phase-locked loop, extending to two-terminal MMC back-to-back DC transmission systems. Through impedance analysis, we identify the mechanisms underlying stability issues and propose the composite virtual impedance controller as an effective suppression strategy. Comparative evaluations demonstrate the superior effectiveness of our approach over traditional virtual impedance strategies. MATLAB/Simulink simulations validate the accuracy of the impedance modeling and the efficacy of the composite controller, while also assessing the impact of controller parameters on system dynamics.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111620"},"PeriodicalIF":3.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Network-constrained local energy market clearing for peer-to-peer trading with bilateral power losses

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-20 DOI: 10.1016/j.epsr.2025.111600

Md Habib Ullah , Jae-Do Park

{"title":"Network-constrained local energy market clearing for peer-to-peer trading with bilateral power losses","authors":"Md Habib Ullah , Jae-Do Park","doi":"10.1016/j.epsr.2025.111600","DOIUrl":"10.1016/j.epsr.2025.111600","url":null,"abstract":"<div><div>Recently, local energy trading in smart grids has gained substantial attention, enabling producers and consumers to trade energy privately in local energy markets (LEM). A comprehensive market clearing mechanism with an efficient energy pricing scheme is required for realistic, fair, and practical LEM operations, as there are various aspects related to the grid to consider. Therefore, this paper presents a network-constrained LEM clearing algorithm through peer-to-peer (P2P) negotiation between the producers and consumers. In this paper, a market-clearing optimization problem is formulated based on social welfare maximization, and we propose a distributed scheme based on dual decomposition to solve the problem that ensures optimality compared to the centralized approach. The proposed market-clearing approach considers power losses in the physical network for each bilateral trade using power transfer distribution factors. Since producers and consumers are bound to pay for third-party networks, an electrical distance-based network utilization charge (NUC) is designed, which may facilitate the reduction of power losses in P2P energy trading. The proposed NUC provides 2%–4% efficient operation compared to the NUCs in the existing literature. The effectiveness of the proposed approach is justified through the simulation with IEEE 14-, 33-, 39-, and 141-bus systems that converge in 1–5 s for those test systems.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111600"},"PeriodicalIF":3.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A flexible contact switching method of integrated control mode for enhancing the FRT capability of GFM-controlled DFIG

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-20 DOI: 10.1016/j.epsr.2025.111636

Long Xian , Lizhen Wu , Wei Chen , Tingting Pei , Xingfeng Xie

{"title":"A flexible contact switching method of integrated control mode for enhancing the FRT capability of GFM-controlled DFIG","authors":"Long Xian , Lizhen Wu , Wei Chen , Tingting Pei , Xingfeng Xie","doi":"10.1016/j.epsr.2025.111636","DOIUrl":"10.1016/j.epsr.2025.111636","url":null,"abstract":"<div><div>This research addresses the issue of poor fault ride-through (FRT) performance of doubly fed induction generators (DFIGs) when utilizing grid-forming (GFM) control. By integrating the traditional grid-following vector control, which boasts strong FRT capabilities and mature technology, along with its supporting hardware auxiliary equipment, an innovative flexible contact switching method for an integrated control mode is proposed. This method focuses on key indicators during the FRT process, considering the different stages of the FRT period and the impact of voltage dip severity. Based on an in-depth analysis of the fundamental mechanisms causing rotor-side overcurrent during FRT, a uniformly formatted differential current-limiting term is designed that can seamlessly apply to both control modes. Switching between control modes is achieved by introducing a resistor-capacitor crowbar and adding a state-following module to the control structure. Additionally, during the FRT, the reactive power-voltage characteristics exhibited by GFM control provide a basis for improving the integrated matching strategy of the grid-side converter. Therefore, the researched method is not a simple temporal juxtaposition of the two modes, but a deeply contacted switching method. Finally, simulation experiments fully demonstrate the effectiveness and correctness of the researched method in enhancing the FRT capability of GFM-controlled DFIGs.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111636"},"PeriodicalIF":3.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing grid versatility: Role of thermostatically controlled loads in virtual energy storage systems

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-19 DOI: 10.1016/j.epsr.2025.111602

Praveenkumar Rajendiran, Vijayakumar Krishnasamy

{"title":"Enhancing grid versatility: Role of thermostatically controlled loads in virtual energy storage systems","authors":"Praveenkumar Rajendiran, Vijayakumar Krishnasamy","doi":"10.1016/j.epsr.2025.111602","DOIUrl":"10.1016/j.epsr.2025.111602","url":null,"abstract":"<div><div>Increasing electricity demand leads to a rise in power generation, particularly during peak hours, making it challenging to balance supply and demand. This often results in a mismatch between electricity production and consumption. Renewable energy sources (RES) generate electricity, but their intermittent nature limits effectiveness during peak demand periods. Excess energy from RES is stored in energy storage systems (ESS) that can be used during high-demand times, yet their capacity is limited. Large-scale storage is necessitated because of growing demand, which results in high capital costs and lowered lifespan, increasing the complications in bringing equilibrium between power generation and distribution. Demand response management (DRM) is a viable alternative method, which shifts the non-essential electrical loads to off-peak periods to reduce demand. Air Conditioners (ACs) and refrigerators are under thermostatically controlled loads (TCLs) to form a virtual energy storage system (VESS) and serve the purpose of DRM. VESS, along with DRM, optimizes energy usage instead of increasing supply. Although methods like linear regression, support vector machines, and neural networks have been explored for energy prediction, they often struggle with the complexities of TCLs behavior, especially under dynamic grid conditions. This study proposes a novel gradient-boosted neural networks (GBNN) model designed to more accurately predict TCLs self-discharge capacity, offering a more reliable solution for energy optimization and grid management. The proposed GBNN model achieves higher accuracy, as evidenced by a lower root mean square error (RMSE) of <span><math><mrow><mn>4</mn><mo>.</mo><mn>34</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> and a higher coefficient of performance (<span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>) of 0.9966.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111602"},"PeriodicalIF":3.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wavelet-based time-domain double-fed induction generator differential protection

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-19 DOI: 10.1016/j.epsr.2025.111622

R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros

{"title":"Wavelet-based time-domain double-fed induction generator differential protection","authors":"R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros","doi":"10.1016/j.epsr.2025.111622","DOIUrl":"10.1016/j.epsr.2025.111622","url":null,"abstract":"<div><div>Double-fed induction generators (DFIGs) must remain connected to the grid for a specific time during faults on the grid but must be immediately disconnected during short circuits inside of their protection zone, such as faults in the stator or rotor windings, to reduce potential damage risks. Currently, there is no reliable solution to discern whether a fault is external or internal to the DFIG protection zone. The differential protection appears suitable for this purpose, yet few studies have applied this protection to DFIGs. Additionally, there is insufficient evidence regarding the effectiveness of differential protection schemes in detecting faults in DFIG. This paper introduces a new algorithm for protecting the DFIG in the time domain using wavelets. The method utilizes high- and low-frequency components of the stator and rotor currents on the d- and q-axis to offer fast and dependable protection for the DFIG. The proposed approach was compared to existing differential protection regarding success rate and average response time across various events, including faults on the grid and turn-to-turn faults on the stator and rotor. The results indicate that the proposed protection outperforms the existing one and is the fastest in detecting turn-to-turn faults on the stator and rotor windings.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111622"},"PeriodicalIF":3.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0