International Journal of Electrical Power & Energy Systems最新文献

Contract-aware economic scheduling and service settlement for post-disaster restoration of distribution-level virtual power plants 分布式虚拟电厂灾后恢复的合同经济调度与服务结算

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-10-01 Epub Date: 2026-11-03 DOI: 10.1016/j.ijepes.2026.112265

Mingqian Xu, Minghao Li, Gengfeng Li, Yiheng Bian, Yuxiong Huang, Hongsen Wang

{"title":"Contract-aware economic scheduling and service settlement for post-disaster restoration of distribution-level virtual power plants","authors":"Mingqian Xu, Minghao Li, Gengfeng Li, Yiheng Bian, Yuxiong Huang, Hongsen Wang","doi":"10.1016/j.ijepes.2026.112265","DOIUrl":"10.1016/j.ijepes.2026.112265","url":null,"abstract":"<div><div>Post-disaster restoration must balance limited electricity supply with virtual power plant (VPP) service commitments. This paper proposes a scenario based mixed-integer scheduling framework linking energy delivered to customer classes with service revenue, outage compensation, and soft minimum service targets. Building on established methods for line repair, radial reconfiguration, distributed generation, stationary storage, and mobile storage, it adds a settlement layer connecting operational decisions to service contracts. Physical restoration, cash profit, and compliance penalties are evaluated separately under consistent rules. Tests on IEEE 33-bus and 118-bus distribution systems show that fixed and mobile resources reduce unserved energy, while differentiated contracts influence allocation among customer classes. Positive cash returns may occur even when service targets are missed. Sensitivity studies examine scenario weights, prices, compensation rates, and contract components. An angle-free second-order-cone branch-flow reoptimization reports voltage bounds and conic-relaxation residuals separately from the active-power baseline. Within the constructed stress tests and stated equipment assumptions, the framework provides transparent decision support for balancing restoration, settlement, and service compliance.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"183 ","pages":"Article 112265"},"PeriodicalIF":5.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149314646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Accelerating AC-feasible unit commitment via global model updates and local constraint corrections 通过全局模型更新和局部约束修正加速交流可行单元承诺

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-09-23 DOI: 10.1016/j.ijepes.2026.112184

Miao Cheng, Chenxi Hu, Xin Cui, Francis Yunhe Hou

{"title":"Accelerating AC-feasible unit commitment via global model updates and local constraint corrections","authors":"Miao Cheng, Chenxi Hu, Xin Cui, Francis Yunhe Hou","doi":"10.1016/j.ijepes.2026.112184","DOIUrl":"10.1016/j.ijepes.2026.112184","url":null,"abstract":"<div><div>This paper proposes a Global-Local AC Unit Commitment (GL-ACUC) correction mechanism for AC unit commitment (ACUC) under the master surrogate UC problem–AC feasibility check subproblem paradigm. The master surrogate UC problem uses a linear network surrogate built from Taylor-expanded AC power flow equations together with polygon-based approximations of line-flow limits, and the AC feasibility check subproblem validates candidate commitment and dispatch schedules on the full AC network. To improve model fidelity without repeatedly destabilizing the mixed-integer feasible region, we coordinate two complementary correction actions within the GL-ACUC correction mechanism. The global model update refreshes the reference operating state and recomputes the associated Jacobian information to enhance global consistency between the linear surrogate and AC physics. The local constraints correction then repairs residual AC violations through targeted limit tightening, providing fine-grained feasibility adjustments with minimal disturbance to the master surrogate UC problem structure. Case studies on the IEEE 57-bus benchmark system demonstrate that the proposed GL-ACUC correction mechanism reduces linearization errors and constraint violations, improves AC feasibility and convergence stability, and achieves lower operating cost with fewer outer iterations than the baseline linear surrogate, while an ablation study confirms that the global model update and the local constraints correction are complementary and that a single global update eliminates the AC power-flow divergence induced by local tightening alone. The same behavior is reproduced on the larger 200-bus ACTIVSg200 system, indicating that the coordinated correction scales to larger networks.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112184"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149055336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 short-term net load forecasting method for power systems considering photovoltaic power output under typhoon weather conditions 考虑台风天气下光伏发电出力的电力系统短期净负荷预测方法

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-02 DOI: 10.1016/j.ijepes.2026.112206

Haoyang Fan, Xin Guan, Tao Wang, Qiang Jiang, Haoxin Xiao, Pinyue Xiang

{"title":"A short-term net load forecasting method for power systems considering photovoltaic power output under typhoon weather conditions","authors":"Haoyang Fan, Xin Guan, Tao Wang, Qiang Jiang, Haoxin Xiao, Pinyue Xiang","doi":"10.1016/j.ijepes.2026.112206","DOIUrl":"10.1016/j.ijepes.2026.112206","url":null,"abstract":"<div><div>Accurate short-term net load forecasting is crucial for reliable power system dispatching and operation. To address the forecasting difficulty caused by photovoltaic output fluctuations and typhoon weather, this paper proposes a hybrid indirect forecasting framework based on a full-convolutional temporal convolutional network (FTCN) and a bidirectional long short-term memory network (BiLSTM). The FTCN module is used to extract multivariate temporal features from load, photovoltaic and meteorological time-series data, while the BiLSTM module further captures nonlinear temporal dependencies. Meteorological variables are selected through correlation analysis and incorporated into the corresponding load and photovoltaic forecasting branches. Validation is performed using measured load, photovoltaic and meteorological data from a coastal region, including seven real typhoon events during 2023–2024. Comparative experiments under normal and typhoon weather conditions show that the proposed FTCN-BiLSTM model achieves lower forecasting errors than the baseline models considered in this study, indicating its potential for short-term net load forecasting under typhoon-affected conditions.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112206"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149157033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Multi-timescale flexibility for low-carbon Nordic energy systems: comparative roles of batteries, district heating, and hydropower 北欧低碳能源系统的多时间尺度灵活性：电池、区域供热和水电的比较作用

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-05 DOI: 10.1016/j.ijepes.2026.112212

Tareq Anwar Shikdar, Hannu Laaksonen

{"title":"Multi-timescale flexibility for low-carbon Nordic energy systems: comparative roles of batteries, district heating, and hydropower","authors":"Tareq Anwar Shikdar, Hannu Laaksonen","doi":"10.1016/j.ijepes.2026.112212","DOIUrl":"10.1016/j.ijepes.2026.112212","url":null,"abstract":"<div><div>The Nordic power system is undergoing a rapid transition toward high shares of variable renewable energy and widespread electrification of heating, transport, and industry. While extensive hydropower resources provide a strong foundation for system flexibility, declining synchronous inertia and pronounced winter demand peaks introduce new challenges for both operational stability and long-term adequacy. Consequently, ensuring reliable operation increasingly depends on the coordinated deployment of complementary flexibility resources across multiple temporal horizons rather than expansion of any single technology.</div><div>This paper presents a systematic review of literature published between 2019 and 2026 and develops a review-based multi-timescale classification that links grid service requirements with the operational capabilities of battery energy storage systems (BESS), district heating with thermal energy storage (TES), and hydropower reservoirs. The synthesis shows that BESS primarily supports fast frequency response and short-term congestion management, TES provides demand shifting and peak reduction over hourly-to-daily timescales, and hydropower delivers long-duration balancing and seasonal adequacy.</div><div>The review further identifies that current electricity market structures tend to prioritize short-duration stability services while undervaluing longer-duration flexibility, potentially creating a mismatch between investment incentives and evolving system requirements. By integrating evidence across multiple operational timescales, the proposed classification provides a unified framework for evaluating complementary flexibility resources and offers practical insights for system planning, market design, and the reliable operation of renewable-dominated low-carbon power systems..</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112212"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149157071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 topology-aware benders decomposition framework for frequency-feasible sequential service restoration using networked inverter-dominated microgrids 基于网络逆变器控制的微电网频率可行顺序服务恢复的拓扑感知弯曲分解框架

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-10 DOI: 10.1016/j.ijepes.2026.112213

Guannan Lou, Kai Ma, Jingtao Zhao, Shu Zheng

{"title":"A topology-aware benders decomposition framework for frequency-feasible sequential service restoration using networked inverter-dominated microgrids","authors":"Guannan Lou, Kai Ma, Jingtao Zhao, Shu Zheng","doi":"10.1016/j.ijepes.2026.112213","DOIUrl":"10.1016/j.ijepes.2026.112213","url":null,"abstract":"<div><div>Sequential service restoration (SSR) is essential for post-outage recovery in distribution systems (DSs), during which de-energized sections are restored through the stepwise formation of microgrids (MGs). However, the increasing penetration of inverter-interfaced distributed generation (DG) may limit the frequency-support capability of newly formed MGs, making restoration actions that satisfy steady-state constraints frequency-infeasible. To address this issue, this paper proposes a topology-aware Benders decomposition (TABD) framework for frequency-feasible SSR using networked inverter-dominated MGs. A topology-aware SSR master problem is formulated to determine a candidate restoration schedule while representing the restoration topology of dynamically formed networked MGs. For each formed MG under a candidate restoration topology, a topology-dependent frequency-feasibility subproblem is developed. Hybrid grid-forming (GFM) and grid-following (GFL) frequency–response dynamics are exactly discretized, and frequency-feasibility constraints are imposed over the discretized response trajectory to compute the maximum admissible load step. When the scheduled load pickup of a formed MG exceeds its admissible limit, the subproblem-derived limit is returned to the master problem as a topology-matching Benders cut. The cut excludes frequency-infeasible action only when the same MG topology is reproduced, while changed topologies are allowed to be re-evaluated. In this way, the restoration process is guided toward networked-MG topologies with sufficient frequency-support capability. Numerical results on the modified IEEE 37-bus and IEEE 123-bus test systems validate the effectiveness of the proposed framework.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112213"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149157039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 virtual impedance-based control strategy for stability enhancement of grid-following voltage source converter 基于虚拟阻抗的电网跟随电压源变换器稳定性增强控制策略

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-15 DOI: 10.1016/j.ijepes.2026.112218

Guodong Liu, Namwon Kim, Max Ferrari, Michael R. Starke

{"title":"A virtual impedance-based control strategy for stability enhancement of grid-following voltage source converter","authors":"Guodong Liu, Namwon Kim, Max Ferrari, Michael R. Starke","doi":"10.1016/j.ijepes.2026.112218","DOIUrl":"10.1016/j.ijepes.2026.112218","url":null,"abstract":"<div><div>Against the backdrop of the broad deployment of renewable energy resources and energy storage systems, voltage source converters have been widely employed in recent years. Voltage source converters serve as the essential interface for grid integration; however, their operation — especially that of grid-following voltage source converters — is subject to stability issues in weak grids due to the dynamic interactions between them and the grid. To solve this issue and improve the stability of grid-following voltage source converters under weak grid conditions, we propose a virtual impedance-based control strategy. The approach involves modifying the current reference in the current control loop so that the equivalent impedance seen from the point of common coupling is increased, thereby achieving the same stabilizing effect of the larger inductance while avoiding additional hardware components. This paper outlines state-space model-based small-signal stability analysis and detailed nonlinear time-domain simulation in MATLAB/Simulink performed to verify the effectiveness and accuracy of the proposed virtual impedance-based control strategy for enhancing the stability of grid-following voltage source converters. In addition, a controller hardware-in-the-loop demonstration validates real-time implementability and the relative stability improvement trend with/without the proposed virtual impedance.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112218"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149212693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 joint photovoltaic–load forecasting method with condition-guided spatio-temporal graph learning and controlled feature interaction 一种条件引导时空图学习与受控特征交互的联合光伏负荷预测方法

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-14 DOI: 10.1016/j.ijepes.2026.112204

Boxiang Huang, Weifeng Peng, Yiwen Xie, Shufeng Dong, Qinyong Zhou, Yonghua Song

{"title":"A joint photovoltaic–load forecasting method with condition-guided spatio-temporal graph learning and controlled feature interaction","authors":"Boxiang Huang, Weifeng Peng, Yiwen Xie, Shufeng Dong, Qinyong Zhou, Yonghua Song","doi":"10.1016/j.ijepes.2026.112204","DOIUrl":"10.1016/j.ijepes.2026.112204","url":null,"abstract":"<div><div>Distributed photovoltaic (PV) generation and active power demand jointly affect the net active power demand of distribution networks. However, PV and load forecasting rely on different predictive information, and direct cross-task information sharing may interfere with the learning of their respective representations. This study proposes a joint PV–load forecasting method that combines condition-guided spatio-temporal graph learning with controlled source–load feature interaction. Forecast meteorological information is used to guide historical PV feature aggregation, while periodic reference information guides historical load feature aggregation. The resulting representations interact through mapped and adaptively adjusted features, with stop-gradient controlling backpropagation through the interaction paths. PV, load, and net active power demand losses are further coordinated through uncertainty weighting. Experiments on two actual distribution networks show that the proposed method achieves lower PV and load forecasting errors than the corresponding single-task models and other multi-task baselines across the evaluated forecast horizons. Ablation experiments support the contributions of condition-guided feature extraction, controlled source–load interaction, and joint optimization. The proposed method also yields lower net active power demand errors when the PV and load forecasts are considered together. These results demonstrate the effectiveness of the proposed method for joint PV–load forecasting.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112204"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149212694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Risk-aware feasible region construction and bidding for distribution systems with uncertain renewable generation 具有风险意识的可再生能源发电不确定配电系统可行区域建设与竞价

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-10-12 DOI: 10.1016/j.ijepes.2026.112225

Jia Zhu, Yikui Liu, Yuhan Yuan, Tianqi Liu

{"title":"Risk-aware feasible region construction and bidding for distribution systems with uncertain renewable generation","authors":"Jia Zhu, Yikui Liu, Yuhan Yuan, Tianqi Liu","doi":"10.1016/j.ijepes.2026.112225","DOIUrl":"10.1016/j.ijepes.2026.112225","url":null,"abstract":"<div><div>The large-scale integration of distributed energy resources (DERs) is accelerating the transition of distribution systems from passive loads to active participants in transmission-side operation and market participation. However, this transition is hindered by two key challenges, one arising from renewable generation uncertainty and the other from the need to ensure that market-cleared schedules remain feasible under internal distribution-network constraints. To enable efficient participation in the transmission-side energy market, a risk-aware feasible region construction and bidding method for the distribution side with renewable generation is proposed. A family of risk-dependent power feasible regions is constructed to characterize the power exchange capability of the distribution side at the interconnection bus under renewable generation uncertainty. Based on these regions, a market profit evaluation model is developed to balance potential market revenue against operating costs and deviation penalties. Conditional value-at-risk is incorporated to quantify the tail risk associated with power delivery shortfalls, and the feasible region yielding the highest market profit is selected. The selected feasible region is further converted into a piecewise bidding curve based on the incremental operating cost across different power intervals. Case studies on a modified IEEE 33-bus system demonstrate that the proposed method can coordinate operational feasibility, renewable uncertainty, and market profitability while supporting implementable bidding decisions for the distribution side.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112225"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149212695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 stochastic transmission network planning method considering the virtual power grid modeling of spatial load-shifting capability of data center loads 一种考虑数据中心负荷空间负荷转移能力的虚拟电网随机输电网规划方法

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-09-23 DOI: 10.1016/j.ijepes.2026.112192

Ciwei Gao, Jingyi Li, Xudong Wang, Meng Song

{"title":"A stochastic transmission network planning method considering the virtual power grid modeling of spatial load-shifting capability of data center loads","authors":"Ciwei Gao, Jingyi Li, Xudong Wang, Meng Song","doi":"10.1016/j.ijepes.2026.112192","DOIUrl":"10.1016/j.ijepes.2026.112192","url":null,"abstract":"<div><div>With the increasing penetration of renewable energy and the growing electricity demand of data centers, traditional transmission network planning faces new challenges in mitigating network congestion and facilitating renewable energy accommodation. To address these challenges, this paper proposes a novel concept of the Virtual Power Grid (VPG), which leverages communication networks to enable workload migration among geographically distributed data centers. By using computing task flows to drive the spatial redistribution of electricity loads, the VPG provides a virtual complement to the physical transmission network. Unlike conventional transmission planning approaches that primarily rely on physical network expansion, the proposed VPG introduces communication-enabled spatial load flexibility as an additional planning resource. Building on this concept, a stochastic transmission network planning model is developed that accounts for multiple uncertainties, including conventional loads, data-center workloads, wind power output, and equipment availability. A Benders decomposition-based method is further employed to enable privacy-preserving coordinated optimization between the power grid and data centers. Case studies on the IEEE 24-bus system demonstrate that the proposed VPG can reduce transmission expansion requirements, alleviate network congestion, decrease wind curtailment and total system costs, providing a new technical pathway for transmission network planning under high renewable energy penetration and large-scale computing loads.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112192"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149055325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 cascade-aware framework for overcurrent protection coordination on inverter-rich distribution feeders hosting hyperscale data centres 超大规模数据中心的富逆变器配电馈线过流保护协调级联感知框架

IF 5.3 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2026-09-01 Epub Date: 2026-09-23 DOI: 10.1016/j.ijepes.2026.112177

Zhuangju Li, Boyu Wang, Wan Li, Morteza Dabbaghjamanesh

{"title":"A cascade-aware framework for overcurrent protection coordination on inverter-rich distribution feeders hosting hyperscale data centres","authors":"Zhuangju Li, Boyu Wang, Wan Li, Morteza Dabbaghjamanesh","doi":"10.1016/j.ijepes.2026.112177","DOIUrl":"10.1016/j.ijepes.2026.112177","url":null,"abstract":"<div><div>Distribution feeders that host hyperscale data centres and grid-following inverter-based resources face protection risks not captured by conventional overcurrent-relay coordination. Voltage-sensitive data-centre loads may transfer after repeated ride-through-envelope violations, whereas IBRs may trip internally before a feeder relay can operate. This paper proposes a cascade-aware coordination framework for radial medium-voltage feeders with data-centre load and fault-current-limited IBRs. Relay pickup currents and time-dial settings are selected by a two-level optimisation with conditional value-at-risk constraints on relay clearing time and coordination-time-interval shortfall. At fixed pickup settings, the inner problem is a linear programme; pickup settings are updated by a trust-region sequential linear-programming outer loop. We also derive a closed-form Hölder-1/2 sensitivity bound for the cascade-loss metric, computable before optimisation from relay-curve, feeder, load, and ride-through-envelope parameters. Public-event-calibrated simulations on IEEE feeders show that the proposed coordinator matches a curve-consistent cascade-unaware baseline on the canonical three-event mixture while reducing mean cascade loss by about 9.5 times relative to uncoordinated IEEE 242 defaults. Its main advantage appears under recurrent voltage depressions: for 0.55 p.u. three-dip trains with durations of at least 120 ms, the proposed settings clear the modelled envelope-driven load-transfer case before the third ride-through count, whereas the cascade-unaware baseline remains at the transfer floor. The same relay-curve certificate identifies a scope boundary: the tested envelope-driven scenarios are relay-catchable, but modelled inverter-firmware trip scenarios remain outside the feasible clearing-time range of admissible IEEE C37.112 overcurrent settings.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"182 ","pages":"Article 112177"},"PeriodicalIF":5.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149055338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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