Iet Generation Transmission & Distribution最新文献_第3页

Review of Modelling and Optimal Control Strategy for Virtual Energy Storage

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-10 DOI: 10.1049/gtd2.70031

Bowen Zhou, Yichen Jiang, Yanhui Zhang, Guangdi Li, Peng Gu, Boyu Liu

引用次数: 0

Optical Detection of Partial Discharges in GIS Based on Microstructure Light Guides

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-10 DOI: 10.1049/gtd2.70034

Ze Li, Yiming Zang, Chenglin Wang, Yanshu Tang, Xiuchen Jiang

{"title":"Optical Detection of Partial Discharges in GIS Based on Microstructure Light Guides","authors":"Ze Li, Yiming Zang, Chenglin Wang, Yanshu Tang, Xiuchen Jiang","doi":"10.1049/gtd2.70034","DOIUrl":"https://doi.org/10.1049/gtd2.70034","url":null,"abstract":"The optical detection method has attracted much attention in the field of partial discharge (PD) detection due to its strong anti-interference ability. To improve the detection performance of optical PD sensors, a novel optical PD sensor based on the light guide rod (LGR) is proposed. A simulation model is constructed according to the actual dimensions of gas-insulated switchgear (GIS). The optical properties of the LGR are analysed in terms of material, front microstructure, and length. Subsequently, an optical and electrical PD detection system is set up. Four typical PD defects are designed. The detection performance of different detection methods is compared, and the characteristic parameters such as partial discharge inception voltage (PDIV), phase distribution, pulse amplitude, and quantity are analysed. The results show that the PD sensor based on LGR performs better in detecting typical PD signals of GIS and can reflect the characteristics of PD signals. These results provide a reference for the design and application of optical PD sensors for GIS.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594906","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

Towards HVDC interoperability—Vendor agnostic control architecture and quantifying domain of operating point

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-05 DOI: 10.1049/gtd2.13298

Dong Chen, Pimonpan Phurappa, Benjamin Marshall, Adam Scott, Callum Henderson

{"title":"Towards HVDC interoperability—Vendor agnostic control architecture and quantifying domain of operating point","authors":"Dong Chen, Pimonpan Phurappa, Benjamin Marshall, Adam Scott, Callum Henderson","doi":"10.1049/gtd2.13298","DOIUrl":"https://doi.org/10.1049/gtd2.13298","url":null,"abstract":"A vendor agnostic design framework is proposed for multi-terminal high voltage direct current (HVDC) here. An analytical assessment is then proposed as a first step of this assessment to quantify the domain of operating point. The criterion is indexed by the margin against loss-of-equilibrium for an Multi-Vendor-Multi-Terminal (MVMT)-HVDC network with terminal behaviour of connected converters. Based on a multi-terminal control architecture, a static analytical model is established, including relevant parameters within the direct current network, its topology, and operation. Two types of scalar index are proposed and then normalized to indicate the margin against loss-of-equilibrium and then employed to quantify the domain of operating point. It is proposed that the domain of security shall correspond to a value in closer proximity to ‘1’ for better security. The effectiveness of the indices is verified and analysed with simulations in the environments of both Matlab/Simulink and real-time digital simulator with pseudo-steady-state and detailed electro-magnetic transient modelling, respectively. This approach attempts to represent one MVMT control scheme to support practical specification, testing and demonstration of the first MVMT-HVDC control system as a business case.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.13298","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554302","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

Optimal Scheduling of Integrated Electricity-Gas Network Considering Topology Control Actions: A Two-Stage Hybrid Robust-Stochastic Approach

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-03 DOI: 10.1049/gtd2.70022

Leila Saberi, Mohsen Parsa Moghaddam

{"title":"Optimal Scheduling of Integrated Electricity-Gas Network Considering Topology Control Actions: A Two-Stage Hybrid Robust-Stochastic Approach","authors":"Leila Saberi, Mohsen Parsa Moghaddam","doi":"10.1049/gtd2.70022","DOIUrl":"https://doi.org/10.1049/gtd2.70022","url":null,"abstract":"Integrated energy systems (IESs) with deep coupling of electric power and natural gas have recently attracted much attention. The issue of increasing uncertainty in both the generation and load sides of an integrated electric-natural gas system (IENGS) is a concerning problem. In this paper, a hybrid robust-stochastic optimization (RSO) framework is introduced to address the day-ahead contingency-constrained unit commitment (CCUC) problem of an IENGS equipped with promising technologies. The objective of the research is to minimize the total operation cost of the CCUC problem while ensuring system security under multiple uncertainties and contingencies. The uncertainties of load and gas demands are generated using the Monte Carlo Simulation (MCS) method, while a robust uncertainty set is applied to handle wind power deviations. Generation scheduling and topology control action are also co-optimized. To solve the proposed CCUC as a nonconvex problem, an augmented nested column-and-constraint generation algorithm is used to enhance the performance of the decomposition procedure. The quantitative results imply that with a negligible increase of 6.88% in operation cost, a huge cost reduction of 38.06% in the long run model can be anticipated. Additionally, the results show the effectiveness of the TLS action in day-ahead operation, reducing the total cost by up to 17.5%.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535969","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

Fault Location Algorithm for Distribution Network With Distributed Generation Based on Domain-Adaptive TGATv2

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-03 DOI: 10.1049/gtd2.70033

Tong Lu, Sizu Hou

{"title":"Fault Location Algorithm for Distribution Network With Distributed Generation Based on Domain-Adaptive TGATv2","authors":"Tong Lu, Sizu Hou","doi":"10.1049/gtd2.70033","DOIUrl":"https://doi.org/10.1049/gtd2.70033","url":null,"abstract":"When a grounding fault occurs in a distribution network with distributed generation (DG), it poses significant challenges for fault localization, including difficulties in extracting fault features, complex changes in network topology, and limited fault samples. A distribution network fault localization method based on a domain-adaptive transfer dynamic graph attention network (TGATv2) is proposed to tackle these challenges. First, a feature selection (FS) module is embedded into the dynamic graph attention network (GATv2), which can automatically select zero-sequence current statistical features related to node faults, thereby reducing noise interference. Subsequently, the network topology is reconstructed to account for both fault conditions and economic efficiency. This enhances the model's generalization ability across various degrees of network topology changes and scenarios. Additionally, a domain-adaptive transfer learning method with an optimized dynamic loss function is employed to reduce the distribution differences between the source domain and target domain data, addressing the issue of fault location with limited samples. Finally, simulations and experimental tests are conducted using different distribution networks. The results demonstrate that compared to TGATv2 without FS embedding, the proposed method improves average accuracy by at least 8% and achieves approximately 3–22% higher accuracy compared to other methods, demonstrating strong robustness.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535886","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

Enhancement of Transient Reactive Power Compensation Capability for STATCOM Based on Power Balance Phase-Locked Strategy

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-03-03 DOI: 10.1049/gtd2.70023

Wenhao Du, Minxiao Han, Haoyi Wang, Yuanxin Zhang, Shibo Wang, Yan Cheng

{"title":"Enhancement of Transient Reactive Power Compensation Capability for STATCOM Based on Power Balance Phase-Locked Strategy","authors":"Wenhao Du, Minxiao Han, Haoyi Wang, Yuanxin Zhang, Shibo Wang, Yan Cheng","doi":"10.1049/gtd2.70023","DOIUrl":"https://doi.org/10.1049/gtd2.70023","url":null,"abstract":"When a fault occurs in transmission lines, the voltage at the point of common coupling of renewable energy stations can drop drastically. This causes the phase-locked loop (PLL) performance to degrade, reducing the transient voltage support capability of the STATCOM in the station. To address this issue, this paper proposes a novel phase-locked method for STATCOM based on power balance (PB) theory. First, the paper establishes a mathematical model of the traditional STATCOM to identify the causes of PLL performance degradation during transient events. Next, the paper introduces the PB phase-locked strategy: this strategy adjusts the power exchange between the grid and STATCOM, simulating the synchronization process of a synchronous condenser. Finally, the paper uses PSCAD/EMTDC to build simulation models and verify the performance of the proposed scheme. The simulation results show that overvoltage and overcurrent are reduced by 16.5% and 20.1%, respectively, compared to traditional SRF-PLL. The proposed strategy provides sufficient transient voltage support even when the traditional PLL fails.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535887","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 Physics-Informed Neural Network-Based Transient Overvoltage Magnitude Prediction Method for Renewable Energy Stations Under DC Blocking Scenarios

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-02-28 DOI: 10.1049/gtd2.70030

Guangyao Wang, Jun Liu, Jiacheng Liu, Xiaoming Liu, Tao Ding, Xianbo Ke, Chong Ren

{"title":"A Physics-Informed Neural Network-Based Transient Overvoltage Magnitude Prediction Method for Renewable Energy Stations Under DC Blocking Scenarios","authors":"Guangyao Wang, Jun Liu, Jiacheng Liu, Xiaoming Liu, Tao Ding, Xianbo Ke, Chong Ren","doi":"10.1049/gtd2.70030","DOIUrl":"https://doi.org/10.1049/gtd2.70030","url":null,"abstract":"Large-scale power systems typically require long-distance transmission of electrical energy, and high-voltage direct current (HVDC) technology is a commonly used high-capacity means of connecting power sources to load centres. When a blocking fault occurs in an HVDC transmission system based on line commutated converters (LCC), the sending-end system is prone to transient overvoltage (TOV) risks. This is especially severe in systems with large-scale renewable energy integration, where excessive TOV can lead to widespread disconnection of renewable energy units, seriously threatening the safe and stable operation of the power system. Therefore, predicting the TOV magnitude in renewable energy stations (RES) under DC blocking (DCB) scenarios is of great importance for maintaining system stability and facilitating emergency control decisions. This paper first derives an analytical expression for the TOV magnitude at critical nodes in the system caused by DCB faults. Subsequently, an analytical formula is developed to characterize the relationship between the multiple renewable energy stations short circuit ratio (MRSCR) and the transient voltage rise (TVR) at the point of common coupling (PCC) of RES. Based on this, a physics-informed neural network-based transient overvoltage magnitude prediction (PINN-TOMP) method for RES under DCB scenarios is proposed. The method introduces a regularization term for MRSCR into the loss function to ensure that the PINN model adheres to the physical laws and constraints governing the power system, thereby enhancing the prediction accuracy. Finally, the proposed method was tested on a real regional power system in China, and the results validated its effectiveness.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513456","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

Optimal User-Side Energy Arbitrage Strategy in Electricity Market With Accurate Battery Model Using Benders Decomposition

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-02-28 DOI: 10.1049/gtd2.70024

Tao Chen, Mengchen Zhu, Ciwei Gao, Yajuan Cao

{"title":"Optimal User-Side Energy Arbitrage Strategy in Electricity Market With Accurate Battery Model Using Benders Decomposition","authors":"Tao Chen, Mengchen Zhu, Ciwei Gao, Yajuan Cao","doi":"10.1049/gtd2.70024","DOIUrl":"https://doi.org/10.1049/gtd2.70024","url":null,"abstract":"In this paper, the optimal operation and arbitrage strategies for user-side energy storage systems are studied considering an accurate battery model to capture the charging and discharging features. Meanwhile, the proposed method uses Benders decomposition to help solve the consequential decision-making problems of energy arbitrage in electricity market with dynamic price signal and continuous iteration of charging cycling counting and battery life costs. Empirical analysis and simulation based on different scenarios of Chinese provisional electricity markets demonstrate the variability of such energy arbitrage strategies in realistic applications, which mainly depends on the trade-off between the physical operation features of the energy storage systems and the market pricing scheme. The main findings and results confirm the advantages of involving such user-side energy storage system resources that can participate in the deregulated electricity market, ultimately benefiting the energy end-users at the distribution level, as well as the upper-level market or system operation. It is believed that further study of a more accurate battery model and a more precise battery cycling life cost can also contribute to improving the reasonable market mechanism design.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513503","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

Analytical Identification Method of Generalized Short-Circuit Ratio Using Phasor Measurement Units

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-02-27 DOI: 10.1049/gtd2.70026

Zelei Han, Ping Ju, Hongyu Li, Yilu Liu

{"title":"Analytical Identification Method of Generalized Short-Circuit Ratio Using Phasor Measurement Units","authors":"Zelei Han, Ping Ju, Hongyu Li, Yilu Liu","doi":"10.1049/gtd2.70026","DOIUrl":"https://doi.org/10.1049/gtd2.70026","url":null,"abstract":"This paper introduces a novel analytical approach for the identification of the admittance matrix and the generalized short-circuit ratio (gSCR) in power systems integrated with renewable energy sources. The proposed method leverages voltage and current measurements from phasor measurement units (PMUs) to construct a least squares objective function, which is then solved using matrix calculus and partial derivatives. Unlike conventional optimization algorithms, this approach provides an analytical solution that substantially reduces data requirements, enabling the efficient and accurate identification of the gSCR with smaller datasets. Additionally, its fixed computational complexity allows for real-time updates as new data are collected, ensuring continuous refinement of the system of equations and enabling rapid, precise gSCR calculations. The method also exhibits strong robustness against measurement noise, making it well-suited for practical applications in dynamic power systems. The combination of reduced data requirements, real-time adaptability, noise robustness and fixed computational load establishes this method as a highly efficient and reliable tool for real-time power system stability analysis. Case studies on an EPRI 36-bus system demonstrate the method's effectiveness, highlighting its accuracy in closely matching true gSCR values, even under diverse disturbances and noisy conditions.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513821","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 Novel Sliding Mode Control Strategy for VSG-Based Inverters with Disturbance Estimation

IF 2 4区工程技术

Iet Generation Transmission & Distribution Pub Date : 2025-02-27 DOI: 10.1049/gtd2.70025

Qian Zhang, Xiaoqing Lu, Chi Zhang, Shi Su, Qingyang Xie

{"title":"A Novel Sliding Mode Control Strategy for VSG-Based Inverters with Disturbance Estimation","authors":"Qian Zhang, Xiaoqing Lu, Chi Zhang, Shi Su, Qingyang Xie","doi":"10.1049/gtd2.70025","DOIUrl":"https://doi.org/10.1049/gtd2.70025","url":null,"abstract":"The interface inverter control system based on virtual synchronous generator (VSG) technology, has been widely used in new power systems due to its ability to provide system inertia. To enhance the robustness of the VSG-based inverter control system against uncertain disturbances, this paper proposes a novel sliding mode control (SMC) strategy consisting of two control layers for VSG-based inverters based on disturbance estimation. Firstly, the VSG-based outer loop control layer is established to mitigate the transient instability during pre-synchronization process, which consists of an active frequency control loop with a phase angle regulator and a reactive voltage control loop with an amplitude regulator. Secondly, an SMC-based inner loop control layer is designed to replace the traditional voltage and current dual loop control for robustness improvement, where the uncertain disturbance can be estimated and fed back to the controlled system for disturbance suppression. Moreover, both of the eigenvalue method based small signal stability and the Lyapunov functional based large signal stability are analysed for different control layers, and the comparative simulations are conducted between the proposed strategy and traditional pre-synchronization control as well as voltage current dual loop control, in scenarios of grid-connected voltage fluctuation and islanded load power variation. The dSPACE based prototype physical experiment further validates the effectiveness of the sliding mode control strategy for VSG-based inverters with disturbance estimation.","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"19 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513839","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