{"title":"多级交流输电扩展规划,包括故障限流高温超导电缆和多个分布式发电系统,以提高短路水平和电网灵活性","authors":"Mojtaba Shivaie, Reza Artis, Sanjeevikumar Padmanaban","doi":"10.1049/gtd2.13172","DOIUrl":null,"url":null,"abstract":"<p>This paper proposes a new multistage AC model for transmission expansion planning that finds an optimal combination of transmission lines, fault current-limiting high-temperature superconducting cables, and multiple distributed generations (DGs). On this basis, the proposed model, from a new perspective, allows for simultaneous improvement of the short-circuit level and grid-scale flexibility (GFLX) under both normal and fault conditions. The objective function to be minimized includes not only the net present worth of the total investment and operation costs but also the congestion-induced GFLX degradation measure. This model also takes the AC power balance and flow relationships, equipment capacity limits, nodal voltage bounds, DG penetration level limit, as well as discrete logical and financial restrictions together into account with the short-circuit level constraint. To overcome the complexity of solving the resultant non-convex mixed-integer non-linear optimization problem, a multi-objective integer-coded melody search algorithm is employed, followed by a fuzzy satisfying decision-making mechanism to obtain the final optimal solution. The exhaustive case studies conducted on the IEEE 24- and 118-bus test systems verify the efficacy of the newly developed model in terms of cost-effectiveness, flexibility, and short-circuit level suppression when facing different normal and fault conditions.</p>","PeriodicalId":13261,"journal":{"name":"Iet Generation Transmission & Distribution","volume":"18 9","pages":"1947-1969"},"PeriodicalIF":2.0000,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/gtd2.13172","citationCount":"0","resultStr":"{\"title\":\"Multistage AC transmission expansion planning including fault current-limiting high-temperature superconducting cables and multiple distributed generations to improve short-circuit level and grid-scale flexibility\",\"authors\":\"Mojtaba Shivaie, Reza Artis, Sanjeevikumar Padmanaban\",\"doi\":\"10.1049/gtd2.13172\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This paper proposes a new multistage AC model for transmission expansion planning that finds an optimal combination of transmission lines, fault current-limiting high-temperature superconducting cables, and multiple distributed generations (DGs). On this basis, the proposed model, from a new perspective, allows for simultaneous improvement of the short-circuit level and grid-scale flexibility (GFLX) under both normal and fault conditions. The objective function to be minimized includes not only the net present worth of the total investment and operation costs but also the congestion-induced GFLX degradation measure. This model also takes the AC power balance and flow relationships, equipment capacity limits, nodal voltage bounds, DG penetration level limit, as well as discrete logical and financial restrictions together into account with the short-circuit level constraint. To overcome the complexity of solving the resultant non-convex mixed-integer non-linear optimization problem, a multi-objective integer-coded melody search algorithm is employed, followed by a fuzzy satisfying decision-making mechanism to obtain the final optimal solution. 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Multistage AC transmission expansion planning including fault current-limiting high-temperature superconducting cables and multiple distributed generations to improve short-circuit level and grid-scale flexibility
This paper proposes a new multistage AC model for transmission expansion planning that finds an optimal combination of transmission lines, fault current-limiting high-temperature superconducting cables, and multiple distributed generations (DGs). On this basis, the proposed model, from a new perspective, allows for simultaneous improvement of the short-circuit level and grid-scale flexibility (GFLX) under both normal and fault conditions. The objective function to be minimized includes not only the net present worth of the total investment and operation costs but also the congestion-induced GFLX degradation measure. This model also takes the AC power balance and flow relationships, equipment capacity limits, nodal voltage bounds, DG penetration level limit, as well as discrete logical and financial restrictions together into account with the short-circuit level constraint. To overcome the complexity of solving the resultant non-convex mixed-integer non-linear optimization problem, a multi-objective integer-coded melody search algorithm is employed, followed by a fuzzy satisfying decision-making mechanism to obtain the final optimal solution. The exhaustive case studies conducted on the IEEE 24- and 118-bus test systems verify the efficacy of the newly developed model in terms of cost-effectiveness, flexibility, and short-circuit level suppression when facing different normal and fault conditions.
期刊介绍:
IET Generation, Transmission & Distribution is intended as a forum for the publication and discussion of current practice and future developments in electric power generation, transmission and distribution. Practical papers in which examples of good present practice can be described and disseminated are particularly sought. Papers of high technical merit relying on mathematical arguments and computation will be considered, but authors are asked to relegate, as far as possible, the details of analysis to an appendix.
The scope of IET Generation, Transmission & Distribution includes the following:
Design of transmission and distribution systems
Operation and control of power generation
Power system management, planning and economics
Power system operation, protection and control
Power system measurement and modelling
Computer applications and computational intelligence in power flexible AC or DC transmission systems
Special Issues. Current Call for papers:
Next Generation of Synchrophasor-based Power System Monitoring, Operation and Control - https://digital-library.theiet.org/files/IET_GTD_CFP_NGSPSMOC.pdf