2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)最新文献

{"title":"Analysis of Symmetric Step-up Topology Based on a Parallel-Connected 18-pulse Auto-transformer","authors":"Xiaohan Liu, Xiaoqiang Chen, Ying Wang, Tao Chen, Yalan Wang","doi":"10.1109/AEES56284.2022.10079545","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079545","url":null,"abstract":"For enable the multi-pulse auto-transformer rectifier unit (ATRU) can well meet a variety of step-up industrial occasions, an 18-pulse ATRU is proposed by considering in needs of small equivalent volume and simple structure. The topology of the proposed is designed, the step-up range is given, the step-up working principle is analyzed, and the relationship between the step-up factor and the equivalent volume of the used magnetic device is derived. It has high robustness and reliability.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133567774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Risk Early Waring Classification Method of New Energy Access to Power System","authors":"Haoen Li, Ruanming Huang, Xiaohui Wang, Fei Fei, Y. Qi, Chao Zhang","doi":"10.1109/AEES56284.2022.10079283","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079283","url":null,"abstract":"As large-scale new energy sources are connected to the power grid, the uncertainty of power grid operation has been exacerbated. In addition, in recent years, the frequent occurrence of weather on the machine side and the occurrence of power grid accidents caused by meteorological elements have warned us that we should strengthen the research on power grid security issues. This paper establishes a risk warning model that is suitable for considering the access of new energy to the power system. Through the risk assessment of the future system state, a system operation risk index based on the utility function theory is proposed. Loss of Load Probability and Expected Energy not Supplied are taken as the adequacy risk indicators of the system. Based on the above indicators, a risk warning classification model is established based on the fuzzy comprehensive evaluation method, and finally the comprehensive risk level of the system is obtained. And combined with IEEE-RTS79 test system. The feasibility of the early warning model is verified.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114190880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the Impact of Chip Failures in Different Positions of Press-Pack IGBTs on other Chips","authors":"Zhaoyun Wang, Qingping Zhang, Kai Yang, Yongqiang Kang, Shuaibing Li, Hongwei Li","doi":"10.1109/AEES56284.2022.10079568","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079568","url":null,"abstract":"Crimped insulated gate bipolar transistors (IGBT) are widely used in electric locomotives, flexible DC power transmission systems and converters because of their characteristics of easy series and high-power density. The reliability of IGBT directly affects the safe operation of the system, and the failure of the internal chip often occurs. In order to explore the influence of the failure of the chip at different positions in IGBT on other chips, Firstly, this paper constructs the multi physical field finite element model of crimped IGBT module, and determine its boundary conditions. Secondly, simulate and analyze the influence of chip faults at different positions on the stress, temperature and current density distribution of other chips, The life prediction model is used to predict the life of IGBT. The results show that when the chip at the edge fails to conduct, it is easier to increase the stress and temperature of other chips and shorten the service life than the chip at the center. However, the peak of current density does not increase significantly. The results can provide scientific reference for reliability analysis of Press-pack IGBTs.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122667290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal Scheduling Method of Park Integrated Energy System Based on Improved Particle Swarm Algorithm","authors":"Sixian Liu, K. Ding, Yi Xia, Haiying Dong","doi":"10.1109/AEES56284.2022.10079441","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079441","url":null,"abstract":"This paper proposes an optimal scheduling method based on improved particle swarm for the organic coordination optimization problem among various energy systems in park integrated energy system. By analyzing the structure of park integrated energy system, the corresponding equipment model is established, and the optimal scheduling model of the park integrated energy system is established with the system revenue and user cost as the optimization goals. The validity of the model and algorithm proposed is verified by numerical example simulation.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126297639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the Influence of 800kV Circuit Breaker Opening and Closing Action on the Electromagnetic-stress Distribution Characteristics of Closing Resistance and Its Suppression Measures","authors":"Yanyan Bao, Kang Liu, Feng Wang, Dingjun Wen, Guangdong Zhang, Jiaqi Li","doi":"10.1109/AEES56284.2022.10079289","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079289","url":null,"abstract":"The Pre-insertion Resistors of the 800kV circuit breaker is mainly used to suppress the closing inrush current and operating overvoltage of the circuit breaker during the closing process. However, due to the special application environment of the circuit breaker, the abnormal rate of the closing resistance of the AC filter field is relatively high. The change of the internal field strength of the circuit breaker under several conditions of breakage of resistors in different positions and sizes, cracks inside and outside the resistors, and falling of fragments of the resistors are analyzed, and the stress changes of the resistors during the opening and closing process are also analyzed., combined with the analysis results, a vibration reduction measure of adding a pure aluminum transition sheet between each two resistor sheets is proposed. The research results show that when there is a crack on the inner ring surface of the resistor sheet (width about 1mm and length about 25mm), the electric field distribution around it The influence is very small. When there is a crack on the outer surface of the resistor sheet (width of about 1mm and length of about 25mm), it will have a certain influence on the distribution of the surrounding field strength, but the effect is limited and will not cause a significant change in the field strength; larger damaged fragments (length 50mm), the internal field strength will be distorted when dropped, especially the field strength around the falling debris is seriously distorted, up to 94kV/cm, which will lead to an abnormal increase in the local field strength and cause breakdown. At the same time, there are stress concentration points on the inner hole edge and outer edge of the resistor sheet, which are also weak points of force. The results of this paper can provide a reference for the operation and maintenance of 750kV circuit breakers to avoid failures during operation.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"1 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114044511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preface and Committees","authors":"Yun-Hae Kim, P. Yarlagadda, Xiaodong Zhang, Z. Ai","doi":"10.1109/icssem.2012.6340759","DOIUrl":"https://doi.org/10.1109/icssem.2012.6340759","url":null,"abstract":"A number of topics were highlighted in the scope of special sessions and some of the presented papers are collected in this volume: FLOW SYSTEMS, DESIGN AND OPTIMIZATION (SS1) (by A.F. Miguel, L. Rocha), DIFFUSION PROCESSES AND REACTIONS IN ENGINEERING ALLOYS (SS2) (by H. Mehrer, G.E. Murch, I. Belova), GRAIN BOUNDARIES AND INTERFACES: STRUCTURE, THERMODYNAMICS AND DIFFUSION PROPERTIES (SS3) (by V.V. Popov, B. Straumal), ALTERNATIVE ENERGIES (SS4) (by G. Ferreira), CARBON AND OXIDE NANOSTRUCTURES (SS5) (by N. Yahya, G. Kozlowski, K. Koziol), DRYING AND WETTING OF SOLIDS AND PARTICULATE MATERIALS (SS6) (by A.G. Barbosa de Lima, J.M.P.Q. Delgado), HEAT AND MASS TRANSFER IN POROUS MEDIA (SS7) (by J.M.P.Q. Delgado), NANO/BIO MATERIALS SYNTHESIS, CHARACTERIZATION, MODELING AND APPLICATIONS (SS9) (by A. Shokuhfar, C. Politis), HYDROGEN‐RELATED KINETICS IN MATERIALS (SS10) (by Y. Fukai, M. Wilde), MICROSCOPY, MICROANALYSIS AND THEIR APPLICATION ON MATERIALS (SS11) (by K. Shin), NANOTECHNOLOGY IN OIL AND GAS (SS12) (by H. Soleimani).","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132050083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}