2022 IEEE 5th International Electrical and Energy Conference (CIEEC)最新文献_第4页

Research on intelligent evaluation model of transient stability based on K-means grouping 基于k均值分组的暂态稳定智能评估模型研究

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9845894

Xiancheng Ren, Yin Zhang, Feng Wu, H. Yuan, Jinlong Zhang, Haijun Chang

{"title":"Research on intelligent evaluation model of transient stability based on K-means grouping","authors":"Xiancheng Ren, Yin Zhang, Feng Wu, H. Yuan, Jinlong Zhang, Haijun Chang","doi":"10.1109/CIEEC54735.2022.9845894","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9845894","url":null,"abstract":"In a large number of actual power system operation scenarios, the transient instability scenarios are far smaller than the stable operation scenarios. In the case of imbalanced samples, the rapid transient stability assessment based on machine learning will lead to the learning algorithm preferring to the majority of classes with more samples, thus causing the problem of missing judgment for the transient instability scenarios. This paper proposes an under-sampling method for grouping majority class samples based on K-means. Under the constraint that the proportion of stable samples and unstable samples meets certain conditions, the majority of class stable samples are grouped with the center sample and the sample nearest to the center sample as initial values, and the K-means algorithm is adopted. By regrouping the samples of the majority class successively, multiple training sample subsets composed of unstable samples and multiple groups of stable samples are finally formed. Model training is performed for each training sample set, and the evaluation model of the new mode is judged by the comprehensive distance from the unstable center sample and the stable center sample of each sample subset, and then the transient stability judgment is carried out, so as to improve the accuracy of rapid evaluation under the unbalanced condition of training samples. The effectiveness of the proposed method is verified by an actual power grid example.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126678560","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}

引用次数: 0

Predictive Control Strategy of Power Electronic Traction Transformer for Fault Tolerance Condition 电力电子牵引变压器容错预测控制策略

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846087

Nan Zhao, Zedong Zheng, Yongdong Li

引用次数: 0

Application of Internet + digital technology in the integrated management of feasibility study and design of UHV transmission line project 互联网+数字技术在特高压输电线路工程可行性研究与设计一体化管理中的应用

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9845912

Guan Lan, Yu Yang, Wu Wenrui, Tian Lei, Li Xianxin, Lin Benliang

{"title":"Application of Internet + digital technology in the integrated management of feasibility study and design of UHV transmission line project","authors":"Guan Lan, Yu Yang, Wu Wenrui, Tian Lei, Li Xianxin, Lin Benliang","doi":"10.1109/CIEEC54735.2022.9845912","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9845912","url":null,"abstract":"At present, the digital application of UHV engineering design is still at initial stage. In order to solve problems, such as mixed majors, tons of participants, hard to collaborate, and lack of unified work platform, this article is going to introduce a method of construction the platform, which could be used for the integrated management of feasibility study and design of UHV transmission line project. By using WebGIS, cloud computing, with remote sensing data, engineering design data and real sense 3D modeling, this method will create a platform for substation (converter) stations and transmission lines with visualization of 3D models, progress query and process control, etc. This new method will create a closed-loop for line feasibility study design results and online business management. Furthermore, it will accumulate engineering digital results dynamically and provides sustainable services in the follow-up projects. By using this new application, the collaborative design and lean management level of UHV projects will be efficiently improved.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130588771","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}

引用次数: 0

Research on green construction evaluation of power grid construction under the background of dual carbon 双碳背景下电网建设绿色施工评价研究

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846387

Qingxiang Huang, Ping Chen, Li Zhou, Hongyan Zhang, Zengguang Huang, Yang Wang

引用次数: 0

Design and Analysis of High Reliability Fault Tolerant Permanent Magnet Steering Motor 高可靠性容错永磁转向电机的设计与分析

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846669

Xuefeng Jiang, Hongbo Liu, Siyuan Wang, Zhixian Zhang, K. Ma

{"title":"Design and Analysis of High Reliability Fault Tolerant Permanent Magnet Steering Motor","authors":"Xuefeng Jiang, Hongbo Liu, Siyuan Wang, Zhixian Zhang, K. Ma","doi":"10.1109/CIEEC54735.2022.9846669","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846669","url":null,"abstract":"In order to solve the problems of large mutual inductance between phases, magnetism and heat coupling of high and low voltage windings and low reliability for traditional steering motor, a design scheme of high reliability fault tolerant permanent magnet steering motor for automotive steering system application is proposed. The main parameters of the motor design are given. By selecting the number of pole slots, winding distribution and the design of fault-tolerant teeth, the high and low voltage windings of the motor are located in different slots. Through the physical isolation of fault-tolerant teeth, the electric, magnetic and thermal triple physical isolation of high and low voltage windings is realized. The stator adopts unequal teeth to improve the efficiency of the motor, and the rotor adopts semi embedded SPM, which has high overload capacity. The electromagnetic performance of the motor is analyzed by finite element method. The motor meets the design performance requirements, the mutual inductance between phases and high and low voltage windings of the motor is almost zero, and the motor has the advantages of strong overload capacity, high efficiency and small amplitude of electromagnetic vibration.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123879091","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}

引用次数: 0

Research on Interactive Operation and Maintenance Service Mode of Electric Vehicles 电动汽车交互式运维服务模式研究

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846776

Binbin Zang, Hui Gao

引用次数: 0

Optimal Dispatching Strategy for Integrated Energy System with Electricity-Heat-Cold-Hydrogen 电-热-冷-氢综合能源系统的优化调度策略

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846694

Hua Xie, Zhihong Xu, Wen Wang

引用次数: 0

Research on power flow optimization control strategy of AC-DC hybrid microgrid based on power electronic transformer 基于电力电子变压器的交直流混合微电网潮流优化控制策略研究

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846164

Ling Zhou, Tiancheng Liu

引用次数: 0

Electrical metrology based on quantum technology: a review of current progress 基于量子技术的电计量:当前进展综述

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/cieec54735.2022.9845825

Siyun Wang, Meimei Duan, Qing Xu, Zigang Lu, Guofang Xia, Dan Gong, Y. Yi, Jin Bao

引用次数: 0

Whole-system Potential and Benefit of Energy Storage by Vehicle-to-grid (V2G) under Carbon Neutrality Target in China 碳中和目标下中国汽车到电网储能(V2G)的全系统潜力和效益

2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846521

Yifan Wei, Haiyan Huang, Xuebing Han, Languang Lu, M. Ouyang, K. Pang, Yudi Qin

{"title":"Whole-system Potential and Benefit of Energy Storage by Vehicle-to-grid (V2G) under Carbon Neutrality Target in China","authors":"Yifan Wei, Haiyan Huang, Xuebing Han, Languang Lu, M. Ouyang, K. Pang, Yudi Qin","doi":"10.1109/CIEEC54735.2022.9846521","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846521","url":null,"abstract":"Due to high penetration of renewable energy, the new electricity system oriented to carbon neutrality will face the bottleneck of insufficient flexibility resource. Electric vehicle (EV) shall become a core hub of energy consumption and storage. This paper proposes a coupled transportation-energy-electricity framework to evaluate the technical potential and whole-system value of smart orderly charging and vehicle-to-grid (V2G) in China. This approach simultaneously optimizes power supply installation, transmission network, storage capacity, as well as unit commitment, power dispatch and system reliability for real-time nationwide energy balancing, while considering EV ownership development, travel behavior and charging demand. Scenarios of unmanaged charging, smart charging and V2G are carried out for cases of 2025, 2030, 2040, 2050 and 2060. Results show that, in 2040, the total installed energy of EV batteries will be over 20 TWh and the flexible adjustment capacity exceeds 10 TWh. The V2G operation can reduce up to 730 Mt CO2 emission annually. The levelized whole-system cost for low-carbon transformation can be declined by up to 49.7% till 2060 under V2G scenario compared with unmanaged charging. Considering thermal power freely developing as business-as-usual case, the unit decarbonization cost could even be reduced by 100.2% to be minus through V2G integration in 2050.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"130 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121402969","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}

引用次数: 1