2022 International Conference on Power Energy Systems and Applications (ICoPESA)最新文献_第2页

Transient Protection of EHV AC Line Based on Wavelet Packet Entropy 基于小波包熵的超高压交流线路暂态保护

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754400

Zebing Shi, Lu Chu, Jiang Yu, Xiaobing Ding, Honghui Gao, Zengping Wang, Tong Wang, Qian Xu

引用次数: 1

Residential Energy Arbitrage Considering Demand Response and Accurate Battery Model with Degradation Cost 考虑需求响应和具有退化成本的精确电池模型的住宅能源套利

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754456

Tao Chen, Qinran Hu, Yifei Wang, Xiangjun Quan, Fei Zhang, Xingyu Yan

引用次数: 1

Insulator and Damage Detection and Location Based on YOLOv5 基于YOLOv5的绝缘子及损伤检测与定位

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754476

Qiang Li, Feng Zhao, Zhongping Xu, Jing Wang, Kaipei Liu, Liang Qin

{"title":"Insulator and Damage Detection and Location Based on YOLOv5","authors":"Qiang Li, Feng Zhao, Zhongping Xu, Jing Wang, Kaipei Liu, Liang Qin","doi":"10.1109/ICoPESA54515.2022.9754476","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754476","url":null,"abstract":"In order to quickly and accurately detect and locate the insulator and its damage in the transmission line, by studying the YOLO (you only look once) series target detection algorithm model based on deep learning, a detection method based on YOLOv5 is proposed to achieve fast and accurate detection. By applying the network to the aerial insulator data set for training, the experimental results show that the highest AP (Average Precision) value based on YOLOv5 insulator detection is 96.47%, the highest AP value of insulator damage is 99.17%, and the overall m-AP (mean Average Precision) value is 97.82%. At the same time, YOLOv5s has a higher detection rate, and the real-time detection speed is 43.2FPS (Frames Per Second). The experimental results show that the target detection network based on YOLOv5 series has higher accuracy and faster calculation speed for transmission line insulator detection and damage identification under complex background, at the same time, the lightweight model of YOLOv5s is conducive to the deployment of UAV (Unmanned Aerial Vehicle) end model and improve inspection efficiency.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126829550","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: 14

Analysis of Short-Circuit Characteristics and the Design of a Novel Protection Circuit for SiC MOSFETs SiC mosfet短路特性分析及新型保护电路设计

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754412

Haihong Qin, Yueru Yang, Sixuan Xie, Jiangjin Peng, Haoxiang Hu, F. Bu

引用次数: 0

Coordinated Optimization of the Planning and Operation of a WF/BESS WF/BESS规划与运行的协调优化

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754438

Siyu Tao, Chaohai Zhang, Gang Zheng

引用次数: 0

High-Efficiency, High-Power Density and Wide-Range Power Supply Design Based on GaN HEMT 基于GaN HEMT的高效率、高功率密度和宽范围电源设计

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754382

Kesong Zhang, Xikun Chen, Zehui Peng, Yongjian Chen, Guo Wei, S. Ze

{"title":"High-Efficiency, High-Power Density and Wide-Range Power Supply Design Based on GaN HEMT","authors":"Kesong Zhang, Xikun Chen, Zehui Peng, Yongjian Chen, Guo Wei, S. Ze","doi":"10.1109/ICoPESA54515.2022.9754382","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754382","url":null,"abstract":"To enrich the functions of the flyback converter, enable it to achieve high-efficiency and high-power density, and at the same time have more flexibility and apply to more occasions, in this paper, GaN HEMT and transient voltage suppressor (TVS) are used to design a high-efficiency, high-power density, wide-input and wide-output power supply based on quasi-resonant flyback converter (QRFC). To solve the problem that the gate drive voltage requirement of GaN HEMT is different from that of Si-MOSFET, a corresponding drive level conversion circuit is designed. In order to solve the problem of the power supply of the controller when the output is in a wide range, the power supply circuit of the wide-range controller is studied. In view of the cumbersome design and calculation of the traditional resistor capacitor diode (RCD) clamping circuit and the large loss of energy, TVS is used to redesign the clamping circuit to avoid the calculation and selection problems of the clamping capacitor C and the discharge resistance R. The loss is smaller and the design is more convenient. Aiming at the difficulty of designing transformer core and primary inductance when the switching frequency changes, a switching frequency interval estimation method based on the constraints of switching loss and output filter capacitor conditions is proposed to simplify the design of the transformer. The experimental results show that the high-efficiency, high-power density and wide-range power supply designed in this paper can achieve input 90-265VACrms, rated 220VACrms, output 5-15V wide-range adjustable, full load up to 75W, power density up to 17.44 W/inch3, and the highest efficiency can reach 92.6%, and the output ripple voltage is less than 50mV.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116642429","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

Current Characteristic Values Estimation for Losses Calculation of Inductor in Dual Active Bridge 双有源电桥中电感损耗计算的电流特征值估计

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754392

Junduo Wen, Haoyuan Jin, Xiaobo Dong, Zhenyu Wang, Yi Liu, Chenya Wang, Hang Kong, Laili Wang

引用次数: 1

Retrospect and Prospect of Wind Power Participating in Power System Frequency Regulation 风电参与电力系统调频的回顾与展望

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754387

Zhang Wen, L. Yao, Shuai Liang, Rusi Chen, Jian Xu, F. Cheng

{"title":"Retrospect and Prospect of Wind Power Participating in Power System Frequency Regulation","authors":"Zhang Wen, L. Yao, Shuai Liang, Rusi Chen, Jian Xu, F. Cheng","doi":"10.1109/ICoPESA54515.2022.9754387","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754387","url":null,"abstract":"Large-scale grid-connected renewable energy sources (RES) pose a serious threat to the frequency stability of the power system. Considering the active power flexible regulation ability for wind turbines (WTs), the gradual increase in the penetration level of wind power (WP) has led to growing interest in the capability of WP participating in the power system frequency regulation. Therefore, this paper reviews the current research status of WP participating in frequency regulation from WT level, wind farm (WF) level, and power system level, respectively. At the WT level, the existing WT types and the characteristics of various frequency regulation strategies are analyzed. At the WF level, the coordinated controls within the WFs are further discussed, which contain the active power distribution between WTs and rotor speed recovery coordinated control. At the system level, the coordinated frequency controls of WP with other generation resources and energy storage systems are presented. The advantages and disadvantages of each frequency participation strategy are also discussed and compared. Finally, the prospects of WP frequency regulation are expected with further research attention.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"144 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113987158","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

Comprehensive Comparative Analysis of TCSC on Power Flow Regulation in HVAC System TCSC对暖通空调系统潮流调节的综合比较分析

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754443

N. Ahmed, Yin Zhongdong, Tahira Mumtaz, Taha Ather, Kyalumba Kabamba Rudy, Salman Murtaza

{"title":"Comprehensive Comparative Analysis of TCSC on Power Flow Regulation in HVAC System","authors":"N. Ahmed, Yin Zhongdong, Tahira Mumtaz, Taha Ather, Kyalumba Kabamba Rudy, Salman Murtaza","doi":"10.1109/ICoPESA54515.2022.9754443","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754443","url":null,"abstract":"Flexible AC Transmission (FACTS) technology is combination of modern power electronics and traditional power flow controls technology. TCSC uses highly reliable, high-power Thyristor components to replace mechanical HVAC switches, so that the electrical parameters can be quickly adjusted in reducing power loss, greatly improving system stability and reliability by impedance adjustment. In this paper, MATLAB simulation of two bus system connected by 230kV Double Transmission Line to the load is presented, to study power flow with a comparison of the system feature with and without TCSC. The working characteristics of TCSC indicate the operating adjustment range of TCSC under various load conditions. The main factors affecting the operating characteristics of TCSC include the controlled firing angle accuracy of the Thyristor, the rated voltage of the FSC and the rated current of the TCR. Another important point of the study is influence of TCSC device parameter design on power system, which indicates that the TCSC greatly improves the real power flow performance in HVAC system and helps in minimizing the power loss.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131479333","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

SSO Suppression Priority Analysis of Multi-mode and Multi-condition Units in Large-Scale Direct-Drive Wind Farms 大型直驱风电场多模式多工况机组SSO抑制优先级分析

2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754401

L. Xu, JiJiong Mi

{"title":"SSO Suppression Priority Analysis of Multi-mode and Multi-condition Units in Large-Scale Direct-Drive Wind Farms","authors":"L. Xu, JiJiong Mi","doi":"10.1109/ICoPESA54515.2022.9754401","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754401","url":null,"abstract":"Existing method usually regard the whole direct-drive wind farm as a single turbine or use aggregated equivalent method, which ignored the inside-wind-farm sub-synchronous oscillation (SSO) modes and cannot analyze the stability difference of turbines under different working conditions. Firstly, the eigenvalue method is used to analyze the power system connected with multiple PMSGs, and found the system exist the \"wind-farm-grid SSO modes\" led by wind turbine and the power grid and the \"inside-wind-farm SSO modes\" led by DVC links of different wind turbines, Further, based on the root locus, it is judged that the priority of suppressing \"wind-farm-grid SSO mode\" is higher than that of suppressing \"inside-wind-farm SSO modes\". Then using eigenvalue method, found the SSO suppression priority of the PMSGs with weak output power or far away from the collecting bus is higher than that of the PMSGs with strong output power or near the collecting bus. It also gives emergency parameter adjustment and order cut-off scheme considering the suppression priority. Time-domain simulation based on PSCAD/EMTDC platform verifies the validity of the above conclusions.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133958757","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