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2022 International Conference on Power Energy Systems and Applications (ICoPESA)最新文献

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Improving the Misalignment Tolerance of Wireless Charging System by Uniforming Magnetic Field of Double-D Coil 利用双d线圈磁场均匀化提高无线充电系统的误差容差
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754405
Li Ji, Chi Zhang, Fuchen Ge, Buren Qian
{"title":"Improving the Misalignment Tolerance of Wireless Charging System by Uniforming Magnetic Field of Double-D Coil","authors":"Li Ji, Chi Zhang, Fuchen Ge, Buren Qian","doi":"10.1109/ICoPESA54515.2022.9754405","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754405","url":null,"abstract":"The wireless power transmission system can transmit energy from the excitation side to the load side under the condition of complete electrical isolation, which is flexible, convenient and safe. Reasonably designing the structure and parameters of the system coupling coil can produce a relatively uniform magnetic field in a certain area and improve the anti offset performance of the system. In this paper, the uniformity of magnetic field corresponding to different structures of double-D coil is analyzed through finite element simulation. After finding out the optimal situation, ferrite is added for magnetic shielding, and its shielding effect is studied. The experimental results show that with the proposed optimizing method, the uniformity index of the magnetic field can be improved 10.2% and the mutual inductance fluctuation rates can be decreased 5%.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"24 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":"114815096","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
An Approach Combined CPWM with Passive Filter for Reducing EMI in a Flyback Converter 一种结合CPWM和无源滤波器的反激变换器电磁干扰抑制方法
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754442
Li Chentao, Tong Yajing, Xu Ping, Ma Qishuang
{"title":"An Approach Combined CPWM with Passive Filter for Reducing EMI in a Flyback Converter","authors":"Li Chentao, Tong Yajing, Xu Ping, Ma Qishuang","doi":"10.1109/ICoPESA54515.2022.9754442","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754442","url":null,"abstract":"Chaotic pulse width modulation(CPWM) was used in power electronic converters to reduce electromagnetic interference (EMI) in recent decades. However, the CPWM technique has a good effect on the higher frequency but less on the lower as expectation, to give a better EMI reduction under 5MHz, this article proposes a method that combined CPWM with a passive filter for reducing EMI in a flyback converter which is the most common topology used in switching mode power supply. Compared with traditional PWM, there is about 20dB reduction can be reached by the proposed method applied in a flyback converter with 100kHz, respectively. Moreover, traditional PWM and Chaotic PWM effects on ripple were also analyzed.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"15 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":"122294864","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
Thermo-electric Characteristic Analysis of Distributed Advanced Adiabatic Compressed Air Energy Storage for Integrated Energy System 分布式先进绝热压缩空气储能综合能源系统热电特性分析
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754432
Tianwen Zheng, Laijun Chen, Yue Zhang, S. Mei, Chengyun Zhang
{"title":"Thermo-electric Characteristic Analysis of Distributed Advanced Adiabatic Compressed Air Energy Storage for Integrated Energy System","authors":"Tianwen Zheng, Laijun Chen, Yue Zhang, S. Mei, Chengyun Zhang","doi":"10.1109/ICoPESA54515.2022.9754432","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754432","url":null,"abstract":"The advanced adiabatic compressed air energy storage (AA-CAES) technology has attracted increasing attention in integrated energy system due to its heat-electric co-storage and co-supply advantage. However, the miniaturization of AA-CAES system has become the key factor limiting its flexible application in integrated energy system. Aiming at the miniaturization technology bottleneck of AA-CAES, this paper proposes distributed advanced adiabatic compressed air energy storage (DAA-CAES) system which based on single-stage relay compression, single-stage relay turbine, multi-tank ladder pressure gas storage and single-tank heat storage architecture. On this basis, a simulation model of DAA-CAES system is established, and the influence of key parameters such as compressor pressure ratio, turbine expansion ratio, throttling pressure difference, and gas storage unit volume on system performance was analyzed. The results show that: (1) increasing the compressor pressure ratio, turbine expansion ratio and reducing the throttle pressure difference are helpful to improve the power generation efficiency of the system. (2) when the low-pressure gas storage tank adopts large volume gas storage tank unit, the power generation efficiency of the system is higher. (3) when the high-pressure gas storage tank adopts large volume gas storage tank unit, the heating efficiency of the system is higher.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"1 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":"128241836","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
Research on a New Multi-station Integrated Topology and Coordinated Control Strategy 一种新型多工位集成拓扑与协调控制策略研究
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754413
Zhang Ningyu, Huo Qunhai, Ma Ming, Wang Wenyong, Yin Jingyuan, Wei Tongzhen
{"title":"Research on a New Multi-station Integrated Topology and Coordinated Control Strategy","authors":"Zhang Ningyu, Huo Qunhai, Ma Ming, Wang Wenyong, Yin Jingyuan, Wei Tongzhen","doi":"10.1109/ICoPESA54515.2022.9754413","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754413","url":null,"abstract":"A new multi-station integrated system scheme is proposed to solve the problems caused by the large-scale access of distributed generation to the distribution network and the accelerated installation of electric vehicle charging piles, such as the imbalance of feeder power, the heavy overload of transformer, and the difficulty of transmission and distribution capacity expansion. The stable operation, coordinated control strategy and different working scenarios of the proposed topology are analyzed. This paper analyzes the small signal stability of the proposed multi-station integrated system, analyzes the operation mode and control mode of each converter in the proposed topology, and proposes a coordinated control strategy. Finally, based on RT-LAB OP5600, the working models of multi-station integrated system in different operation scenarios are built, and the effectiveness of the proposed multi-station integrated scheme topology and control strategy is verified by real-time digital simulation.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"59 1 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":"126960045","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
Wireless Monitoring System Design for High Voltage Bushing in Power Substation 变电站高压套管无线监控系统设计
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754437
Jia Xie, Hai-Yue Yang, G. Ding, Xiaoyu Hu, Chenchen Zhang, Jielong Wu
{"title":"Wireless Monitoring System Design for High Voltage Bushing in Power Substation","authors":"Jia Xie, Hai-Yue Yang, G. Ding, Xiaoyu Hu, Chenchen Zhang, Jielong Wu","doi":"10.1109/ICoPESA54515.2022.9754437","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754437","url":null,"abstract":"To overcome the problems of long period and inaccuracy of fixed-cycle power outage maintenance of bushing, the on-line monitoring system of high-voltage bushing is discussed, and a designed scheme of on-line monitoring device for bushing end shield is given, to ensure the timely detection of insulation defects of bushing equipment, which is of great significance to ensure the safe operation of power system. The structure of on-line monitoring unit and software flow in the monitoring system are introduced, and the local signal conditioning circuit, the highspeed acquisition circuit and the power supply circuit are designed on the basis of the on-line monitoring system structure. At last, the stability, effectiveness, and accuracy of the on-line monitoring system are proved by test experiment.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"5 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":"134058625","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
Fault Diagnosis for Power Transformer Based on Uniform Distribution of Grasshopper Optimization Algorithm Combined with Neural Network 基于均匀分布Grasshopper优化算法结合神经网络的电力变压器故障诊断
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754384
Wei Wang, Ruiliang Zhang, Yi Li, G. Lv, Zongyuan Luo, Hengshan Xu
{"title":"Fault Diagnosis for Power Transformer Based on Uniform Distribution of Grasshopper Optimization Algorithm Combined with Neural Network","authors":"Wei Wang, Ruiliang Zhang, Yi Li, G. Lv, Zongyuan Luo, Hengshan Xu","doi":"10.1109/ICoPESA54515.2022.9754384","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754384","url":null,"abstract":"The fault of power transformer endangers the safety of power system. In order to improve the fault diagnosis accuracy and avoid the inherent defects of traditional algorithms, an improved grasshopper optimization algorithm (IGOA) with back propagation (BP) neural network is proposed for power transformer diagnosis in this paper. Firstly, the IGOA optimization algorithm was improved and combined with BP neural network to optimize the model parameters. Then the optimized network model is substituted into transformer fault identification to improve the accuracy of fault diagnosis. The comparison between the prediction results of different models shows that the proposed model and method can accurately predict transformer faults.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"4 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":"130309960","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
Parameter Identification and Stability Analysis of DFIG DFIG参数辨识及稳定性分析
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754402
Yuexin Ma, Haoran Zhao, Peng Wang, Jia Luo, Wei-jie Zheng, Jinlong Wang
{"title":"Parameter Identification and Stability Analysis of DFIG","authors":"Yuexin Ma, Haoran Zhao, Peng Wang, Jia Luo, Wei-jie Zheng, Jinlong Wang","doi":"10.1109/ICoPESA54515.2022.9754402","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754402","url":null,"abstract":"A Doubly-Fed Induction Generator (DFIG) through the converter connected to the grid could cause subsynchronous oscillation. However, it is difficult to obtain control parameters from the manufacturer of the converter, making it challenge to assess stability issues. In this paper, a method based on machine learning algorithm to analyze grey box DFIG’s grid stability is proposed. Accurate identification of the inner loop and outer loop parameters on the rotor side converter is achieved. This method can solve the problem of identifying low sensitivity parameters. Parameter identification and stability analysis is based on model-driven and data-driven approach. The impedance model of grey box is firstly established, and then the control parameters are identified by machine learning technique. Finally, the system stability of DFIG is analyzed by generalized Nyquist. A simulation based on MATLAB/Simulink is provided to validate the performance of the proposed strategy.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"12 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":"133138345","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
A Parallel Vertical Structure (PVS) used in Highly Integrated GaN-Based Power Modules 一种用于高集成gan基功率模块的平行垂直结构(PVS)
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754454
Zhenyu Wang, Yongmei Gan, Fengtao Yang, Hang Kong, Junduo Wen, Yifan Zhang, Laili Wang, Yuquan Su
{"title":"A Parallel Vertical Structure (PVS) used in Highly Integrated GaN-Based Power Modules","authors":"Zhenyu Wang, Yongmei Gan, Fengtao Yang, Hang Kong, Junduo Wen, Yifan Zhang, Laili Wang, Yuquan Su","doi":"10.1109/ICoPESA54515.2022.9754454","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754454","url":null,"abstract":"Gallium nitride high electron mobility transistors (GaN HEMTs) are widely used in power converters due to their excellent switching speed and small conduction resistance. In many cases, it is necessary to place GaN HEMTs in parallel to increase the current capacity of the module to meet the needs of high-power applications. This paper designs a highly integrated GaN half-bridge power module using parallel vertical structure (PVS). The module uses three GaN HEMTs in parallel respectively in half bridge structure, which has large current capacity and outstanding current sharing effect. The paper comprehensively analyzes the dynamic characteristics and current sharing characteristics of parallel modules, establishes experimental prototypes of double pulse test circuit and buck circuit, and tests the prototypes. The results show that the design has high integration, small module size, low parasitic parameters, and excellent current sharing effect.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"10 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":"122223081","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
Transient Stability Boundary of a Droop-Controlled Voltage Source Converter with Different Control Parameters 不同控制参数下垂控电压源变换器的暂态稳定边界
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754460
Pingjuan Ge, Chunming Tu, Fan Xiao, Zekun Xiao, Yuchao Hou, Leqi Chen
{"title":"Transient Stability Boundary of a Droop-Controlled Voltage Source Converter with Different Control Parameters","authors":"Pingjuan Ge, Chunming Tu, Fan Xiao, Zekun Xiao, Yuchao Hou, Leqi Chen","doi":"10.1109/ICoPESA54515.2022.9754460","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754460","url":null,"abstract":"Voltage source converters (VSCs) equipped with P-f and Q-U droop control can provide voltage and frequency support for power grid. The safe and stable operation of the VSC is of great significance to the power system. However, under fault conditions, a VSC may lose transient stability, similar to synchronous generators (SGs). The transient stability boundary of VSCs can provide guidance for the transient control, but there are few researches about the quantitative description of VSC transient stability boundary. Based on these, the critical clearing angle (CCA) and critical clearing time (CCT) are analyzed quantitatively to describe the transient stability boundary of a VSC under different control parameters and fault conditions. Finally, simulation tests are performed to validate the correctness of the theoretical analysis.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"97 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":"127546038","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
Coordinating Active Distribution Networks with Multi-Microgrids: An ADMM-based Decentralized Adjustable Robust Operation Model 多微电网协调主动配电网:基于admm的分散可调鲁棒运行模型
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754429
J. Zhai, Chenyixuan Ni, Philippe Nimmegeers, Yuning Jiang
{"title":"Coordinating Active Distribution Networks with Multi-Microgrids: An ADMM-based Decentralized Adjustable Robust Operation Model","authors":"J. Zhai, Chenyixuan Ni, Philippe Nimmegeers, Yuning Jiang","doi":"10.1109/ICoPESA54515.2022.9754429","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754429","url":null,"abstract":"This paper proposes a decentralized adjustable robust operation model achieving the coordinated operation between an active distribution network (ADN) and microgrids (MGs). Thanks to the autonomous characteristic and heterogeneity of the individual agents in ADNs with multi-MGs, we develop a tailored alternating direction method of multipliers (ADMM)based fully decentralized framework. The linear decision rules are utilized to reformulate the microgrid two-stage adjustable robust operation problem as a computationally tractable solution such that the proposed adjustable robust extension of decentralized ADMM is capable of handling renewable energy uncertainties. The numerical results illustrate the effectiveness of the proposed model.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"34 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":"126987613","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: 2
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