2023 IEEE 6th International Electrical and Energy Conference (CIEEC)最新文献_第10页

Research on Wireless Power Transmission Based on Electromagnetic Metamaterials 基于电磁超材料的无线电力传输研究

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10167417

Luo Bing, Xu Yongsheng, Xu Bin, Li Xiaonan, Liu Guoqiang, Zhang Wenwei

引用次数: 0

Evaluation of Aging State of Composite Insulators Based on Terahertz Method 基于太赫兹法的复合绝缘子老化状态评价

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165889

Chen Zhenyu, Chen Zhuo, Tong Xiangwei, Kuang Jianghua, Ren Xiang, Kang Longyu

引用次数: 0

A Magnetic Coupling Structure Design of Wireless Charging UAVs with Multidirectional Misalignment Improvement and Output Fluctuation Suppression 一种改进多向失调和抑制输出波动的无线充电无人机磁耦合结构设计

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166433

Xiaofei Li, Yu Wu, Heshou Wang, X. Dai, Yue Sun, Jing Xiao, Zhiping Zuo

引用次数: 0

Oscillation Characteristics and Extraction Method of AC Signal During the Small Disturbance Dynamic Process of Power Systems 电力系统小扰动动态过程中交流信号的振荡特性及提取方法

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166425

Penghui Wu, Sicheng Wang, Xiaoming Yuan

{"title":"Oscillation Characteristics and Extraction Method of AC Signal During the Small Disturbance Dynamic Process of Power Systems","authors":"Penghui Wu, Sicheng Wang, Xiaoming Yuan","doi":"10.1109/CIEEC58067.2023.10166425","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166425","url":null,"abstract":"Nowadays, the oscillation form of alternating electrical quantities such as voltage and current in power system oscillation is becoming more and more complex. In order to correctly obtain the characteristics of signal oscillation for system oscillation analysis, it's necessary to understand the formation and evolution mechanism of AC signals. In the dynamic process of oscillation after the system is disturbed, the unbalanced power drive equipment changes the amplitude/frequency of the internal-voltage in the port to generate alternating voltage/current in the network. Each alternating electrical variables of the system evolves in the form of its amplitude/frequency modulated. Based on this, this paper first defines the oscillation characteristics of the AC signal at the initial stage of the small disturbance dynamic process of power system based on the above AC signal formation and evolution mechanism; Then the corresponding signal characteristics extraction idea and a corresponding demodulator structure are proposed; Finally, simulation verifies the effectiveness of the demodulator.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122181431","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

Improved Three-vector Control Based On Minimum Current Ripple 基于最小纹波电流的改进三矢量控制

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10167330

Xiaoguang Zhang, Ji Li

引用次数: 0

No-Load Magnetic Field Prediction of Surface-Mounted Permanent Magnet Machines with a Quasi-Regular Polygon Rotor Core Based on the Conformal Mapping Method 基于保角映射法的准正多边形转子铁芯表面贴装永磁电机空载磁场预测

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166574

Chuntao Chen, Xinzhen Wu

引用次数: 0

Power Loss Assessment of Three-Level Neutral-Point-Clamped Inverter With DPWM Modulation DPWM调制三电平中性点箝位逆变器的功率损耗评估

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165761

M. Luo, Mingrui Zou, Fuli Niu, Yuxi Liang, P. Sun, Zheng Zeng

{"title":"Power Loss Assessment of Three-Level Neutral-Point-Clamped Inverter With DPWM Modulation","authors":"M. Luo, Mingrui Zou, Fuli Niu, Yuxi Liang, P. Sun, Zheng Zeng","doi":"10.1109/CIEEC58067.2023.10165761","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10165761","url":null,"abstract":"The three-level neutral-point-clamped (3L NPC) inverter is widely employed for the renewable energy application. To achieve lower life cycle cost, the efficiency of 3L NPC inverter is highlighted. Compared to the continuous PWM (CPWM) modulation, the discontinuous PWM (DPWM) modulation is preferred to reduce switching and conduction losses. Nevertheless, the power loss assessment of the DPWM modulation is a remaining challenge for the 3L NPC inverter. In this paper, the general mathematical model of the DPWM modulations is created to quantify the power loss of the 3L NPC inverter. The duty cycles of the power device are modeled for the unipolar and bipolar CPWM modulations, even for the DPWM modulations of the 3L NPC inverter. Moreover, the switching and conduction losses of the 3L NPC inverter are analyzed, considering different CPWM and DPWM modulations. The experimental test rig and switching trajectory are presented to observe the specific loss of the commercial 3L NPC power module. Besides, comprehensive comparisons of the power loss dependent on PWM modulation are demonstrated for the 3L NPC inverter. It is found that the theoretical predictions of the proposed model are consistent with the simulated results of the PLCES tool. Due to the optimal power loss, the DPWM1 is recommended for the 3L NPC inverter application. The methodologies and findings in this paper are also helpful for the 3L T-type NPC (TNPC) and active NPC (ANPC) inverter application.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127112619","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

Surface modification of Poly-p-phenylene benzobisoxazole fiber by dielectric barrier discharge for magnet reinforcement 用介质阻挡放电法对聚对苯并二苯恶唑纤维进行表面改性

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10164841

Z. Xiong, Zhuocheng Song, K. Luo, Mengqi Li, Tao Peng, Y. Lv

{"title":"Surface modification of Poly-p-phenylene benzobisoxazole fiber by dielectric barrier discharge for magnet reinforcement","authors":"Z. Xiong, Zhuocheng Song, K. Luo, Mengqi Li, Tao Peng, Y. Lv","doi":"10.1109/CIEEC58067.2023.10164841","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10164841","url":null,"abstract":"At present, Poly-p-phenylene benzobisoxazole (PBO) fiber is one of the most preferred reinforcement materials for magnet. However, the poor interface performance between the PBO fiber and resin matrix has become the bottleneck of the pulse magnetic field intensity improvement. Surface modification of the PBO fiber may be an effective way to solve this problem. In this paper, PBO fibers were treated by atmospheric dielectric barrier discharge (DBD) in air under different treatment time. It is found that when the discharge power density remained unchanged at 8.49W/cm2, the optimal treatment time is 60s. In this case, the shear strength of PBO fiber-resin interface increases up to 52.77% compared with the untreated, while the tensile strength of fiber monofilament only decreases 4.73%. The plasma treatment results in a large number of deep pits and protrusions on the surface of PBO fibers and a significant increase in roughness. The relative content of C element on the surface of PBO fiber decreases significantly, the content of O element increases obviously, and the content of N element increases slightly. Polar groups -O-C=N- and -C=O- are introduced through grafting copolymerization reaction, which enhances the chemical activity and wettability of the fiber surface. All of these contribute to the interfacial shear strength increase between the PBO fiber and the resin.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127451260","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

Wind Speed Estimation for PMSG-Based WECS under Power Limit Control 功率限制下基于pmsg的wcs风速估计

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166912

Wei Chen, Wenbin Yang, Qing Chen, Jingyi Li, H. Geng

引用次数: 0

Grid-forming Control of the Grid-connected Voltage Source Converter System 并网电压源变换器系统的成网控制

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166730

Xiaoxin Wu, Yue Zhu, Shun Sang, F. Yu

引用次数: 0