2023 IEEE 6th International Electrical and Energy Conference (CIEEC)最新文献_第2页

Effect of high-frequency non-sinusoidal excitation on the magnetic moment deflection angular velocity of nanocrystalline alloys under saturation magnetization 高频非正弦激励对饱和磁化纳米晶合金磁矩偏转角速度的影响

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10167310

Y. Wang, L. Zou, Li Zhang, Kaihang Guo, Yongjian Li

引用次数: 0

Effects of Conductor Erection Modes on the Ground Wire Power Loss for Double-Circuit Transmission Lines 导线架设方式对双回线接地线损耗的影响

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166216

Taoning Jiang, Xiaoqian Ma, Peng Sun, Longzhi Xie, Lijing Li

{"title":"Effects of Conductor Erection Modes on the Ground Wire Power Loss for Double-Circuit Transmission Lines","authors":"Taoning Jiang, Xiaoqian Ma, Peng Sun, Longzhi Xie, Lijing Li","doi":"10.1109/CIEEC58067.2023.10166216","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166216","url":null,"abstract":"When our research is concerned with the induced power loss caused by ground wires, the conductor erection mode that whether conductors of different circuits are installed on the same tower is a key technical scheme. It is a common practice that the ground wire power loss will not be taken into account in the life cycle cost, which will affect the electric energy transmission efficiency and the economic benefit of power grid. Although the power loss is only a small percentage of electric energy, the total quantity in the entire power grid is huge beyond our imagination with the increase of the power deliver and the improvement of the voltage level at present. Therefore, the power loss should be considered in the evaluation of life cycle cost when we adopt conductor erection mode. Taking the 750kV transmission lines widely constructed in northwest China as example, this paper analyses the characteristics and economic indexes of double-circuit transmission lines on the same tower and two parallel single-circuit transmission lines under different phase sequence arrangement to recommend the best energy saving conductor erection mode and the optimal phase sequence arrangements.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"137 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":"121368128","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

Adaptability Enhancement of LCL-Type Grid-Connected Inverter with Single-Loop Inverter-Side Current Feedback to Complex Power Grid 单回路电流反馈lcl型并网逆变器对复杂电网的适应性增强

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165718

Haojie Ding, Hua Lin, Shaojie Li, Xingwei Wang

{"title":"Adaptability Enhancement of LCL-Type Grid-Connected Inverter with Single-Loop Inverter-Side Current Feedback to Complex Power Grid","authors":"Haojie Ding, Hua Lin, Shaojie Li, Xingwei Wang","doi":"10.1109/CIEEC58067.2023.10165718","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10165718","url":null,"abstract":"Grid-connected Voltage Source Inverters (VSI) equipped with LCL filters are attractive in utility applications for their better power quality features. The single-loop inverter-side current feedback (ICF) control is often used due to its low cost in practice. A stable single-loop ICF-controlled grid-connected system designed under ideal power grid (i.e., grid impedance is 0) can still maintain stability under inductive power grid (i.e., grid impedance only contains inductance), but may be unstable under complex power grid (i.e., grid impedance contains inductance and capacitance simultaneously) when frequency responses of inverter output admittance and equivalent grid admittance intersect at non-passive frequency region of inverter output admittance. Literatures have revealed that non-passive region of inverter output admittance occurs above critical frequency fcri due to digital control delay, and that fcri is fs/6 considering typical delay of 1.5 times Ts. Various phase compensators proposed in literatures can help to improve fcri for enhancing the adaptability of single-loop ICF-controlled grid-connected inverter to complex power grid by inserting them in series or parallel with current regulator. In this paper, a biquadratic compensator is inserted in series with current regulator and parameter design of biquadratic compensator is presented. The fcri is improved to 0.407fs with the biquadratic compensator designed in this paper, which is higher than fcri in literatures.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"15 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":"127257979","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

Sensing characteristics of black phosphorus on SF6 decomposition components based on the First-principle 基于第一性原理的黑磷对SF6分解组分的传感特性

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166554

Xiangyu Tan, Fangrong Zhou, Yifan Zhang, Yi Li

引用次数: 0

Real-Time Estimation of Parameters in Inductive-Resistive Power Networks Using Second-Order Extended Kalman Filter 基于二阶扩展卡尔曼滤波的电感电阻电网参数实时估计

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166753

Maoqianz Xiao, Junze Xiao, Zhongye Zheng, Siming Ma

引用次数: 0

Average Voltage Observer Based Distributed Secondary Sliding Mode Control with Reactive Power Sharing for Microgrids 基于平均电压观测器的微电网无功共享分布式二次滑模控制

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166907

Lei Huang, Wei Sun, Ziran Yan, Qiyue Li, Weitao Li

{"title":"Average Voltage Observer Based Distributed Secondary Sliding Mode Control with Reactive Power Sharing for Microgrids","authors":"Lei Huang, Wei Sun, Ziran Yan, Qiyue Li, Weitao Li","doi":"10.1109/CIEEC58067.2023.10166907","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166907","url":null,"abstract":"Combining distributed power generation units into self-operating islanded microgrids is conducive to improving the penetration rate of new energy power generation. However, the impedance mismatch leads to the contradiction between voltage regulation and reactive power sharing in islanded microgrids. To this end, based on the average voltage observer, this paper proposes a distributed sliding mode secondary control strategy, which can adjust the average voltage of the microgrid to the reference value while realizing reactive power sharing. In this paper, first, the hierarchical control architecture for islanded mi-crogrids based on droop control is shown; next, the deficiencies of the primary control are analyzed, and the goals of the secondary control are given; after that, the average voltage observer used in secondary control is introduced; then, the distributed sliding mode secondary voltage controller is designed by selecting the sliding mode function combined with the exponential reaching law; finally, the simulation experiment is carried out to verify the performance of the proposed control strategy.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"50 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":"124928021","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

Empirical formula for the frequency breakdown voltage of C4F7N/CO2 gas mixtures C4F7N/CO2混合气体频率击穿电压的经验公式

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166911

Tao Zilin, Zheng Yu

引用次数: 0

Reliability Evaluation of Distribution System Considering its Interactions with Microgrids 考虑微电网相互作用的配电系统可靠性评估

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166657

Yuxin Ye, Yuxiong Huang, Xu Rong, Gengfeng Li, Z. Bie, Chen Chen

引用次数: 0

Simulation and Analysis of Polypropylene Cable Based on Electro-Thermal Multi-physics Coupling 基于电热多物理场耦合的聚丙烯电缆仿真分析

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165923

Qihui Feng, Changbao Xu, Mingyong Xin, Zejie Tan, Q. Lv, Zhong Liu

{"title":"Simulation and Analysis of Polypropylene Cable Based on Electro-Thermal Multi-physics Coupling","authors":"Qihui Feng, Changbao Xu, Mingyong Xin, Zejie Tan, Q. Lv, Zhong Liu","doi":"10.1109/CIEEC58067.2023.10165923","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10165923","url":null,"abstract":"Compared to XLPE cables, Polypropylene cable has the advantages of simple manufacturing process, high conveying capacity and recyclability, so PP cable will have a wide market in the future and it is essential to study the operational status of PP cable. In this paper, the physical field states of a PP cable under operating conditions is investigated by building an electrical-thermal coupling simulation model. The results show that when the current of the cable reaches 800A, the electric field strength distribution of the insulation layer tends to be flat along the radius of the cable, so it is recommended that the cable is operated at about 800 A. When the current is small, the thickness of the insulation layer has a small effect on the temperature difference between the inside and outside of the insulation layer, while the temperature difference of the insulation layer increases obviously with the increase of insulation thickness when the current is higher. When the cable is laid in the tunnel, the temperature of the conductor is 12.9 °C lower than that of directly buried lying. The heat dissipation efficiency of tunnel lying is significantly higher than that of directly buried lying.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"7 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":"123700940","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

Congestion Management of Urban Power Grid Incorporating EV Load Spatial Flexibility 考虑电动汽车负荷空间灵活性的城市电网拥塞管理

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166829

Yujie Sheng, Mengjie Liu, Min Chen, Qinglai Guo

引用次数: 0