2023 IEEE International Conference on Power Science and Technology (ICPST)最新文献_第5页

Design of a Collection Task Scheduling Management App for Intelligent IoT Terminal 智能物联网终端采集任务调度管理App设计

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165302

Libin Jian, Qiaoyan Quan, Wei Wei, Ge Wu, Chang Shu, Xiangxiang Liu

引用次数: 0

Study on the Difference of Multi-parameter Characteristics of Oil-immersed Transformer under Internal Discharge and External Disturbance 内放电与外扰动作用下油浸变压器多参数特性差异研究

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165025

Lai Jun, Zhang Jiangyang, Xiong Junhui, Wang Xinwei, Wang Xiao, Liu Gaoming

引用次数: 0

Electrical Stress Analysis for Vacuum on-Load Tap-Changer Transition Circuits under the Influence of Harmonic Currents 谐波影响下真空有载分接开关过渡电路的电应力分析

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165569

G. Qian, Weiju Dai, Z. Hong, Ning Zhang, Jing Xu, Jixiang Wang, Jian Hao

{"title":"Electrical Stress Analysis for Vacuum on-Load Tap-Changer Transition Circuits under the Influence of Harmonic Currents","authors":"G. Qian, Weiju Dai, Z. Hong, Ning Zhang, Jing Xu, Jixiang Wang, Jian Hao","doi":"10.1109/ICPST56889.2023.10165569","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165569","url":null,"abstract":"With the breakthrough and performance improvement of vacuum switching technology in the field of research and development of on-load tap changer (OLTC) for large power transformers, converter transformers use vacuum OLTC to regulate their complex operating conditions to meet the safe, stable and efficient operation of the UHV DC transmission system. However, because the AC side of the converter has a special current waveform with high harmonic content, the electromagnetic transient waveform of the vacuum OLTC switching process is very complex. The switching characteristics and breaking capacity of different OLTC transition circuit structures are very different, which directly affects the operating characteristics and life loss of vacuum OLTC for the converter. Therefore, this paper proposes an analytical method for the electrical stress of vacuum OLTC vacuum tubes for converters with different harmonic combinations, focusing on the analytical formula of switching the electrical stress of single-resistance transition circuit vacuum tubes, and then exploring the influence mechanism of harmonics on the switching characteristics of OLTC. The method can provide theoretical support and references for the structural design, parameter selection, and operation, and maintenance optimization of converter on-load tap changer in actual DC projects.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122732388","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

Analysis and Modeling of Inverter based Distributed Storage Considering Short Circuit Characteristic 考虑短路特性的逆变器分布式存储分析与建模

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165542

Jie Wang, Zhaofeng Zhang, Zhen Li, Zhengwei Zhang, Y. Liu

引用次数: 0

Comprehensive Evaluation Method of Distribution Network Planning Schemes Based on Spatial Information 基于空间信息的配电网规划方案综合评价方法

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165562

Q. Gao, Lei Wang, Zhaoyu Liu, Xiaodi Zhang

引用次数: 1

Characteristics Analysis of Three-Phase Symmetrical Phase-Locked Loop under Non-Ideal Grid Conditions 非理想电网条件下三相对称锁相环特性分析

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165059

Tianyi Su, Hua Lin, Shaojie Li, Xingwei Wang

引用次数: 0

Research on the Induced Electric Field of Human under EHV AC Transmission Lines Based on BAS-CSM Algorithm 基于BAS-CSM算法的超高压交流输电线路下人体感应电场研究

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165181

Xiaojuan Li, Wei He, Yiyao Tang, Shigang Gao, Yankai Xie, Y. Liu, Yongming Li, Heming Zhao

{"title":"Research on the Induced Electric Field of Human under EHV AC Transmission Lines Based on BAS-CSM Algorithm","authors":"Xiaojuan Li, Wei He, Yiyao Tang, Shigang Gao, Yankai Xie, Y. Liu, Yongming Li, Heming Zhao","doi":"10.1109/ICPST56889.2023.10165181","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165181","url":null,"abstract":"The space electric field generated by high-voltage AC transmission lines will act on people and objects around them through electrostatic induction. When the induced voltage is too high, the human body will experience transient electric shock, so it’s necessary to limit the ground electric field. To address the problem of electric field effects on human body under AC transmission lines, the beetle antennae search algorithm (BAS) optimization charge simulation method (CSM) is applied to calculate the electric field distribution under EHV AC transmission lines, and the finite element method is used to analyze the effects of power frequency electric field intensity on human body under 500kV EHV AC transmission lines. The results show that the presence of the human body reduces the electric potential around it and the power frequency electric field will be strongly distorted at the human head. The distribution of the electric field and induced current density around the human body under 500kV AC transmission lines is quantitatively calculated to provide a reference for assessing the safety of the human body exposed to EHV AC transmission lines.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128765909","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

A Sub-synchronous and Hyper-synchronous Risk Assessment Method for Direct-drive Wind Turbine Based on Dynamic Characteristics 基于动态特性的直驱风电机组次同步和超同步风险评估方法

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165543

Shuxian Yi, Xie Huan, Tianzhi Cao, Peng Zhang

{"title":"A Sub-synchronous and Hyper-synchronous Risk Assessment Method for Direct-drive Wind Turbine Based on Dynamic Characteristics","authors":"Shuxian Yi, Xie Huan, Tianzhi Cao, Peng Zhang","doi":"10.1109/ICPST56889.2023.10165543","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165543","url":null,"abstract":"This paper proposes a sub-synchronous and hyper-synchronous risk assessment method for direct-drive wind turbine based on dynamic characteristics. Firstly, this paper establishes the linearization model of direct drive wind turbine and analyzes the influence of inner loop and outer loop control parameters of grid-side converter on oscillation mode, which points out that the oscillation mode is determined by the outer loop parameters of grid-side converter while the inner loop parameters have little effect. Secondly, based on dominant mode method the high-order transfer function of direct-drive wind turbine can be reduced to a second-order system. Thirdly, risk evaluation index of sub-synchronous and hyper-synchronous oscillation for direct drive wind turbine is proposed, which includes overshoot and adjusting-time to fully consider the initial amplitude caused by the disturbance and the attenuation speed of the oscillation after the disturbance. Finally, the feasibility of the proposed risk assessment method and the effectiveness of the evaluation index are verified through calculation example and simulation result.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129099596","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

Optimal Allocation Strategy of Frequency Modulation Power for Multiple Energy Storage Systems Considering Dual Constraints of Frequency Modulation Cost and Frequency Modulation Capability 考虑调频成本和调频能力双重约束的多储能系统调频功率优化分配策略

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165072

Yongming Peng, Wenbo Si, Haiji Zhao, Changlin Lv, Chengzhe Liu, Fei Xu, Ling Hao, Junhui Li

{"title":"Optimal Allocation Strategy of Frequency Modulation Power for Multiple Energy Storage Systems Considering Dual Constraints of Frequency Modulation Cost and Frequency Modulation Capability","authors":"Yongming Peng, Wenbo Si, Haiji Zhao, Changlin Lv, Chengzhe Liu, Fei Xu, Ling Hao, Junhui Li","doi":"10.1109/ICPST56889.2023.10165072","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165072","url":null,"abstract":"Aiming at the power allocation problem of multiple energy storage power stations distributed at different locations in the regional power grid participating in frequency modulation services, a frequency modulation power optimization allocation strategy for multiple energy storage systems considering the dual constraints of frequency modulation cost and frequency modulation capability is proposed. Firstly, a multi-objective optimization allocation model for frequency modulation power is constructed with the minimum frequency modulation cost and minimum deviation of the state of charge (SOC) for energy storage power plants. Secondly, using Pareto based multi-objective genetic algorithm (MOGA) to solve the model, introduce adaptive weight coefficients and fuzzy membership functions for each objective function regarding the frequency regulation demand of the power grid and the deviation of the SOC of energy storage stations, construct a comprehensive satisfaction function to make decisions on the most advantageous points on the Pareto frontier, in order to obtain the optimal output of each energy storage station that can adapt to the frequency regulation requirements of the power grid. Finally, simulation analysis was conducted on the proposed strategy in this article, and the results showed that: The proposed strategy not only enhances the frequency regulation economy of the regional power grid, but also helps to restore the SOC of the energy storage power station.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116978484","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

A Method of Faulty Line Selection for the Flexible Grounding System Based on the Parallel Resistance Identification 基于并联电阻辨识的柔性接地系统故障选线方法

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI: 10.1109/ICPST56889.2023.10165176

X. Q. Wang, W. Shao, Y. F. Zhao, Z. M. Li

{"title":"A Method of Faulty Line Selection for the Flexible Grounding System Based on the Parallel Resistance Identification","authors":"X. Q. Wang, W. Shao, Y. F. Zhao, Z. M. Li","doi":"10.1109/ICPST56889.2023.10165176","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165176","url":null,"abstract":"Aiming at the difficulty in selecting the fault lines when the high resistance grounding system of a distribution network, a method of faulty line selection for flexible grounding system based on parallel resistance identification is proposed. The relationship between each line's zero-sequence current and the bus's zero-sequence voltage are analyzed in detail after the parallel resistance was put into use, based on which an equivalent model with parallel resistance is established for each feeder. The characteristic differences between the faulty and sound feeders are reflected by deriving the parallel resistance parameters fitted to each feeder with the method of least squares. Faulty line selection criteria are formed by the feature that the fitted value of parallel resistance for which the faulty line is close to actual value and the sound line is much greater than the actual value. Simulation results of the MATLAB show that this method is suitable for the ground faults with a transition resistance less than 3000 ohms. It has rather high reliability under the different faulty conditions.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132404965","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