2022 Asian Conference on Frontiers of Power and Energy (ACFPE)最新文献_第5页

A self-attention-embedded deep learning model for phasor measurement unit-based post-fault transient stability prediction 基于相量测量单元的故障后暂态稳定预测自关注嵌入深度学习模型

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952178

Xiaoxuan Han, Yanlin Jin, Ge Wu, Sixin Guo, Tingjian Liu

引用次数: 1

Analysis and Improvement of Synchronous Frequency Resonance Caused by Imbalance DC Components 直流元件不平衡引起同步频率共振的分析与改进

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952263

Yu Gu, Jianbo Yi, Zhenyuan Zhang, Qi Huang

引用次数: 0

Inertia control and dynamic performance optimization of interlinking converter based on parameter adaptation 基于参数自适应的互连变换器惯性控制与动态性能优化

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952343

Chunqiao Jin, Chun-juan Jia, Jun Fu, Shicong Wang

引用次数: 0

Research on Reliability Life Model of Thyristor in HVDC Converter Valve System in High-altitude Environment 高压直流换流阀系统晶闸管可靠性寿命模型研究

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952255

Qiang Li, Yantao Lou, C. Su, Ziyi Xu, Binbing Xia, Feng Wang

{"title":"Research on Reliability Life Model of Thyristor in HVDC Converter Valve System in High-altitude Environment","authors":"Qiang Li, Yantao Lou, C. Su, Ziyi Xu, Binbing Xia, Feng Wang","doi":"10.1109/ACFPE56003.2022.9952255","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952255","url":null,"abstract":"Under the high-altitude environment, air humidity, temperature, pressure, atmospheric neutron and other factors will affect related electrical equipment, it also brings difficulties to the reliable operation of HVDC transmission projects, especially the thyristor, the key device in the converter valve system. Establishing an accurate device life model considering the influence of specific engineering application environmental conditions is of great significance to improve the reliability of devices and the setting of operation and maintenance schemes. Based on the existing accelerated life test theory and the working characteristics of high-power thyristors, this paper builds a thyristor life test chamber at high altitudes. Through the long-term withstand voltage of all the tested thyristors, the actual running time of the breakdown thyristors is recorded, and finally the life prediction model between the thyristor failure rate and different bias voltages in the high-altitude environment is obtained. The model and test results show that the failure rate of thyristor is positively correlated with the applied bias voltage. The failure rate model of thyristor under voltage stress in high-altitude area established by this test can be used to calculate the failure rate of thyristor under different operating conditions of actual engineering in high-altitude environment, and it has important guiding significance for predicting the life and improving the reliability of the entire HVDC transmission system.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127927687","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

Research on Scheduling of Hybrid AC/DC Distribution Network Considering V2G 考虑V2G的交直流混合配电网调度研究

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952348

Bin Che, Chuan He, Baosheng Chen, Yuliang Qing, Qiang Ji

引用次数: 0

Optimal Allocation of Distributed Energy Storage Systems in Weak Grid: A Case Study of Ali, Tibet 弱电网下分布式储能系统的优化配置——以西藏阿里为例

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952290

C. Liu, Anni Lin, Boqi Zhang, Weikang Kong, Miao Zhu, S. Wen

引用次数: 0

A PCA-based Evaluation Method for Distribution Network Engineering Contractors 基于pca的配电网工程承包商评价方法

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952262

Jiyu Li, Xue Chen, Dacai Chen, Zhiyuan Guo, Dingwen Yu, Zhibin Xu, Feixiong Chen, Zhenguo Shao

{"title":"A PCA-based Evaluation Method for Distribution Network Engineering Contractors","authors":"Jiyu Li, Xue Chen, Dacai Chen, Zhiyuan Guo, Dingwen Yu, Zhibin Xu, Feixiong Chen, Zhenguo Shao","doi":"10.1109/ACFPE56003.2022.9952262","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952262","url":null,"abstract":"The evaluation for distribution network engineering contractors is contributed to the development of power system. However, the existing evaluation method which focuses on the overall assessment of contractors is lacking effective evaluation rules for the single project. To deal with this issue, we propose a PCA-based evaluation method for distribution network engineering contractors, to supplement the existing evaluation system. First, evaluation indexes for distribution network engineering contractors were selected by principal component analysis (PCA). The dimensions of the raw data can be reduced and main feature components of data can be extracted by PCA. Then, the weight of each index was calculated to enhance the applicability of the selected index. Finally, based on the selected quality indexes and the weight of them, we propose an evaluation method for the single project. Experiments have been carried out and the results shows that the proposed method is validated to be effective when evaluating the single project for the distribution network engineering contractors.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115714487","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

Projection Method of Energy Storage System in Power Spot Market for Renewable Accommodation 可再生能源住宅电力现货市场储能系统的投影方法

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952252

D. Peng, Yawei Xue, Hongyang Liu, Haoran Zhao, Xiaorui Hu, Ziyan Jiang, Shu Wang

引用次数: 0

D-Q Small-Signal Impedance Analysis of Improved Virtual Synchronous Generators for Low-frequency Transmission System 低频输电系统改进型虚拟同步发电机的D-Q小信号阻抗分析

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952238

Jing Wu, Yuchao Shi, Haitao Zhang, Zhibin Ye, Chenchen Li, Guofeng Xu

{"title":"D-Q Small-Signal Impedance Analysis of Improved Virtual Synchronous Generators for Low-frequency Transmission System","authors":"Jing Wu, Yuchao Shi, Haitao Zhang, Zhibin Ye, Chenchen Li, Guofeng Xu","doi":"10.1109/ACFPE56003.2022.9952238","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952238","url":null,"abstract":"With concerns about the decline of the original inertia of power system, virtual synchronous generator (VSG) is introduced and becomes a research hotspot rapidly. To analysis the impedance characteristic of VSG and grid-tied system stability, this paper firstly proposes a novel outer control loop of power for the VSG. Combined with the classical inner-current loop, fast current regulation and over-current protection and vector control can be realized. Afterwards, small-signal impedance models of VSG as well as inner-current and outer-power loops in the synchronous reference (d-q) frame are derived. As the d-axis of the d-q frame of VSG varies with the command reference and doesn't always coincide with the system voltage vector during steady state, an impedance transformation matrix (ITM) is introduced, through which all the impedances can be reconstructed to a unified d-q frame for the sake of comparison and analysis. On the basis of the work above, the impedance characteristics and related influence factors like inertia, damping factor are analyzed. Results show that: 1) Inertia and damping factors have little effects on the impedance characteristic; 2) Compared with PLL-based inverter impedance, the impedance characteristic of VSG-based inverter is much better for system stability; 3) At the unity power factor working point, the resistance part of is positive, being of importance for suppressing sub-synchronous oscillation caused by negative resistance. Finally, simulation of data on MATLAB /Simulink is built to testify the validity of the small-signal impedance models.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123706587","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

Research on Condition Assessment and Fault Diagnosis of Power Transformers 电力变压器状态评估与故障诊断研究

2022 Asian Conference on Frontiers of Power and Energy (ACFPE) Pub Date : 2022-10-01 DOI: 10.1109/ACFPE56003.2022.9952306

Hanfeng Wang, Qiannan Xue, Shiqi Kang, Peng Zhang, Che Xu, C. Yan

{"title":"Research on Condition Assessment and Fault Diagnosis of Power Transformers","authors":"Hanfeng Wang, Qiannan Xue, Shiqi Kang, Peng Zhang, Che Xu, C. Yan","doi":"10.1109/ACFPE56003.2022.9952306","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952306","url":null,"abstract":"Performing condition assessment and fault diagnosis for power transformers is an indispensable part to guarantee the safe and economical operations of the power grid. Condition monitoring is the basis of condition assessment and fault diagnosis, and the accuracy of collected data will ensure the accuracy of assessment and diagnosis from the source. During the construction of smart grids, the historical operating data of power transformers present various characteristics such as large quantity and numerous types, so that the condition assessment and fault diagnosis algorithms gradually transition from the threshold judgment method to the machine learning algorithm. In this paper, the methods of transformer condition monitoring in recent years are summarized, and some common research methods of power transformer condition assessment and fault diagnosis are outlined. Meanwhile, the applications of traditional algorithms and artificial intelligence algorithms are introduced. In addition, the existing challenges faced in this field are briefly analyzed, and an outlook on the main research directions for the future is accordingly provided.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131619039","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