2022 Asia Power and Electrical Technology Conference (APET)最新文献_第7页

Research on the Method of Gun Power Failure Prediction Based on Improved Grey Neural Network 基于改进灰色神经网络的火炮动力故障预测方法研究

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072817

Liu Qitao, Zhang Zhipeng

引用次数: 0

A Triboelectric-Electromagnetic Hybrid Nanogenerator Working in Rolling Friction Mode for Self-powered Environmental Monitoring System 用于自供电环境监测系统的滚动摩擦模式摩擦电-电磁混合纳米发电机

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073003

Jiajia Zhang, Jinyu Zhang, Xingliang Tian, Dong Yan, Qiangjing Yuan, Xinru Zhang

{"title":"A Triboelectric-Electromagnetic Hybrid Nanogenerator Working in Rolling Friction Mode for Self-powered Environmental Monitoring System","authors":"Jiajia Zhang, Jinyu Zhang, Xingliang Tian, Dong Yan, Qiangjing Yuan, Xinru Zhang","doi":"10.1109/APET56294.2022.10073003","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073003","url":null,"abstract":"Harvesting rotational energy from the environment and efficiently converting it into available electrical energy to power wire sensors nudes is gaining popularity, particularly in the context of the Internet of Things (IoT). However, as a promising solution for energy harvesting, the majority of triboelectric nanogenerators (TENGs) working in sliding friction mode generate much thermal energy and low output current has been a limitation of them to be popularized. Here, a triboelectric-electromagnetic hybrid nanogenerator working in rolling friction mode has been proposed. The infrared temperature measurement photo of the electrode surface temperature after 20,000 contact-separation cycles shows that the TENG working in rolling friction mode generates less thermal energy than that working in sliding friction mode. The maximum output power of electromagnetic generator (EMG) can attain 33.28 mW at a rotation speed of 500 r/min, while the TENG has a maximum output power of 129 $mu {mathrm{W}}$. Furthermore, a self-powered environmental temperature monitoring system has been realized. This study demonstrates that there is a new way to detect ambient temperature for low-power consumption scenes.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123901715","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 Multi-objective Active Control Strategy of Centralized New Energy under Asymmetric Voltage Sag 非对称电压暂降下集中式新能源多目标主动控制策略研究

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073306

Huipeng Li, Rui Fan, Lei Feng, Shifeng Zhang, Jun Zhao, Tengxin Wang, Shilin Li

{"title":"Research on Multi-objective Active Control Strategy of Centralized New Energy under Asymmetric Voltage Sag","authors":"Huipeng Li, Rui Fan, Lei Feng, Shifeng Zhang, Jun Zhao, Tengxin Wang, Shilin Li","doi":"10.1109/APET56294.2022.10073306","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073306","url":null,"abstract":"Under the asymmetric voltage sag, the centralized new energy faces problems such as lack of coordination of multiple control objectives and high complexity of control strategies, which will lead to disconnection in serious cases and affect the stable operation of the power grid. Thus, a multi-objective active control strategy for DG is proposed considering voltage sags. Firstly, the influence of grid impedance on voltage is fully considered, and the positive and negative sequence voltage supporting equation is established to realize flexible control of phase voltage. Secondly, several control targets under asymmetric voltage sags based on positive and negative sequence active power and reactive current are established. On this basis, the mutual restraint mechanism of multiple control objectives is analyzed deeply, and the control objectives are optimized according to the voltage sag scenarios, and the objective function and constraint conditions in different scenarios are constructed. Finally, ipopt optimization algorithm is used to realize multi-objective optimal control of grid-connected inverter under asymmetric voltage sag. The simulation is used to verify the effectiveness of the proposed method in different voltage sag scenarios.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124458091","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 of Equivalent Circuit Model of Concrete WPT System 混凝土WPT系统等效电路模型分析

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072506

Zhousen Wu, Mengmeng Chen, Xiaoyu Duan, Qiong Wang, Lihui Yan, Cancan Rong

引用次数: 1

Adaptive Grounding Distance Protection for Inverter-Interfaced Distributed Generation 逆变器接口分布式发电的自适应接地距离保护

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073441

Xiang Zeng, Minghao Wen, Kun Qian, Tao Jiang, Yaoyu Cheng

{"title":"Adaptive Grounding Distance Protection for Inverter-Interfaced Distributed Generation","authors":"Xiang Zeng, Minghao Wen, Kun Qian, Tao Jiang, Yaoyu Cheng","doi":"10.1109/APET56294.2022.10073441","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073441","url":null,"abstract":"Due to the weak fault current feedability and phase-controlled characteristics of the Inverter Interfaced Distributed Generator (IIDG), the distance protection of the system with IIDG injected may not operate correctly when the single-phase ground fault occurs through the fault resistance. In this paper, considering the characteristics of voltage controlled positive sequence current source of IIDG, the sequence network analysis and calculation of single-phase grounding fault in the system with IIDG injected are carried out. The output current of IIDG after the fault is calculated by the positive sequence voltage approximation value of the connection point, and the measured impedance expression determined by the fault location, fault resistance and electrical volume before the fault is obtained. Thus, operating impedance boundary of grounding distance protection can be adjusted adaptively. The protection scheme is adjusted adaptively using only the electrical parameters before the fault, the protection can adapt change of the output current of the IIDG after the fault and improve the immunity to fault resistance for the grounding distance protection of the system with IIDG injected. Simulation based on PSCAD/EMTDC vermes effectiveness of the proposed protection.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"227 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132072586","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 Method of Oil-Immersed Transformer Based on the Production Pattern of Free Gas and Dissolved Gas in Oil 基于油中游离气和溶解气产生规律的油浸式变压器故障诊断方法

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072891

Xiu Zhou, Tian Tian, Ningbo Liu, Jin Bai, Yan Luo, Ninghui He, Pengcheng Zhang, Jun Sun

{"title":"Fault Diagnosis Method of Oil-Immersed Transformer Based on the Production Pattern of Free Gas and Dissolved Gas in Oil","authors":"Xiu Zhou, Tian Tian, Ningbo Liu, Jin Bai, Yan Luo, Ninghui He, Pengcheng Zhang, Jun Sun","doi":"10.1109/APET56294.2022.10072891","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072891","url":null,"abstract":"Monitoring the operating state of oil immersed transformer by free gas is an effective means to prevent equipment from burning and explosion. However, there is no research on the production pattern of free gas under different fault conditions. In this paper, the production pattern of free gas under discharge fault and thermal fault is obtained through experiments, and the dissolved gas in oil is collected and analyzed after the test. It is found that under severe faults, most of the characteristic gases generated by the insulation system cracking will escape to the top of the oil tank and be collected, while the characteristic gases dissolved in the oil are less. The existing dissolved gas analysis method cannot diagnose the transformer operation state through the component content of free gas, and the concentration of dissolved gas in oil is low, so the dissolved gas analysis method ca not accurately diagnose the transformer fault type. And the production pattern of free gas varies greatly under different faults, by analyzing the component content of free gas and dissolved gas in oil, the fault type can be accurately diagnosed at the early stage of serious fault.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124010016","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

Multi-objective Optimal Configuration of Distributed Energy Storage in Distribution Network Considering Different User Characteristics 考虑不同用户特性的配电网分布式储能多目标优化配置

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073196

Kun Liang, Tianwen Zheng, Libo Jiang

{"title":"Multi-objective Optimal Configuration of Distributed Energy Storage in Distribution Network Considering Different User Characteristics","authors":"Kun Liang, Tianwen Zheng, Libo Jiang","doi":"10.1109/APET56294.2022.10073196","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073196","url":null,"abstract":"There is a number of important differences among different load types in the distribution network, which seriously affects the accuracy of the distributed energy storage configuration. Therefore, considering the load differences in the distribution network, a multi-objective optimal configuration method of distributed energy storage in the distribution network considering different user characteristics is proposed. Firstly, the differences among industrial, commercial, and residential loads and their influence on distributed energy storage configuration in the distribution network are analyzed. Secondly, a multi-objective model of maximizing the net benefit of the distributed energy storage and minimizing the voltage deviation in the distribution network is established. Then, an improved multi-objective particle swarm optimization algorithm is proposed, which obtains the optimal capacity and position of distributed energy storage. Finally, the validity of this method is verified by the simulation test of the improved IEEE33 distribution network system.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129622332","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

EMG Signal Analysis Using Sensor System and Edge Device for Wearable Applications 基于传感器系统和可穿戴设备的肌电信号分析

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072507

Yu Seok Han, Su Bin Jang, Eun Bin An, Hyunwoo Choi, Dong Yea Hwang

{"title":"EMG Signal Analysis Using Sensor System and Edge Device for Wearable Applications","authors":"Yu Seok Han, Su Bin Jang, Eun Bin An, Hyunwoo Choi, Dong Yea Hwang","doi":"10.1109/APET56294.2022.10072507","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072507","url":null,"abstract":"Recently, bio-signal processing analysis using artificial intelligence is attracting great attention. In the case of bio-signal processing, it is a very difficult signal to analyze because it has a lot of noise induced by the users’ movement or other bio-signals. Therefore, different results depending on the person making the diagnosis may be obtained. To solve this problem, artificial intelligence through learning algorithm based on big data can be used. With this technique, it becomes possible to analyze bio-signals more simply and accurately without the help of a diagnostician. However, the artificial intelligence systems themselves are not suitable for wearable applications. In this paper, a sensor system was developed to be suitable for wearable applications in consideration of user convenience, and an edge device was also developed to analyze bio-signals with artificial intelligence. The electromyogram (EMG) signal was measured through the sensor system, and the analysis was performed with an edge device using field programmable gate array (FPGA). Through this, bio-signal analysis can be performed more easily, accurately, and at a user’s desired moment.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127394869","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 of an Accident of Incorrect Action of Relay Protection Device Due to Failure of Phase Selection 一起继电保护装置选相失败误动作事故分析

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072441

Qidi Chen, AdiliBalaTi, Bin Li, Xing Wang, DaLin Cui

引用次数: 0

Network Partition Method for Reactive-voltage Control Considering Reactive Power Balance Based on Community Structure Theory 基于社区结构理论的考虑无功平衡的无功电压控制网络划分方法

2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073103

Qiulong Ni, Bolong Shi, Yishan Shi, W. Chang, Xianting Ren, R. Guo

引用次数: 0