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Reduced-order Modeling of Active Rectifiers Under Different Droop Control Strategies 不同下垂控制策略下有源整流器的降阶建模
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072995
Yungui Zhang, Jun Wang, Jing Wang, Wei Fu
{"title":"Reduced-order Modeling of Active Rectifiers Under Different Droop Control Strategies","authors":"Yungui Zhang, Jun Wang, Jing Wang, Wei Fu","doi":"10.1109/APET56294.2022.10072995","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072995","url":null,"abstract":"In dc microgrids, power sharing performance may not be identical among different droop strategies when cable impedance is not negligible. Furthermore, they have an effect on the system stability especially in presence of constant power loads. The corresponding reduced-order models are developed and their validity is confirmed by comparing against the full-order model. Converter dynamics is taken into account and its effect on small signal stability is discussed. Nyquist criterion is applied to evaluate the stability for proposed droop methods. Furthermore, the influence of power sharing ratio to system stability is also discussed. The results obtained by analysis are validated by detailed simulation studies in MATLAB/Simulink.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"21 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":"114834061","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
The Degradation Mechanism and Similar Characterization for IGBT IGBT的降解机理及相似表征
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072508
Guoqing Xu, Lingfeng Shao, Xiaoyan Xu, An Xiang
{"title":"The Degradation Mechanism and Similar Characterization for IGBT","authors":"Guoqing Xu, Lingfeng Shao, Xiaoyan Xu, An Xiang","doi":"10.1109/APET56294.2022.10072508","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072508","url":null,"abstract":"Insulated-gate bipolar transistors (IGBT) are widely used in power electronic systems. The reliability of their operation is very important for social life. The detection of key Degradation characteristic parameters is an important technical basis to realize the fault pre-diagnosis of power electronic systems, which is of great significance to improve the stability of power electronic systems. In this paper, various degradation types of power electronic devices are firstly introduced, and the mechanisms of degradation are discussed in detail. Secondly, the feasibility of degradation characterization based on key characteristic parameters (voltage rise time) is studied. It is shown that the evolution of each degradation can be represented by a key characteristic parameter (voltage rise time), and ultimately by a similar junction temperature shift. Finally, the development prospects of multiple degradation pre-diagnosis based on key parameters are prospected.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"50 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":"117289735","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
Method for Consumer-transformer Relationship Identification Based on Diverse data 基于多元数据的用户-变压器关系识别方法
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073359
Yajie Chen, Xuan Qi, Hua Gu, Chengze Li, Xiu Yang, Jiafu Jiang
{"title":"Method for Consumer-transformer Relationship Identification Based on Diverse data","authors":"Yajie Chen, Xuan Qi, Hua Gu, Chengze Li, Xiu Yang, Jiafu Jiang","doi":"10.1109/APET56294.2022.10073359","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073359","url":null,"abstract":"This paper proposes a method for identifying consumer-transformer relationships based on voltage fluctuation feature clustering and power summation relationships. First, the voltage fluctuation characteristics of the distribution station area are analyzed, the set of feature parameters reflecting the global and local characteristics of voltage fluctuation is defined, and its calculation method is given. Then, the multi-dimensional fluctuation parameters of the neighboring substation voltages and their customer voltages are extracted and the t-distributed stochastic neighbor embedding (t-SNE) algorithm is used to reduce the dimensionality of the high-dimensional voltage fluctuation features. Finally, based on the summation relationship between the virtual user power data and the concentrator, the least-squares method is used for pairing to identify the household-variable relationship and the phase of users in the distribution network. Compared with the traditional topology identification method which directly uses voltage data for clustering, the proposed method has a higher identification accuracy and solves the problem that the traditional method cannot correctly identify when the voltages of different station areas are close to each other.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"8 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":"124971786","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
Hybrid Deep Network Based Multi-Source Sensing Data Fusion for FDIA Detection in Smart Grid 基于混合深度网络的智能电网FDIA检测多源传感数据融合
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072807
Yi Wu, Y. Sheng, Naiwang Guo, Fengyong Li, Yingjie Tian, Xiangjing Su
{"title":"Hybrid Deep Network Based Multi-Source Sensing Data Fusion for FDIA Detection in Smart Grid","authors":"Yi Wu, Y. Sheng, Naiwang Guo, Fengyong Li, Yingjie Tian, Xiangjing Su","doi":"10.1109/APET56294.2022.10072807","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072807","url":null,"abstract":"The false data injection attack (FDIA) can cause the unstable operation of the power grid by injecting false data into the power grid, which brings serious challenges to the modern new power system. However, diverse data redundancy and inconsistent temporal in the frequent interactive data of power sensors significantly improves the difficulty of detecting false data injection attacks. To solve this aforementioned problem, we propose a multi-sensing data fusion model based on hybrid deep learning network. Firstly, temporal alignment technique is employed to preprocess the original multi-source perceived data in time dimension. Subsequently, a long short-term memory based convolution neural network (CNN-LSTM) is designed to extract spatial and temporal feature from different sensor data, which can effectively represent the spatial and temporal distribution of multi-source data in the same temporal. Furthermore, through sequential convolution operation, an independent LSTM neural network is introduced to fuse multi-source features by further extracting deep temporal information, which can efficiently remove the redundancy in multi-sensor heterogeneous data and be used to FDIA attack detection in cyber physical systems. Extensive experiments demonstrate that our fusion method can improve data effectiveness with respect to original multi-source sensing data, and perform a superior detection performance for FDIA attacks in power systems.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"24 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":"128222771","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 Domestic and International Distributed Photovoltaic Grid-connected Standards 国内外分布式光伏并网标准研究
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073028
Shen Bing, Suck-Yul Yun, S. Shanshan, L. Jinsong, Wang Haojing, Yang Xiu, Tang Qianyao
{"title":"Research on Domestic and International Distributed Photovoltaic Grid-connected Standards","authors":"Shen Bing, Suck-Yul Yun, S. Shanshan, L. Jinsong, Wang Haojing, Yang Xiu, Tang Qianyao","doi":"10.1109/APET56294.2022.10073028","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073028","url":null,"abstract":"Recently, in order to cope with the issues of growing power load and energy shortage, distributed resources represented by photovoltaic, wind power and bioenergy have gradually been widely connected to the power distribution network. Among them, the rapid growth of distributed photovoltaics promotes the development of grid-connected standards of distributed photovoltaics. In this paper, main existing grid-connected standards for distributed photovoltaic in China and abroad are introduced. Then, the representative grid-connected standards of distributed resources in North America, Europe and China are selected and compared in terms of active power control and frequency response, reactive power control and voltage regulation. After that, main differences of the standards are pointed out. Finally, the development trend of standards for grid-connection of distributed resources are analyzed with practical suggestions provided.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"61 33 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":"130464468","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
Index System Based on Fault Tree Correction Weight for DC Charging Piles 基于故障树校正权的直流充电桩指标体系
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072587
Lin Sang, Xuling Li, Xianjing Tong, Wei Zhang, Jiande Ye
{"title":"Index System Based on Fault Tree Correction Weight for DC Charging Piles","authors":"Lin Sang, Xuling Li, Xianjing Tong, Wei Zhang, Jiande Ye","doi":"10.1109/APET56294.2022.10072587","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072587","url":null,"abstract":"In order to evaluate charging piles rapidly and accurately, a DC charging pile evaluation index system based on fault tree correction index weight is proposed. Firstly, the key indices of DC charging piles are sorted out and formed into an index system, and the index weights are determined by using interval hierarchy analysis. Then, a fault tree is established based on the historical fault information of DC charging piles in actual use, and the fault weights are determined by the gray correlation method. After using the fault weights to amend the original index weights, the size and ranking of the weights are changed. The indices with high failure probability are more critical in charging pile testing, which results in more weight for those indices. Meanwhile, the indices with smaller weight are further reduced according to the weight ranking. Finally, a new index system is formed, which realizes the rapid and accurate evaluation of DC charging piles.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"84 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":"128766211","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 Novel Method to Measure Lightning-Current-Induced Impact Force on Laminated CFRP Composites 一种测量CFRP复合材料雷电流冲击强度的新方法
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072653
Yafeng Li, Shu Li, Jinru Sun, Xiangyu Tian, X. Yao, Jingliang Chen
{"title":"A Novel Method to Measure Lightning-Current-Induced Impact Force on Laminated CFRP Composites","authors":"Yafeng Li, Shu Li, Jinru Sun, Xiangyu Tian, X. Yao, Jingliang Chen","doi":"10.1109/APET56294.2022.10072653","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072653","url":null,"abstract":"In order to evaluate the mechanical effect of lightning strike on the carbon fiber reinforced polymer (CFRP) laminates, a novel measuring device that takes advantage of the polyvinylidene fluoride (PVDF) piezoelectric sensor was established. It was verified that this device could measure the dynamic impact force validly in the strong electromagnetic environment during a lightning strike. The influence of current amplitude on CFRP damage behavior was explored. The experimental results showed that the maximum impact force increased with the augment of current amplitude. Increasing the lightning current exacerbated the damage degree of CFRP laminates and made the mechanical damage mode more complicated. The obtained data provide scientific support for the analysis of lightning damage behavior of CFRP composites. Moreover, it provided a theoretical basis for the development and design of lightning protection solutions for aircraft.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"23 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":"123399786","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 Phase Switch Device Placement Scheme for Low Voltage Distribution Network Considering Load and Renewable Energy Uncertainty 考虑负荷和可再生能源不确定性的低压配电网开关装置最优配置方案
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072625
Feng Liang, Jianfu Ni, Hao Zhu, Qing-Yu Xiong, Zhuofei Yu
{"title":"Optimal Phase Switch Device Placement Scheme for Low Voltage Distribution Network Considering Load and Renewable Energy Uncertainty","authors":"Feng Liang, Jianfu Ni, Hao Zhu, Qing-Yu Xiong, Zhuofei Yu","doi":"10.1109/APET56294.2022.10072625","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072625","url":null,"abstract":"With the increase of single-phase devices and loads in the power system, the three-phase unbalance problem of the low voltage distribution network is more serious. Besides, the intermittency and volatility of renewable energy increase system uncertainty. To address this issue, this paper proposes a phase switch device placement model for the low voltage distribution network with renewable energy sources. The proposed model combines network reconfiguration and phase switch device to mitigate the three-phase unbalance. Considering the uncertainty of loads and renewable energy output, the proposed model is formulated as a mixed integer linear programming model based on stochastic programming, which can be solved by general commercial solvers and find the global optimal solution. The effectiveness of the proposed model is validated on the IEEE 13 node test feeder. The results show that the proposed model can significantly mitigate the three-phase unbalance of low voltage distribution network.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"14 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":"131120128","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
Low Carbon Optimal Dispatching of Microgrid Considering Demand Response 考虑需求响应的微电网低碳优化调度
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10072596
Yongsheng Zhu, Zefei Hu, Junlin Yang, Qunfang Chang, Zhiyong Hu, Caijing Nie
{"title":"Low Carbon Optimal Dispatching of Microgrid Considering Demand Response","authors":"Yongsheng Zhu, Zefei Hu, Junlin Yang, Qunfang Chang, Zhiyong Hu, Caijing Nie","doi":"10.1109/APET56294.2022.10072596","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072596","url":null,"abstract":"With the increasing energy demand and environmental pollution, reducing carbon emissions and developing renewable energy are the key to solve low carbon economy operation of microgrid. To solve the above problems, an optimal dispatching model of microgrid based on carbon market and green certificate trade mechanism is proposed under the constraint of demand response. Firstly, considering the reward and penalty ladder carbon trading mechanism, a microgrid framework based on green certificate market is established, which increases the proportion of green electricity and reduces carbon emissions. Then, mobilizing the peak regulating potential, the load demand response strategy is proposed, which guides reasonably the users’ energy consumption and improves the system security. Finally, considering the advantages of low carbon characteristics, an optimal dispatching model of microgrid is established to minimize the comprehensive costs. The results of case analysis show that carbon emissions and the total cost of system is reduced by 2.81% and 1.73%, which verifies the feasibility and practicability of the proposed model.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"125 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":"133888998","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
Wide-area Backup Protection for Substation DC Voltage Loss 变电站直流电压损耗的广域后备保护
2022 Asia Power and Electrical Technology Conference (APET) Pub Date : 2022-11-11 DOI: 10.1109/APET56294.2022.10073092
Zhile Xu, Minghao Wen, Zeya Fang
{"title":"Wide-area Backup Protection for Substation DC Voltage Loss","authors":"Zhile Xu, Minghao Wen, Zeya Fang","doi":"10.1109/APET56294.2022.10073092","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073092","url":null,"abstract":"In order to solve a series of problems such as protection refuses to operate and power system stability declines when the DC voltage of the substation is lost, this paper explains the huge harm caused by the loss of DC power in substations firstly, introduces the centralized wide-area protection system of substations and the DC system structure of 110kV substations commonly used in practical engineering. In view of the situation that the protection device and communication equipment lose power due to the loss of DC voltage in the substation, a wide-area backup protection method using channel alarm information to deal with DC voltage loss in substations is proposed. Then, based on the case analysis, the PSCAD/EMTDC simulation platform is used to build a power system model for simulation verification. The results show that the proposed wide-area backup protection method can operate effectively when the substation DC voltage is lost, and improve the ability of the power system to deal with special conditions.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"55 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113935826","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
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