{"title":"Fast Pooling Based Multi-Scale Graph Neural Network and Its Application in Electric Power System","authors":"Zhenyuan Ma, Yuanpeng Tan, Zhijian Li, Huifang Xu, Liqing Liu, Kejia He","doi":"10.1109/AEEES54426.2022.9759560","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759560","url":null,"abstract":"With the development of power system intelligence, data in the electric power system has shown high complexity and uncertainty. For this reason, the knowledge graph (KG) has been applied in various applications in the power grid. By combining with machine learning, deep learning, and other graph computing technologies, the knowledge graph can effectively find out the useful information in the data, and use the existing data information to optimize the business process and help in decision-making. However, the knowledge graph in the electric power system has multiple nodes, heterogeneous edges, and complex structures, and the applications on the knowledge graph are shallow. The traditional graph neural network models do not consider much on the topological structure of input graphs, and thus the problems of low efficiency and high complexity come out. In order to solve the problems mentioned above, we proposed a multi-scale graph neural network with fast pooling in this paper. This model could improve the computing efficiency through the fast calculation of the pooling layer, and prevent the decrease of the test accuracy by introducing a multi-scale network structure. Also, the model could adapt to different sizes of input graphs, where the pooling layer gave a fixed size of output regardless of the input size. According to the experimental results on the popular benchmark dataset PROTEINS and the self-built dataset CEPRI-Transmission, the proposed model outperforms baseline models when considering both accuracy and efficiency.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121202552","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}
Xu Xin, Z. Yan, Hao Yueying, Jiang Yulei, Geng Mingzhi
{"title":"Research of Container Security Reinforcement Multi-Service APP Deployment for New Power System on Substation","authors":"Xu Xin, Z. Yan, Hao Yueying, Jiang Yulei, Geng Mingzhi","doi":"10.1109/AEEES54426.2022.9759718","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759718","url":null,"abstract":"In order to adapt to the scene of multi business coexistence in the new power system and support the integrated deployment of various business functions conveniently, the substation control system needs to adopt the open “platform & app” mode. The problems of fuzzy security boundary caused by the integration and deployment of different functional apps by lack of protection measures, different operating environment and APP isolation difficulties. This paper proposes a general call policy restriction method of domestic operating system based on Docker container, which aims to provide a practical security protection reinforcement scheme for any container.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127123949","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}
Zhang Menglu, Wang Jiatong, He Chuan, Xie Keyu, Zhang Xinyuan, Lv Xiangmei
{"title":"Multi-energy Complementary Clean Energy Microgrid Planning","authors":"Zhang Menglu, Wang Jiatong, He Chuan, Xie Keyu, Zhang Xinyuan, Lv Xiangmei","doi":"10.1109/AEEES54426.2022.9759578","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759578","url":null,"abstract":"This paper proposes energy planning at the microgrid level from the perspective of distributed energy systems. At the same time, combined with the background of the energy Internet, it studies the optimal configuration method of hybrid energy storage systems that promote large-scale new energy integration and consumption. Optimize the economy and power supply reliability as the goal, and establish a multi-energy complementary clean energy microgrid planning model. Consider equipment investment and construction operating status constraints, various energy output constraints, microgrid load constraints, main network exchange power constraints, and new energy share constraints. To determine the type and capacity of distributed power sources in the microgrid.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125704955","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}
H. Yao, H. Mu, Haoxiang Zhao, Xuan Li, Daning Zhang, Guanjun Zhang
{"title":"Evaluation Method of Oil-paper Insulation Bushing Damp Type Based on Polarity Reversal","authors":"H. Yao, H. Mu, Haoxiang Zhao, Xuan Li, Daning Zhang, Guanjun Zhang","doi":"10.1109/AEEES54426.2022.9759721","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759721","url":null,"abstract":"Oil-paper insulation bushing has been widely used in power system due to its good electrical and mechanical properties. Moisture is the most important factor affecting the safe and stable operation of the bushing. The moisture in the bushing mainly comes from the internal capacitor core and the end screen. In order to determine the initial damp location of the oil-paper bushing, the simulation models of internal damp and external damp bushing were constructed, and the moisture content was determined. On this basis, the oil-paper insulation samples with internal and external dampness were prepared according to the simulation data, and the polarization and depolarization current (PDC) test curves under different voltages and the integral values in the time direction were obtained. The results show that the polarization current curves and the depolarization current curves of the bushing under the test voltage of 200V, 400V, 600V and 800V are higher than the corresponding curves under the external damp condition; The integral value of PDC curve is greater than 3.5×10−7 when the bushing is damp outside and less than 3.2 ×10−7 when the bushing is damp inside, which can be used as a criterion to distinguish the initial damp position of the bushing.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127483818","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}
{"title":"Power Quality Management Strategy for High-Speed Railway Traction Power Supply System","authors":"Yongbin Shi, Teng Li","doi":"10.1109/AEEES54426.2022.9759561","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759561","url":null,"abstract":"Affected by the single-phase power supply mode of electric railway and properties of the locomotive load, power quality problems such as high amount of harmonics and negative-sequence components exist in the traction system. To improve the power quality in the traction system, this paper proposed a power quality management scheme based on railway power conditioner and the passive filter. Firstly, topology of traditional power quality management device and railway power conditioner are analyzed. Then, dynamic compensation principle of railway power conditioner was analyzed and a improved control strategy of railway power conditioner was designed. Finally, through building a simulation, compare the treatment effect of traditional power quality management devices and railway power conditioner in terms of current harmonics and negative sequence on three-phase side. Simulation results show that improved control strategy based on railway power conditioner is better to solve negative sequence and harmonic issues in the traction power supply system.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129039919","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}
{"title":"Zero-Mode Current Distribution Analysis in Neutral Ungrounded Distribution Systems with Distributed Photovoltaic Generators under SPG Faults","authors":"Jinrui Tang, Wanying Qi, Chen Yang, Zhenhai Li","doi":"10.1109/AEEES54426.2022.9759690","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759690","url":null,"abstract":"The fault current is determined by the zero-sequence parameters in neural ungrounded distribution systems (NUDSs) when a single phase-to-ground (SPG) fault occurred. Hence most traditional fault location methods are proposed and realized based on the zero-mode currents along the faulty distribution line. Nowadays, high penetration of distribution generators (DGs) exists in NUDGs and the zero-mode currents would be influenced by these grid-connected inverters. In this paper, the zero-mode currents located at the upstream side and the downstream side of the fault point are analyzed and compared in NUDSs with distributed photovoltaic generators under SPG faults. The equivalent composite sequence network diagram of NUDSs with SPG faults are constructed, and the control strategy of grid-connected inverter is analyzed. The derived zero-mode currents during SPG faults would be verified in the simulation both in the time domain and frequency domain. The results show that the high-frequency components of zero-mode currents are different at upstream side and downstream side of the fault point, while the high-frequency components of zero-mode currents are the same at the same side of the fault point.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133604911","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}
{"title":"Study on Transient Control Technology of Doubly-Fed Wind Turbine Connected to VSC-HVDC","authors":"Yanqiu Bi, Xueqi Wang, Yan Li, Dahai Zhang","doi":"10.1109/AEEES54426.2022.9759576","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759576","url":null,"abstract":"When large-scale wind power island is connected to VSC-HVDC power grid, the interdependence between wind turbine and VSC-HVDC power grid will be closer. Especially in the fault process, the interaction between wind turbine and VSC-HVDC power grid is more prominent, which makes the fault crossing of large wind power isolated islands connected to VSC-HVDC power grid face many new problems. Therefore, it is necessary to study the fault response characteristics of wind power connect to VSC-HVDC power grid and the fault ride through scheme of VSC-HVDC power grid and wind power joint system. When large-scale wind power is connected to the VSC-HVDC power grid and the VSC-HVDC mode is used for long-distance transmission, the operation characteristics of wind power and VSC-HVDC power grid will affect each other. The adaptability of wind power connected to the VSC-HVDC power grid will become an important problem affecting the operation of the power grid. Especially when the VSC-HVDC power grid fails, the response characteristics of the wind turbine, the interaction between VSC-HVDC power grid and wind power in the event of power grid failure, and how to realize fault ride through together. The focus of study should be to clarify the fault characteristics and interaction between wind power and VSC-HVDC power grid, realizing the joint fault ride through, and deepen the understanding of the interaction between wind power and power electronic controller in case of fault of VSC-HVDC power grid. Finally, to ensure the safe and stable operation of wind power sent through VSC-HVDC power grid, it is important to give full play to the flexible control of VSC-HVDC power grid, so as to work without synchronous power support.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122209759","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}
Yao Lu, Zhibin Qiu, C. Liao, Tonghongfei Li, Zijian Wu, Yong Hu
{"title":"The Application of High Frequency and Ultra High Frequency Partial Discharge Detection to Gas Insulated Switchgear","authors":"Yao Lu, Zhibin Qiu, C. Liao, Tonghongfei Li, Zijian Wu, Yong Hu","doi":"10.1109/AEEES54426.2022.9759830","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759830","url":null,"abstract":"Partial discharge (PD) charged detection is one of the important means to determine the internal insulation condition of gas insulated switchgear (GIS) equipment in extra high voltage (EHV) substations. Through PD charged detection, equipment defects can be detected and warned in advance to avoid further development of PD leading to equipment and grid failure. This paper introduces a GIS arrester PD defect found by applying GIS online monitoring system, using high-frequency (HF) and ultra-high-frequency (UHF) methods to discover abnormal signals of GIS equipment, and tracing and analyzing the abnormal signals. Based on the traditional discharge type identification technology, a deep learning-based PD type identification technology is proposed. The PD type is identified using HF and UHF mapping features, and the location of PD is precisely located using sensor time delay characteristics. Finally, the disassembly analysis of GIS equipment verifies the effectiveness of the GIS online monitoring system, while avoiding the further development of PD leading to serious accidents of unscheduled bus outages. This paper also provides some reference and experience on GIS charged detection as well as operation and maintenance.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116857360","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}
Li Guangdi, Xu Guoyi, Zhou Bowen, Huai Jinpeng, Zhao Ying
{"title":"Optimal Operation Strategy of Multi-energy System Considering Energy Supply for Waste Treatment","authors":"Li Guangdi, Xu Guoyi, Zhou Bowen, Huai Jinpeng, Zhao Ying","doi":"10.1109/AEEES54426.2022.9759729","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759729","url":null,"abstract":"Given the serious energy waste of the multi-energy system and the low absorption capacity of renewable energy, this paper considers the characteristics of waste energy supply and simultaneously optimizes the operation of the multi-energy system. Firstly, the key unit models in the system such as the waste energy supply model are built. Then, opportunity constraints are used to describe the uncertainty of load and renewable energy output, and a multi-energy system optimization strategy that takes into account the energy supply characteristics of waste treatment facilities and the synergy of renewable energy is proposed. Finally, based on the operating data of a large-scale multi-energy system and waste treatment facility, a simulation model for joint optimization operation of a multi-energy system considering the coordination of waste treatment energy supply and renewable energy is established. Simulation results show the multi-energy system joint optimization model proposed in this paper can effectively coordinate the energy supply of waste treatment facilities and the fluctuation of renewable energy. It satisfies the system's various load requirements and wastes disposal requirements effectively improving the on-site consumption of clean energy and can coordinate system economy and energy utilization efficiency.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"58 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132434343","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}
X. Zou, H. Mu, Haotian Zhang, Lan-Qing Qu, Guanjun Zhang
{"title":"A Cable Breakage Defect Localization and Assessment Technique via Time-Frequency Domain Reflectometry with Gaussian Window","authors":"X. Zou, H. Mu, Haotian Zhang, Lan-Qing Qu, Guanjun Zhang","doi":"10.1109/AEEES54426.2022.9759740","DOIUrl":"https://doi.org/10.1109/AEEES54426.2022.9759740","url":null,"abstract":"In electricity transmission system, cables are of great significance because of their electrical and mechanical properties. Nevertheless, negative factors such as local breakage defects caused by improper installation may threaten the security of the power system. To avoid serious accidents, the localization and assessment of breakage defect is needed. In this paper, the pseudo Wigner- Ville distribution with Gaussian window is proposed, which can greatly reduce the values of the cross-terms caused by conventional Wigner- Ville distribution. Besides, the numerator of the cross-correlation function between the incident signal and the reflected signal is utilized to assess the degree of the breakage. In experiments, the breakage defects are all located accurately with error rates less than 0.5 % of the whole cable length, and the peak value of the assessment curve at the breakage becomes larger with increasing degree of damage.","PeriodicalId":252797,"journal":{"name":"2022 4th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133094399","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}