2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)最新文献

{"title":"Research on Dynamic Characteristics of UHV DC Bypass Switch Drive System","authors":"Yingqian Du, Yongqi Yao, Zhijun Wang, Yingjie Sun, Mingqin Guo, Yapei Liu, Hao Zhang","doi":"10.1109/AEEES51875.2021.9403204","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403204","url":null,"abstract":"In this paper, the method of numerical simulation is used to establish the impact dynamics simulation model of the UHV DC bypass switch, and the dynamic characteristics of the transmission system are studied. The dynamic characteristics of the transmission system of the three schemes are calculated, and the main structural parameters and dynamic characteristic indexes of the three structures are compared, and the best structural scheme is obtained.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116561989","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":"Research on Multi-Parameter Data Monitoring System of Distribution Station Based on Edge Computing","authors":"Shizhan Song, Sen Li, Hui Gao, Jingyu Sun, Zhenshu Wang, Yongzhi Yan","doi":"10.1109/AEEES51875.2021.9403026","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403026","url":null,"abstract":"With the continuous improvement of power grid intelligence, it is necessary to build intelligent and information-based distribution network. This paper presents an intelligent monitoring system of distribution network based on power Internet of things and edge computing. Based on the cloud side end architecture, the real-time operation data and information of the distribution station are fully collected and the state is fully perceived by the intelligent terminal equipment. Zigbee, 485 and other communication methods are used to upload to the edge computing layer to realize the local computing and terminal intelligence, early warning and control of the power grid operation risk, and auxiliary decision-making of the power grid business, so as to ensure the security and stability of the power grid The data processing speed is improved and the business processing ability is enhanced.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125109119","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":"BPA based Selection Method for MMC Reactive Power Control Mode","authors":"Xiao Yu, Guangquan Bu, Shanshan Wang, Bing Zhao","doi":"10.1109/AEEES51875.2021.9403167","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403167","url":null,"abstract":"Modular multilevel converter (MMC) usually adopt direct current control, which can be divided into inner loop current controller and outer loop power controller. The control modes of the outer loop power controller can be divided into active power control and reactive power control. When MMC is connected to AC system, it is necessary to select control mode and control setting values for MMC. This paper proposes a selection method of reactive power control on the basis of analyzing the output characteristics and the influence on AC grids of different control modes along with the reactive power demand of AC grids with different system strength, which is carried out on power system simulation program BPA. The method makes the voltage and reactive power flow regulation demand of AC grid match with MMC output reactive power and voltage. Finally, a simulation model is built on BPA to verify the effectiveness of the proposed method as well as an example of how to carry out this method.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125282176","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":"Improve the Dynamic Breakdown Voltage of SOI LDMOS Devices by Eliminating the Effect of Deep Depletion in Substrate","authors":"Yu Cai","doi":"10.1109/AEEES51875.2021.9403175","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403175","url":null,"abstract":"In order to improve the transient breakdown voltage (TrBV) characteristics of silicon-on-insulator (SOI) laterally-diffused metal-oxide semiconductor (LDMOS), a new device structure is proposes in the paper. A P+ layer is introduced under the buried oxide (BOX) layer of the device to suppress the deep depletion (DD) effect in the substrate. The simulation results show that when the P+ layer concentration is greater than 4×1016 cm-3, TrBV characteristics of the new device is similar to static breakdown voltage (StBV) characteristics without reducing the withstand voltage. Therefore, the design of the dynamic withstand voltage of the device is greatly simplified. When the device temperature is equal to 500 K, its lowest operating frequency can be lower than 50 Hz. This can fully meet the conventional applications of SOI LDMOS devices.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"20 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113960681","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 the Harmonic Amplification Influence of DC Inverter Substation With Cable Outgoing Line on the Receiving-end Power Grid","authors":"Xiaohong Geng, Guang Su, Weiguo Lu, Zaibao Xiong, Yu Gao, Xiaohong Bu, Han Yan, Shaofei Du","doi":"10.1109/AEEES51875.2021.9402975","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9402975","url":null,"abstract":"The harmonic problem caused by HVDC transmission has always been the focus of the research on harmonic amplification at the receiving-end power grid. The increase in the proportion of cable lines in the receiving-end power grid makes the harmonic problem of the grid more complicated. This paper puts forward the concept of cable rate, and derives the harmonic model of the transmission line that can accurately account for the cable rate. This model can better consider the two outgoing modes of DC inverter substations. Finally, the harmonic voltage transfer coefficient model of harmonic transmission from DC system to receiving-end power grid is established, detailed research and calculations are carried out based on this model. The research results show that the influence of the cable outgoing line at the DC inverter substation on the harmonic amplification problem of the receiving-end power grid is more complicated, which is related to the cable rate, harmonic frequency, parameters of transmission line, and the mode of outgoing line at the DC inverter substation. The research results in this paper have reference significance for the cable line reconstruction of receiving-end power grid in the future.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122725028","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":"Research on Diagnosis Device of Insulator Pollution Degree Based on BP Neural Network","authors":"Yunpeng Liu, Jiajun Yang, Yonglin Li, Shaotong Pei, Jiashuo Liu, Tingyu Lai","doi":"10.1109/AEEES51875.2021.9402998","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9402998","url":null,"abstract":"In order to realize the real-time diagnosis of local insulator pollution, a kind of local insulator pollution diagnosis device is designed based on BP (Back Propagation) neural network prediction and classification algorithm, which can communicate with domestic ultraviolet imager in real time. According to the obtained photoelectron number, apparent discharge, detection distance and gain from ultraviolet imager, the insulator pollution grade is evaluated by BP neural network algorithm. The research results lay a foundation for the practical engineering application of the local insulator pollution diagnosis device.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131151356","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":"Research on Testing Technology of Functional Reliability of Electric Energy Meter Basing on Weak Spot Detection","authors":"Jiaming Zhang, Rui Wang, Y. Cheng, J. Du, Feng Zhou, Shishun Tan","doi":"10.1109/AEEES51875.2021.9403184","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403184","url":null,"abstract":"As the most powerful and intelligent equipment in the field of energy consumption on the customer's side, electric energy meters has been applied far more exceeded the bound of traditional metering function, and assume the role of energy information processing center day by day. Therefore, engineering practice is raising its demand on electric meter's functional reliability. However, there is still no proven and reliable method and technology for rapid reliability testing. Aiming at solving this problem, this paper proposes a testing technology of functional reliability of electric energy meter basing on weak spot detection, which can significantly decrease testing period, improve the pertinence of testing and provide guidance and support for the installation and operation of electric energy meters.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"45 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127574307","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":"Permanent and Transient Fault Identification for 10 kV Distribution Network Using Wavelet Analysis and Support Vector Machine","authors":"Yang Liu, Lisheng Li, Kai Chen, Linli Zhang, Shidong Zhang","doi":"10.1109/AEEES51875.2021.9403018","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403018","url":null,"abstract":"Conventional automatic closing may reclose on a permanent fault and cause severe consequences without judging the fault type after a delay. It is proposed to use the fault recording data after the circuit breaker trips to identify the types of faults in real-time. If it is a transient fault, the switch will be closed; then the power supply will be restored. While it is identified to be a permanent fault, the switch will not be closed and wait for maintenance. In this paper, wavelet analysis is adopted to extract real-time features from the fault recording data, and then the support vector machine (SVM) model is used to identify permanent and transient faults, which can avoid blind automatic reclosing.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132349491","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":"Simulation and Analysis of DC Magnetic Bias in Zhejiang Power Grid","authors":"Ren Tang, Shanzhong Ju, Wei Chen, T. Zheng","doi":"10.1109/AEEES51875.2021.9403133","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403133","url":null,"abstract":"Nowadays, there are two high voltage direct current (HVDC) transmission lines to Zhejiang Province. When HVDC transmission system is operated in ground return status, it will bring about DC magnetic bias of transformers nearby, which is adverse to normal operation of Zhejiang power grid. In this paper, a comprehensive electromagnetic transient model based on PSCAD is built, which covers the whole Zhejiang power grid. The DC magnetic bias phenomenon caused by different HVDC transmission unipolar operation is simulated and analyzed. The results show that, the closer the substation is to the grounding pole, the worse the DC magnetic bias will be. Besides, the capacitive isolation device is adopted to suppress DC magnetic bias for comparison, and the results also verify the effectiveness of the capacitive isolation device.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134504957","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":"Key Technology and Engineering Application of Pre Decision System of Quasi Online Dispatching Control for Massive Power Grid Analysis: quasi online navigation system for power system operation","authors":"Xiong Haoqing, Huang Yanhao, Dai Fei, Fu Hongjun, Lv Ying, Wang Buhua, Hao Junjie, Liu Yi, Li Wenchen","doi":"10.1109/AEEES51875.2021.9403228","DOIUrl":"https://doi.org/10.1109/AEEES51875.2021.9403228","url":null,"abstract":"Based on the principles of (1) dispatching information system (OMS), (2) dispatching data acquisition and monitoring control system (SCADA), (3) wide area measurement system (WAMS) with multi data sources and quasi online time scale, under the existing pre-warning and pre-decision mechanism of Henan Electric Power Dispatching, this paper introduces the key technology and engineering application of quasi online dispatching control pre decision system for massive power grid analysis in Henan power grid. Based on the summary of scientific research and engineering research and development in recent five years, the concept and model of operation control quasi online navigation system for power system operation dispatching control strategy formulation system is proposed, which takes into account the historical state, current state and future state. Firstly, an open 4-layer architecture from data source processing to power grid early warning and pre decision-making process is proposed. Secondly, on this basis above, taking “the future state of the next week” as the core time scale, the technical route of short-term cycle analysis and operation control decision-making of three data sources, including OMS, SCADA and WAMS, is proposed, in which a pre decision-making system of quasi online dispatching control for Henan power grid is developed. The engineering application of the system, to a certain extent, reduces the workload of system operation analysts and power grid planners, and improves the level of power grid security control. The system transforms the “artificial intelligence” offline mode of making medium and long-term conservative operation rules into the quasi online medium and short-term fine operation rules mode of “artificial intelligence”, and promotes the transformation of scheduling early warning and pre-decision-making from “semi artificial and semi intelligent” scheduling mechanism to “intelligent” massive data, multi artificial intelligence algorithm, intelligent early warning and pre decision-making. Finally, the technical problems to be improved are pointed out.","PeriodicalId":356667,"journal":{"name":"2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"719 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133532935","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}