{"title":"Power grid equipment operation status monitoring system based on Internet of Things technology","authors":"Zhanghuang Zhang, Jieyun Zheng, Zhuolin Chen","doi":"10.1117/12.2680429","DOIUrl":"https://doi.org/10.1117/12.2680429","url":null,"abstract":"Microgrid construction and the industrial Internet of Things will be an important part of future economic development and industrial restructuring. Based on the current development status of the field, this paper sorts out the actual needs of the system in order to solve the traditional power equipment management mode that is due to man-made errors and omissions. The system can complete the connection of power equipment, and compare the parameters collected by each sensor with the actual value. The acquisition error meets the actual needs. The power equipment monitoring and management platform’s functional modules, which include a communication service module, an operation module, a database module, a monitor module and a data transmission module, can be used normally. The working flow is complicated. The system not only realizes the management of power equipment but also monitors its state parameters. The simulation experiment tests the basic measurement function of intelligent power monitoring. The accuracy test meets the expected requirements, which can realize the intelligent monitoring of the power grid equipment parameters, and can be promoted in the power system with high practical effect.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"503 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116328239","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 the algorithm of 3D pose solving based on binocular vision","authors":"Jiaxin Wu, Han Ai, H. Zhang, Jianzhong Cao","doi":"10.1117/12.2680583","DOIUrl":"https://doi.org/10.1117/12.2680583","url":null,"abstract":"Due to the complex lighting environment in space, the surface coating material of the spacecraft is uneven and has strong reflection characteristics, resulting in the complex problem of extremely bright or extremely dark in the image under sunlight, and it is difficult to extract stable features. In addition, for the actual measurement system, the amount of data for image feature processing and image matching is large, which makes the speed of the key algorithm unable to meet the real-time nature of the application. Therefore, based on the above problems, this paper proposes a set of threedimensional measurement algorithms based on binocular vision, mainly has four parts, camera calibration, Image correction, stereo matching and pose solving. We use traditional image processing algorithm for satellite image, using M software for camera calibration, and the calibration results are further optimized and corrected, due to the requirements of real-time, based on ORB algorithm, the use of Fast algorithm for feature point extraction and descriptor calculation by Brief, and the polar constraint is fused for feature matching. Improve the robustness and real-time performance of the algorithm, and perform pose solving by rotating angle. Experiments show that the algorithm can quickly and accurately achieve three-dimensional pose measurement.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115256663","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":"Application of artificial intelligence technology in real-time electricity price forecasting: window-based XGBoost","authors":"Dongwei Li, Wei-Yang You, Xiunai Wang","doi":"10.1117/12.2680574","DOIUrl":"https://doi.org/10.1117/12.2680574","url":null,"abstract":"Building a new power system is an important measure taken by China to cope with climate change problems. Establishing a flexible and perfect electricity market and price mechanism is an important means to ensure the safe and stable operation of the power system. As one of the important electricity price mechanisms, the change in real-time electricity price (RTP) is a key factor in the operation of the electricity market, and each market participant can formulate a response strategy according to the RTP. However, the uncertain, stochastic, and fluctuant characteristics are definitely difficult problems for the RTP prediction. With the aim of solving this issue, this paper proposed a RTP prediction method based on a window-based XGBoost model. Through the input conversion of the proposed model, it can help to reduce the complexity and capture the autocorrelation effect of the RTP. The case study is conducted through the actual load data of a province in China and the superiority is proved by comparing with several state-of-art models. The result shows that the window-based XGBoost model applied in this paper can decrease the prediction error by 69.48%-95.67% and greatly enhance RTP's prediction performance.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114568242","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}
Yan Wang, Xun Li, Tong Fu, Mingyang Zhou, Zhengbang Kang, Mingxiao Guan, Anping He
{"title":"A method of customizing GasP with logical effort","authors":"Yan Wang, Xun Li, Tong Fu, Mingyang Zhou, Zhengbang Kang, Mingxiao Guan, Anping He","doi":"10.1117/12.2680431","DOIUrl":"https://doi.org/10.1117/12.2680431","url":null,"abstract":"The GasP circuit is a high-speed controller that has been used more often in the field of asynchronous circuits. However, in the conventional GasP design method, the matching process of its internal delay lacks the consideration of the circuit application environment. In view of this, this paper proposes three delay adjustment methods by combining the usage scenario of the circuit and the logical effort. The method first adjusts the pulse width of the digital circuit, the ability to drive the DFF and the maximum equivalent frequency of the circuit, then customizes the delay and drive of the GasP, and finally verifies the performance with a NoC built with the GasP. The experimental results show that the maximum equivalent frequency of GasP can reach 2.28GHz in 110nm CMOS process, which is about 10 times of the classical synchronous design.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115828530","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}
Jincan Li, Leping Sun, Chengliang Zhu, Dan Wang, Bingyao Li
{"title":"Cooperative optimization of power system based on demand response","authors":"Jincan Li, Leping Sun, Chengliang Zhu, Dan Wang, Bingyao Li","doi":"10.1117/12.2680113","DOIUrl":"https://doi.org/10.1117/12.2680113","url":null,"abstract":"In the power system, various energy sources such as cooling, heating, and electricity are coupled and complementary. As a multi-energy supply and demand balance method, power demand response can further improve the flexibility and economy of the system. In order to clarify the influence of demand response on the optimal operation mode of multi-energy cooperative system, this paper proposes an optimal operation model of multi-energy cooperative system based on market-elastic price demand response. Firstly, the main body of the multi-energy cooperative system is analyzed, the multi-energy coupling characteristics are studied based on the energy hub model, and a price-based demand response model based on market elasticity is constructed. Secondly, the optimal operation model aiming at the lowest daily operating cost of the multi-energy cooperative system is established. Finally, combined with the calculation and analysis of actual cases, it is verified that the adoption of price-based demand response measures can significantly improve the economy of the power multi-energy collaborative system.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116080135","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":"Measurement and modeling methods for broadband impedance characteristics of large-scale electrical equipment","authors":"Bowen Wan","doi":"10.1117/12.2680513","DOIUrl":"https://doi.org/10.1117/12.2680513","url":null,"abstract":"In order to build the broadband model of electrical equipment, it is necessary to measure the broadband impedance characteristics of the equipment. However, the large size of high-voltage electrical equipment requires long measurement leads to measure the broadband impedance characteristics. At present, there is a lack of effective and universal compensation measures, which leads to unacceptable measurement errors in high frequency band. In order to solve this problem, a method for measuring broadband impedance characteristics of large-scale electrical equipment is proposed. In this method, impedance analyzer is used as measuring equipment, and the coupling calculation model of the long leads over the earth is established by using the partial element equivalent circuit (PEEC). The two-port network parameters of the long leads measurement loop are obtained, and the network parameter matrix is used to compensate the influence of the measurement results by the long leads. A measurement experiment is carried out in the laboratory, and the accuracy of the measurement method is proved by comparing the results measured directly by short leads with those measured by compensated long leads. The measurement method can accurately measure the broadband impedance characteristics of large-scale electrical equipment in the range of megahertz.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114844783","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":"Substation outdoor instrumentation detection algorithm based on improved YOLOv5","authors":"Xiaoqiang Fan, Yong Jiang","doi":"10.1117/12.2680466","DOIUrl":"https://doi.org/10.1117/12.2680466","url":null,"abstract":"With the increasing popularity of substation inspection robots, the localization and detection of outdoor inspection pictures gradually becomes the focus and difficulty of research. For outdoor substation meters, in different weather conditions, for the current stage of detection algorithm model complexity is high, easy to the detection of the target caused by low recognition rate, is not conducive to the rapid deployment of practical applications and other problems, proposed an improved YOLOV5-based substation detection algorithm, the algorithm uses YOLOv5 + CBAM attention mechanism module to detect meter dials, for different weather conditions The algorithm uses YOLOv5+CBAM attention mechanism module to detect meter dials, which is of great significance to identify meter dials accurately and quickly under different weather conditions and further realize intelligent inspection of substations.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126099733","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":"Differential protection method for EHV transmission line based on current traveling wave prediction","authors":"Zhaohui Chenzh, Xiaobing Ding, Mingjun Xue, Hao Zhang","doi":"10.1117/12.2680594","DOIUrl":"https://doi.org/10.1117/12.2680594","url":null,"abstract":"At present, the EHV transmission system in China has entered a new stage of large-scale construction, which is different from the general EHV transmission lines. The distributed current in the EHV transmission lines has increased substantially. To realize the overall balance of long-distance transmission in the power grid, a differential protection method for EHV transmission lines based on current traveling wave prediction is proposed. The fault current traveling wave of the EHV transmission line is predicted. The fault current traveling wave section is distinguished, and different schemes are selected to realize the traveling wave differential protection for internal and external faults. The simulation results show that the proposed method is reliable and sensitive for the protection of UHV transmission lines, and has certain practical value for ensuring the stable operation of the smart grid.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125681290","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":"Fault location of flexible DC system based on BP neural network","authors":"Shuang Liu, Sihuan Wang","doi":"10.1117/12.2680124","DOIUrl":"https://doi.org/10.1117/12.2680124","url":null,"abstract":"As a bridge of the transmission system, flexible DC transmission line plays an important role. If a fault occurs, it will bring serious consequences to the entire transmission system. It is very important to study the fault location of the flexible DC transmission line. According to the system structure of flexible DC transmission line, the mathematical model, operation mode and control strategy of MMC are analyzed. According to the characteristics of transmission line with bipolar short circuit fault, a fault location method based on BP neural network is proposed. Combined with PSCAD/EMTDC, a twoterminal flexible DC transmission system is built, and the fault data of the flexible DC transmission line is obtained by simulation. After preprocessing the data, a sample set is constructed. The neural network analysis uses the two-terminal fault location method, and finally a high-precision fault location model is obtained, which verifies the accuracy and effectiveness of the location method proposed in this paper.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"336 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116466298","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":"Trajectory prediction combined with FairMOT for multi-object tracking","authors":"Bao Liu, Zhi-ming Wang, Wenyan Chen, Jiaxuan Wang","doi":"10.1117/12.2680105","DOIUrl":"https://doi.org/10.1117/12.2680105","url":null,"abstract":"Aiming at the problems of ID switching and tracking performance degradation caused by frequent occlusion and similar appearance of the tracked objects in dense scenes, a multi-object tracking method named TPFairMOT based on trajectory prediction and FairMOT is proposed in this paper. In the trajectory prediction branch, the object position of the future frame is predicted by using the object bounding box of the past frame and the velocity information learning network parameters, which overcomes the prediction failure caused by the uncertain motion state after the object is occluded in the tracking process. Secondly, the joint learning framework is used to combine the trajectory prediction branch with the detection and re-identification branch, and the tracking error caused by the high similarity between multiple objects in the tracking process is solved by integrating the appearance features and motion features of the tracked objects. Finally, MOTChallenge benchmarks (IDF1, IDs, MOTA, MT, and ML) are introduced to evaluate TPFairMOT, and different trajectory prediction strategies (FairMOT_KF and TPFairMOT_RNN) are used on FairMOT and TPFairMOT for comparative analysis. It is proved that the accuracy and ID switching times of trajectory prediction in this paper are better than other strategies. In addition, TPFairMOT, TPFairMOT_RNN, and FairMOT were compared on the public data sets MOT16, MOT17, and MOT20. The results show that TPFairMOT reduces the number of ID switching when the object is occluded, maintains the long-term validity of the identity information, and demonstrate good anti-occlusion performance.","PeriodicalId":201466,"journal":{"name":"Symposium on Advances in Electrical, Electronics and Computer Engineering","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116591256","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}