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2020 7th International Forum on Electrical Engineering and Automation (IFEEA)最新文献

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Research on Electric Energy Metering of Dianshigou Traction Substation 电石沟牵引变电站电能计量研究
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00102
Da'erhan, Xuebin Song, Mingtao Yang, Shuting Zhang, Fuqiang Tian
{"title":"Research on Electric Energy Metering of Dianshigou Traction Substation","authors":"Da'erhan, Xuebin Song, Mingtao Yang, Shuting Zhang, Fuqiang Tian","doi":"10.1109/IFEEA51475.2020.00102","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00102","url":null,"abstract":"The rapid development of electrified railways has brought many adverse effects on the power system. Power factor, harmonics and negative sequence are the root causes of electric energy metering problems caused by electrified railway loads. The power quality of Dianshigou traction substation is studied, and corresponding treatment measures are proposed based on the statistical results of actual measurement.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134024229","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
Application of GA-LSTM model in cable Joint temperature prediction GA-LSTM模型在电缆接头温度预测中的应用
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/ifeea51475.2020.00023
Zhaoting Li, Zhaomin Li, Zhibin Li, Yongchun Li
{"title":"Application of GA-LSTM model in cable Joint temperature prediction","authors":"Zhaoting Li, Zhaomin Li, Zhibin Li, Yongchun Li","doi":"10.1109/ifeea51475.2020.00023","DOIUrl":"https://doi.org/10.1109/ifeea51475.2020.00023","url":null,"abstract":"The safety of the power cable running system directly affects the safety and reliability of the power supply. Due to most of the cable fault occurred in the cable joint parts, it's necessary to improve the security of power cable running system. This paper shows an algorithm based on GA - LSTM to predict the cable joint temperature. That's genetic algorithm optimizes the network structure of LSTM model, gets the best LSTM prediction model, and uses the collected data set of cable joint temperature on the established model for training. The training results show that the GA-LSTM algorithm can get a more accurate temperature prediction value and less error than the LSTM network under the condition of large samples, and it has a good application for the prediction of cable temperature.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"82 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131472131","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: 2
Fault Diagnosis Method of Brushless Motor Inverter for Substation Inspection Robot 变电站巡检机器人无刷电机逆变器故障诊断方法
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00062
Xin Zhang, Qishen Lv, X. Dang, Shungui Liu
{"title":"Fault Diagnosis Method of Brushless Motor Inverter for Substation Inspection Robot","authors":"Xin Zhang, Qishen Lv, X. Dang, Shungui Liu","doi":"10.1109/IFEEA51475.2020.00062","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00062","url":null,"abstract":"The relationship between the open circuit fault and the three-phase current is summarized by analyzing the working state of the motor when the open circuit fault occurs in the power tube. An open circuit fault diagnosis method for power tube of brushless motor inverter is proposed for substation inspection robot. In this method, using the sampling values of the drive system Hall sensor and current sensor as raw data which are processed by the proposed fault diagnosis algorithm, then the fault diagnosis and location of single tube and multi-tube power tube are realized. Simulation test shows the power tube open circuit fault diagnosis method presented in this paper is suitable for fault diagnosis and location of power tube under different rotating speed and load of robot joint motor, it is not affected by system open loop, close loop or PWM modulation strategy. It does not need to increase hardware cost, it is convenient and reliable, and it is not affected by the change of working condition, can effectively realize the open circuit fault diagnosis of power tube in brushless motor inverter for substation inspection robot.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133248245","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
Modal Parameter Identification of Mechanical System Based on EMD Method 基于EMD方法的机械系统模态参数辨识
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00116
Xiaohang Liu, Weina Liu, G. Shi
{"title":"Modal Parameter Identification of Mechanical System Based on EMD Method","authors":"Xiaohang Liu, Weina Liu, G. Shi","doi":"10.1109/IFEEA51475.2020.00116","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00116","url":null,"abstract":"The vibration signal of the mechanical system contains a wealth of status information, which has practical significance that cannot be ignored. Aiming at the problem of modal parameter identification of mechanical system, a modal parameter identification method based on empirical mode decomposition (EMD) is proposed. This method firstly decomposes the mechanical system under excitation vibration by EMD and then determines the intrinsic mode function(IMF) and correlation corresponding to each mode of the system, and performs Hilbert transform on each IMF to obtain the instantaneous frequency. Meanwhile, the method is applied to the residual stress detection of large-scale welded components, and good results are obtained.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127245845","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 Calibration Method and Effect Evaluation of Rocket Sled Track Profile Irregularity 火箭车轨道轮廓不均匀度标定方法及效果评价研究
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00049
Hui Li, H. Yan, B. Hu, Meng Yang
{"title":"Research on Calibration Method and Effect Evaluation of Rocket Sled Track Profile Irregularity","authors":"Hui Li, H. Yan, B. Hu, Meng Yang","doi":"10.1109/IFEEA51475.2020.00049","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00049","url":null,"abstract":"The rocket sled test is a ground flight test in which the rocket sled glides along a dedicated track at high speed. The track profile irregularity has a great influence on the vibration speed and acceleration of the rocket sled. This paper proposes a method for calibration the track profile irregularity based on the rocket sled test track of Test and Measuring Academy of Norinco Group. Through theoretical calculation and finite element analysis, the vibration value of the rocket sled when sliding on the track with calibrated and on the track without calibrated is compared and the calibration method is evaluated. The results show that the calibration method of rocket sled track profile irregularity can significantly improve the accuracy of track and reduce the vibration of rocket sled.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115939725","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
Prediction Method of Dissolved Gas Concentration in Transformer Oil Based on LSTSVR Model 基于LSTSVR模型的变压器油中溶解气体浓度预测方法
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00014
Xu Qiang-chao, Liulin Yang, Yang Tingfang, L. Zhiyong, Li Wei
{"title":"Prediction Method of Dissolved Gas Concentration in Transformer Oil Based on LSTSVR Model","authors":"Xu Qiang-chao, Liulin Yang, Yang Tingfang, L. Zhiyong, Li Wei","doi":"10.1109/IFEEA51475.2020.00014","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00014","url":null,"abstract":"To improve fault prediction for power transformer, a new model of the least squares double support vector regression machine (LSTSVR) model is adopted to predict the concentration and development trend of dissolved gases in transformer oil. This method is based on the double support vector regression machine, uses the idea of least squares and replaces the inequality constraints in the traditional support vector regression machine with equality constraints, which reduces the computational complexity and makes the prediction more accurate. Simulation results show that the proposed LSTSVR prediction model is feasible and dependable. The predicted values of LSTSVR model fit well with the measured values by the foregoing analysis. Compared with LSSVR, the MPE, MRE and RMSE of LSSVR are much less than those of the least squares support vector regression machine (LSSVR) prediction model. Besides decreasing prediction error and improving forecasting precision greatly, it also provides a new way to solve other data forecasting problems in power system.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114356256","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: 2
Effects of interfacial tension on the stability of toroidal droplets in viscous oils 界面张力对粘性油中环形液滴稳定性的影响
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00047
Li-Min Zheng, Q. Xie, Xin-Kang Chen, Wei Zhang, Rong Liu, Xue Chen
{"title":"Effects of interfacial tension on the stability of toroidal droplets in viscous oils","authors":"Li-Min Zheng, Q. Xie, Xin-Kang Chen, Wei Zhang, Rong Liu, Xue Chen","doi":"10.1109/IFEEA51475.2020.00047","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00047","url":null,"abstract":"Toroidal droplets are inherently unstable in a viscous system, they can be split into several spherical droplets via Rayleigh-Plateau instability. In this paper, we investigate the dynamic behaviors of toroidal droplets in viscous oils systematically. We find that for low interfacial tension systems, the initial aspect ratio of toroidal droplets increases as the interfacial tension decreases. It suggests that interfacial tension plays a significant role in initial morphology and determines the dynamic behaviors. We further investigate the effects on the breakup dynamics by balancing viscous and interfacial tension stresses. Results indicate that surrounding viscous oils help to sustain the surface-tension-driven instability and thus stabilize it against breakup. Our systematic investigations provide novel insights into understanding breakup dynamics of toroidal droplets in viscous phases; the results could inspire methods to control toroidal droplets for various applications.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114898289","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
Verification and Improvement of Electric Coupler Plugging in Spacecraft 电耦合器插接航天器的验证与改进
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00054
Jiulin Xie, Xiaohui Song, Qiangbing Zhang, Wei Wang
{"title":"Verification and Improvement of Electric Coupler Plugging in Spacecraft","authors":"Jiulin Xie, Xiaohui Song, Qiangbing Zhang, Wei Wang","doi":"10.1109/IFEEA51475.2020.00054","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00054","url":null,"abstract":"During the spacecraft assembly process, cables need to be frequently plugged in. Since the vacant electrical connectors are all wrapped in anti-static red cloth bags, the red cloth bags need to be opened one by one during the operation to find the electrical connectors to be operated. As a result, the labor intensity of electric fitting personnel has been increased. And repeated operations are performed beside the satellite increased operational risks such as bumps and mis plugging. Based on the work practice, this article puts forward a suggestion to increase the number and color of the electrical connector at the end of the cable branch and uses a certain type of electrical equipment to compare the work efficiency. This suggestion has a certain meaning to improve work efficiency of the final assembly and lower the risk of operation in electric fitting.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115029590","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
Dual-loop Cooperative Control Strategy for Power Conversion System 电力转换系统的双环协同控制策略
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/IFEEA51475.2020.00145
Mengjie Li, Zhe Wei, Bo Hu, Congli Li
{"title":"Dual-loop Cooperative Control Strategy for Power Conversion System","authors":"Mengjie Li, Zhe Wei, Bo Hu, Congli Li","doi":"10.1109/IFEEA51475.2020.00145","DOIUrl":"https://doi.org/10.1109/IFEEA51475.2020.00145","url":null,"abstract":"In view of the application requirements of power conversion system (PCS) under different working conditions, a control strategy of PCS with DC voltage loop and constant power loop synergizing outer loop and current inner loop is designed. It solves the problem of voltage and current dynamic oscillation caused by traditional methods in mode switching (constant voltage mode, constant power mode). This strategy prevents the over-voltage or under-voltage of the PCS bus voltage during the switching process from causing battery over-current damage and improves the stability of the system. By building a Matlab/Simulink simulation platform, the stable operation of the PCS during power scheduling and mode switching is verified.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124038012","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 influence of particle number on the maximum static friction force in a three-layer model 三层模型中颗粒数对最大静摩擦力的影响
2020 7th International Forum on Electrical Engineering and Automation (IFEEA) Pub Date : 2020-09-01 DOI: 10.1109/ifeea51475.2020.00202
L. Jia, Pengfei Cao
{"title":"The influence of particle number on the maximum static friction force in a three-layer model","authors":"L. Jia, Pengfei Cao","doi":"10.1109/ifeea51475.2020.00202","DOIUrl":"https://doi.org/10.1109/ifeea51475.2020.00202","url":null,"abstract":"We use the extended three-layer FK model. When the upper potential is subjected to an increasing external driving force, the velocity of the upper layer potential increases gradually. We define the turning force as the maximum static friction force of the system. We study the effect of the number of particles in the middle layer on the maximum static friction force of the system. It is found that the maximum static friction force of the system increases with the increase of the number of atoms. It is also found that there is a linear relationship between the maximum static friction force and the number of atoms.","PeriodicalId":285980,"journal":{"name":"2020 7th International Forum on Electrical Engineering and Automation (IFEEA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129428505","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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