2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)最新文献_第6页

Influence of Temperature on the Partial Discharge Inception Characteristics of Typical Insulation-shaping Components in Transformer 温度对变压器典型绝缘成形元件局部放电起始特性的影响

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708137

Haozhi Shi, Shuqi Zhang, Xinru Yu, Feiyang Su, C. Gao, B. Qi, Chengrong Li

{"title":"Influence of Temperature on the Partial Discharge Inception Characteristics of Typical Insulation-shaping Components in Transformer","authors":"Haozhi Shi, Shuqi Zhang, Xinru Yu, Feiyang Su, C. Gao, B. Qi, Chengrong Li","doi":"10.1109/AEERO52475.2021.9708137","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708137","url":null,"abstract":"In this paper, the effect of temperature on the partial discharge inception characteristics of typical insulation-shaping components is demonstrated. The partial discharge test platform was established to test the typical insulation-shaping components of three manufacturers. The products of each manufacturer were tested for the partial discharge inception voltage and magnitude at five temperatures of 20°C 35°C, 50°C, 65°C and 80°C, and their distribution figures were drawn. Based on the test results, the partial discharge inception characteristics of the insulation-shaping components of the three manufacturers were compared, and the dispersion of the product data was analyzed. According to the analysis result, it can be concluded that the partial discharge inception voltage of typical insulation-shaping components decreases with the increase of temperature, and the discharge magnitude rise with the increase of temperature, and the performance of various insulation-shaping components of each manufacturer is different.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"43 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76241570","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

Study on Characteristics of Partial Discharge Caused by Micro-bubble in Insulating Oil 绝缘油中微气泡局部放电特性的研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708212

M. Gao, Lin Ke, M. Fu, Hongbin Zhou, Lu Cai, Neng Wang, Jianxin Wang, Baojun Zhao

{"title":"Study on Characteristics of Partial Discharge Caused by Micro-bubble in Insulating Oil","authors":"M. Gao, Lin Ke, M. Fu, Hongbin Zhou, Lu Cai, Neng Wang, Jianxin Wang, Baojun Zhao","doi":"10.1109/AEERO52475.2021.9708212","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708212","url":null,"abstract":"In the last few decades, Bubbling phenomenon grows to be a major concern for its insulation threats in oil-immersed facilities during dynamic rating or overloading. Formed bubbles with radius from tens to hundreds um could lead to partial discharge or even serious insulation failure. However, previous studies on bubble-induced discharge in insulating oil usually focused on millimeter size bubbles. The research to date has not been able to determine the real threat of micro-bubbles of tens to hundreds um of in oil. In this paper, the characteristics of partial discharge induced by micro-bubbles were investigated. The finding is unexpected and suggests that partial discharge inception electric field strength is significantly higher than the theoretical value, which shows tiny change with variation of bubbles radius. Besides, bubble radius is a significant factor on the number of partial discharge current pulses and the apparent charge. The number of current pulses induced by a single bubble could help to reveal the interaction mechanism between bubbles and discharges. Finally, the equation associating the apparent charge and bubble radius was fitted.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"17 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80181841","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

Fault Diagnosis of High-Voltage Circuit Breaker Based on Digital Twin 基于数字孪生的高压断路器故障诊断

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708367

Yunyi Zhu, Z. Qian, Shuai Yuan, Hao Yu

引用次数: 3

Short-term prediction study on the development trend of free particle defects within GIS based on ARMA model 基于ARMA模型的GIS自由粒子缺陷发展趋势短期预测研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708119

Meng Cao, Chi Zhang, Q. Tang, Jin He, Xuliang Zhu, Qi Zhao

引用次数: 0

Research on Control Strategy of Servo Motor Used to Drive High Voltage Circuit Breaker 高压断路器伺服电机驱动控制策略研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708101

Fei Yan, Baoying He, Yu Liu, Jianying Zhong, Shengwu Tan, Dawei He, Jiayuan Xu, Rui Yang

{"title":"Research on Control Strategy of Servo Motor Used to Drive High Voltage Circuit Breaker","authors":"Fei Yan, Baoying He, Yu Liu, Jianying Zhong, Shengwu Tan, Dawei He, Jiayuan Xu, Rui Yang","doi":"10.1109/AEERO52475.2021.9708101","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708101","url":null,"abstract":"Motor-drive high voltage circuit breaker (HVCB) is becoming a research hotspot because of the high mechanical reliability, the controllability of the whole process of movement, and the potential to realize intelligence. However, the application in high voltage level is constrained due to the requirement of large energy output within a short period. To increase motor torque, improve torque utilization and reduce consumption of hardware resource, the simplified algorithm of maximum torque per ampere (MTPA) is proposed in this paper. For this reason, the mathematical model of permanent magnet synchronous motor (PMSM) is introduced, and the exact algorithm of MTPA and the simplified one are derived respectively. The adams/simulink co-simulation model of HVCB driven by servo motor is established and the experiment platform is built in order to verify the effectiveness of the simplified MTPA(S-MTPA),. The conclusion that the control accuracy of S-MTPA can meet the requirements of HVCB is proved by the results of simulation and experiment.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"58 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85160355","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

Garbage Classification and Recognition System Based on Neural Network 基于神经网络的垃圾分类识别系统

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708200

Tianpeng He, Wenzheng Li, Xijia Du, Huina Yang, Haoxi Cong

{"title":"Garbage Classification and Recognition System Based on Neural Network","authors":"Tianpeng He, Wenzheng Li, Xijia Du, Huina Yang, Haoxi Cong","doi":"10.1109/AEERO52475.2021.9708200","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708200","url":null,"abstract":"Traditional garbage classification has many errors and consumes resources seriously, which no longer meets the current needs of garbage classification. In response to these problems, this research proposes a garbage classification model based on migration learning and the application of this model to the actually created garbage separation device. First, pre-train the ResNet50 deep network learning model on the ImageNet dataset; Secondly, transfer the underlying features shared by the edges, colors, and textures learned by the convolution module of the ResNet50 deep network model to the residual network layer of the network model for garbage classification as the initialization parameters; Then use the extracted feature map as input to train the garbage classification model; Finally, modify the fully connected layer to a four-classification problem to accurately classify the garbage. By using the improved Trashnet training set to compare the three pre-training networks, namely alexnet, googlenet and resnet50, the results show that resnet50 has a relatively good recognition accuracy. After fine-tuning the training parameters and the training set, the final verification rate is 91.42%. which basically meet the accuracy requirements of garbage classification. At the same time, this garbage sorting network is implanted into the STM32F4 single-chip microcomputer through the Raspberry Pi to obtain a rubbish sorting device that can identify garbage. The photos recorded by the camera in real time are transmitted to the single-chip microcomputer for processing to obtain the classification result. At this time, the motor starts to work so that the garbage can fall into the corresponding bucket. While reducing the consumption of human and material resources, it greatly improves the accuracy of garbage classification and provides a new method for garbage classification.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"68 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89193016","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

Implementation of Current Transformer Algorithm Based on Machine Learning 基于机器学习的电流互感器算法实现

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708138

Qiji Dai, Mingyong Xin, J. Zhu, B. Tian, Zhong Liu, Yanze Zhang

引用次数: 0

Research on Mechanism Design Scheme of 500kv Fast Circuit Breaker 500kv快速断路器机构设计方案研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708351

Jiali Chen, Ruihai Li, Zaixing Peng, Kai Liu, Shuai Zhang, H. Qian

{"title":"Research on Mechanism Design Scheme of 500kv Fast Circuit Breaker","authors":"Jiali Chen, Ruihai Li, Zaixing Peng, Kai Liu, Shuai Zhang, H. Qian","doi":"10.1109/AEERO52475.2021.9708351","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708351","url":null,"abstract":"Reducing the fault isolation time of 500kV transmission line is of great significance for enhancing the transmission capacity of transmission line and improving the security and stability of power grid. In this paper, the CTY-5/10/20 series hydraulic operating mechanism is improved. The electromagnetic repulsion mechanism is used to drive the hydraulic valve directly in the 500kV fast circuit breaker mechanism, which cancels the response time of the primary valve of the original transmission hydraulic mechanism. Finally, the action time of the mechanism is reduced to 4ms to achieve the fast response of the mechanism, and then the breaking time of the circuit breaker is reduced. Through simulation and test verification, the average opening speed of the improved 500kV fast circuit breaker mechanism can reach 10m / s, and the opening time is about 8mm.The research results of this paper accumulate experience for the future engineering application of 550kV fast AC circuit breaker in China Southern Power Grid, and provide reference for the future planning and safe and stable operation of China Southern Power Grid.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"171 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87598766","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 Supporting Control Technology of Wind driven generator Auxiliary Power Grid Based on Energy Storage DC Access 基于储能直流接入的风力发电机辅助电网配套控制技术研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708401

Haiyuan Lian, S. Hu, Yanfeng Meng

引用次数: 1

Research on the Influences of Temperature on Frequency Domain Dielectric Spectroscopy of the ERIP Bushing Capacitor Core 温度对ERIP套管电容器铁芯频域介电光谱影响的研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI: 10.1109/AEERO52475.2021.9708357

Tai-Hung Liu, Xiongjie Xie, Xiaoqing Luo, Wei Hu, Zuoming Xu, P. Yin, Qiming Ye

{"title":"Research on the Influences of Temperature on Frequency Domain Dielectric Spectroscopy of the ERIP Bushing Capacitor Core","authors":"Tai-Hung Liu, Xiongjie Xie, Xiaoqing Luo, Wei Hu, Zuoming Xu, P. Yin, Qiming Ye","doi":"10.1109/AEERO52475.2021.9708357","DOIUrl":"https://doi.org/10.1109/AEERO52475.2021.9708357","url":null,"abstract":"Epoxy resin impregnated paper (ERIP) bushing capacitor core is one of the main insulation part of the capacitance graded bushing. The insulating property of the ERIP bushing capacitor core is influenced by the temperature in the actual operation environmental. In order to explore the influence of temperature on frequency dielectric response of the ERIP bushing capacitor core, the frequency domain dielectric spectroscopy (FDS) is utilized for ERIP bushing capacitor core at different temperature, then a double relaxation Debye model is proposed in the paper. Firstly, the temperature experiment of ERIP bushing capacitor core is carried out, and the FDS test is performed on the bushing core at 20°C, 40°C, 60°C, 80°C and 100°C, respectively. Secondly, the FDS spectrum of the dielectric loss factor (tanδ) and the real and imaginary parts of the complex capacitance are plotted at different temperature. Finally, the influences of temperature on FDS test of ERIP bushing capacitor core are analyzed based on a double relaxation Debye model. The test results and analysis indicated that the entire spectrum of tanδ, the imaginary part of the complex capacitance are shown to shift toward the positive vertical direction and move to the high frequency. A good fitness result is obtained by the double relaxation Debye model, and the degree of fit on the data exceeds 90%. The high-frequency dielectric constant, interfacial polarization loss and dipole polarization loss can be made up for the real part of the complex capacitance. These conclusions can provide a mathematical model for the ERIP bushing capacitor core, which will be supportive for ageing state of bushing core insulation.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"58 4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90372938","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