Tao Ren, Yifeng Han, Xu Chai, Kai-Lin Xu, Jiangming Jia
{"title":"Design and braking calculation of traveling device of gantry crane","authors":"Tao Ren, Yifeng Han, Xu Chai, Kai-Lin Xu, Jiangming Jia","doi":"10.1145/3508297.3508340","DOIUrl":"https://doi.org/10.1145/3508297.3508340","url":null,"abstract":"Gantry crane is an important part of the hydropower plant equipment, undertaking the task of opening and closing the dam gates. At present, the operation of the gantry crane is mainly controlled manually by the ground commanders who rely on visual inspection to direct the driver, and the positioning accuracy and efficiency are low. To address the problems, this paper is based on RFID technology to design the automatic walking positioning system of the gantry crane, analyze the braking process of the hoist carriage walking mechanism, calculate the braking distance and braking time of the carriage walking mechanism under different braking conditions, and obtain the relationship between the braking distance S and the braking time x of the walking mechanism under normal braking conditions, as well as the dynamics of the braking distance S during emergency braking. equation.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116101709","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":"Design and Realization of Anti-scratch System on Vehicle Bottom Based on 51 Single-chip Microcomputer","authors":"Chunling Wang, Haoran Chen, Yu-li Xia","doi":"10.1145/3508297.3508342","DOIUrl":"https://doi.org/10.1145/3508297.3508342","url":null,"abstract":"Abstract: In order to realize the non-contact scratch detection of automobiles, a vehicle bottom anti-scratch system based on 51 single-chip microcomputer is designed. This system uses AT89C52 single-chip microcomputer as the core and combines the ultrasonic transmission and reception detection circuit to construct the vehicle bottom anti-scratch system. Relying on the hardware system of scratching, the corresponding software system of ultrasonic distance measurement is designed. Finally, the Protues platform is used in combination with Keil4 to realize the co-simulation of 51 control and acquisition of ultrasonic signals. Experiments show that the ranging system has high measurement accuracy. Through the design circuit of this distance measurement, it is possible to monitor the anti-scratch condition of the underside of the vehicle.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"135 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985121","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 Magnetic Properties of Magnetic Materials at Different Frequencies and Pressures","authors":"Wenyu Jiang, Hao-Hui Tang, Cen Wang","doi":"10.1145/3508297.3508307","DOIUrl":"https://doi.org/10.1145/3508297.3508307","url":null,"abstract":"For electric power producers, magnetic properties of magnetic materials under different external factors have a very important reference value for the design of products that meet the parameters of the target. Firstly, this paper introduces the research background of electrical magnetic materials. Then, it selects a variety of brands of electrical silicon steel and adopts the Epstein square method and the ring sample method in the measurement of one-dimensional magnetic properties. By testing the samples of silicon steel, the magnetic properties under 20 different frequencies and 15 different pressures were recorded respectively. Finally, this paper obtains the change of magnetic property parameters such as total loss ratio P, magnetic permeability u and remanence Br, which are most concerned in the magnetic properties of soft magnetic material and analyzes the reasons for the change of data. The experimental results show that the magnetic properties have regularity with the change of frequency and pressure. The measurement method in this paper can serve for the practical engineering.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116764255","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}
Zhiyou Ouyang, Baohua Sun, Wei Tang, T. Han, Kexin Zhang
{"title":"Attention based Bi-LSTM for Power Line Partial Discharge Fault Detection","authors":"Zhiyou Ouyang, Baohua Sun, Wei Tang, T. Han, Kexin Zhang","doi":"10.1145/3508297.3508302","DOIUrl":"https://doi.org/10.1145/3508297.3508302","url":null,"abstract":"Partial discharge is one of the faults in power distribution networks, especially in overhead lines with covered conductor of the medium voltage distribution networks, which may damage equipment and stop it’s functioning entirely. However, it is more difficult to detect partial discharge faults because of the different physical and chemical reactions and the same characterization caused by partial discharge faults, and the noise interference of the environment itself. By deploying distributed high-frequency sampling sensors to collecting three-phase voltage signal and using machine learning algorithms to detect the presence of partial discharge fault, can not only not interfere with the normal work of transmission lines to realize on-line detection of partial discharge fault, also can pass the upgrade in fault detection fault detection algorithm which can improve accuracy, therefore, it has become one of the main methods of partial discharge fault detection. In this paper, an attention mechanism based bidirectional long short term memory (Attention-LSTM) fault detection model is proposed, which can take full advantage of the bidirectional long neural network (Bi-LSTM) and attention mechanism, hence, no feature engineering expert is needed to solve the power line partial discharge fault detection issues. Experimental results show that the proposed model outperforms the existing methods in all selected performance metrics.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121714576","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":"Detection and location method of distribution network grounding line based on loop impedance method","authors":"Bin Zhang, Yanjun Li, Hanqing Huang, Xuemeng Wang, Zijian Dong, Zhanlong Zhang","doi":"10.1145/3508297.3508304","DOIUrl":"https://doi.org/10.1145/3508297.3508304","url":null,"abstract":"The accuracy of the existing grounding detection system is usually relatively high in identifying the grounding point at the level of transmission network, but it is poor in identifying the grounding point at the level of distribution network. In this paper, a detecting method for locating the ground wire of the distribution network based on the loop impedance method is proposed. It is less affected by environmental factors, has a low cost, and is suitable for low-voltage distribution network detection under different operating conditions of the system. The main contents of this paper are presented as follows: First, the unit-length line impedance equation is derived. The relationship between frequency and line length is proposed, considering the influence of frequency on current detection. Second, the optimal frequency point for detecting the line current of the grounding wire is demonstrated. Then, the current threshold method considering environmental factors to determine the existence of the grounding wire is analyzed. Third, a general equation for judging the existence of the grounding wire is proposed. To locate the specific grounding, a loop impedance ranging method based on the optimal frequency point is proposed. Finally the correctness of the theoretical analysis, as well as the predictive method, is verified through the PSCAD/EMTDC.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121867410","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":"A Deep Reinforcement Learning-Based Real-Time Control for Transfer Limits of Critical Inter-Corridors","authors":"Fei Xue, Hongqiang Li, Jili Wang, Gao Qiu, Junyong Liu, You-bo Liu, Tingjian Liu, Tianxiang Wang","doi":"10.1145/3508297.3508318","DOIUrl":"https://doi.org/10.1145/3508297.3508318","url":null,"abstract":"Controlling transfer power flow below transfer limits of inter-corridors is crucial for power system security. Traditional way that empirically decides pessimistic limits incurs low utilization of inter-corridors. To improve operational flexibility, a real-time intelligent controller that enables precise tracking for transfer limits is carried out. The concerned problem is firstly modelled based on the limit qualification by total transfer capability (TTC). To allow real-time controller, which is reinforcement learning (RL), to learn control law from the model, a physics and data co-driven interactive environment is built, where computational intractable TTC-induced security criterion is substituted by pre-trained supervised learners. Numerical studies on the modified IEEE 39-bus system manifest the reliability and impressive efficiency of the proposed method on transfer limits control.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129856932","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 Storage Platform based on Unmanned Intelligent Technology","authors":"Chenggong Zhai, Liyong Zhou, Pengcheng Zhou, Xingrong Cao, Rangmin Wu, Yang Huang, Junting Wu, Hongri Zhu","doi":"10.1145/3508297.3508332","DOIUrl":"https://doi.org/10.1145/3508297.3508332","url":null,"abstract":"Based on the Internet of things technology, big data technology and 5g mobile network technology, an unmanned intelligent warehousing system is established. The intelligent warehousing system is composed of three modules: dynamic inventory, dynamic inventory and life-cycle management. Through docking with the warehouse system, combined with the warehousing machine, outbound machine and query machine, the unmanned intelligent warehousing management is realized.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126699857","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 Optimal Allocation of Energy Storage in Distribution Network of Smart Park for Power-load Uncertainty","authors":"L. Xiang, Qian Dai, Junling Wu, Xing Tian, Xue Feng, Wenhe Peng","doi":"10.1145/3508297.3508320","DOIUrl":"https://doi.org/10.1145/3508297.3508320","url":null,"abstract":"This paper proposes an optimal allocation method of hybrid energy storage capacity with the goal of maximizing annual income aiming at coping cope with the adverse effects of randomness and volatility of photovoltaic power generation and electric vehicle charging on the distribution network of smart park. And the hybrid energy storage system consists of supercapacitors and lithium batteries. It can not only meet the demand for stabilizing power fluctuations, but also store electricity at low prices and sell electricity to the grid at high prices. A hybrid energy storage capacity allocation method based on time-of-use price is proposed, which allocates and optimizes the power and capacity of supercapacitors and lithium batteries respectively, and improves the income of hybrid energy storage system. Finally, the model is established, and the adaptive particle swarm algorithm (APSO) is used to verify the effectiveness of the method.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130741085","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}
Wenhao Li, Xiaofeng Ding, Xiaochun Lu, Jiayun Quan
{"title":"Low Frequency Time Code Signal Flow and Fault Diagnosis","authors":"Wenhao Li, Xiaofeng Ding, Xiaochun Lu, Jiayun Quan","doi":"10.1145/3508297.3508317","DOIUrl":"https://doi.org/10.1145/3508297.3508317","url":null,"abstract":"Abstract: low frequency time code timing is an important part of time service system in China, which is widely used for civil and military users. The transmitter used in low-frequency time code timing is also the only high-power solid-state low-frequency time code transmitter in China. In view of its importance and uniqueness, and the composition of the low-frequency transmitter is extremely complex, the components are very many, and the correlation of each component is very strong. Therefore, in the equipment operation, the daily maintenance of low-frequency transmitter is very important, However, there are few related introduction and related technical materials. The purpose of this paper is to summarize the operation and maintenance experience of low-frequency transmitter for many years, analyze the signal flow and related carrier composition of low-frequency transmitter, systematically describe the relevant work flow of low-frequency signal, analyze the relevant signal fault phenomenon, and summarize the methods to solve the corresponding fault, so as to provide relevant technology and experience for the follow-up equipment operation and maintenance work.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"21 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121573216","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":"Optimization and Improvement of Low-Voltage Power Amplifier for Low-Frequency Solid-State Transmitter","authors":"Wenhao Li, Xiaochun Lu, Xiaofeng Ding","doi":"10.1145/3508297.3508327","DOIUrl":"https://doi.org/10.1145/3508297.3508327","url":null,"abstract":"Abstract: The driving circuit of power amplifier bridge of solid state transmitter is an important part of power amplification. When the equipment is working, the power amplifier module works alternately in groups, and the half bridge is alternately connected. The low-voltage protection circuit around the driver will shut down the power amplifier module according to the operation instructions under the normal operation of the equipment. However, in case of abnormal conditions such as abnormal power supply, signal interference, front-end equipment failure, etc, the upper and lower half bridges will be connected at the same time, resulting in instantaneous damage to the power amplifier module.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130572332","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}