Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00035
Shifeng Zhang, Xiao Chang, Shengwen Li, Jinhao Wang
The harmonic impedance at the wind farm side may not be much greater than the harmonic impedance at the system side due to the fan filter and reactive power compensation equipment. Therefore, the influence of the impedance at the wind farm side cannot be ignored when evaluating the harmonic emission level. A method for estimating harmonic impedance of system side based on parameter adaptive FastICA is proposed. According to the independence of the fluctuation amount of the harmonic sources on both sides of the PCC point, the parameter adaptive FastICA method is used to extract the independent components, and the least square method is used to solve the mixed matrix, and then the harmonic impedance on the system side is obtained. The approximate value of the harmonic impedance at the wind farm side is calculated through the parameters of the wind farm elements, and the influence of the harmonic impedance at the wind farm side is considered to evaluate the harmonic emission level. This method does not need to select the activation function according to the prior information of the probability density of the source signal, and has better separation effect of the source signal and anti background harmonic interference ability. The effectiveness of the proposed method is verified by simulation and measurement.
{"title":"Evaluation of wind farm harmonic emission level based on parameter adaptive FastICA","authors":"Shifeng Zhang, Xiao Chang, Shengwen Li, Jinhao Wang","doi":"10.1109/WCEEA56458.2022.00035","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00035","url":null,"abstract":"The harmonic impedance at the wind farm side may not be much greater than the harmonic impedance at the system side due to the fan filter and reactive power compensation equipment. Therefore, the influence of the impedance at the wind farm side cannot be ignored when evaluating the harmonic emission level. A method for estimating harmonic impedance of system side based on parameter adaptive FastICA is proposed. According to the independence of the fluctuation amount of the harmonic sources on both sides of the PCC point, the parameter adaptive FastICA method is used to extract the independent components, and the least square method is used to solve the mixed matrix, and then the harmonic impedance on the system side is obtained. The approximate value of the harmonic impedance at the wind farm side is calculated through the parameters of the wind farm elements, and the influence of the harmonic impedance at the wind farm side is considered to evaluate the harmonic emission level. This method does not need to select the activation function according to the prior information of the probability density of the source signal, and has better separation effect of the source signal and anti background harmonic interference ability. The effectiveness of the proposed method is verified by simulation and measurement.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128101480","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}
The fabrication process of UNS S32760 super duplex stainless steel tubes is introduced in this paper. Through the research and optimization of the hot piercing process, the quality of S32760 tube products is controlled from the source; By adjusting and optimizing the parameters of the cold rolling mill, not only the dimensional accuracy is guaranteed, but also the quality of the internal and external surfaces is improved; and as the result of the exploration on the solid solution treatment process of the S32760 tube intermediate and finished products, all product performance indicators in the final inspection meet the relevant standards and user requirements.
{"title":"A Study on the Fabrication Process of UNS S32760 Super Duplex Seamless Steel Tubes","authors":"Xuhuai Chen, Shengda Cong, Qi Shao, Hongjun Shi, Guoqiang Wu","doi":"10.1109/WCEEA56458.2022.00049","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00049","url":null,"abstract":"The fabrication process of UNS S32760 super duplex stainless steel tubes is introduced in this paper. Through the research and optimization of the hot piercing process, the quality of S32760 tube products is controlled from the source; By adjusting and optimizing the parameters of the cold rolling mill, not only the dimensional accuracy is guaranteed, but also the quality of the internal and external surfaces is improved; and as the result of the exploration on the solid solution treatment process of the S32760 tube intermediate and finished products, all product performance indicators in the final inspection meet the relevant standards and user requirements.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123882051","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00015
Jun He, Rui Fan
In this paper, a miniaturized oscillating floating bucket wave power generation device is designed that can be installed on the offshore shore to generate electricity. The structure needs to be simple, easy to construct, low cost, high conversion efficiency and flexible installation position. We designed a set of mechanical structures to capture the wave energy through the floating bucket, and convert the up-and-down motion of the floating bucket into the rotating motion of the rotating shaft, which drives the generator to generate electricity after increasing the speed of the rotating shaft.
{"title":"Structural design of floating bucket wave energy power generation system","authors":"Jun He, Rui Fan","doi":"10.1109/WCEEA56458.2022.00015","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00015","url":null,"abstract":"In this paper, a miniaturized oscillating floating bucket wave power generation device is designed that can be installed on the offshore shore to generate electricity. The structure needs to be simple, easy to construct, low cost, high conversion efficiency and flexible installation position. We designed a set of mechanical structures to capture the wave energy through the floating bucket, and convert the up-and-down motion of the floating bucket into the rotating motion of the rotating shaft, which drives the generator to generate electricity after increasing the speed of the rotating shaft.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133243184","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}
In the traditional project cost management, due to the influence of many factors, its calculation accuracy is not high enough, which brings great difficulties to the construction project cost management. Using BIM technology to build a cost management model can provide very intuitive analysis results for cost managers, thus providing strong technical support for cost management of construction projects. This paper analyzes the application of BIM technology in construction cost management.
{"title":"Research on the Application of BIM Technology in Construction Cost Management","authors":"Zhi Xu, Xingqu Gao, Zhongquan Song, Xuwen Tian, Xiaohan Jiang","doi":"10.1109/WCEEA56458.2022.00052","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00052","url":null,"abstract":"In the traditional project cost management, due to the influence of many factors, its calculation accuracy is not high enough, which brings great difficulties to the construction project cost management. Using BIM technology to build a cost management model can provide very intuitive analysis results for cost managers, thus providing strong technical support for cost management of construction projects. This paper analyzes the application of BIM technology in construction cost management.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114521918","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00034
Junling Zhang, Ren Jin
With the development of the accuracy of electronic equipment, it constantly improves the quality requirement of the matching high-voltage power supply. However, Isolated high-voltage power supply is difficult to achieve high quality due to the particularity of sampling. In this paper, the design method of the optimal solution of dead time and shunt branch number of LLC resonant converer based on efficiency optimization is proposed, and the structure of matrix transformer is optimized to reduce eddy current loss and leakage inductance. Finally, the isolated LLC-DCT prototype is made with the power of 20kV/6kW and the frequency of 100kHz, which verifies the rationality and correctness of the design method
{"title":"The Design of isolated high voltage power supply based on LLC-DCT","authors":"Junling Zhang, Ren Jin","doi":"10.1109/WCEEA56458.2022.00034","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00034","url":null,"abstract":"With the development of the accuracy of electronic equipment, it constantly improves the quality requirement of the matching high-voltage power supply. However, Isolated high-voltage power supply is difficult to achieve high quality due to the particularity of sampling. In this paper, the design method of the optimal solution of dead time and shunt branch number of LLC resonant converer based on efficiency optimization is proposed, and the structure of matrix transformer is optimized to reduce eddy current loss and leakage inductance. Finally, the isolated LLC-DCT prototype is made with the power of 20kV/6kW and the frequency of 100kHz, which verifies the rationality and correctness of the design method","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124372495","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00051
Fang Yuan, Xiao Feng, Wencui Li, Dongyuan Li, Y. Liu
With the development of power system informatization, the operation ticket expert system has been widely used in power system. This study designs the dynamic behavior reasoning mechanism of Petri net based on the knowledge base of operation ticket constructed by Petri net model. By modifying the operation rules of Petri net and introducing suppression arc, the reasoning process is simplified, the reasoning efficiency is improved, and the conflict resolution in the reasoning process is realized. The example shows that the system can manage the power grid structure hierarchically, solve the problem of “state combination explosion”, and improve the universality and adaptability of the whole operation ticket expert system.
{"title":"Research and Development of an Improved Intelligent Operation Ticket System","authors":"Fang Yuan, Xiao Feng, Wencui Li, Dongyuan Li, Y. Liu","doi":"10.1109/WCEEA56458.2022.00051","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00051","url":null,"abstract":"With the development of power system informatization, the operation ticket expert system has been widely used in power system. This study designs the dynamic behavior reasoning mechanism of Petri net based on the knowledge base of operation ticket constructed by Petri net model. By modifying the operation rules of Petri net and introducing suppression arc, the reasoning process is simplified, the reasoning efficiency is improved, and the conflict resolution in the reasoning process is realized. The example shows that the system can manage the power grid structure hierarchically, solve the problem of “state combination explosion”, and improve the universality and adaptability of the whole operation ticket expert system.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129756447","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00025
Longhai Fu, Hui Wang, Zuwei Huang
At present, with the widespread application of power technology in production and life, and the addition of more non-linear power electronic devices to the power grid, the impact of the power grid is getting more and more serious, resulting in greater power grid pollution, affecting the quality of electrical energy, and affecting normal production work. The active power filter can better compensate the non-linear load to generate harmonics and effectively reduce grid pollution. Therefore, based on adaptive inverse control, this paper studies parallel active power filters and constructs simulation experiments to analyze the compensation effect of active power filters under balanced and unbalanced loads, in order to provide an effective theoretical basis for solving grid pollution.
{"title":"Simulation of Shunt Active Power Filter Basded on Adaptive Inverse Control","authors":"Longhai Fu, Hui Wang, Zuwei Huang","doi":"10.1109/WCEEA56458.2022.00025","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00025","url":null,"abstract":"At present, with the widespread application of power technology in production and life, and the addition of more non-linear power electronic devices to the power grid, the impact of the power grid is getting more and more serious, resulting in greater power grid pollution, affecting the quality of electrical energy, and affecting normal production work. The active power filter can better compensate the non-linear load to generate harmonics and effectively reduce grid pollution. Therefore, based on adaptive inverse control, this paper studies parallel active power filters and constructs simulation experiments to analyze the compensation effect of active power filters under balanced and unbalanced loads, in order to provide an effective theoretical basis for solving grid pollution.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114245124","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00016
Rong Fu
Electrolysis is a redox reaction under the action of an electric field. Preparation of aluminum by electrolysis is using molten sodium aluminum fluoride as a solvent, molten alumina as a solute, carbon as the anode, aluminum solution as the cathode, under the action of the electric field, the temperature is 950°C -970°C, the electrochemical reaction on the poles in the electrolytic cell: 2Al203==4Al302. Anode reaction: 2O2--4e-=02↑ cathode reaction: Al3+3e=Al o The main electrolytic product of the anode is C02 and CO, which may also contain small amounts of HF and parts of solid particulate matter. In order to improve the air quality and meet the emission standards, it is necessary to treat the anode production of the exhaust gas, which can only be discharged into the air before meeting the emission standards. The electrolysis product of the cathode is aluminum, which is purified and clarified in the thermal insulation furnace, cast into aluminum ingot or directly processed into wire billet and profile.
{"title":"The Aluminum Production Process is Optimized by Electrolysis Method","authors":"Rong Fu","doi":"10.1109/WCEEA56458.2022.00016","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00016","url":null,"abstract":"Electrolysis is a redox reaction under the action of an electric field. Preparation of aluminum by electrolysis is using molten sodium aluminum fluoride as a solvent, molten alumina as a solute, carbon as the anode, aluminum solution as the cathode, under the action of the electric field, the temperature is 950°C -970°C, the electrochemical reaction on the poles in the electrolytic cell: 2Al203==4Al302. Anode reaction: 2O2--4e-=02↑ cathode reaction: Al3+3e=Al o The main electrolytic product of the anode is C02 and CO, which may also contain small amounts of HF and parts of solid particulate matter. In order to improve the air quality and meet the emission standards, it is necessary to treat the anode production of the exhaust gas, which can only be discharged into the air before meeting the emission standards. The electrolysis product of the cathode is aluminum, which is purified and clarified in the thermal insulation furnace, cast into aluminum ingot or directly processed into wire billet and profile.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125159994","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00012
Xiaoying Chen
Under the strong development momentum of the digital economy, the communication service industry and big data are integrated to form a new growth driving force. This paper points out the problems existing in the traditional communication industry, mainly focusing on the challenges of input and output, core capabilities, efficiency and security, and then briefly analysis the current situation and main application scenarios of the integration of the communication industry and big data, and finally looks forward to the trend of the integration and development of the communication industry and big data, believing that big data communication will restart industry growth, and drive innovation as a strategic support for high-quality development.
{"title":"Application and development trend of big data in communication service industry","authors":"Xiaoying Chen","doi":"10.1109/WCEEA56458.2022.00012","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00012","url":null,"abstract":"Under the strong development momentum of the digital economy, the communication service industry and big data are integrated to form a new growth driving force. This paper points out the problems existing in the traditional communication industry, mainly focusing on the challenges of input and output, core capabilities, efficiency and security, and then briefly analysis the current situation and main application scenarios of the integration of the communication industry and big data, and finally looks forward to the trend of the integration and development of the communication industry and big data, believing that big data communication will restart industry growth, and drive innovation as a strategic support for high-quality development.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117171011","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}
Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00061
Liang Chang
In this paper, an overall introduction of fingerprint encryption algorithm is made, and then a fingerprint encryption algorithm with error correction is designed by adding error correction mechanism. This new fingerprint encryption algorithm can produce stochastic key in the form of multinomial coefficient by using the binary system sequencer, encrypt fingerprint, and use the Lagrange difference value to restore the multinomial during authenticating. Due to using the cyclic redundancy check code to find out the most accurate key, the accuracy of this algorithm can be ensured. Experimental result indicates that the fuzzy vault algorithm with error correction can well realize the template protection, and meet the requirements of biological information security protection. In addition, it also indicates that the system's safety performance can be enhanced by chanaing the key's length.
{"title":"The Research on Fingerprint Encryption Algorithm Based on The Error Correcting Code","authors":"Liang Chang","doi":"10.1109/WCEEA56458.2022.00061","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00061","url":null,"abstract":"In this paper, an overall introduction of fingerprint encryption algorithm is made, and then a fingerprint encryption algorithm with error correction is designed by adding error correction mechanism. This new fingerprint encryption algorithm can produce stochastic key in the form of multinomial coefficient by using the binary system sequencer, encrypt fingerprint, and use the Lagrange difference value to restore the multinomial during authenticating. Due to using the cyclic redundancy check code to find out the most accurate key, the accuracy of this algorithm can be ensured. Experimental result indicates that the fuzzy vault algorithm with error correction can well realize the template protection, and meet the requirements of biological information security protection. In addition, it also indicates that the system's safety performance can be enhanced by chanaing the key's length.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123301449","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}
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