Pub Date : 2022-10-01DOI: 10.1109/WCEEA56458.2022.00028
Xia Liu, Tongyu Wang, Hu Wang, Jun Hou, Jinlong Liu, Xiao-chao Tian
The present study reports the design and testing of a novel piezoelectric pneumatic actuator with a circular double-chip piezoelectric oscillator as the driving source to improve the precision driving and control accuracy of micromechanical pneumatic pressure. First, the theoretical and simulation analyses of the gas in the system were conducted, and the variation curves of the output thrust and speed of the pneumatic actuator with frequency were generated. Accordingly, a prototype was constructed and tested at a resonance frequency of 607.677Hz. The testing results revealed that the optimum loading pressure of the pneumatic actuator was 0.04MPa, and the maximum thrust force was87.14,which is 1.81 times the pressure of OMPa. The maximum output speed was 26.15mm/s, which is 1.29times the pressure of OMPa. After loading the appropriate pressure, the output speed, output thrust and output step of the pneumatic actuator increased, and the drive voltage and frequency exhibited a linearly increasing relationship within a certain range.
{"title":"Design and testing of piezoelectric pneumatic actuators","authors":"Xia Liu, Tongyu Wang, Hu Wang, Jun Hou, Jinlong Liu, Xiao-chao Tian","doi":"10.1109/WCEEA56458.2022.00028","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00028","url":null,"abstract":"The present study reports the design and testing of a novel piezoelectric pneumatic actuator with a circular double-chip piezoelectric oscillator as the driving source to improve the precision driving and control accuracy of micromechanical pneumatic pressure. First, the theoretical and simulation analyses of the gas in the system were conducted, and the variation curves of the output thrust and speed of the pneumatic actuator with frequency were generated. Accordingly, a prototype was constructed and tested at a resonance frequency of 607.677Hz. The testing results revealed that the optimum loading pressure of the pneumatic actuator was 0.04MPa, and the maximum thrust force was87.14,which is 1.81 times the pressure of OMPa. The maximum output speed was 26.15mm/s, which is 1.29times the pressure of OMPa. After loading the appropriate pressure, the output speed, output thrust and output step of the pneumatic actuator increased, and the drive voltage and frequency exhibited a linearly increasing relationship within a certain range.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"56 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":"124307799","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/WCEEA56458.2022.00062
Yan Li, Chenjin Wu, Yi Chen, Hua Shi
Image reconstruction is an important research direction in computer vision. In this paper, a deep sparse representation model is proposed for super-resolution image reconstruction. We firstly study the decomposition of sparse coefficients and the construction of over-complete dictionary, and then use the K- VSD algorithm to extract the image sparse feature. Finally the deep feature migration model is designed to refine image features with deep convolutional neural network (CNN). The experiments carry out on the perspective single-channel, multi-channel and pixel-wise amplitude reconstruction. Both subjective assessments and objective metrics demonstrate that the proposed method has a good reconstruction effect.
{"title":"Deep sparse representation for Super-Resolution Image Reconstruction","authors":"Yan Li, Chenjin Wu, Yi Chen, Hua Shi","doi":"10.1109/WCEEA56458.2022.00062","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00062","url":null,"abstract":"Image reconstruction is an important research direction in computer vision. In this paper, a deep sparse representation model is proposed for super-resolution image reconstruction. We firstly study the decomposition of sparse coefficients and the construction of over-complete dictionary, and then use the K- VSD algorithm to extract the image sparse feature. Finally the deep feature migration model is designed to refine image features with deep convolutional neural network (CNN). The experiments carry out on the perspective single-channel, multi-channel and pixel-wise amplitude reconstruction. Both subjective assessments and objective metrics demonstrate that the proposed method has a good reconstruction effect.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"2 2 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":"122418370","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 grid connection of new energy power stations may inject harmonic pollution into the power grid. In order to clarify the harmonic responsibility of fresh energy stations, it is necessary to determine the source of harmonics. This paper proposes a harmonic power detection method based on instantaneous reactive power theory on the basis of the harmonic power analysis. This method identifies the source of specific harmonic according to the direction of harmonic power by detecting the power of different order harmonic. The corresponding simulation detection platform is built to verify the effectiveness and correctness of this method. The results show that different harmonics should be judged separately when identifying the harmonic direction of new energy stations, rather than simply using the direction of total harmonic power.
{"title":"Harmonic direction identification of new energy stations based on instantaneous reactive power theory and harmonic power","authors":"Yong Ren, Jian Liang, Shuang Zhang, Xinran Guo, Yuanchu Cheng","doi":"10.1109/WCEEA56458.2022.00020","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00020","url":null,"abstract":"The grid connection of new energy power stations may inject harmonic pollution into the power grid. In order to clarify the harmonic responsibility of fresh energy stations, it is necessary to determine the source of harmonics. This paper proposes a harmonic power detection method based on instantaneous reactive power theory on the basis of the harmonic power analysis. This method identifies the source of specific harmonic according to the direction of harmonic power by detecting the power of different order harmonic. The corresponding simulation detection platform is built to verify the effectiveness and correctness of this method. The results show that different harmonics should be judged separately when identifying the harmonic direction of new energy stations, rather than simply using the direction of total harmonic power.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"38 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":"131525959","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}
Inertial navigation system (INS) is a pure autonomous navigation system, which can provide continuous real-time position, speed, and attitude information. The INS has the characteristics of short-term high accuracy and strong anti-interference ability, but the position error will accumulate with the extension of time. In order to further improve the accuracy of the traceless Kalman filter (KF) in Beidou/inertial conduction,.a Back Propagation (BP) neural network aided approach is developed in combination with improved differential evolution algorithm (DE). Specifically, we designed a new BP network that fuse multi features of signals. the INS and Beidou fusion data are collected as samples to train the BP neural network. Then, the improved DE algorithm is employed to optimize KF, attaining superior fusion efficiency. Simulation results demonstrate that the stability and accuracy of position have been significantly improved compared with the original combinatorial positioning model.
{"title":"A Multi Feature Fusion Aided Positioning for INS/Beidou with Combination of BP Neural Network and Differential Evolution Kalman Filter","authors":"Zhibin Zang, Peiguang Wang, Yongxin Zhang, Sheng Ma, Xiangdong Chen, Jie Dong, Jianjun Chen","doi":"10.1109/WCEEA56458.2022.00055","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00055","url":null,"abstract":"Inertial navigation system (INS) is a pure autonomous navigation system, which can provide continuous real-time position, speed, and attitude information. The INS has the characteristics of short-term high accuracy and strong anti-interference ability, but the position error will accumulate with the extension of time. In order to further improve the accuracy of the traceless Kalman filter (KF) in Beidou/inertial conduction,.a Back Propagation (BP) neural network aided approach is developed in combination with improved differential evolution algorithm (DE). Specifically, we designed a new BP network that fuse multi features of signals. the INS and Beidou fusion data are collected as samples to train the BP neural network. Then, the improved DE algorithm is employed to optimize KF, attaining superior fusion efficiency. Simulation results demonstrate that the stability and accuracy of position have been significantly improved compared with the original combinatorial positioning model.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"13 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":"127501350","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/WCEEA56458.2022.00031
Zeming Zhuang, Yifan Li, Yi Jin
In recent years, with the development of electronic industry, metallic elliptic waveguide has been paid more and more attention in the field of communication because of their many advantages in microwave transmission. However, due to the complexity of elliptic waveguide, the study of waveguide wall current is always one of the hot spots and difficulties in this field. In this paper, the method of electromagnetic theory derivation and fitting is used. Mathieu function is obtained by separating variables in the elliptic coordinate system, and the field structure in the waveguide is solved by Longitudinal Field Method. Then, the wall current distribution is obtained through the boundary conditions. The results are simulated, analyzed and discussed. The method presented in this paper is helpful for the application of elliptical waveguide, especially for the design of the relevant devices.
{"title":"Studies on the wall currents distributions of elliptical waveguide","authors":"Zeming Zhuang, Yifan Li, Yi Jin","doi":"10.1109/WCEEA56458.2022.00031","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00031","url":null,"abstract":"In recent years, with the development of electronic industry, metallic elliptic waveguide has been paid more and more attention in the field of communication because of their many advantages in microwave transmission. However, due to the complexity of elliptic waveguide, the study of waveguide wall current is always one of the hot spots and difficulties in this field. In this paper, the method of electromagnetic theory derivation and fitting is used. Mathieu function is obtained by separating variables in the elliptic coordinate system, and the field structure in the waveguide is solved by Longitudinal Field Method. Then, the wall current distribution is obtained through the boundary conditions. The results are simulated, analyzed and discussed. The method presented in this paper is helpful for the application of elliptical waveguide, especially for the design of the relevant devices.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"123 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":"114468671","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/WCEEA56458.2022.00041
Cheng-jia Zhong, Jianhua Xiang, J. Liu
This paper establishes a model of flexible multibody dynamics for conrod small end bearing based on extended Reynolds equation considering lubricating oil fill ratio and average flow model. It analyzes internal flow process and characteristics of lubricating oil, discusses oil film formation and distribution mechanism, and acquires influence law of revolving speed and modeled lines on internal flow. Results show the flow of lubricating oil in conrod small end is mainly affected by relative motion of piston pin and bushing, and further spreads circumferentially, and inhales from outside and flows out axially; with revolving speed increases, average volume flow rate is higher, and minimum oil film thickness is reduced; neither the in-cylinder pressure nor change of bushing internal surface molded line affects average volume flow rate significantly.
{"title":"Study on Internal Flow Characteristics and Law of Conrod Small End Bearing for Internal Combustion Engine","authors":"Cheng-jia Zhong, Jianhua Xiang, J. Liu","doi":"10.1109/WCEEA56458.2022.00041","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00041","url":null,"abstract":"This paper establishes a model of flexible multibody dynamics for conrod small end bearing based on extended Reynolds equation considering lubricating oil fill ratio and average flow model. It analyzes internal flow process and characteristics of lubricating oil, discusses oil film formation and distribution mechanism, and acquires influence law of revolving speed and modeled lines on internal flow. Results show the flow of lubricating oil in conrod small end is mainly affected by relative motion of piston pin and bushing, and further spreads circumferentially, and inhales from outside and flows out axially; with revolving speed increases, average volume flow rate is higher, and minimum oil film thickness is reduced; neither the in-cylinder pressure nor change of bushing internal surface molded line affects average volume flow rate significantly.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"43 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":"123227477","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/WCEEA56458.2022.00058
Zhiqiang Zuo, Chuanji Wu, Ran Cai, Baorui Chen, Jun Wang
In order to scientifically analyze the mechanical effects of mine mining, it is necessary to save a variety of types and massive amounts of data. This paper analyzes the types of information storage systems based on the software of ArcGIS Engine environment, proposes the operation method of information storage, analyzes the details of IFData data implementation, and writes storage data code. The feasibility of the proposed method is verified by example.
{"title":"Research on mine safety data storage based on the ArcGIS software","authors":"Zhiqiang Zuo, Chuanji Wu, Ran Cai, Baorui Chen, Jun Wang","doi":"10.1109/WCEEA56458.2022.00058","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00058","url":null,"abstract":"In order to scientifically analyze the mechanical effects of mine mining, it is necessary to save a variety of types and massive amounts of data. This paper analyzes the types of information storage systems based on the software of ArcGIS Engine environment, proposes the operation method of information storage, analyzes the details of IFData data implementation, and writes storage data code. The feasibility of the proposed method is verified by example.","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":"123304317","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/WCEEA56458.2022.00010
Jihong Kong, Kun Huang, Yongxin Pang, Xi Luo, Man He, Chao Wu
In order to solve the problem of stable real-time display and interaction of data in power system immersive virtual simulation applications, this article proposes a data communication protocol for power system virtual reality simulation system. Establish a data communication link between the model editing platform and the 3D virtual simulation platform, and formulate the corresponding communication protocol in a way of functionally distinguishing information types to ensure accurate and complete information exchange between the two platforms. This method can realize the data interaction and model operation between the two communication platforms.
{"title":"Research and Application of A Data Communication Protocol for Power System Virtual Reality Simulation System","authors":"Jihong Kong, Kun Huang, Yongxin Pang, Xi Luo, Man He, Chao Wu","doi":"10.1109/WCEEA56458.2022.00010","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00010","url":null,"abstract":"In order to solve the problem of stable real-time display and interaction of data in power system immersive virtual simulation applications, this article proposes a data communication protocol for power system virtual reality simulation system. Establish a data communication link between the model editing platform and the 3D virtual simulation platform, and formulate the corresponding communication protocol in a way of functionally distinguishing information types to ensure accurate and complete information exchange between the two platforms. This method can realize the data interaction and model operation between the two communication platforms.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"10 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":"115417059","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/WCEEA56458.2022.00014
Weiming Shao, J. Liu, Kaifa Hong, Bangcheng Huang
In view of the fact that the operating characteristics of solar cell are easily affected by ambient temperature and light intensity. A simulation model of single solar cell is established in MATLAB/simulink according to the optimization of its precise physical characteristics.Considering that photovoltaic arrays are prone to partial shading,a set of 1200W photovoltaic array simulation model is designed according to partial multi-shading formation conditions. After modeling simulation and experiment verification, the experiment test results and modeling simulation results have same operating characteristics, which proves the validity of the model. This model can be used to simulate photovoltaic arrays of various scales under various partial multi-shading conditions. As a result, this model can be applied to further studies of photovoltaic power generation systems.
{"title":"Modeling for Photovoltaic Array under Partial Multi-Shading Conditions","authors":"Weiming Shao, J. Liu, Kaifa Hong, Bangcheng Huang","doi":"10.1109/WCEEA56458.2022.00014","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00014","url":null,"abstract":"In view of the fact that the operating characteristics of solar cell are easily affected by ambient temperature and light intensity. A simulation model of single solar cell is established in MATLAB/simulink according to the optimization of its precise physical characteristics.Considering that photovoltaic arrays are prone to partial shading,a set of 1200W photovoltaic array simulation model is designed according to partial multi-shading formation conditions. After modeling simulation and experiment verification, the experiment test results and modeling simulation results have same operating characteristics, which proves the validity of the model. This model can be used to simulate photovoltaic arrays of various scales under various partial multi-shading conditions. As a result, this model can be applied to further studies of photovoltaic power generation systems.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"20 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":"124615338","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/WCEEA56458.2022.00048
Zhun Hu, Lei Zha, Chaohao Wang, Chuan Wang, Zhiquan Ma, Hongru Zheng, Quan Zhou
In allusion to the condition that the harmonic impedance is difficult to obtain in actual power grid, a harmonic source location method under unknown harmonic impedance is proposed. In the proposed methodology, the harmonic impedance matrix is obtained by the eigenvalue decomposition of the autocorrelation matrix of the measured samples, and then the signal of each harmonic source current is estimated. Finally, the exact locations of the harmonic sources are identified through mutual information. The effectiveness of the proposed method is verified based on the IEEE 9-bus test system.
{"title":"Locating Multiple Harmonic Sources under the Condition of Unknown Harmonic Impedances","authors":"Zhun Hu, Lei Zha, Chaohao Wang, Chuan Wang, Zhiquan Ma, Hongru Zheng, Quan Zhou","doi":"10.1109/WCEEA56458.2022.00048","DOIUrl":"https://doi.org/10.1109/WCEEA56458.2022.00048","url":null,"abstract":"In allusion to the condition that the harmonic impedance is difficult to obtain in actual power grid, a harmonic source location method under unknown harmonic impedance is proposed. In the proposed methodology, the harmonic impedance matrix is obtained by the eigenvalue decomposition of the autocorrelation matrix of the measured samples, and then the signal of each harmonic source current is estimated. Finally, the exact locations of the harmonic sources are identified through mutual information. The effectiveness of the proposed method is verified based on the IEEE 9-bus test system.","PeriodicalId":143024,"journal":{"name":"2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)","volume":"21 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":"122984227","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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