Lifang Dong, Yuanyuan Li, H. Yue, Hong Xiao, Junying Chen
Autocorrelation function is employed to process the light emission signals obtained by PMT, which present the microdischarges igniting in dielectric barrier discharge system. In experiments, signals of different sizes area are measured. With increasing measured size, the signals changes and the number of microdischarges increase. However, the primary signals are coarse and disorder in time series, from which it can not be seen any influence of this microdischarge on the following one. To find the correlation between microdischarges at this time and the following ones, autocorrelation functions of the primary signals are calculated. It is found that with smaller measured area size, the number of microdischarges is smaller and the correlation coefficient fluctuates around 0. This indicates that the microdischarges at this time and the following one are weak correlated. With the measured area size increasing, i.e. the collective microdischarges number increasing, the autocorrelation coefficient increases, which indicates that the correlation degree between the microdischarges at this time and the following ones increases. As the collection of microdischarges in the discharge region, the current presents quasiperiodic property. The results show that the autocorrelation function processing is very useful to investigation on discharge mechanism.
{"title":"Analysis of the Light Emission Signals Based on Autocorrelation Function Calculation","authors":"Lifang Dong, Yuanyuan Li, H. Yue, Hong Xiao, Junying Chen","doi":"10.1109/ICECE.2010.1123","DOIUrl":"https://doi.org/10.1109/ICECE.2010.1123","url":null,"abstract":"Autocorrelation function is employed to process the light emission signals obtained by PMT, which present the microdischarges igniting in dielectric barrier discharge system. In experiments, signals of different sizes area are measured. With increasing measured size, the signals changes and the number of microdischarges increase. However, the primary signals are coarse and disorder in time series, from which it can not be seen any influence of this microdischarge on the following one. To find the correlation between microdischarges at this time and the following ones, autocorrelation functions of the primary signals are calculated. It is found that with smaller measured area size, the number of microdischarges is smaller and the correlation coefficient fluctuates around 0. This indicates that the microdischarges at this time and the following one are weak correlated. With the measured area size increasing, i.e. the collective microdischarges number increasing, the autocorrelation coefficient increases, which indicates that the correlation degree between the microdischarges at this time and the following ones increases. As the collection of microdischarges in the discharge region, the current presents quasiperiodic property. The results show that the autocorrelation function processing is very useful to investigation on discharge mechanism.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"28 1","pages":"4646-4648"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81075708","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}
Hongyang Zhang, Yanping Yao, Zheng Geng, Qiong-jian Fan
We present herein for the first time the physical pictures of wireless power transfer via evanescent fields. Our results show that the evanescent fields store energy in a localized domain and can exchange energy between two modes through evanescent waves. We also show that the energy transfer efficiencies can be greatly improved when long-tailed slowly-evanescent fields are adopted. We investigated the energy transfer efficiency and performance of wireless power transfer systems in detail and established their relationship with respect to the coupling strength and the output load parameters. Our theoretical analysis and computer simulations show that the work, radiation and absorption efficiencies are monotone functions of the coupling strength for a given output load parameter and there exists a global optimal output load configuration and a global optimal transfer rate for a fixed coupling strength parameter. The effectiveness, robustness and safety of this class of systems are also verified via the derivation of asymptotic behaviors of the optimum solutions.
{"title":"Physical Pictures and Performance Analysis of Wireless Power Transfer via Evanescent Fields","authors":"Hongyang Zhang, Yanping Yao, Zheng Geng, Qiong-jian Fan","doi":"10.1109/ICECE.2010.971","DOIUrl":"https://doi.org/10.1109/ICECE.2010.971","url":null,"abstract":"We present herein for the first time the physical pictures of wireless power transfer via evanescent fields. Our results show that the evanescent fields store energy in a localized domain and can exchange energy between two modes through evanescent waves. We also show that the energy transfer efficiencies can be greatly improved when long-tailed slowly-evanescent fields are adopted. We investigated the energy transfer efficiency and performance of wireless power transfer systems in detail and established their relationship with respect to the coupling strength and the output load parameters. Our theoretical analysis and computer simulations show that the work, radiation and absorption efficiencies are monotone functions of the coupling strength for a given output load parameter and there exists a global optimal output load configuration and a global optimal transfer rate for a fixed coupling strength parameter. The effectiveness, robustness and safety of this class of systems are also verified via the derivation of asymptotic behaviors of the optimum solutions.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"83 1","pages":"3985-3989"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81110516","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}
Huang Shize, Guo Qi-yi, Zhang Minjuan, Hu Jing-tai
This paper uses FTA (Fault Tree Analysis) with FMEA (Fault Mode Effect and Analysis) to do the study on reliability of low voltage apparatus. Establishing the fault tree is the most important step in using fault tree analysis. The validity of the tree model will have a great impact on the study result. The combination of the two analysis method can give a full-scale and detailed analysis of the product. Let FMEA get the product's fault mode and fault effect, and use Fault Tree Analysis method to build the fault tree and carry out qualitative analysis and quantitative analysis. The study result gives both theoretical and practical advices on improving the product's stability.
{"title":"Reliability Analysis on Dual Power Supply Controller Based on FMEA and FTA","authors":"Huang Shize, Guo Qi-yi, Zhang Minjuan, Hu Jing-tai","doi":"10.1109/ICECE.2010.379","DOIUrl":"https://doi.org/10.1109/ICECE.2010.379","url":null,"abstract":"This paper uses FTA (Fault Tree Analysis) with FMEA (Fault Mode Effect and Analysis) to do the study on reliability of low voltage apparatus. Establishing the fault tree is the most important step in using fault tree analysis. The validity of the tree model will have a great impact on the study result. The combination of the two analysis method can give a full-scale and detailed analysis of the product. Let FMEA get the product's fault mode and fault effect, and use Fault Tree Analysis method to build the fault tree and carry out qualitative analysis and quantitative analysis. The study result gives both theoretical and practical advices on improving the product's stability.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"20 1","pages":"1537-1541"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81144771","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}
Because of a wide range of Industrial Ethernet and the great difference between them, it is a difficult problem to select which one is proper when designing an automation system. The huge advantages of Industrial Ethernet are discussed, so are the protocol model and technologic characteristics. The usage patterns and the usage percentages of industrial Ethernet are analyzed. Then the performance of industrial Ethernet is compared and evaluated. Especially, this paper presents that after consideration for some factors, such as development expense and complexity, protocol compatibility, market share and etc, the suitable industrial Ethernet protocol can be selected according to the performance demand of the automation systems.
{"title":"Performance Analysis and Evaluation of Industrial Ethernet","authors":"Li Ming, Hong-san Liu, Lv Jia, Z. En","doi":"10.1109/ICECE.2010.365","DOIUrl":"https://doi.org/10.1109/ICECE.2010.365","url":null,"abstract":"Because of a wide range of Industrial Ethernet and the great difference between them, it is a difficult problem to select which one is proper when designing an automation system. The huge advantages of Industrial Ethernet are discussed, so are the protocol model and technologic characteristics. The usage patterns and the usage percentages of industrial Ethernet are analyzed. Then the performance of industrial Ethernet is compared and evaluated. Especially, this paper presents that after consideration for some factors, such as development expense and complexity, protocol compatibility, market share and etc, the suitable industrial Ethernet protocol can be selected according to the performance demand of the automation systems.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"28 1","pages":"1482-1485"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73611667","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}
Chaotic ant swarm algorithm is a novel optimization method, which has the ability of global optimum search. In this paper, a new chaotic ant swarm algorithm was used to identify the parameters for control systems. First the problem of parameter estimation of the control system is converted to a problem of parameter optimization which could be solved via chaotic ant swarm algorithm. Chaotic ant swarm algorithm has the ability of global optimum search. A numerical simulation on the well-known control system is conducted. Simulation results show that the proposed method is effective in parameter estimation of the control system.
{"title":"Parameter Recognition for Control Systems Based on Chaotic Ant Swarm Algorithm","authors":"Zhuzhi Jia, Hong-yu Zhu, Wan-sheng Cheng","doi":"10.1109/ICECE.2010.1307","DOIUrl":"https://doi.org/10.1109/ICECE.2010.1307","url":null,"abstract":"Chaotic ant swarm algorithm is a novel optimization method, which has the ability of global optimum search. In this paper, a new chaotic ant swarm algorithm was used to identify the parameters for control systems. First the problem of parameter estimation of the control system is converted to a problem of parameter optimization which could be solved via chaotic ant swarm algorithm. Chaotic ant swarm algorithm has the ability of global optimum search. A numerical simulation on the well-known control system is conducted. Simulation results show that the proposed method is effective in parameter estimation of the control system.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"104 1","pages":"5384-5387"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79527982","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}
Quantitative ultrasound diagnosis of osteoporosis has become one of the most potential methods for measuring Bone Mineral Density (BMD) because of its advantages of low-cost, no radiation and high precision. With the method of pulse transmission, we develop a detection system of quantitative ultrasound parameters taking TMS320F2810 as the core, so high-speed data acquisition and synchronization of ultrasonic signals which are transmitted and received by the transceiving circuit can be achieved. The studying has detection the speed called SOS that ultrasound transmit in the bone. We can use the message of the detection above to diagnose and forecast the bone mass loss, osteoporosis from a new angle. Respectively experiment to this people of different age, then validated the correctness of system.
{"title":"System Development of Quantitative Ultrasonic Detection for Osteoporosis","authors":"Zhang Lei, Wang Zhengfeng","doi":"10.1109/ICECE.2010.547","DOIUrl":"https://doi.org/10.1109/ICECE.2010.547","url":null,"abstract":"Quantitative ultrasound diagnosis of osteoporosis has become one of the most potential methods for measuring Bone Mineral Density (BMD) because of its advantages of low-cost, no radiation and high precision. With the method of pulse transmission, we develop a detection system of quantitative ultrasound parameters taking TMS320F2810 as the core, so high-speed data acquisition and synchronization of ultrasonic signals which are transmitted and received by the transceiving circuit can be achieved. The studying has detection the speed called SOS that ultrasound transmit in the bone. We can use the message of the detection above to diagnose and forecast the bone mass loss, osteoporosis from a new angle. Respectively experiment to this people of different age, then validated the correctness of system.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"96 1","pages":"2221-2224"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85781099","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}
A novel H∞ robust regenerative braking control strategy for electric vehicle (EV) is presented after different regenerative braking control strategies are discussed in this paper. Research work is done under different conditions namely variable battery voltage and variable load rotational inertia, separately. A comparison between conventional PID control and H∞ robust control is done when they are applied to the above mentioned conditions. Experimental results show that H∞ robust control has better performance than the traditional PID control both in steady-state tracking error and response speed.
{"title":"Experimental Research on H8 Control for Regenerative Braking of Electric Vehicle","authors":"Zhang Chuanwei","doi":"10.1109/ICECE.2010.239","DOIUrl":"https://doi.org/10.1109/ICECE.2010.239","url":null,"abstract":"A novel H∞ robust regenerative braking control strategy for electric vehicle (EV) is presented after different regenerative braking control strategies are discussed in this paper. Research work is done under different conditions namely variable battery voltage and variable load rotational inertia, separately. A comparison between conventional PID control and H∞ robust control is done when they are applied to the above mentioned conditions. Experimental results show that H∞ robust control has better performance than the traditional PID control both in steady-state tracking error and response speed.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"74 1","pages":"940-943"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85826020","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}
Cao Xie-dong, Feng Rong, Chi-Jen Huang, Mei Jian-yun, He Ye, Li Gang
Southwest Oil and Gas Field mainly emphasis on natural gas development, especially gas well with high sulfur content makes station detection and evaluation of the safety of pipeline particularly important. This study use guided wave and phased array ultrasonic[1] testing technology to perform Nondestructive Detection of Pipeline for four South stations of Sichuan gas field, finding 381 defects, meanwhile providing a complete set of technology for gas pipeline nondestructive detection system.
{"title":"Research on Gas Station of Pipeline for Nondestructive Testing Technology","authors":"Cao Xie-dong, Feng Rong, Chi-Jen Huang, Mei Jian-yun, He Ye, Li Gang","doi":"10.1109/ICECE.2010.416","DOIUrl":"https://doi.org/10.1109/ICECE.2010.416","url":null,"abstract":"Southwest Oil and Gas Field mainly emphasis on natural gas development, especially gas well with high sulfur content makes station detection and evaluation of the safety of pipeline particularly important. This study use guided wave and phased array ultrasonic[1] testing technology to perform Nondestructive Detection of Pipeline for four South stations of Sichuan gas field, finding 381 defects, meanwhile providing a complete set of technology for gas pipeline nondestructive detection system.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"63 1","pages":"1688-1691"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85895040","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}
Shaft diameter variation is the common procedure in construction of wellbore. Wall rock destruction will intensify with the change of shaft diameter. By modeling and simulation of the destruction in shaft diameter variation area which was changed quickly, it indicates that the mutation of surrounding rock mass and the stress concentration area is significantly larger than changed slowly, which was proved by mechanical analysis of the measured data.
{"title":"Study of Destruction Rule in Shaft Diameter Variation Area Based on FLAC3D","authors":"Ren Dawei, Gai Lili, Yang Ning","doi":"10.1109/ICECE.2010.1481","DOIUrl":"https://doi.org/10.1109/ICECE.2010.1481","url":null,"abstract":"Shaft diameter variation is the common procedure in construction of wellbore. Wall rock destruction will intensify with the change of shaft diameter. By modeling and simulation of the destruction in shaft diameter variation area which was changed quickly, it indicates that the mutation of surrounding rock mass and the stress concentration area is significantly larger than changed slowly, which was proved by mechanical analysis of the measured data.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"11 1","pages":"5899-5902"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78357823","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}
This paper has proposed an idea of designing target simulator using virtual instrument technology, points out the shortcomings in the original target simulator, uses fast look-up table method in the signal simulation algorithm, especially in the echo cosine calculation, shorts the processing time of computer, exerts software function in the instruments, while fully satisfies the requirement of simulator signal generation.
{"title":"Target Simulator Design Based on Virtual Instrument Technology","authors":"Guangnian Yang, Qichuan Yuan","doi":"10.1109/ICECE.2010.549","DOIUrl":"https://doi.org/10.1109/ICECE.2010.549","url":null,"abstract":"This paper has proposed an idea of designing target simulator using virtual instrument technology, points out the shortcomings in the original target simulator, uses fast look-up table method in the signal simulation algorithm, especially in the echo cosine calculation, shorts the processing time of computer, exerts software function in the instruments, while fully satisfies the requirement of simulator signal generation.","PeriodicalId":6419,"journal":{"name":"2010 International Conference on Electrical and Control Engineering","volume":"46 1","pages":"2228-2231"},"PeriodicalIF":0.0,"publicationDate":"2010-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77682033","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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