Pub Date : 2016-06-05DOI: 10.1109/ICIEA.2016.7604021
Jin Zhang, Guoli Li, Chao Xu, Deyang Shao, Long Jiao
The continuous expanding of power grid scale brings great a large number of nonlinear elements, which produce the harmonic problem. Discrete Fourier Transform(DFT) is an effective tool for harmonic analysis, but there are hidden the troubles of aliasing, picket fence effect and spectral leakage in DFT, which affect the accuracy of the harmonic analysis. In this paper, DFT has been improved to avoid spectral leakage. This improved algorithm has been experiment validated that it can effectively suppress spectral leakage, creates a balance between accuracy and complexity, and can be applied to a variety of devices.
{"title":"Study of harmonic analysis based on improved discrete Fourier transform","authors":"Jin Zhang, Guoli Li, Chao Xu, Deyang Shao, Long Jiao","doi":"10.1109/ICIEA.2016.7604021","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7604021","url":null,"abstract":"The continuous expanding of power grid scale brings great a large number of nonlinear elements, which produce the harmonic problem. Discrete Fourier Transform(DFT) is an effective tool for harmonic analysis, but there are hidden the troubles of aliasing, picket fence effect and spectral leakage in DFT, which affect the accuracy of the harmonic analysis. In this paper, DFT has been improved to avoid spectral leakage. This improved algorithm has been experiment validated that it can effectively suppress spectral leakage, creates a balance between accuracy and complexity, and can be applied to a variety of devices.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125771287","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603658
Puru Zhang, Qianfan Zhang
In this paper, rotor position and speed estimation method using hall-effect sensors for low-cost vector controller design is presented for Permanent Magnet Synchronous Motor (PMSM). Sensorless control and self-learning implementation was also realized based on theoretical analysis. Experimental results verified the feasibility of the proposed control strategies.
{"title":"A controller of PMSM for elctrical bicycle with hall effect sensors","authors":"Puru Zhang, Qianfan Zhang","doi":"10.1109/ICIEA.2016.7603658","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603658","url":null,"abstract":"In this paper, rotor position and speed estimation method using hall-effect sensors for low-cost vector controller design is presented for Permanent Magnet Synchronous Motor (PMSM). Sensorless control and self-learning implementation was also realized based on theoretical analysis. Experimental results verified the feasibility of the proposed control strategies.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127984706","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603949
Quan Zhang, Shaoping Wang, Jian Shi, Xingjian Wang, M. Tomovic
As an important component of the vacuum system, the performance of Roots Pump affects the reliability of the system. This paper selects the rotor wear fault mode as the research object, based on the establishment of Roots Pump's basic model, through the analysis on the failure mechanism, models the leakage, and finally establishes the Roots Pump's performance degradation model of leakage caused by rotor wear. Combined with the actual conditions, by using MATLAB and ANSYS to do the verified simulation, this paper tests the validity, accuracy and precision of the model, gets the degradation curve of Roots Pump's performance and predicts the start time and the failure time of the Roots Pump's performance degradation. This paper provides the theoretical basis for the maintenance and repair of the Roots Pump in the vacuum system.
{"title":"Performance degradation model of roots pump in vacuum system based on leakage of rotor wear","authors":"Quan Zhang, Shaoping Wang, Jian Shi, Xingjian Wang, M. Tomovic","doi":"10.1109/ICIEA.2016.7603949","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603949","url":null,"abstract":"As an important component of the vacuum system, the performance of Roots Pump affects the reliability of the system. This paper selects the rotor wear fault mode as the research object, based on the establishment of Roots Pump's basic model, through the analysis on the failure mechanism, models the leakage, and finally establishes the Roots Pump's performance degradation model of leakage caused by rotor wear. Combined with the actual conditions, by using MATLAB and ANSYS to do the verified simulation, this paper tests the validity, accuracy and precision of the model, gets the degradation curve of Roots Pump's performance and predicts the start time and the failure time of the Roots Pump's performance degradation. This paper provides the theoretical basis for the maintenance and repair of the Roots Pump in the vacuum system.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115923399","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603596
W. Cao, Yonghai Xu, Yashuai Han, B. Ren
Battery energy storage system(BESS) connected to the grid by power conversion system(PCS). Currently Cascaded Multilevel Converter(CMC) and Modular Multilevel Converter (MMC) are two more advanced topologies for PCS. This paper compares CMC and MMC topologies in aspects of efficiency, harmonic characteristics, reliability, control system complexity and cost, the simulation results are presented. Suggestions for topology suitable for large power output are proposed, which can be used as a reference for the design of large-capacity PCS.
{"title":"Comparison of cascaded multilevel and modular multilevel converters with energy storage system","authors":"W. Cao, Yonghai Xu, Yashuai Han, B. Ren","doi":"10.1109/ICIEA.2016.7603596","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603596","url":null,"abstract":"Battery energy storage system(BESS) connected to the grid by power conversion system(PCS). Currently Cascaded Multilevel Converter(CMC) and Modular Multilevel Converter (MMC) are two more advanced topologies for PCS. This paper compares CMC and MMC topologies in aspects of efficiency, harmonic characteristics, reliability, control system complexity and cost, the simulation results are presented. Suggestions for topology suitable for large power output are proposed, which can be used as a reference for the design of large-capacity PCS.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131447549","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603716
Charles Z. Liu, M. Kavakli
The goal of this paper is to address how to use human experience to develop an enhanced matting strategy. Based on a recursive α optimization framework, we present an adaptive fuzzy learning strategy for enhancement of matting. Taking into account the uncertainty of data, the proposed scheme successfully applies the expert human knowledge into matting. Experimental results are given to demonstrate the effect of the proposed method compared to some classical methods. The results indicate that the proposed adaptive learning algorithm handles uncertain pixels and perform stable matting.
{"title":"Fuzzy knowledge based enhanced matting","authors":"Charles Z. Liu, M. Kavakli","doi":"10.1109/ICIEA.2016.7603716","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603716","url":null,"abstract":"The goal of this paper is to address how to use human experience to develop an enhanced matting strategy. Based on a recursive α optimization framework, we present an adaptive fuzzy learning strategy for enhancement of matting. Taking into account the uncertainty of data, the proposed scheme successfully applies the expert human knowledge into matting. Experimental results are given to demonstrate the effect of the proposed method compared to some classical methods. The results indicate that the proposed adaptive learning algorithm handles uncertain pixels and perform stable matting.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131968121","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 growing dependence of critical infrastructures and industrial automation on smart grids has resulted in growing and unforeseen cyber security threatens to power systems. Identifying vulnerable nodes and analyzing the influence of undetectable attacks play an important role in defending cyber attacks. This paper aims to identify the nodes, at which attacks may occur but are not detectable based on the measurements for the power systems, and then further identify the vulnerable nodes by analyzing whether these undetectable attacks lead to damages to the power networks. Several algorithms are developed for these goals by considering the cases with a single attack, multiple simultaneous attacks, and persistent attacks. Finally, the algorithms are validated with the IEEE 3-machine 6-bus system.
{"title":"On identifying vulnerable nodes for power systems in the presence of undetectable cyber-attacks","authors":"Ting Zhao, Yun Xu, Yi-nan Wang, Zhiyun Lin, Wenyuan Xu, Qiang Yang","doi":"10.1109/ICIEA.2016.7603739","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603739","url":null,"abstract":"The growing dependence of critical infrastructures and industrial automation on smart grids has resulted in growing and unforeseen cyber security threatens to power systems. Identifying vulnerable nodes and analyzing the influence of undetectable attacks play an important role in defending cyber attacks. This paper aims to identify the nodes, at which attacks may occur but are not detectable based on the measurements for the power systems, and then further identify the vulnerable nodes by analyzing whether these undetectable attacks lead to damages to the power networks. Several algorithms are developed for these goals by considering the cases with a single attack, multiple simultaneous attacks, and persistent attacks. Finally, the algorithms are validated with the IEEE 3-machine 6-bus system.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130172259","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7604022
Guiying Song, Liu Da, Yuesheng Ling, Yanbin Tang
This paper deals with a master-slave control strategy for a ISOP (input-series and output-parallel) connected full-bridge DC-DC converter system, and each separate module is controlled by phase-shift control method. The master module regulates the output voltage of the whole system, and overcomes the problem of narrow range of output voltage regulation. The slave module balances input voltages between two modules. At the same time, the strategy has advantages of high flexibility and that it is easy to implement modularization, which is suitable for high input voltage and high power system. In this paper, the principle of phase-shift control method and the realization of master-slave control strategy are described. At last, the master-slave with phase-shift control strategy is verified by simulation.
{"title":"Master-slave with phase-shift control strategy for input-series and output-parallel full-bridge DC-DC converter system","authors":"Guiying Song, Liu Da, Yuesheng Ling, Yanbin Tang","doi":"10.1109/ICIEA.2016.7604022","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7604022","url":null,"abstract":"This paper deals with a master-slave control strategy for a ISOP (input-series and output-parallel) connected full-bridge DC-DC converter system, and each separate module is controlled by phase-shift control method. The master module regulates the output voltage of the whole system, and overcomes the problem of narrow range of output voltage regulation. The slave module balances input voltages between two modules. At the same time, the strategy has advantages of high flexibility and that it is easy to implement modularization, which is suitable for high input voltage and high power system. In this paper, the principle of phase-shift control method and the realization of master-slave control strategy are described. At last, the master-slave with phase-shift control strategy is verified by simulation.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133987277","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603628
B. Xiao, Zhengzhou Fu, Jia Yang, Chaofan Wu, Xing Huo
This paper investigates a difficult problem of retrofit reconfigurable control design that retains a baseline/nominal controller and, at the same time, accommodates actuator faults and uncertain dynamics so that the overall system is stable and the control objective is met. A theoretical retrofit control architecture is developed for a class of mechanical systems. This is accomplished using minimum prior information regarding the baseline/nominal controller. A reconstruction mechanism is firstly designed to precisely estimate system uncertainties and actuator fault. Using such reconstructed value, a retrofit control signal is generated as a compensation effort, and added to the nominal controller to compensate for uncertainties and faults. It is shown that the closed-loop system resulted from the proposed retrofit controller has the same properties of the nominal closed-loop system, which consists of the certain system dynamics and the dynamics of the nominal controller. The performance of this retrofit reconfigurable control design is verified with simulation results.
{"title":"Retrofit reconfigurable fault tolerant control for mechanical systems","authors":"B. Xiao, Zhengzhou Fu, Jia Yang, Chaofan Wu, Xing Huo","doi":"10.1109/ICIEA.2016.7603628","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603628","url":null,"abstract":"This paper investigates a difficult problem of retrofit reconfigurable control design that retains a baseline/nominal controller and, at the same time, accommodates actuator faults and uncertain dynamics so that the overall system is stable and the control objective is met. A theoretical retrofit control architecture is developed for a class of mechanical systems. This is accomplished using minimum prior information regarding the baseline/nominal controller. A reconstruction mechanism is firstly designed to precisely estimate system uncertainties and actuator fault. Using such reconstructed value, a retrofit control signal is generated as a compensation effort, and added to the nominal controller to compensate for uncertainties and faults. It is shown that the closed-loop system resulted from the proposed retrofit controller has the same properties of the nominal closed-loop system, which consists of the certain system dynamics and the dynamics of the nominal controller. The performance of this retrofit reconfigurable control design is verified with simulation results.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131551644","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603953
W. Rehman, Shaoping Wang, Xingjian Wang, Cun Shi, Chao Zhang, M. Tomovic
This paper presents a model reference adaptive control for dissimilar dual redundant actuation system that is a combination of hydraulic and electro-hydrostatic actuator. A modified form of MIT rule, called the normalized MIT rule, has been given to find the controller parameters. The reference model is designed on the base of dynamics characteristics of HA. Normalized MIT rule updates the parameter of the controller in such a way that the both actuators follow reference model to reduce force fighting. To assist the model reference controller to improve synchronization and rejection performance, a PID control is used that take into account inherent coupling effect. The proposed strategy not only remove initial force fighting, but also improve load rejection performance of the actuation system.
{"title":"Adaptive control for motion synchronization of HA/EHA system by using modified MIT rule","authors":"W. Rehman, Shaoping Wang, Xingjian Wang, Cun Shi, Chao Zhang, M. Tomovic","doi":"10.1109/ICIEA.2016.7603953","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603953","url":null,"abstract":"This paper presents a model reference adaptive control for dissimilar dual redundant actuation system that is a combination of hydraulic and electro-hydrostatic actuator. A modified form of MIT rule, called the normalized MIT rule, has been given to find the controller parameters. The reference model is designed on the base of dynamics characteristics of HA. Normalized MIT rule updates the parameter of the controller in such a way that the both actuators follow reference model to reduce force fighting. To assist the model reference controller to improve synchronization and rejection performance, a PID control is used that take into account inherent coupling effect. The proposed strategy not only remove initial force fighting, but also improve load rejection performance of the actuation system.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131764645","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 : 2016-06-05DOI: 10.1109/ICIEA.2016.7603634
Faqiang Wang, Jing Li
High step-up converter, which is constructed by the charged pump and Boost converter, is a good topology since it possesses a high voltage conversion ratio and a good and robust performance of regulation. This paper contributes to establish the improved small signal model of this high step-up converter and analyze its dynamical behaviors. By taking into account of the abruptly changing on the voltage across the charge pump capacitor and the relationship between the two inductor currents, the improved small signal model which overcomes the drawbacks of its existing small signal models is derived. Its input-to-output transfer function is obtained and validated preliminary by PSIM simulations. Finally, the circuit experiments are presented for confirmation.
{"title":"Improved small signal modeling and dynamic analysis of high step-up converter with charged pump and Boost converter","authors":"Faqiang Wang, Jing Li","doi":"10.1109/ICIEA.2016.7603634","DOIUrl":"https://doi.org/10.1109/ICIEA.2016.7603634","url":null,"abstract":"High step-up converter, which is constructed by the charged pump and Boost converter, is a good topology since it possesses a high voltage conversion ratio and a good and robust performance of regulation. This paper contributes to establish the improved small signal model of this high step-up converter and analyze its dynamical behaviors. By taking into account of the abruptly changing on the voltage across the charge pump capacitor and the relationship between the two inductor currents, the improved small signal model which overcomes the drawbacks of its existing small signal models is derived. Its input-to-output transfer function is obtained and validated preliminary by PSIM simulations. Finally, the circuit experiments are presented for confirmation.","PeriodicalId":283114,"journal":{"name":"2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125206164","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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