Pub Date : 2017-10-01DOI: 10.1109/IECON.2017.8217546
Weipeng Yang, Hang Zhang, Jianhua Wang, Aimin Zhang, Z. Wang
In this paper, a robust current control strategy for three-phase voltage source rectifier (VSR) under unbalanced input voltage conditions is proposed. In the strategy, dual current control structure with current regulation performed in positive and negative sequence (PNS) synchronous reference frame (SRF) is used and negative sequence current compensation is adopted to attain constant dc link voltage and sinusoidal ac line current. With regard to the current control law, power and flexibility of sliding mode control (SMC) and the Lyapunov stability theory is fully exploited and an enhanced SMC with integral action in both the sliding manifold and control law (ISMC) is obtained to solve the non-zero steady state error problem that faced in practice by conventional SMC (CSMC). As such, satisfactory performance can be obtained and system robustness can be guaranteed in the Lyapunov sense, in the presence of uncertainties with known bounds. Effectiveness of the ISMC current control strategy is verified through simulation and comparative study on a VSR model with MATLAB/SIMULINK.
{"title":"Integral sliding mode current control for three phase voltage source rectifier under unbalanced input voltage conditions","authors":"Weipeng Yang, Hang Zhang, Jianhua Wang, Aimin Zhang, Z. Wang","doi":"10.1109/IECON.2017.8217546","DOIUrl":"https://doi.org/10.1109/IECON.2017.8217546","url":null,"abstract":"In this paper, a robust current control strategy for three-phase voltage source rectifier (VSR) under unbalanced input voltage conditions is proposed. In the strategy, dual current control structure with current regulation performed in positive and negative sequence (PNS) synchronous reference frame (SRF) is used and negative sequence current compensation is adopted to attain constant dc link voltage and sinusoidal ac line current. With regard to the current control law, power and flexibility of sliding mode control (SMC) and the Lyapunov stability theory is fully exploited and an enhanced SMC with integral action in both the sliding manifold and control law (ISMC) is obtained to solve the non-zero steady state error problem that faced in practice by conventional SMC (CSMC). As such, satisfactory performance can be obtained and system robustness can be guaranteed in the Lyapunov sense, in the presence of uncertainties with known bounds. Effectiveness of the ISMC current control strategy is verified through simulation and comparative study on a VSR model with MATLAB/SIMULINK.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"27 1","pages":"8796-8801"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74886169","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216821
Seyed Hamid, Montazeri Hedesh, M. Zolghadri
In this paper a novel and fast open-circuit fault detection and localization method is proposed for Five-level active-neutral-point-clamped (5L-ANPC) converter. The method is based on comparing the measured output voltage with the reference voltage and the voltage obtained from the fault analysis. The implementation scheme of the method is presented; and all the practical aspects including capacitors voltage ripple and system delays are considered. The implementation of the method needs no additional sensor, measurement and processor board. The performance of the proposed method is verified by numerical simulation of a five-level converter. The results confirm the effectiveness and accurate operation of the method for fault detection and localization.
{"title":"Open-circuit fault detection and localization in five-level active NPC converter","authors":"Seyed Hamid, Montazeri Hedesh, M. Zolghadri","doi":"10.1109/IECON.2017.8216821","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216821","url":null,"abstract":"In this paper a novel and fast open-circuit fault detection and localization method is proposed for Five-level active-neutral-point-clamped (5L-ANPC) converter. The method is based on comparing the measured output voltage with the reference voltage and the voltage obtained from the fault analysis. The implementation scheme of the method is presented; and all the practical aspects including capacitors voltage ripple and system delays are considered. The implementation of the method needs no additional sensor, measurement and processor board. The performance of the proposed method is verified by numerical simulation of a five-level converter. The results confirm the effectiveness and accurate operation of the method for fault detection and localization.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"10 1","pages":"4763-4768"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75343650","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 : 2017-10-01DOI: 10.1109/IECON.2017.8217300
Minshao Zhu, Suyue Lu, Haibo Du, Z. Zhu
Based on the production system of high functional plastic production areas, the authors design an information acquisition system based on OLE for Process Control (OPC) technology. The system achieves the bottom information and uploads to the management layer. It uses a combination of Ethernet and serial communication to connect field equipment. Through hardware manufacturer provides the OPC Server interface to save real time information of the production equipment in real-time database of the industrial configuration software. On the basis of this, the upper application system is flexible to access the field devices through OPC Client, gathering and managing real-time information. The production practice shows that the system is not only safe and reliable communication, rapid data collection and processing, but also constantly update and extend the functionality in the future, to satisfy the business enterprises to the higher requirements of the production.
{"title":"Design and application of field equipment information acquisition system based on OPC","authors":"Minshao Zhu, Suyue Lu, Haibo Du, Z. Zhu","doi":"10.1109/IECON.2017.8217300","DOIUrl":"https://doi.org/10.1109/IECON.2017.8217300","url":null,"abstract":"Based on the production system of high functional plastic production areas, the authors design an information acquisition system based on OLE for Process Control (OPC) technology. The system achieves the bottom information and uploads to the management layer. It uses a combination of Ethernet and serial communication to connect field equipment. Through hardware manufacturer provides the OPC Server interface to save real time information of the production equipment in real-time database of the industrial configuration software. On the basis of this, the upper application system is flexible to access the field devices through OPC Client, gathering and managing real-time information. The production practice shows that the system is not only safe and reliable communication, rapid data collection and processing, but also constantly update and extend the functionality in the future, to satisfy the business enterprises to the higher requirements of the production.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"47 1","pages":"7422-7426"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75578061","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216091
Jie Zeng, Junlin Li, F. Leng, Boya Peng, Xun Chen, C. Mao, Dan Wang
Digital-physical hybrid real-time simulation is considered to be an advanced method for future power system simulation. However, the physical interface will inevitably exist DC component, which causes negative effects on practical applications, such as degradation of simulation performance, damage to physical equipment, etc. A novel DC component elimination control strategy for the digital-physical hybrid real-time simulation is proposed in this paper, to improve the performance of the interface system and the precision of simulation results. Based on a universal power interface scheme, the voltage control strategy of the physical interface and the characteristics of the output DC component are analyzed. Aiming at the particularity of hybrid simulation, i.e., the DC component is supposed to be eliminated during steady state but reserved during transient state, an improved voltage control strategy integrating DC component elimination is proposed for the invert link of the physical interface. The proposed control strategy was proved to be effective by experiments of digital-physical hybrid real-time simulation.
{"title":"A DC component elimination control strategy for the interface system of digital-physical hybrid real-time simulation","authors":"Jie Zeng, Junlin Li, F. Leng, Boya Peng, Xun Chen, C. Mao, Dan Wang","doi":"10.1109/IECON.2017.8216091","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216091","url":null,"abstract":"Digital-physical hybrid real-time simulation is considered to be an advanced method for future power system simulation. However, the physical interface will inevitably exist DC component, which causes negative effects on practical applications, such as degradation of simulation performance, damage to physical equipment, etc. A novel DC component elimination control strategy for the digital-physical hybrid real-time simulation is proposed in this paper, to improve the performance of the interface system and the precision of simulation results. Based on a universal power interface scheme, the voltage control strategy of the physical interface and the characteristics of the output DC component are analyzed. Aiming at the particularity of hybrid simulation, i.e., the DC component is supposed to be eliminated during steady state but reserved during transient state, an improved voltage control strategy integrating DC component elimination is proposed for the invert link of the physical interface. The proposed control strategy was proved to be effective by experiments of digital-physical hybrid real-time simulation.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"7 1","pages":"515-520"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75701378","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216911
M. Porru, A. Serpi, A. Lai, G. Gatto, A. Damiano
Modelling, sizing and control of a Hybrid Energy Storage System (HESS) made up of Batteries (B) and Supercapacitors (S) is presented in this paper. The HESS is characterized by an integrated topology through a Three-level Neutral-Point Clamped Converter (NPC), leading to a highly-integrated electric propulsion system. Accurate modelling of both B and S are considered at first, although some simplifications are introduced due to automotive application. Then, a suitable sizing procedure is introduced and discussed in detail, which is based also on an experimental S characterization. The HESS control approach is described as well, which is quite robust against the non-linear model of S due to the integrated topology. The effectiveness of all the design solutions has been validated through a simulation study, which refers to a vehicle start and stop.
{"title":"Modelling, sizing and control of hybrid energy storage systems for electric vehicles","authors":"M. Porru, A. Serpi, A. Lai, G. Gatto, A. Damiano","doi":"10.1109/IECON.2017.8216911","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216911","url":null,"abstract":"Modelling, sizing and control of a Hybrid Energy Storage System (HESS) made up of Batteries (B) and Supercapacitors (S) is presented in this paper. The HESS is characterized by an integrated topology through a Three-level Neutral-Point Clamped Converter (NPC), leading to a highly-integrated electric propulsion system. Accurate modelling of both B and S are considered at first, although some simplifications are introduced due to automotive application. Then, a suitable sizing procedure is introduced and discussed in detail, which is based also on an experimental S characterization. The HESS control approach is described as well, which is quite robust against the non-linear model of S due to the integrated topology. The effectiveness of all the design solutions has been validated through a simulation study, which refers to a vehicle start and stop.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"30 1","pages":"5260-5265"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75725733","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216532
Yulin Si, L. Qian, Baijin Mao, Dahai Zhang
Compared with onshore wind turbines, fault detection and isolation (FDI) process is more important for offshore ones due to both additional loadings and maintenance difficulties. FDI will be more demanding when it comes to deep-sea floating wind turbines. In this work, an ensemble learning method, random forests (RF), is proposed to perform fault detection of offshore wind turbines, as RF is robust to overfitting, producing not only accurate and quick classification, but also importance ranking for each individual feature. At the same time, supplementary dominant signals are determined for each fault through principal component analysis. The NREL FASTv8 code and OC3-Hywind 5MW floating wind turbine baseline model are used to verify this proposed data-driven FDI design.
{"title":"A data-driven approach for fault detection of offshore wind turbines using random forests","authors":"Yulin Si, L. Qian, Baijin Mao, Dahai Zhang","doi":"10.1109/IECON.2017.8216532","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216532","url":null,"abstract":"Compared with onshore wind turbines, fault detection and isolation (FDI) process is more important for offshore ones due to both additional loadings and maintenance difficulties. FDI will be more demanding when it comes to deep-sea floating wind turbines. In this work, an ensemble learning method, random forests (RF), is proposed to perform fault detection of offshore wind turbines, as RF is robust to overfitting, producing not only accurate and quick classification, but also importance ranking for each individual feature. At the same time, supplementary dominant signals are determined for each fault through principal component analysis. The NREL FASTv8 code and OC3-Hywind 5MW floating wind turbine baseline model are used to verify this proposed data-driven FDI design.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"19 1","pages":"3149-3154"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73690311","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 increasing new product variants force the manufacturing enterprise to take a short time in adjusting the automatic assembly line rapidly, but it seems a challenging task. Realizing integration of information technology and manufacturing technology is the very essence of new manufacturing schema. This paper introduces an ontology-based modeling and application method to test the feasibility of manufacturing system. This work uses the SPARQL query and update technology to reflect the accurate entities' state and obtain device information. The predefined rules are used to build the corresponding rule repository according to the practical product process and knowledge base. A reasoning engine is utilized to infer facts about the assembling environment from the formalized knowledge model and decide whether the current environment can support the given assembling requirements. The result shows the ontology technology is useful for the assembly line of manufacturing system.
{"title":"An ontology modeling and application for an assembly line of manufacturing system","authors":"Lingling Xue, Peng Wang, Haibo Cheng, Xing Tong, P. Zeng, Haibin Yu","doi":"10.1109/IECON.2017.8216938","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216938","url":null,"abstract":"The increasing new product variants force the manufacturing enterprise to take a short time in adjusting the automatic assembly line rapidly, but it seems a challenging task. Realizing integration of information technology and manufacturing technology is the very essence of new manufacturing schema. This paper introduces an ontology-based modeling and application method to test the feasibility of manufacturing system. This work uses the SPARQL query and update technology to reflect the accurate entities' state and obtain device information. The predefined rules are used to build the corresponding rule repository according to the practical product process and knowledge base. A reasoning engine is utilized to infer facts about the assembling environment from the formalized knowledge model and decide whether the current environment can support the given assembling requirements. The result shows the ontology technology is useful for the assembly line of manufacturing system.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"12 1","pages":"5414-5419"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74211323","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216119
S. Kolluri, N. Gorla, Rajesh Sapkota, S. K. Panda
A modular multilevel converter (MMC) with traditional cascaded PI control structure suffers from poor steady state and dynamic performance. This is due to the limited harmonic rejection capability of PI controller thus failing to alleviate even order harmonics in circulating current and due to the slower outer average voltage control loop resulting in significant deviation in submodule capacitor voltages during load transients. This paper presents a new control structure with a repetitive controller (RC) in conjunction with a Lyapunov function-based controller (LFC) in the inner circulating current loop and an additional load current feed forward loop in addition to the outer voltage loop to improve both steady-state and dynamic performance of MMC. RC has a good steady-state harmonic suppression capability therefore can effectively alleviate the circulating harmonic currents, where as LFC ensures a stable operation and superior dynamic performance of the converter against load disturbances. Analytical equations governing the design of both the controllers are presented. Model of a single phase, 5-level MMC is developed on a PLECS RT box real-time simulator for hardware-in-the-loop (HIL) testing, it operates along with the external Texas Instruments DSP controller hosting the developed control scheme. Real-time simulation results are presented to substantiate the improvement in steady state and dynamic performance of MMC with the proposed repetitive and Lyapunov function based circulating current controller.
{"title":"A repetitive and Lyapunov function-based control approach for improved steady state and dynamic performance of modular multilevel converters","authors":"S. Kolluri, N. Gorla, Rajesh Sapkota, S. K. Panda","doi":"10.1109/IECON.2017.8216119","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216119","url":null,"abstract":"A modular multilevel converter (MMC) with traditional cascaded PI control structure suffers from poor steady state and dynamic performance. This is due to the limited harmonic rejection capability of PI controller thus failing to alleviate even order harmonics in circulating current and due to the slower outer average voltage control loop resulting in significant deviation in submodule capacitor voltages during load transients. This paper presents a new control structure with a repetitive controller (RC) in conjunction with a Lyapunov function-based controller (LFC) in the inner circulating current loop and an additional load current feed forward loop in addition to the outer voltage loop to improve both steady-state and dynamic performance of MMC. RC has a good steady-state harmonic suppression capability therefore can effectively alleviate the circulating harmonic currents, where as LFC ensures a stable operation and superior dynamic performance of the converter against load disturbances. Analytical equations governing the design of both the controllers are presented. Model of a single phase, 5-level MMC is developed on a PLECS RT box real-time simulator for hardware-in-the-loop (HIL) testing, it operates along with the external Texas Instruments DSP controller hosting the developed control scheme. Real-time simulation results are presented to substantiate the improvement in steady state and dynamic performance of MMC with the proposed repetitive and Lyapunov function based circulating current controller.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"25 1","pages":"687-692"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74335307","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 : 2017-10-01DOI: 10.1109/IECON.2017.8217405
Zhuangliang Chen, Yanfeng Chen, Chao Jiang, Bo Zhang, D. Qiu
This paper proposes a novel quasi-Z source network with multiple switch-inductor (SL) cells and Cockroft-walton (CW) voltage multipliers. The proposed topology can further enhance the boost ability as the increasing of the count of the cascaded SL cells and CW cells. The utilization of CW cells at the output side can greatly reduce the voltage stress of the diodes and active switch, which makes the topology more suitable for dc-dc power conversion where higher gain and lower voltage stress are demanded. The performance of the topology is analyzed and a scale-down 180 W prototype is implemented to verify the theoretical analysis.
{"title":"A quasi-Z source network with multiple switch-inductor cells and Cockroft-walton voltage multipliers","authors":"Zhuangliang Chen, Yanfeng Chen, Chao Jiang, Bo Zhang, D. Qiu","doi":"10.1109/IECON.2017.8217405","DOIUrl":"https://doi.org/10.1109/IECON.2017.8217405","url":null,"abstract":"This paper proposes a novel quasi-Z source network with multiple switch-inductor (SL) cells and Cockroft-walton (CW) voltage multipliers. The proposed topology can further enhance the boost ability as the increasing of the count of the cascaded SL cells and CW cells. The utilization of CW cells at the output side can greatly reduce the voltage stress of the diodes and active switch, which makes the topology more suitable for dc-dc power conversion where higher gain and lower voltage stress are demanded. The performance of the topology is analyzed and a scale-down 180 W prototype is implemented to verify the theoretical analysis.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"44 1","pages":"8009-8014"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78626948","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 : 2017-10-01DOI: 10.1109/IECON.2017.8216060
Yansong Li, Bing Wang, Jun Liu
The sensing characteristic of fiber optical current transformer(FOCT) is affected by linear birefringence. In this paper, evolution process of optical polarization is derived and linear birefringence's influence on sensing characteristic of FOCT is analyzed in essence. Phase difference of light field components during transmission process is resulted by wave vector's inequality in non-propagating direction. As a result, linear birefringence is created and optical rotation angle of FOCT is decreased. Calculation method of FOCT's optical rotation angle is realized with decoupling of Faraday effect and linear birefringence. By using COMSOL, sensing optical fiber's micro-element model of FOCT is established. Coupling of optical field and magnetic field is realized with finite element method. Besides, FOCT's optical rotation angle is obtained. Finally, experiment platform of FOCT is designed and set up. The correctness of the theoretical analysis is verified by the results of simulation and experiment.
{"title":"Modeling and analysis on the sensing characteristic of fiber optical current transformer","authors":"Yansong Li, Bing Wang, Jun Liu","doi":"10.1109/IECON.2017.8216060","DOIUrl":"https://doi.org/10.1109/IECON.2017.8216060","url":null,"abstract":"The sensing characteristic of fiber optical current transformer(FOCT) is affected by linear birefringence. In this paper, evolution process of optical polarization is derived and linear birefringence's influence on sensing characteristic of FOCT is analyzed in essence. Phase difference of light field components during transmission process is resulted by wave vector's inequality in non-propagating direction. As a result, linear birefringence is created and optical rotation angle of FOCT is decreased. Calculation method of FOCT's optical rotation angle is realized with decoupling of Faraday effect and linear birefringence. By using COMSOL, sensing optical fiber's micro-element model of FOCT is established. Coupling of optical field and magnetic field is realized with finite element method. Besides, FOCT's optical rotation angle is obtained. Finally, experiment platform of FOCT is designed and set up. The correctness of the theoretical analysis is verified by the results of simulation and experiment.","PeriodicalId":13098,"journal":{"name":"IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society","volume":"313 1","pages":"333-338"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77254138","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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