Pub Date : 2016-11-03DOI: 10.1109/IPEMC.2016.7512814
Markus Andresen, L. Costa, G. Buticchi, Marco Liserre
The application of the Smart Transformer (ST) in the electrical distribution system follows the trend to install more intelligent devices in the grid. In competition with the traditional transformer, the winning argument of the ST can be the grid services, while the system needs to be designed for the targets of high efficiency, high reliability and high availability. This work proposes a modular ST design, which uses power semiconductors rated for lower current and voltage for high efficiency, while the reliability and the availability are targeted by directly routing the power within the modular system. An overview is given on promising modular ST architectures and the concept of power routing for improved reliability is presented.
{"title":"Smart Transformer reliability and efficiency through modularity","authors":"Markus Andresen, L. Costa, G. Buticchi, Marco Liserre","doi":"10.1109/IPEMC.2016.7512814","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512814","url":null,"abstract":"The application of the Smart Transformer (ST) in the electrical distribution system follows the trend to install more intelligent devices in the grid. In competition with the traditional transformer, the winning argument of the ST can be the grid services, while the system needs to be designed for the targets of high efficiency, high reliability and high availability. This work proposes a modular ST design, which uses power semiconductors rated for lower current and voltage for high efficiency, while the reliability and the availability are targeted by directly routing the power within the modular system. An overview is given on promising modular ST architectures and the concept of power routing for improved reliability is presented.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"942 1","pages":"3241-3248"},"PeriodicalIF":0.0,"publicationDate":"2016-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77565826","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512492
Liupeng Xue, Chuanlin Zhang, Hui Li, Shuaipeng He
This paper deals with the problem of active uncertainty attenuation control for the electric power stage in Fuel Cell Supercapacitor (FC-SC) hybrid electric vehicles subject to components uncertainties and load variations. A composite control strategy is adopted to estimate and compensate the mismatched lumped disturbances via a nonlinear disturbance observer. An active uncertainty attenuation controller is constructed by means of the backstepping recursive design method combined with Lyapunov stability theory to control the DC bus voltage. The rigorous stability analysis and numerical simulation results demonstrate that the DC bus voltage can track its desired value in a satisfactory precision and will perform a strong robustness against the involved parameters variations.
{"title":"Active uncertainty attenuation control for electric power stage in FC-SC hybrid electric vehicles","authors":"Liupeng Xue, Chuanlin Zhang, Hui Li, Shuaipeng He","doi":"10.1109/IPEMC.2016.7512492","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512492","url":null,"abstract":"This paper deals with the problem of active uncertainty attenuation control for the electric power stage in Fuel Cell Supercapacitor (FC-SC) hybrid electric vehicles subject to components uncertainties and load variations. A composite control strategy is adopted to estimate and compensate the mismatched lumped disturbances via a nonlinear disturbance observer. An active uncertainty attenuation controller is constructed by means of the backstepping recursive design method combined with Lyapunov stability theory to control the DC bus voltage. The rigorous stability analysis and numerical simulation results demonstrate that the DC bus voltage can track its desired value in a satisfactory precision and will perform a strong robustness against the involved parameters variations.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"37 1","pages":"1382-1388"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81200965","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512726
Yu Fang, Songyin Cao, Yong Xie, P. Wheeler
It will be one of the most important content to take the electric vehicle batteries as distributed energy storage units which can accept the power dispatching, and now bidirectional charger is the key power electronic device that has been used to connect power grid to the electric vehicle battery. In this paper, a two-stage bidirectional power converter made up of T-type neutral point clamped (NPC) three-phase three-level (TL) AC/DC and dual active bridge (DAB) DC/DC is studied, And the direct power control strategy is adopted to accept power dispatching from power grid. With high reliability, efficiency and high power quality as the goal, a novel space vector modulation (SVPWM) is proposed to avoid the terminal voltage distortion of bridge legs, and the series-parallel-connection DAB converter is presented to further improve efficiency. Finally, experimental results verify the feasibility of circuit topology and control strategy.
{"title":"Study on bidirectional-charger for electric vehicle applied to power dispatching in smart grid","authors":"Yu Fang, Songyin Cao, Yong Xie, P. Wheeler","doi":"10.1109/IPEMC.2016.7512726","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512726","url":null,"abstract":"It will be one of the most important content to take the electric vehicle batteries as distributed energy storage units which can accept the power dispatching, and now bidirectional charger is the key power electronic device that has been used to connect power grid to the electric vehicle battery. In this paper, a two-stage bidirectional power converter made up of T-type neutral point clamped (NPC) three-phase three-level (TL) AC/DC and dual active bridge (DAB) DC/DC is studied, And the direct power control strategy is adopted to accept power dispatching from power grid. With high reliability, efficiency and high power quality as the goal, a novel space vector modulation (SVPWM) is proposed to avoid the terminal voltage distortion of bridge legs, and the series-parallel-connection DAB converter is presented to further improve efficiency. Finally, experimental results verify the feasibility of circuit topology and control strategy.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"37 1","pages":"2709-2713"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84774548","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512411
Hengyang Luo, H. Wen, Xingshuo Li
The performance of series connected PV panels significantly limited by the current mismatch caused by the partial shading. Distributed maximum power point tracking can increase the overall efficiency. A module level and a string level sub-module integrated maximum power point trackers are presented in this thesis. The module level version is supposed to be applied for high power PV modules. For low power PV modules or strings, the string level trackers are recommended. The application cost of the string level MPP trackers is limited by mounting the size minimized synchronous buck converters directly into the junction boxes on the back of the PV panels. Two steps hill climbing method is applied to track the MPP of each sub-module by sampling and maximizing the output voltage of each sub-module. The global MPP relies on the inherent MPP tracking function of the output side connected inverter. Through the simulation of the system built in Simulink, the feasibility is verified fist. Then the performance of proposed architecture is tested through experiment.
{"title":"Distributed MPPT control under partial shading condition","authors":"Hengyang Luo, H. Wen, Xingshuo Li","doi":"10.1109/IPEMC.2016.7512411","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512411","url":null,"abstract":"The performance of series connected PV panels significantly limited by the current mismatch caused by the partial shading. Distributed maximum power point tracking can increase the overall efficiency. A module level and a string level sub-module integrated maximum power point trackers are presented in this thesis. The module level version is supposed to be applied for high power PV modules. For low power PV modules or strings, the string level trackers are recommended. The application cost of the string level MPP trackers is limited by mounting the size minimized synchronous buck converters directly into the junction boxes on the back of the PV panels. Two steps hill climbing method is applied to track the MPP of each sub-module by sampling and maximizing the output voltage of each sub-module. The global MPP relies on the inherent MPP tracking function of the output side connected inverter. Through the simulation of the system built in Simulink, the feasibility is verified fist. Then the performance of proposed architecture is tested through experiment.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"73 1","pages":"928-932"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89817649","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512901
Reza Barzegarkhoo, H. M. Kojabadi, Bagher Karami, Liuchen Chang
In this paper, a new scheme of charge balancing control method for a practical multilevel inverter (MLI) structure which is able to generate 9-level of output voltage with only one required dc voltage source is presented. The analyzed MLI's topology is made of using four series-connected capacitors paralleled by single dc power supply besides three bi-directional and four unidirectional power switches. Regarding the proposed method, in order to keep the across voltage of capacitors at the expected value, two operating switching modes (main and auxiliary modes) based on fundamental switching frequency are defined in which they are applied to the gate of power switches for a specific time duration and therefore they can obviate the discharging problem without aiming any extra charge balancing circuits or complicated modulation strategy. Several simulation results based on MATLAB/SIMULINK software are given to confirm the correct performance of proposed method.
{"title":"A novel charge balancing control approach for a single phase 9-level inverter based on fundamental modulation strategy","authors":"Reza Barzegarkhoo, H. M. Kojabadi, Bagher Karami, Liuchen Chang","doi":"10.1109/IPEMC.2016.7512901","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512901","url":null,"abstract":"In this paper, a new scheme of charge balancing control method for a practical multilevel inverter (MLI) structure which is able to generate 9-level of output voltage with only one required dc voltage source is presented. The analyzed MLI's topology is made of using four series-connected capacitors paralleled by single dc power supply besides three bi-directional and four unidirectional power switches. Regarding the proposed method, in order to keep the across voltage of capacitors at the expected value, two operating switching modes (main and auxiliary modes) based on fundamental switching frequency are defined in which they are applied to the gate of power switches for a specific time duration and therefore they can obviate the discharging problem without aiming any extra charge balancing circuits or complicated modulation strategy. Several simulation results based on MATLAB/SIMULINK software are given to confirm the correct performance of proposed method.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"12 1","pages":"3791-3796"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91361238","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512621
Tao Zhao, Jianhui Su, Jianguo Wang, D. Xu, J. Afsharian
A novel control strategy and commutation method for Isolated Matrix Rectifier is proposed in this paper. The proposed control and commutation strategy based on the sector which the reference space vector is decided without any other current sensors. The logic of commutation is more simply and the procedure of commutation is shorter compared with conventional 4-step commutation. Because of the shorter procedure of commutation, the proposed commutation had less impact for the input current of matrix converter and less THD in grid side.
{"title":"A novel control strategy and commutation method for Isolated Matrix Rectifier","authors":"Tao Zhao, Jianhui Su, Jianguo Wang, D. Xu, J. Afsharian","doi":"10.1109/IPEMC.2016.7512621","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512621","url":null,"abstract":"A novel control strategy and commutation method for Isolated Matrix Rectifier is proposed in this paper. The proposed control and commutation strategy based on the sector which the reference space vector is decided without any other current sensors. The logic of commutation is more simply and the procedure of commutation is shorter compared with conventional 4-step commutation. Because of the shorter procedure of commutation, the proposed commutation had less impact for the input current of matrix converter and less THD in grid side.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"68 1","pages":"2103-2107"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78317655","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512692
Cheol-Ju Bae, Sang-Min Lee, Dong-Choon Lee
In this paper, a novel on-line diagnosis method for multiple IGBT open-circuit faults of three-phase PWM inverters is proposed. That fault detection is based on monitoring the dwelling time of the current vector in each sector of the α-β stationary reference frame, which guarantees the robustness against false alarms. The identification process is based on the information of phase currents, which allows the diagnosis of multiple faults. The proposed diagnosis scheme is implemented without any extra hardware. The validity of the proposed diagnosis algorithm have been verified by experimental results.
{"title":"Diagnosis of multiple IGBT open-circuit faults for three-phase PWM inverters","authors":"Cheol-Ju Bae, Sang-Min Lee, Dong-Choon Lee","doi":"10.1109/IPEMC.2016.7512692","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512692","url":null,"abstract":"In this paper, a novel on-line diagnosis method for multiple IGBT open-circuit faults of three-phase PWM inverters is proposed. That fault detection is based on monitoring the dwelling time of the current vector in each sector of the α-β stationary reference frame, which guarantees the robustness against false alarms. The identification process is based on the information of phase currents, which allows the diagnosis of multiple faults. The proposed diagnosis scheme is implemented without any extra hardware. The validity of the proposed diagnosis algorithm have been verified by experimental results.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"27 1","pages":"2504-2509"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84462183","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512446
J. Zakis, A. Suzdalenko, Nataraj Barath, O. Husev
This paper presents a 3-level neutral-point-clamped high boost transformerless dc-ac converter for dual photovoltaic applications. General operation waveforms and operation principles are described. Basic processes involved and converter dimensions result from the steady state analysis and the calculation of general component values. Theoretical assumptions are verified by PSIM. Simulation results show the general operation principles and waveforms of the proposed converter. Finally, main areas of application of the converter and the efficiency achievable are discussed.
{"title":"Transformerless cuk derived high boost DC-AC converter for dual PV applications simulation study","authors":"J. Zakis, A. Suzdalenko, Nataraj Barath, O. Husev","doi":"10.1109/IPEMC.2016.7512446","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512446","url":null,"abstract":"This paper presents a 3-level neutral-point-clamped high boost transformerless dc-ac converter for dual photovoltaic applications. General operation waveforms and operation principles are described. Basic processes involved and converter dimensions result from the steady state analysis and the calculation of general component values. Theoretical assumptions are verified by PSIM. Simulation results show the general operation principles and waveforms of the proposed converter. Finally, main areas of application of the converter and the efficiency achievable are discussed.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"250 1","pages":"1128-1133"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80569195","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512373
L. Yao, Jing Wu, Lie Xu, M. Rahman
DC grid technology is one of the effective methods for collecting, transmitting and accommodating large-scale renewable energy over long-distance. Voltage source converter (VSC) based DC grid technology has become a preferred technical scheme because of its inherent advantages, such as flexible bi-directional DC power control capability. However, VSC based DC grid is also facing many operation control and protection problems to be solved, especially the problem of fault protection for the DC grid. This paper first analyzed the fault characteristics of the DC grid, and then through a typical DC grid configuration, a zone protection strategy is proposed with the objective of using a minimum number of DCCBs. The simulation results using MATLAB/Simulink platform show that the zone protection strategy is feasible and effective. The study in this paper provides a technical reference for the research and development of fault protection and isolation for DC grid in the future.
{"title":"Studies of coordinated zone protection strategy for DC grid","authors":"L. Yao, Jing Wu, Lie Xu, M. Rahman","doi":"10.1109/IPEMC.2016.7512373","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512373","url":null,"abstract":"DC grid technology is one of the effective methods for collecting, transmitting and accommodating large-scale renewable energy over long-distance. Voltage source converter (VSC) based DC grid technology has become a preferred technical scheme because of its inherent advantages, such as flexible bi-directional DC power control capability. However, VSC based DC grid is also facing many operation control and protection problems to be solved, especially the problem of fault protection for the DC grid. This paper first analyzed the fault characteristics of the DC grid, and then through a typical DC grid configuration, a zone protection strategy is proposed with the objective of using a minimum number of DCCBs. The simulation results using MATLAB/Simulink platform show that the zone protection strategy is feasible and effective. The study in this paper provides a technical reference for the research and development of fault protection and isolation for DC grid in the future.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"128 1","pages":"713-718"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86399022","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512671
M. Fallah, H. M. Kojabadi, A. Naebi, S. S. Shenava, Liuchen Chang
This paper proposes a new structure for cascade h-bridge (CHB) based modular multi-level voltage source inverter. As with the correct arrangement of power semiconductor switches and voltage sources, the proposed inverter can provide a high number of output levels with minimum requirements to the circuit devices. By reducing these requirements, cost and circuit size significantly reduce, the inverter control becomes easier and also the system reliability enhances. Furthermore the simulation and also experimental results prove the feasibility of implementing the proposed inverter topology.
{"title":"A novel symmetrical cascade h-bridge multi-level inverter topology with reduced switching devices","authors":"M. Fallah, H. M. Kojabadi, A. Naebi, S. S. Shenava, Liuchen Chang","doi":"10.1109/IPEMC.2016.7512671","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512671","url":null,"abstract":"This paper proposes a new structure for cascade h-bridge (CHB) based modular multi-level voltage source inverter. As with the correct arrangement of power semiconductor switches and voltage sources, the proposed inverter can provide a high number of output levels with minimum requirements to the circuit devices. By reducing these requirements, cost and circuit size significantly reduce, the inverter control becomes easier and also the system reliability enhances. Furthermore the simulation and also experimental results prove the feasibility of implementing the proposed inverter topology.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"4 1","pages":"2389-2393"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79043930","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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