Pub Date : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521947
Efe IsaTezde, M. MuhsinDemir, Fatih Gurel, H. IbrahimOkumus, Hakan Kahveci
In this study, a power converter was designed to use in electrical appliances the energy generated from renewable energy sources or supplied from the battery packs. This converter consists of a cascade connection of DC-DC boost converter and a single phase full bridge inverter. The DC-DC Boost Converter is used to increase the DC voltage of the battery or renewable energy system and is controlled with the PI, PID and Fuzzy Logic (FL) controllers to keep a constant level the DC Link voltage. The single phase full bridge inverter converts the DC-Link voltage to a two-level AC voltage by using the sinusoidal PWM control signal. The output voltage of the inverter controlled by the unipolar SPWM switching signal contains less harmonics than the bipolar switching signal.
{"title":"Two-Stage Power Converter Design and Control for Renewable Energy Systems","authors":"Efe IsaTezde, M. MuhsinDemir, Fatih Gurel, H. IbrahimOkumus, Hakan Kahveci","doi":"10.1109/EPEPEMC.2018.8521947","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521947","url":null,"abstract":"In this study, a power converter was designed to use in electrical appliances the energy generated from renewable energy sources or supplied from the battery packs. This converter consists of a cascade connection of DC-DC boost converter and a single phase full bridge inverter. The DC-DC Boost Converter is used to increase the DC voltage of the battery or renewable energy system and is controlled with the PI, PID and Fuzzy Logic (FL) controllers to keep a constant level the DC Link voltage. The single phase full bridge inverter converts the DC-Link voltage to a two-level AC voltage by using the sinusoidal PWM control signal. The output voltage of the inverter controlled by the unipolar SPWM switching signal contains less harmonics than the bipolar switching signal.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123047336","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521971
Anh-Vu Ho, T. Chun
This paper proposes the novel topologies implemented by embedding a single dc voltage source or two separate dc voltage sources in the impedance network of an existing modified quasi-Z-source (MqZS) hybrid three-level inverter topology, which combines the modified quasi-Z-source impedance and the hybrid three-level inverter. The proposed topology can provide the continuous dc source currents without any additional external filter, and can increase the boost factor by a factor of two by embedding two separate dc sources in the impedance network. The operating principle of the proposed topologies is analyzed, and the performances of the proposed topology are demonstrated by the simulation and experimental results.
{"title":"A Single-Phase Symmetrical Embedded Modified-Quasi-Z-Source Hybrid Three-Level Inverter","authors":"Anh-Vu Ho, T. Chun","doi":"10.1109/EPEPEMC.2018.8521971","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521971","url":null,"abstract":"This paper proposes the novel topologies implemented by embedding a single dc voltage source or two separate dc voltage sources in the impedance network of an existing modified quasi-Z-source (MqZS) hybrid three-level inverter topology, which combines the modified quasi-Z-source impedance and the hybrid three-level inverter. The proposed topology can provide the continuous dc source currents without any additional external filter, and can increase the boost factor by a factor of two by embedding two separate dc sources in the impedance network. The operating principle of the proposed topologies is analyzed, and the performances of the proposed topology are demonstrated by the simulation and experimental results.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115982461","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521749
Mehmet Mutlu, O. Keysan, B. Ulutas
Trajectory planning has a significant role in meeting the strict requirements of the systems in motion. Focus of the trajectory design can be minimum response time, minimum error or extended service life depending on the application. Limited time and error minimization requirements can be achieved in the systems with small inertia without any visible problems. However, torque ripples and vibration create fatigue in the mechanical parts. In this study, limited-jerk sinusoidal trajectory (also known as cycloidal follower motion) is proposed in the field oriented control (FOC) of permanent magnet synchronous motors (PMSM) to achieve precise motion control, reduced torque ripple and extend service life. In order to show the effectiveness of the proposed method in this study, simulation results of the closed-loop systems are compared with reference trajectories calculated using various methods. The velocity and the position of the load are controlled with an H-infinity optimal controller that is designed after the open-loop system identification.
{"title":"Limited-Jerk Sinusoidal Trajectory Design for FOC of PMSM with H -Infinity Optimal Controller","authors":"Mehmet Mutlu, O. Keysan, B. Ulutas","doi":"10.1109/EPEPEMC.2018.8521749","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521749","url":null,"abstract":"Trajectory planning has a significant role in meeting the strict requirements of the systems in motion. Focus of the trajectory design can be minimum response time, minimum error or extended service life depending on the application. Limited time and error minimization requirements can be achieved in the systems with small inertia without any visible problems. However, torque ripples and vibration create fatigue in the mechanical parts. In this study, limited-jerk sinusoidal trajectory (also known as cycloidal follower motion) is proposed in the field oriented control (FOC) of permanent magnet synchronous motors (PMSM) to achieve precise motion control, reduced torque ripple and extend service life. In order to show the effectiveness of the proposed method in this study, simulation results of the closed-loop systems are compared with reference trajectories calculated using various methods. The velocity and the position of the load are controlled with an H-infinity optimal controller that is designed after the open-loop system identification.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116842566","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521751
I. Isakov, V. Katić, Ivan Todorović, S. Grabic
The development of the distributed power energy sources has resulted in the increase of the number of the power converters in the distribution network. The control strategies of these converters have to be improved in order to maximize the power production and satisfy the grid code requirements, especially in abnormal grid conditions. In this paper control algorithm for a photovoltaic (PV) system connected to the grid through two-stage power converter is analyzed considering normal grid conditions and grid faults, as well as sudden change of the illumination intensity on the PV side. The proposed solution features several key improvements comparing to the existing solutions, such as smooth transition between the modes of operation, fast response to the grid disturbances, provision of several grid support strategies and instantaneous limitation of the phase currents. The control algorithm is tested in the hardware-in-the-Ioop testing environment and the results that verify the proposed control strategy are given.
{"title":"Control Strategy for Two-Stage Photovoltaic Power Converter During Simultaneous Grid Faults and Irradiance Change","authors":"I. Isakov, V. Katić, Ivan Todorović, S. Grabic","doi":"10.1109/EPEPEMC.2018.8521751","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521751","url":null,"abstract":"The development of the distributed power energy sources has resulted in the increase of the number of the power converters in the distribution network. The control strategies of these converters have to be improved in order to maximize the power production and satisfy the grid code requirements, especially in abnormal grid conditions. In this paper control algorithm for a photovoltaic (PV) system connected to the grid through two-stage power converter is analyzed considering normal grid conditions and grid faults, as well as sudden change of the illumination intensity on the PV side. The proposed solution features several key improvements comparing to the existing solutions, such as smooth transition between the modes of operation, fast response to the grid disturbances, provision of several grid support strategies and instantaneous limitation of the phase currents. The control algorithm is tested in the hardware-in-the-Ioop testing environment and the results that verify the proposed control strategy are given.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117165386","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521961
S. Mircevski, Dragan Vidanovski, S. Ryvkin
Electric motor drives according international standard IEC 60034–1 are divided in ten duty types, from S1 to S10. This paper has purpose to make analysis for the S8, S9 and S10 duty types, which are with adjustable speed drives (ASD). The goal of this paper is to discuss methods for speed control of induction motors (IM) and consumption of total electric energy. By more examples it is presented that consumption of non active energy is not negligible. So, for choice of motor for ASD is proposed additional diagram regarding consumption of non active energy.
{"title":"How to Choose Electric Motor for Adjustable Speed Drive (ASD)","authors":"S. Mircevski, Dragan Vidanovski, S. Ryvkin","doi":"10.1109/EPEPEMC.2018.8521961","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521961","url":null,"abstract":"Electric motor drives according international standard IEC 60034–1 are divided in ten duty types, from S1 to S10. This paper has purpose to make analysis for the S8, S9 and S10 duty types, which are with adjustable speed drives (ASD). The goal of this paper is to discuss methods for speed control of induction motors (IM) and consumption of total electric energy. By more examples it is presented that consumption of non active energy is not negligible. So, for choice of motor for ASD is proposed additional diagram regarding consumption of non active energy.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115622484","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521848
B. Lin, Yong-Sheng Zhuang
This paper presents three soft switching converters in future dc microgrid system applications. The studied circuits are consisted of series-connection of half-or full-bridge circuits with a single transformer to convert high-voltage input to low-voltage output. On high-voltage side, $mathbf{n}$ converters are series connection to reduce the voltage rating of power switches into $mathbf{V}_{mathbf{in}}/mathbf{n}$. Thus, the low voltage stress MOSFETs with low turn-on resistance can be used in each converter modules to reduce conduction loss, increase switching frequency and reduce circuit size. The control scheme of the studied circuits are using the general asymmetric PWM scheme, phase-shift PWM scheme and frequency control scheme to control load voltage stable. Power devices in these three control approaches are all turned on at zero-voltage switching such that the switching losses are reduced and high circuit efficiency is predicted. Finally, the performance of the proposed circuit was demonstrated by the prototype circuits.
{"title":"Soft-Switching Converter Based on Primary Series Connection and Single Transformer","authors":"B. Lin, Yong-Sheng Zhuang","doi":"10.1109/EPEPEMC.2018.8521848","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521848","url":null,"abstract":"This paper presents three soft switching converters in future dc microgrid system applications. The studied circuits are consisted of series-connection of half-or full-bridge circuits with a single transformer to convert high-voltage input to low-voltage output. On high-voltage side, $mathbf{n}$ converters are series connection to reduce the voltage rating of power switches into $mathbf{V}_{mathbf{in}}/mathbf{n}$. Thus, the low voltage stress MOSFETs with low turn-on resistance can be used in each converter modules to reduce conduction loss, increase switching frequency and reduce circuit size. The control scheme of the studied circuits are using the general asymmetric PWM scheme, phase-shift PWM scheme and frequency control scheme to control load voltage stable. Power devices in these three control approaches are all turned on at zero-voltage switching such that the switching losses are reduced and high circuit efficiency is predicted. Finally, the performance of the proposed circuit was demonstrated by the prototype circuits.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114126577","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521915
Ander González, Ramón López-Erauskin, J. Gyselinck, Tat KeiChau, H. Iu, T. Fernando
Application of feedback linearization control to interleaved three-port boost converter is presented. The control presents a fast transient response and is able to share the current between the two branches of the converter while controlling the output voltage for standalone operation. In order to extend its operation range and make it able to work in different operating points, an outer loop for the current reference generation is used. Simulation results are presented showing the proposed operation of the converter and its features are discussed.
{"title":"Nonlinear MIMO Control of Interleaved Three-Port Boost Converter by Means of State-Feedback Linearization","authors":"Ander González, Ramón López-Erauskin, J. Gyselinck, Tat KeiChau, H. Iu, T. Fernando","doi":"10.1109/EPEPEMC.2018.8521915","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521915","url":null,"abstract":"Application of feedback linearization control to interleaved three-port boost converter is presented. The control presents a fast transient response and is able to share the current between the two branches of the converter while controlling the output voltage for standalone operation. In order to extend its operation range and make it able to work in different operating points, an outer loop for the current reference generation is used. Simulation results are presented showing the proposed operation of the converter and its features are discussed.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"67 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114087128","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8522011
L. Ferraris, E. Pošković, F. Franchini
Magnetic sensors are widely adopted in many industrial fields, particularly where the environmental conditions are difficult. A particular application, represented by a guitar pickup has been taken as reference to test innovative magnetic materials. The materials here proposed are Hybrid Magnetic Composites (HMC), obtained mixing together magnetic powder (Neodymium), a polymeric binder and a percentage of iron and then pressing in a mold. The resulting material presents a magnetic characteristic quite similar to those of AlNiCo, normally adopted in these kinds of pickup. In order to foresee the behavior of the sensor with a large number of possible materials, a dedicated simulation model has been realized; the simulation of the flux linkage in the coil, and the consequent induced voltage allows to compare the results and focus the attention on the most promising materials. AlNiCo, bonded magnets and HMC are compared in terms of performance. Contrarily to what can be imagined the materials with higher magnetic characteristics are not the best solution; particular attention has been in fact devoted to the evaluation of the attractive force between the magnets and the strings, that cannot be too high.
{"title":"Pickup Magnetic Sensors: a Dedicated Simulation Tool to Evaluate Innovative Hybrid Materials","authors":"L. Ferraris, E. Pošković, F. Franchini","doi":"10.1109/EPEPEMC.2018.8522011","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8522011","url":null,"abstract":"Magnetic sensors are widely adopted in many industrial fields, particularly where the environmental conditions are difficult. A particular application, represented by a guitar pickup has been taken as reference to test innovative magnetic materials. The materials here proposed are Hybrid Magnetic Composites (HMC), obtained mixing together magnetic powder (Neodymium), a polymeric binder and a percentage of iron and then pressing in a mold. The resulting material presents a magnetic characteristic quite similar to those of AlNiCo, normally adopted in these kinds of pickup. In order to foresee the behavior of the sensor with a large number of possible materials, a dedicated simulation model has been realized; the simulation of the flux linkage in the coil, and the consequent induced voltage allows to compare the results and focus the attention on the most promising materials. AlNiCo, bonded magnets and HMC are compared in terms of performance. Contrarily to what can be imagined the materials with higher magnetic characteristics are not the best solution; particular attention has been in fact devoted to the evaluation of the attractive force between the magnets and the strings, that cannot be too high.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114378892","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 : 2018-08-01DOI: 10.1109/epepemc.2018.8521870
{"title":"Active Filtering and Unity Power Factor Correction","authors":"","doi":"10.1109/epepemc.2018.8521870","DOIUrl":"https://doi.org/10.1109/epepemc.2018.8521870","url":null,"abstract":"","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126401015","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521869
G. Ma, X. Qiu, Jianfei Yang, F. Bu, Y. Dou, W. Cao
The structural parameter optimization to reduce cogging torque of the consequent pole in-wheel motor (CPM) is studied in this paper. The analysis model of calculating the cogging torque is derived by the energy equations and finite-element analysis (FEA) is carried out for accurate numerical simulation of the cogging torque. The difference between the consequent pole structure and the conventional structure is investigated firstly. Then the influences of structural parameters on the cogging torque, such as pole arc coefficient and widths of slot opening are calculated and analyzed. Beyond that, the slot-pole match and curved iron core to reduce cogging torque are studied. Through the analysis of calculation results, the optimized structural parameters are obtained, and experiment results from two prototypes demonstrate the correctness and feasibility of the proposed methods.
{"title":"Structural Parameter Optimization to Reduce Cogging Torque of the Consequent Pole In-Wheel Motor","authors":"G. Ma, X. Qiu, Jianfei Yang, F. Bu, Y. Dou, W. Cao","doi":"10.1109/EPEPEMC.2018.8521869","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521869","url":null,"abstract":"The structural parameter optimization to reduce cogging torque of the consequent pole in-wheel motor (CPM) is studied in this paper. The analysis model of calculating the cogging torque is derived by the energy equations and finite-element analysis (FEA) is carried out for accurate numerical simulation of the cogging torque. The difference between the consequent pole structure and the conventional structure is investigated firstly. Then the influences of structural parameters on the cogging torque, such as pole arc coefficient and widths of slot opening are calculated and analyzed. Beyond that, the slot-pole match and curved iron core to reduce cogging torque are studied. Through the analysis of calculation results, the optimized structural parameters are obtained, and experiment results from two prototypes demonstrate the correctness and feasibility of the proposed methods.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125148230","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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