Pub Date : 2015-06-01DOI: 10.1109/EVER.2015.7113005
B. Mauricio Espinoza, A. Mora, M. Díaz, R. Cárdenas
The modular multilevel topologies are the next generation of power converters for applications where high power-voltage is necessary, such as traction systems, marine propulsion and Wind Energy Conversion Systems. In this paper, a new model and its respective control scheme for the Modular Multilevel Converter are proposed. The model is able to represent separately the dynamic of each port and to show the degrees of freedom in the converter, which are two circulating currents and the common mode voltage. These three degrees of freedom were used to perform energy balancing and to mitigate the voltage fluctuations at low AC frequency operation. Additionally, the proposed control strategy is extended to control two Modular Multilevel Converters in Back to Back configuration. Extensive theoretical analysis and computer simulation validate the effectiveness and viability of the presented control algorithm.
{"title":"Balancing energy and low frequency operation of the Modular Multilevel Converter in Back to Back configuration","authors":"B. Mauricio Espinoza, A. Mora, M. Díaz, R. Cárdenas","doi":"10.1109/EVER.2015.7113005","DOIUrl":"https://doi.org/10.1109/EVER.2015.7113005","url":null,"abstract":"The modular multilevel topologies are the next generation of power converters for applications where high power-voltage is necessary, such as traction systems, marine propulsion and Wind Energy Conversion Systems. In this paper, a new model and its respective control scheme for the Modular Multilevel Converter are proposed. The model is able to represent separately the dynamic of each port and to show the degrees of freedom in the converter, which are two circulating currents and the common mode voltage. These three degrees of freedom were used to perform energy balancing and to mitigate the voltage fluctuations at low AC frequency operation. Additionally, the proposed control strategy is extended to control two Modular Multilevel Converters in Back to Back configuration. Extensive theoretical analysis and computer simulation validate the effectiveness and viability of the presented control algorithm.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121310689","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112949
C. Awah, Z. Zhu, Z. Wu, J. T. Shi, D. Wu
In this paper, the electromagnetic performance of partitioned stator switched flux permanent magnet (PM) (PS-SFPM) machines with single- and double-layer windings are compared when the inner stator is equipped with the same number or half the number of PMs as that of the outer stator teeth. Electromagnetic performance of these PS-SFPM machines is investigated by 2-dimensional finite element analysis (FEA), based on the globally optimized designs for the maximum average electromagnetic torque. FEA results show that for 12-outer-stator-tooth and 12-inner-stator-PM PS-SFPM machines the double-layer windings produce higher torque than the single-layer windings, but for 12-outer-statortooth and 6-inner-stator-PM PS-SFPM machines it is opposite, i.e. the double-layer windings produce less torque than the single-layer windings. Overall, the 12-outer-stator-tooth and 12-inner-stator-PM PS-SFPM machines produce higher torque and less torque ripple than the 12-outer stator-tooth and 6-inner stator-PM PS-SFPM machines.
{"title":"Comparison of partitioned stator switched flux permanent magnet machines having single- and double-layer windings","authors":"C. Awah, Z. Zhu, Z. Wu, J. T. Shi, D. Wu","doi":"10.1109/EVER.2015.7112949","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112949","url":null,"abstract":"In this paper, the electromagnetic performance of partitioned stator switched flux permanent magnet (PM) (PS-SFPM) machines with single- and double-layer windings are compared when the inner stator is equipped with the same number or half the number of PMs as that of the outer stator teeth. Electromagnetic performance of these PS-SFPM machines is investigated by 2-dimensional finite element analysis (FEA), based on the globally optimized designs for the maximum average electromagnetic torque. FEA results show that for 12-outer-stator-tooth and 12-inner-stator-PM PS-SFPM machines the double-layer windings produce higher torque than the single-layer windings, but for 12-outer-statortooth and 6-inner-stator-PM PS-SFPM machines it is opposite, i.e. the double-layer windings produce less torque than the single-layer windings. Overall, the 12-outer-stator-tooth and 12-inner-stator-PM PS-SFPM machines produce higher torque and less torque ripple than the 12-outer stator-tooth and 6-inner stator-PM PS-SFPM machines.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126511166","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112915
S. Mandelli, M. Merlo, E. Tedeschi, M. Molinas
This paper introduces the project Energy4Growing which aims to set up a hybrid micro-grid to supply power to a school in rural Tanzania. It describes the results of the early project actions which concerned: (i) monitoring of the actual school power supply system; (ii) first step development of a new model which addresses the simulation of the electro-mechanical operation and dynamic behavior within an off-grid power supply system with respect to perturbation in the power injections and consumptions. In particular it focuses on the new model which has the capability to address: (i) V and F trends analysis over medium term period by means of simplified electrical models of power sources and power electronics, (ii) the analysis of different control strategies and their consequence on V and f trends, (iii) the effects of control strategies on the energy performances of particular components such as battery pack or dump loads. This new approach is also applied by modelling the actual school power supply system with MATLAB SimPowerSystem.
{"title":"Electro-mechanical model for understanding the operation and dynamic behavior of a micro-grid: A case study in Tanzania","authors":"S. Mandelli, M. Merlo, E. Tedeschi, M. Molinas","doi":"10.1109/EVER.2015.7112915","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112915","url":null,"abstract":"This paper introduces the project Energy4Growing which aims to set up a hybrid micro-grid to supply power to a school in rural Tanzania. It describes the results of the early project actions which concerned: (i) monitoring of the actual school power supply system; (ii) first step development of a new model which addresses the simulation of the electro-mechanical operation and dynamic behavior within an off-grid power supply system with respect to perturbation in the power injections and consumptions. In particular it focuses on the new model which has the capability to address: (i) V and F trends analysis over medium term period by means of simplified electrical models of power sources and power electronics, (ii) the analysis of different control strategies and their consequence on V and f trends, (iii) the effects of control strategies on the energy performances of particular components such as battery pack or dump loads. This new approach is also applied by modelling the actual school power supply system with MATLAB SimPowerSystem.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127237221","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112917
M. Kremers, D. V. Casteren, J. Paulides, E. Lomonova
Modeling the 3-D flux patterns within Transverse Flux Machines (TFM) is one of the main challenges during their design. The analysis and design are often based on 3-D Finite Element Methods (FEM). Analytical models of TFMs are mostly limited to Magnetic Equivalent Circuits (MEC). This paper uses an analytical magnetic charge model to calculate the 3-D flux density in the air gap. An iterative approach allows for the modeling of flux focussing, resulting in a semi-analytical solution. Including flux focussing in the magnetic charge model results in a highly accurate prediction of the magnetic flux density in the air gap with less than 10% error. Furthermore, the cogging and attraction force of the machine are calculated for four topologies.
{"title":"Semi-analytical 3-D magnetic charge model for force calculation of a Transverse Flux Machine","authors":"M. Kremers, D. V. Casteren, J. Paulides, E. Lomonova","doi":"10.1109/EVER.2015.7112917","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112917","url":null,"abstract":"Modeling the 3-D flux patterns within Transverse Flux Machines (TFM) is one of the main challenges during their design. The analysis and design are often based on 3-D Finite Element Methods (FEM). Analytical models of TFMs are mostly limited to Magnetic Equivalent Circuits (MEC). This paper uses an analytical magnetic charge model to calculate the 3-D flux density in the air gap. An iterative approach allows for the modeling of flux focussing, resulting in a semi-analytical solution. Including flux focussing in the magnetic charge model results in a highly accurate prediction of the magnetic flux density in the air gap with less than 10% error. Furthermore, the cogging and attraction force of the machine are calculated for four topologies.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130454016","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112927
M. Fakam, M. Hecquet, V. Lanfranchi, A. Randria
Nowadays, developing electric motorization for land vehicles is essential due to the crucial need to save energy. Regarding the specific speed-torque characteristics (high saturation level, high speed, considerable flux weakening) and manufacturing cost, the Interior Permanent Magnet (IPM) Synchronous Machine (SM) provides considerable advantages. This paper presents the development of a tool used for optimal acoustic and electromechanical modeling of an IPM-SM, whose highly accurate calculations and speed of resolution make it stand out from standard analytical and Finite Element models. By coupling an analytical model with static Finite Element Analysis (FEA), our `hybrid' model calculates a complex global air-gap permeance per area unit, to take into account magnetic wedge permeability, stator slots shape, pre-slot height, permanent magnets (PMs) dimensions, and rotor yoke shape. An unparalleled level of precision and time of resolution are obtained for the computation of air-gap magnetic pressures.
{"title":"Improved method to compute air-gap magnetic pressure of the Interior Permanent Magnet Synchronous Machine","authors":"M. Fakam, M. Hecquet, V. Lanfranchi, A. Randria","doi":"10.1109/EVER.2015.7112927","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112927","url":null,"abstract":"Nowadays, developing electric motorization for land vehicles is essential due to the crucial need to save energy. Regarding the specific speed-torque characteristics (high saturation level, high speed, considerable flux weakening) and manufacturing cost, the Interior Permanent Magnet (IPM) Synchronous Machine (SM) provides considerable advantages. This paper presents the development of a tool used for optimal acoustic and electromechanical modeling of an IPM-SM, whose highly accurate calculations and speed of resolution make it stand out from standard analytical and Finite Element models. By coupling an analytical model with static Finite Element Analysis (FEA), our `hybrid' model calculates a complex global air-gap permeance per area unit, to take into account magnetic wedge permeability, stator slots shape, pre-slot height, permanent magnets (PMs) dimensions, and rotor yoke shape. An unparalleled level of precision and time of resolution are obtained for the computation of air-gap magnetic pressures.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132098429","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112926
J. Paulides, E. Post, J. Post, L. Encica, E. Lomonova
The GREEN TURBINE™ is a high speed double turbine generator which generates electricity from waste heat. This external combustion, e.g. from waste heat (steel mill), biomass or extracted from the tailpipe of an internal combustion engine, makes it possible to control combustion and therefore emission levels to a very high degree. As the temperature of the steam can be relatively low (140-220 °C), waste heat is very suitable to power this turbine, enabling combined cycle applications with the turbine as second stage. Herewith the Green turbine enhances the total efficiency of waste heat applications by a mere 15% without consideration of the heat that is present in the cooling water (around 40°C) following the turbine.
GREEN TURBINE™是一种利用废热发电的高速双涡轮发电机。这种外部燃烧，例如来自废热(钢铁厂)，生物质或从内燃机的排气管中提取，使得控制燃烧和排放水平达到非常高的程度成为可能。由于蒸汽的温度相对较低(140-220°C)，废热非常适合为该涡轮机提供动力，从而实现与涡轮机作为第二级的联合循环应用。因此，如果不考虑冷却水(约40°C)中存在的热量，绿色涡轮机将废热应用的总效率提高了15%。
{"title":"Green turbine: A high speed double turbine solution for sustainable energy harvesting from waste heat","authors":"J. Paulides, E. Post, J. Post, L. Encica, E. Lomonova","doi":"10.1109/EVER.2015.7112926","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112926","url":null,"abstract":"The GREEN TURBINE™ is a high speed double turbine generator which generates electricity from waste heat. This external combustion, e.g. from waste heat (steel mill), biomass or extracted from the tailpipe of an internal combustion engine, makes it possible to control combustion and therefore emission levels to a very high degree. As the temperature of the steam can be relatively low (140-220 °C), waste heat is very suitable to power this turbine, enabling combined cycle applications with the turbine as second stage. Herewith the Green turbine enhances the total efficiency of waste heat applications by a mere 15% without consideration of the heat that is present in the cooling water (around 40°C) following the turbine.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134373798","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 : 2015-06-01DOI: 10.1109/EVER.2015.7113007
M. Longo, D. Zaninelli, F. Viola, P. Romano, R. Miceli
In this moment, the principle topics for the modern world are the reduction of environmental pollution and the production of energy from renewable sources (for example photovoltaic system, wind farm, hydroelectric plants, etc.). This particular attention is determined by different reasons, in particular from the Kyoto Protocol, and from different problems as greenhouse effect, acid rain and climate change. The scope of this work is to study, for different years (1997-2013) in Italy, the production of electric energy from renewable and non-renewable. At a later stage, the attention will be on the consumption of the electric energy divided for different sectors. In particular, we study the possible solutions in order to reduce emissions. This paper examines the integration of sources of renewable energy in all regions of Italy where the focus is on the possibility to reduce emission integrating the electric vehicles.
{"title":"Eletric vehicles impact using renewable energy","authors":"M. Longo, D. Zaninelli, F. Viola, P. Romano, R. Miceli","doi":"10.1109/EVER.2015.7113007","DOIUrl":"https://doi.org/10.1109/EVER.2015.7113007","url":null,"abstract":"In this moment, the principle topics for the modern world are the reduction of environmental pollution and the production of energy from renewable sources (for example photovoltaic system, wind farm, hydroelectric plants, etc.). This particular attention is determined by different reasons, in particular from the Kyoto Protocol, and from different problems as greenhouse effect, acid rain and climate change. The scope of this work is to study, for different years (1997-2013) in Italy, the production of electric energy from renewable and non-renewable. At a later stage, the attention will be on the consumption of the electric energy divided for different sectors. In particular, we study the possible solutions in order to reduce emissions. This paper examines the integration of sources of renewable energy in all regions of Italy where the focus is on the possibility to reduce emission integrating the electric vehicles.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115286217","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 : 2015-06-01DOI: 10.1109/EVER.2015.7112985
T. Kovaltchouk, A. Blavette, H. Ben Ahmed, B. Multon, J. Aubry
This article compares the sizes of an Energy Storage System (ESS) with two control types in order to smooth a Direct Wave Energy Converter (DWEC) Farm Production, namely a centralized one that deals with the PCC power and a decentralized one that deals with each unit power production. The main objective is to compare the two controls on the basis of their life cycle cost. The SEAREV project is the Direct Wave Energy Converter used as an example in this paper. The ESS is necessary for grid integration in the case considered here due to the flicker constraint, which is not being satisfied without storage. The optimization strategies for both the sizing and the management of an Energy Storage System (ESS) will be described: the rule-based energy management approach depends on the State of Energy of this ESS as well as the power produced by the DWEC unit or the DWEC farm. This management strategy has been optimized for each size in order to reduce aging speed while strictly respecting the flicker criterion. The final design is expected to minimize total system cost. The centralized control clearly allowed smaller capacity, but has some drawbacks for the losses in the rest of the farm.
{"title":"Comparison between centralized and decentralized storage energy management for Direct Wave Energy Converter Farm","authors":"T. Kovaltchouk, A. Blavette, H. Ben Ahmed, B. Multon, J. Aubry","doi":"10.1109/EVER.2015.7112985","DOIUrl":"https://doi.org/10.1109/EVER.2015.7112985","url":null,"abstract":"This article compares the sizes of an Energy Storage System (ESS) with two control types in order to smooth a Direct Wave Energy Converter (DWEC) Farm Production, namely a centralized one that deals with the PCC power and a decentralized one that deals with each unit power production. The main objective is to compare the two controls on the basis of their life cycle cost. The SEAREV project is the Direct Wave Energy Converter used as an example in this paper. The ESS is necessary for grid integration in the case considered here due to the flicker constraint, which is not being satisfied without storage. The optimization strategies for both the sizing and the management of an Energy Storage System (ESS) will be described: the rule-based energy management approach depends on the State of Energy of this ESS as well as the power produced by the DWEC unit or the DWEC farm. This management strategy has been optimized for each size in order to reduce aging speed while strictly respecting the flicker criterion. The final design is expected to minimize total system cost. The centralized control clearly allowed smaller capacity, but has some drawbacks for the losses in the rest of the farm.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114879334","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 : 2015-06-01DOI: 10.1109/EVER.2015.7113037
G. Iwański, P. Pura, Tomasz Luszczyk
The paper presents properties and control methods of grid-connected doubly-fed induction generator (DFIG). The paper is focused on unbalanced grid operation, because presently it is the biggest challenge for this type of generator. There are discussed three most popular methods - direct power control, direct torque control, and vector control with proportional-resonant PR controllers of rotor current in stationary alpha-beta frame. In each method, the reference signals of electromagnetic torque, instantaneous power components and rotor current components are calculated without sequence decomposition.
{"title":"Properties and control of variable speed doubly fed induction generator","authors":"G. Iwański, P. Pura, Tomasz Luszczyk","doi":"10.1109/EVER.2015.7113037","DOIUrl":"https://doi.org/10.1109/EVER.2015.7113037","url":null,"abstract":"The paper presents properties and control methods of grid-connected doubly-fed induction generator (DFIG). The paper is focused on unbalanced grid operation, because presently it is the biggest challenge for this type of generator. There are discussed three most popular methods - direct power control, direct torque control, and vector control with proportional-resonant PR controllers of rotor current in stationary alpha-beta frame. In each method, the reference signals of electromagnetic torque, instantaneous power components and rotor current components are calculated without sequence decomposition.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114738960","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 : 2015-06-01DOI: 10.1109/EVER.2015.7113031
S. Lundmark, Poopak Roshanfekr Fard
Verified simulation models both in 2D and 3D are used to compare a radial flux machine (IPM) with a transverse flux machine (TFM) for a traction application. The analysis highlights the importance of a dense mesh and a high number of time steps when calculating core and magnet loss. It also shows the practical handling of loss modelling in 2D and 3D respectively, including a stacking factor for the core lamination and magnet segmentation, and it is recommended that you are careful when comparing losses from 2D and 3D models. The TFM is shown to have much higher magnet loss compared to the IPM although the TFM magnet design (with ring magnets) makes segmentation very effective. However, the efficiency is still favorable for the TFM, compared to the IPM due to the relatively low copper loss in the TFM ring coil.
{"title":"Magnet and core loss in a radial flux and a transverse flux PM traction motor","authors":"S. Lundmark, Poopak Roshanfekr Fard","doi":"10.1109/EVER.2015.7113031","DOIUrl":"https://doi.org/10.1109/EVER.2015.7113031","url":null,"abstract":"Verified simulation models both in 2D and 3D are used to compare a radial flux machine (IPM) with a transverse flux machine (TFM) for a traction application. The analysis highlights the importance of a dense mesh and a high number of time steps when calculating core and magnet loss. It also shows the practical handling of loss modelling in 2D and 3D respectively, including a stacking factor for the core lamination and magnet segmentation, and it is recommended that you are careful when comparing losses from 2D and 3D models. The TFM is shown to have much higher magnet loss compared to the IPM although the TFM magnet design (with ring magnets) makes segmentation very effective. However, the efficiency is still favorable for the TFM, compared to the IPM due to the relatively low copper loss in the TFM ring coil.","PeriodicalId":169529,"journal":{"name":"2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129026061","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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