Pub Date : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445243
D. Lauria, S. Quaia
This paper deals with the loadability of series-compensated lines. Aim of the paper is to provide loadability curves calculated considering various technical limits, namely the thermal limit, the voltage drop limit, the Joule losses limit, and the steady-state stability limit. These curves are evaluated with respect to single circuit 400-kV overhead transmission lines (OHLs) equipped with standard triple-core aluminium conductor steel-reinforced (ACSR) conductor bundles of $pmb{3times 585}mathbf{mm}^{pmb{2}}$ cross section. The paper describes the optimization procedure used to maximize the active power transported at the receiving-end of the line. The optimal level of series compensation is obtained as a result of the optimization problem constrained by all the technical limits listed above. The last part of the paper is devoted to an extensive numerical application that has the aim of demonstrating the feasibility and applicability of the nronosed annroach. This study highlights the loadability increase that can be obtained through series capacitors, and might support the decision-making for the investments required by series compensation.
{"title":"Transmission Line Loadability Increase through Series compensation","authors":"D. Lauria, S. Quaia","doi":"10.1109/SPEEDAM.2018.8445243","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445243","url":null,"abstract":"This paper deals with the loadability of series-compensated lines. Aim of the paper is to provide loadability curves calculated considering various technical limits, namely the thermal limit, the voltage drop limit, the Joule losses limit, and the steady-state stability limit. These curves are evaluated with respect to single circuit 400-kV overhead transmission lines (OHLs) equipped with standard triple-core aluminium conductor steel-reinforced (ACSR) conductor bundles of $pmb{3times 585}mathbf{mm}^{pmb{2}}$ cross section. The paper describes the optimization procedure used to maximize the active power transported at the receiving-end of the line. The optimal level of series compensation is obtained as a result of the optimization problem constrained by all the technical limits listed above. The last part of the paper is devoted to an extensive numerical application that has the aim of demonstrating the feasibility and applicability of the nronosed annroach. This study highlights the loadability increase that can be obtained through series capacitors, and might support the decision-making for the investments required by series compensation.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131303998","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445204
T. Nakamura, K. Ikeda, T. Karashima, S. Guo, M. Yoshikawa, Y. Itoh, T. Terazawa, Y. Ohashi
This paper reports on torque density maximization and overload tolerance of a high-temperature superconducting induction/synchronous motor (HTS-ISM), which has been aiming to next generation transportation equipment (bus, truck, electric vehicle, etc.). That is, overload characteristics of the HTS-ISM is explained and demonstrated through analysis and experiments. It is shown that the prototype shows overload (slip) output at 2 times as large as the rated synchronous one (20 kW), and then such characteristics can be reproduced by means of 2D finite element analysis, in which the contact resistance of rotor windings is utilized as a fitting parameter. Furthermore, high torque test at 600 rpm is also carried out and discussed. This result could be applied to the optimal design of the HTS-ISM that possesses the overload tolerance.
{"title":"Experimental and Analytical Study on Torque Density Maximization of High Temperature Superconducting Induction/Synchronous Motor","authors":"T. Nakamura, K. Ikeda, T. Karashima, S. Guo, M. Yoshikawa, Y. Itoh, T. Terazawa, Y. Ohashi","doi":"10.1109/SPEEDAM.2018.8445204","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445204","url":null,"abstract":"This paper reports on torque density maximization and overload tolerance of a high-temperature superconducting induction/synchronous motor (HTS-ISM), which has been aiming to next generation transportation equipment (bus, truck, electric vehicle, etc.). That is, overload characteristics of the HTS-ISM is explained and demonstrated through analysis and experiments. It is shown that the prototype shows overload (slip) output at 2 times as large as the rated synchronous one (20 kW), and then such characteristics can be reproduced by means of 2D finite element analysis, in which the contact resistance of rotor windings is utilized as a fitting parameter. Furthermore, high torque test at 600 rpm is also carried out and discussed. This result could be applied to the optimal design of the HTS-ISM that possesses the overload tolerance.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257210","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445356
M. Carpita, P. Caramia, E. Ascione, D. Proto, P. Varilone
Plug in electric vehicles (PEVs) are expected to playa significant role not only for the economic and environmental benefits they involve but also for the ancillary services they can provide to the supplying grid. However, the inclusion of the electrical vehicles in distribution systems leads to a series of challenges in grid operation. The PEVs battery chargers include static converters that can cause high waveform distortion levels in the line currents and bus voltages of the grid. Then, a harmonic analysis of the whole system is mandatory to avoid the well know detrimental effects of waveform distortions. This paper proposes to apply the Iterative Harmonic Analysis (IHA) to assess the waveform distortion levels of a low voltage distribution system including a high number of PEVs battery chargers. This method guarantees high results accuracy since it considers the interactions between the supply voltage distortion and the battery charger current harmonics; moreover, it allows to know the electrical state of the distribution systems both at the fundamental and at harmonic frequencies. In the last part of the paper, the IHA is applied to assess the harmonic distortions of the Cigré European LV Unbalanced Distribution Network, considering different number and location of single phase and three phase battery chargers.
{"title":"The Iterative Harmonic Analysis for Waveform Distortion Assessment of Low Voltage Distribution Systems with Plug-in Electric Vehicles","authors":"M. Carpita, P. Caramia, E. Ascione, D. Proto, P. Varilone","doi":"10.1109/SPEEDAM.2018.8445356","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445356","url":null,"abstract":"Plug in electric vehicles (PEVs) are expected to playa significant role not only for the economic and environmental benefits they involve but also for the ancillary services they can provide to the supplying grid. However, the inclusion of the electrical vehicles in distribution systems leads to a series of challenges in grid operation. The PEVs battery chargers include static converters that can cause high waveform distortion levels in the line currents and bus voltages of the grid. Then, a harmonic analysis of the whole system is mandatory to avoid the well know detrimental effects of waveform distortions. This paper proposes to apply the Iterative Harmonic Analysis (IHA) to assess the waveform distortion levels of a low voltage distribution system including a high number of PEVs battery chargers. This method guarantees high results accuracy since it considers the interactions between the supply voltage distortion and the battery charger current harmonics; moreover, it allows to know the electrical state of the distribution systems both at the fundamental and at harmonic frequencies. In the last part of the paper, the IHA is applied to assess the harmonic distortions of the Cigré European LV Unbalanced Distribution Network, considering different number and location of single phase and three phase battery chargers.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122847557","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445241
R. Bojoi, L. Boggero, Sabrina Comino, M. Fioriti, A. Tenconi, S. Vaschetto
This paper explores from the electrical standpoint the enabling technologies for hybrid-electric Unmanned Aerial Vehicles (UAVs) designed for medium-altitude long-endurance mission profiles. In particular, with reference to a baseline light aircraft formerly propelled by a gasoline piston engine, different hybrid-electric architectures are compared in terms of power flow management, safety increase and overall aircraft weight reduction. For the selected hybrid solution, the discussion provides a comprehensive overview on the main features and constraints that have driven the definition of the electric system layout and the identification of the main specifications for the multiphase power converters and electric machine.
{"title":"Multiphase Drives for Hybrid-Electric Propulsion in Light Aircrafts: a Viable Solution","authors":"R. Bojoi, L. Boggero, Sabrina Comino, M. Fioriti, A. Tenconi, S. Vaschetto","doi":"10.1109/SPEEDAM.2018.8445241","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445241","url":null,"abstract":"This paper explores from the electrical standpoint the enabling technologies for hybrid-electric Unmanned Aerial Vehicles (UAVs) designed for medium-altitude long-endurance mission profiles. In particular, with reference to a baseline light aircraft formerly propelled by a gasoline piston engine, different hybrid-electric architectures are compared in terms of power flow management, safety increase and overall aircraft weight reduction. For the selected hybrid solution, the discussion provides a comprehensive overview on the main features and constraints that have driven the definition of the electric system layout and the identification of the main specifications for the multiphase power converters and electric machine.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122859297","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445199
L. Dinca, M. Iliescu, J. Corcau, M. Gheorghe
This paper presents a method for quoting of necessary power of a hybrid power source on board of High Altitude Pseudo-Satellites (HAPS). Considered power source contains as main energy sources a fuel cell and a photovoltaic panel which function complementary daytime and nighttime. For unexpected situations a small capacity battery is provided in the system aiming to ensure the system functioning along 15 minutes. Photovoltaic panels feed also an electrolyzer which uses water produced by the fuel cell and obtains hydrogen in order to recover the fuel reserve on board for next night functioning.
{"title":"Main Parameters Quoting for Components of a Hybrid Power Source for HAPS","authors":"L. Dinca, M. Iliescu, J. Corcau, M. Gheorghe","doi":"10.1109/SPEEDAM.2018.8445199","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445199","url":null,"abstract":"This paper presents a method for quoting of necessary power of a hybrid power source on board of High Altitude Pseudo-Satellites (HAPS). Considered power source contains as main energy sources a fuel cell and a photovoltaic panel which function complementary daytime and nighttime. For unexpected situations a small capacity battery is provided in the system aiming to ensure the system functioning along 15 minutes. Photovoltaic panels feed also an electrolyzer which uses water produced by the fuel cell and obtains hydrogen in order to recover the fuel reserve on board for next night functioning.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123864726","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445381
Shiu Mochiyama, T. Hikihara
The power packet dispatching system has been proposed toward flexible power management with multiple dispersed sources. In the system, electric power is transferred as a sequence of pulse-shaped units with information tags attached in voltage logic waveforms. This paper discusses the application of the system to the close-loop control of a manipulator. Through experiments, we confirm that information and power are integrated to transfer both the control signal and power required for the control. The results indicate that the proposed system can be applied to a wide range of electrically driven systems instead of the conventional power supply with continuous power flow.
{"title":"Experimental Implementation of Power Packet Density Modulation to Close-loop Control of Manipulator","authors":"Shiu Mochiyama, T. Hikihara","doi":"10.1109/SPEEDAM.2018.8445381","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445381","url":null,"abstract":"The power packet dispatching system has been proposed toward flexible power management with multiple dispersed sources. In the system, electric power is transferred as a sequence of pulse-shaped units with information tags attached in voltage logic waveforms. This paper discusses the application of the system to the close-loop control of a manipulator. Through experiments, we confirm that information and power are integrated to transfer both the control signal and power required for the control. The results indicate that the proposed system can be applied to a wide range of electrically driven systems instead of the conventional power supply with continuous power flow.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121157725","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445327
H. Nademi, Z. Soghomonian
In modular and scalable matrix converters, which are deployed to interface the medium/high-power grids, there is huge interest to enhance the high computational burden of prevalent control schemes, such as model predictive control (MPC). In this paper, the operational performance of the Modular Multilevel Matrix Converter (M3C) is studied to transfer power generated by offshore wind farm and to interconnect the three-phase AC grid. The two-level structure control design is realized, of which a first-level predictive controller based on a Finite Control-Set Model Predictive Control (FCS-MPC) generates an initial controlled variables to regulate the converter branch voltages and currents. The second-level iterative controller is embedded into an integrated perturbation analysis and sequential quadratic programming (IPA-SQP) algorithm for handling uncertainty and updating weighting factors. The complete control scheme aiming to reduce sampling time and optimization of variable constraints, thus its optimality is proved through simulation analysis for a designed system with an equal or low operating frequency at the input or output AC systems for a M3C with 9-levelline-to-line voltage.
{"title":"A Robust Frequency Control Technique for Wind Power Conversion with Two-Level Structure Predictive Method","authors":"H. Nademi, Z. Soghomonian","doi":"10.1109/SPEEDAM.2018.8445327","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445327","url":null,"abstract":"In modular and scalable matrix converters, which are deployed to interface the medium/high-power grids, there is huge interest to enhance the high computational burden of prevalent control schemes, such as model predictive control (MPC). In this paper, the operational performance of the Modular Multilevel Matrix Converter (M3C) is studied to transfer power generated by offshore wind farm and to interconnect the three-phase AC grid. The two-level structure control design is realized, of which a first-level predictive controller based on a Finite Control-Set Model Predictive Control (FCS-MPC) generates an initial controlled variables to regulate the converter branch voltages and currents. The second-level iterative controller is embedded into an integrated perturbation analysis and sequential quadratic programming (IPA-SQP) algorithm for handling uncertainty and updating weighting factors. The complete control scheme aiming to reduce sampling time and optimization of variable constraints, thus its optimality is proved through simulation analysis for a designed system with an equal or low operating frequency at the input or output AC systems for a M3C with 9-levelline-to-line voltage.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129098883","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445294
A. Del Pizzc, L. D. di Noia, D. Lauria, M. Crispino, A. Cantiello, F. Mottola
The containment of voltage variation within admissible ranges is one of the most challenging power quality issue to address in modern low voltage distribution networks. This is due to the widespread use of highly intermittent distributed generators as well as the increasing presence of some types of loads which imply severe variability (e.g., plug-in electric vehicles). The complexity of the voltage regulation is also emphasized by the integration of different devices able to participate at the voltage regulation. An emerging solution is the use of on-load tap changers for the transformers supplying low voltage networks. Due the high fluctuation of the voltages, the main drawback in using the on-load tap changer is the increased number of operation and the corresponding reduction of the lifetime duration. To address this issue., in this paper a new technique is proposed which allows controlling the on-load tap changer by improving the network voltage profile and, at the same time, preserving the lifetime of the tap changer. To do that, a control strategy is formulated in terms of optimization problem whose objective is the minimization of bus voltage fluctuation while limiting the number of operation of the tap changer and satisfying other constraints related to the network and its components. The results of a numerical application are reported and discussed to show the feasibility of the proposed approach.
{"title":"Control of OLTC distribution transformer addressing voltage regulation and lifetime preservation","authors":"A. Del Pizzc, L. D. di Noia, D. Lauria, M. Crispino, A. Cantiello, F. Mottola","doi":"10.1109/SPEEDAM.2018.8445294","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445294","url":null,"abstract":"The containment of voltage variation within admissible ranges is one of the most challenging power quality issue to address in modern low voltage distribution networks. This is due to the widespread use of highly intermittent distributed generators as well as the increasing presence of some types of loads which imply severe variability (e.g., plug-in electric vehicles). The complexity of the voltage regulation is also emphasized by the integration of different devices able to participate at the voltage regulation. An emerging solution is the use of on-load tap changers for the transformers supplying low voltage networks. Due the high fluctuation of the voltages, the main drawback in using the on-load tap changer is the increased number of operation and the corresponding reduction of the lifetime duration. To address this issue., in this paper a new technique is proposed which allows controlling the on-load tap changer by improving the network voltage profile and, at the same time, preserving the lifetime of the tap changer. To do that, a control strategy is formulated in terms of optimization problem whose objective is the minimization of bus voltage fluctuation while limiting the number of operation of the tap changer and satisfying other constraints related to the network and its components. The results of a numerical application are reported and discussed to show the feasibility of the proposed approach.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116684005","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445357
Driss Oulad-Abbou, S. Doubabi, A. Rachid, Pablo García-Triviño, M. Luis, Fernández-Ramírez Carlos, A. García-Vázquez, Raúl Sarrias-Mena
Due to its high-efficiency characteristics, the three-level boost DC-DC converter is widely used as a PV fed converter to connect PV panels to the DC bus. In our previous work [13], a decentralized energy management system for EV fast charging station was proposed where a conventional two-level boost DC-DC converter was used as a PV fed converter. In this paper, this converter is replaced by a three-level one. MPPT, output voltage and capacitors voltage balance are carried out, which facilitate the converter implementation on the charging station.
{"title":"Combined control of MPPT, output voltage regulation and capacitors voltage balance for three-level DC/DC boost converter in PV- EV charging stations","authors":"Driss Oulad-Abbou, S. Doubabi, A. Rachid, Pablo García-Triviño, M. Luis, Fernández-Ramírez Carlos, A. García-Vázquez, Raúl Sarrias-Mena","doi":"10.1109/SPEEDAM.2018.8445357","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445357","url":null,"abstract":"Due to its high-efficiency characteristics, the three-level boost DC-DC converter is widely used as a PV fed converter to connect PV panels to the DC bus. In our previous work [13], a decentralized energy management system for EV fast charging station was proposed where a conventional two-level boost DC-DC converter was used as a PV fed converter. In this paper, this converter is replaced by a three-level one. MPPT, output voltage and capacitors voltage balance are carried out, which facilitate the converter implementation on the charging station.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328719","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445305
Masahiro Aoyama, T. Noguchi
This paper proposes a consequent pole type pancake-axial-gap variable magnetic flux PM-motor. The unique point of the proposed motor is that variable magnetic flux can be realized by the armature magnetomotive force, rotation speed and/or current phase. The back yokeless stator is adopted to constitute a series magnetic circuit, and the variable magnetic flux is realized by passively changing the magnetization amount of the image pole (iron pole) of the consequent pole structure. The magnetic circuit topology that realizes the above will be explained, and the magnetic circuit design of the optimum variable magnetic flux method will be studied by FE-analysis. In addition, the basic drive performance will be clarified by FE-analysis. Furthermore, the prototype for principle verification will be revealed.
{"title":"Automatic Variable Magnetic Flux Technique in Consequent Pole Type PM-Motor Utilizing Space Harmonic","authors":"Masahiro Aoyama, T. Noguchi","doi":"10.1109/SPEEDAM.2018.8445305","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445305","url":null,"abstract":"This paper proposes a consequent pole type pancake-axial-gap variable magnetic flux PM-motor. The unique point of the proposed motor is that variable magnetic flux can be realized by the armature magnetomotive force, rotation speed and/or current phase. The back yokeless stator is adopted to constitute a series magnetic circuit, and the variable magnetic flux is realized by passively changing the magnetization amount of the image pole (iron pole) of the consequent pole structure. The magnetic circuit topology that realizes the above will be explained, and the magnetic circuit design of the optimum variable magnetic flux method will be studied by FE-analysis. In addition, the basic drive performance will be clarified by FE-analysis. Furthermore, the prototype for principle verification will be revealed.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114158157","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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