Pub Date : 2020-10-11DOI: 10.1109/ECCE44975.2020.9236191
Provides an abstract of the tutorial presentation and may include a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings.
提供教程演示的摘要，可能包括演示者的简短专业简介。完整的报告没有作为会议记录的一部分提供出版。
{"title":"ECCE 2020 Tutorial","authors":"","doi":"10.1109/ECCE44975.2020.9236191","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9236191","url":null,"abstract":"Provides an abstract of the tutorial presentation and may include a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122647545","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235970
Guanliang Liu, Weiyang Zhou, Qunfang Wu, Mengqi Wang
How to improve power converter efficiency and power density always being a hot research topic, multiple optimization has been applied to obtain better converter performance. This paper combines interleaved boost converter design and external inductor design to build a mathematical model of an overall system. The optimization variables are the inductor value, inductor dimension parameters, and switching frequency. The optimization objectives are to increase the overall system efficiency, to decrease the inductor volume, and to lower the current ripple. A multiple-objective optimization non-dominated sorting genetic algorithm (NSGA-II) has been applied to solve the proposed model problem. An experiment test bench has also been set up to verify the calculation results.
{"title":"Overall Interleaved Boost Converter Multiple-Objective Optimization Design","authors":"Guanliang Liu, Weiyang Zhou, Qunfang Wu, Mengqi Wang","doi":"10.1109/ECCE44975.2020.9235970","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235970","url":null,"abstract":"How to improve power converter efficiency and power density always being a hot research topic, multiple optimization has been applied to obtain better converter performance. This paper combines interleaved boost converter design and external inductor design to build a mathematical model of an overall system. The optimization variables are the inductor value, inductor dimension parameters, and switching frequency. The optimization objectives are to increase the overall system efficiency, to decrease the inductor volume, and to lower the current ripple. A multiple-objective optimization non-dominated sorting genetic algorithm (NSGA-II) has been applied to solve the proposed model problem. An experiment test bench has also been set up to verify the calculation results.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122595708","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9236181
Ashad Farhan, M. Johnson, K. Hanson, E. Severson
The goal of electric motor technology is to deliver maximum power in as compact of a form factor as efficiently and reliably as possible. Recent advancements in magnetic materials and semiconductor devices are enabling a new class of electric motors which utilize ultra high rotational speeds (100,000+ RPM) to increase power density. The technology is limited by shortcomings related to motor bearings, primarily insufficient lifetime and rotor dynamics that limit the speed-power capability of the electric machine. This paper investigates the design of a magnetically levitated, ultra-high speed motor based around a bearingless permanent magnet motor topology to solve these challenges. The design targets a speed-power capability of 160,000 RPM and 5.5 kW for a hydrogen fuel cell compressor. This rating is amongst the highest speed-power designs that utilize conventional bearings and would expand the limits of speed-power rating of a bearingless motor. A detailed multi-physics modeling framework is developed and coupled to a multi-objective optimization algorithm to explore the design space. An optimal design is proposed and investigated for prototype fabrication. Experimental validation of the modeling framework is provided with low speed and stationary test results.
{"title":"Design of an Ultra-High Speed Bearingless Motor for Significant Rated Power","authors":"Ashad Farhan, M. Johnson, K. Hanson, E. Severson","doi":"10.1109/ECCE44975.2020.9236181","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9236181","url":null,"abstract":"The goal of electric motor technology is to deliver maximum power in as compact of a form factor as efficiently and reliably as possible. Recent advancements in magnetic materials and semiconductor devices are enabling a new class of electric motors which utilize ultra high rotational speeds (100,000+ RPM) to increase power density. The technology is limited by shortcomings related to motor bearings, primarily insufficient lifetime and rotor dynamics that limit the speed-power capability of the electric machine. This paper investigates the design of a magnetically levitated, ultra-high speed motor based around a bearingless permanent magnet motor topology to solve these challenges. The design targets a speed-power capability of 160,000 RPM and 5.5 kW for a hydrogen fuel cell compressor. This rating is amongst the highest speed-power designs that utilize conventional bearings and would expand the limits of speed-power rating of a bearingless motor. A detailed multi-physics modeling framework is developed and coupled to a multi-objective optimization algorithm to explore the design space. An optimal design is proposed and investigated for prototype fabrication. Experimental validation of the modeling framework is provided with low speed and stationary test results.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123022392","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9236081
Ornella Stiscia, S. Rubino, S. Vaschetto, A. Cavagnino, A. Tenconi
In the context of a progressive component virtualization for energetic assessments in variable speed and load operations, this paper presents a methodology for computing the efficiency maps of three-phase induction motors. The proposed approach is based on the conventional machine equivalent circuit to quickly obtain a set of efficiency maps at different machine temperatures and supply voltage levels. The well-known no-load and locked-rotor tests are used to determine the motor parameters at different frequencies and voltages, taking into account the machine nonlinearities and the iron losses. The approach has been validated on an 11 kW, 4 poles, 50 Hz induction motor tested in different operating conditions.
{"title":"Off-Line Efficiency Mapping of Induction Motors Operated in Wide Torque-Speed Ranges","authors":"Ornella Stiscia, S. Rubino, S. Vaschetto, A. Cavagnino, A. Tenconi","doi":"10.1109/ECCE44975.2020.9236081","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9236081","url":null,"abstract":"In the context of a progressive component virtualization for energetic assessments in variable speed and load operations, this paper presents a methodology for computing the efficiency maps of three-phase induction motors. The proposed approach is based on the conventional machine equivalent circuit to quickly obtain a set of efficiency maps at different machine temperatures and supply voltage levels. The well-known no-load and locked-rotor tests are used to determine the motor parameters at different frequencies and voltages, taking into account the machine nonlinearities and the iron losses. The approach has been validated on an 11 kW, 4 poles, 50 Hz induction motor tested in different operating conditions.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114590840","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235963
Ramanuja Panigrahi, S. Mishra, A. Joshi
This paper presents a simple procedure to obtain a comprehensive set of non-isolated DC-DC converter topologies for the specified voltage gain expression. The proposed method utilizes the principle of inductor flux balance as a synthesis tool. The symmetries in the flux balance equations are identified and are used to obtain the complete set of unique converter topologies. The proposed method is applied to synthesize a comprehensive set quadratic boost topology. The total number of unique q-boost topologies is found to be eleven. The operation and feasibility of two novel topologies, identified by the proposed theory, are verified experimentally.
{"title":"Synthesizing a Comprehensive Set of Converter Topologies for a Specified Voltage Gain","authors":"Ramanuja Panigrahi, S. Mishra, A. Joshi","doi":"10.1109/ECCE44975.2020.9235963","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235963","url":null,"abstract":"This paper presents a simple procedure to obtain a comprehensive set of non-isolated DC-DC converter topologies for the specified voltage gain expression. The proposed method utilizes the principle of inductor flux balance as a synthesis tool. The symmetries in the flux balance equations are identified and are used to obtain the complete set of unique converter topologies. The proposed method is applied to synthesize a comprehensive set quadratic boost topology. The total number of unique q-boost topologies is found to be eleven. The operation and feasibility of two novel topologies, identified by the proposed theory, are verified experimentally.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122064381","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235692
Ryo Haneda, H. Akagi
This paper focuses on precise conversion-efficiency measurement of a bidirectional isolated dc-dc converter using the 1.2-kV 400-A SiC-MOSFET/SBD H-bridge modules, along with a unity-turns-ration transformer. A specially-designed test bench for efficiency measurement is characterized by the cascade connection of the two identical 750-V 100-kW 16-kHz bidirectional isolated dc-dc converters. Although the test bench is equipped with two identical unity-turns-ratio transformers, both converters are capable of operating at different voltage ratios ranging from 0.87 to 1.13. Experimental results verify that the whole conversion efficiency from the dc input to the dc output is as high as 98.9% at the rated power of 100 kW with a voltage ratio of 1.13, and 98.6% at 100 kW with another voltage ratio of 0.87, excluding an auxiliary power loss of 82 W.
本文重点研究了使用1.2 kv 400 a SiC-MOSFET/SBD h桥模块以及单位匝数变压器的双向隔离dc-dc变换器的精确转换效率测量。一个专门设计的效率测量测试台的特点是两个相同的750-V 100-kW 16-kHz双向隔离dc-dc转换器级联连接。虽然试验台配备了两个相同的单位匝比变压器，但两个变流器都能够在0.87至1.13的不同电压比下工作。实验结果表明，在额定功率为100kw，电压比为1.13时，直流输入到直流输出的整体转换效率高达98.9%，在另一电压比为0.87时，在100kw时，整体转换效率高达98.6%，其中不包括82 W的辅助功率损耗。
{"title":"Experimental Characterization of a 750-V 100-kW 16-kHz Bidirectional Isolated DC-DC Converter With a Unity-Turns-Ratio Transformer at Different Voltage Ratios","authors":"Ryo Haneda, H. Akagi","doi":"10.1109/ECCE44975.2020.9235692","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235692","url":null,"abstract":"This paper focuses on precise conversion-efficiency measurement of a bidirectional isolated dc-dc converter using the 1.2-kV 400-A SiC-MOSFET/SBD H-bridge modules, along with a unity-turns-ration transformer. A specially-designed test bench for efficiency measurement is characterized by the cascade connection of the two identical 750-V 100-kW 16-kHz bidirectional isolated dc-dc converters. Although the test bench is equipped with two identical unity-turns-ratio transformers, both converters are capable of operating at different voltage ratios ranging from 0.87 to 1.13. Experimental results verify that the whole conversion efficiency from the dc input to the dc output is as high as 98.9% at the rated power of 100 kW with a voltage ratio of 1.13, and 98.6% at 100 kW with another voltage ratio of 0.87, excluding an auxiliary power loss of 82 W.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116834486","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235405
Jingjing Qi, Xuezhi Wu, Yuming Zhao, Jingdou Liu
In order to extend the output voltage range of buck converter, a new topology of two-stage buck converter with switched capacitor is proposed in this paper. An input inductor is adopted in the first stage of the converter to suppress the current spikes caused by switched capacitor. At the same time, when the input inductance and the switching capacitance are less than or equal to the theoretical values, the first stage can realize zero current switching (ZCS).To achieve the ZCS of other switching devices, an auxiliary resonant circuit is added in the second stage of the converter, and it is necessary to ensure that the switching on time in advance of the auxiliary switch is within the theoretical range. This converter has the features of high step-down ratio, soft switching on/off, and low device stress. After the working principle and the characteristics of the converter are introduced in detail, the feasibility of the proposed topology is verified by simulation and experimental results.
{"title":"High Step-down ZCS Buck Converter with Switched Capacitor","authors":"Jingjing Qi, Xuezhi Wu, Yuming Zhao, Jingdou Liu","doi":"10.1109/ECCE44975.2020.9235405","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235405","url":null,"abstract":"In order to extend the output voltage range of buck converter, a new topology of two-stage buck converter with switched capacitor is proposed in this paper. An input inductor is adopted in the first stage of the converter to suppress the current spikes caused by switched capacitor. At the same time, when the input inductance and the switching capacitance are less than or equal to the theoretical values, the first stage can realize zero current switching (ZCS).To achieve the ZCS of other switching devices, an auxiliary resonant circuit is added in the second stage of the converter, and it is necessary to ensure that the switching on time in advance of the auxiliary switch is within the theoretical range. This converter has the features of high step-down ratio, soft switching on/off, and low device stress. After the working principle and the characteristics of the converter are introduced in detail, the feasibility of the proposed topology is verified by simulation and experimental results.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117238261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The switching frequency of the high-power traction drive is relatively low, and the wide speed range results in a large variation of carrier ratio. Therefore, a hybrid pulse width modulation (PWM) strategy needs to be designed to meet the requirements over the full speed operation. In this paper, the torque control of induction motor drives under low switching frequency is investigated. Combining synchronized space vector PWM schemes with the model predictive flux control, a control strategy is developed that does not require phase compensation of the voltage reference and smooth transition between different PWM modes is achieved. Simulation, hardware-in-the-loop and experimental tests validate the effectiveness of the developed method.
{"title":"Model Predictive Flux Control Based on Synchronous Pulse-Width Modulation","authors":"Haitao Yang, Peng Huang, Yongchang Zhang, Jianguo Zhu","doi":"10.1109/ECCE44975.2020.9236263","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9236263","url":null,"abstract":"The switching frequency of the high-power traction drive is relatively low, and the wide speed range results in a large variation of carrier ratio. Therefore, a hybrid pulse width modulation (PWM) strategy needs to be designed to meet the requirements over the full speed operation. In this paper, the torque control of induction motor drives under low switching frequency is investigated. Combining synchronized space vector PWM schemes with the model predictive flux control, a control strategy is developed that does not require phase compensation of the voltage reference and smooth transition between different PWM modes is achieved. Simulation, hardware-in-the-loop and experimental tests validate the effectiveness of the developed method.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129744835","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235932
Tianze Meng, Pinjia Zhang
Demagnetization of permanent magnet machines is a crucial failure mode, which may lead to catastrophic failures. The thermal stress of the permanent magnet synchronous motor (PMSM) is the main factor leading to such malfunction. It is critical to monitor the rotor temperature by tracking the permanent flux. Based on the characteristic that the magnitude of the magnet flux linkage decreases as the temperature increases with a linear relationship, a novel non-invasive method is proposed to estimate the temperature of permanent magnet (PM) in PMSM. To solve the rank-deficient problem of the state estimation, the proposed method utilizes two Extended Kalman filters to estimate the magnet flux linkage and stator inductances information respectively. Meanwhile, the estimation results of flux and inductances message are used as known quantities in the other estimation algorithm, which forms an iterative algorithm process. When the updating of flux and inductances are executed simultaneously, the influence of magnetic saturation is compensated automatically. Simulation and experimental tests are implemented to verify the accuracy and feasibility of the proposed method. With errors less than 4 °C, within an acceptable range, the capability of providing non-invasive monitoring on the rotor temperature with high precision is proven.
{"title":"A Non-invasive Dual-EKF-based Rotor Temperature Estimation technique for Permanent Magnet Machines","authors":"Tianze Meng, Pinjia Zhang","doi":"10.1109/ECCE44975.2020.9235932","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235932","url":null,"abstract":"Demagnetization of permanent magnet machines is a crucial failure mode, which may lead to catastrophic failures. The thermal stress of the permanent magnet synchronous motor (PMSM) is the main factor leading to such malfunction. It is critical to monitor the rotor temperature by tracking the permanent flux. Based on the characteristic that the magnitude of the magnet flux linkage decreases as the temperature increases with a linear relationship, a novel non-invasive method is proposed to estimate the temperature of permanent magnet (PM) in PMSM. To solve the rank-deficient problem of the state estimation, the proposed method utilizes two Extended Kalman filters to estimate the magnet flux linkage and stator inductances information respectively. Meanwhile, the estimation results of flux and inductances message are used as known quantities in the other estimation algorithm, which forms an iterative algorithm process. When the updating of flux and inductances are executed simultaneously, the influence of magnetic saturation is compensated automatically. Simulation and experimental tests are implemented to verify the accuracy and feasibility of the proposed method. With errors less than 4 °C, within an acceptable range, the capability of providing non-invasive monitoring on the rotor temperature with high precision is proven.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129850425","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235960
Utkarsh Sharma, Bhim Singh
The ceiling fan motors have been most outlooked motors from an efficiency point of view. However, with an increasing number of such motors in residential and commercial sectors, the need for efficient ceiling fans has arisen. The design of the outer rotor single-phase induction motor (SP-IM) for ceiling fan, is a nonlinear problem involving several design variables. In this work, time-stepping 2D FEA (Two Dimension-Finite Element Analysis) is used to design an energy-efficient ceiling fan SP-IM consuming below 35 W in accordance with BEE (Bureau of Energy Efficiency) star ratings and IS374 standard. A new design is presented and compared for better performance and air delivery with commercial blades. Various performance indices of the new design are presented, including the overall losses and their distribution, airgap flux density plot, and its harmonic spectrum.
{"title":"Design of An Energy Efficient Outer Rotor Ceiling Fan Single Phase Induction Motor","authors":"Utkarsh Sharma, Bhim Singh","doi":"10.1109/ECCE44975.2020.9235960","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235960","url":null,"abstract":"The ceiling fan motors have been most outlooked motors from an efficiency point of view. However, with an increasing number of such motors in residential and commercial sectors, the need for efficient ceiling fans has arisen. The design of the outer rotor single-phase induction motor (SP-IM) for ceiling fan, is a nonlinear problem involving several design variables. In this work, time-stepping 2D FEA (Two Dimension-Finite Element Analysis) is used to design an energy-efficient ceiling fan SP-IM consuming below 35 W in accordance with BEE (Bureau of Energy Efficiency) star ratings and IS374 standard. A new design is presented and compared for better performance and air delivery with commercial blades. Various performance indices of the new design are presented, including the overall losses and their distribution, airgap flux density plot, and its harmonic spectrum.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128368168","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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