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Single-Phase AC-DC-AC Multilevel Converter with Transformers Applied to Grid Voltage Compensation 带变压器的单相交-直-交多电平变换器用于电网电压补偿
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558243
R. P. de Lacerda, C. Jacobina, E. Fabrício, P. L. Rodrigues
{"title":"Single-Phase AC-DC-AC Multilevel Converter with Transformers Applied to Grid Voltage Compensation","authors":"R. P. de Lacerda, C. Jacobina, E. Fabrício, P. L. Rodrigues","doi":"10.1109/ECCE.2018.8558243","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558243","url":null,"abstract":"This paper presents a single-phase ac-dc-ac multilevel converter composed of two three-leg converters series-connected throughout two transformers (one on the grid side and one on the load side), sharing the same dc-link, The proposed converter can mitigate grid fundamental overvoltage and can be applied to systems with equal or different voltage levels at the input and output. Besides, the converter allows to feed the load with sinusoidal voltages (with constant amplitude and frequency) and to operate with sinusoidal grid current with high power factor. Circuit model equations, PWM technique based on space vector approaches and a control system are presented. The proposed topology is compared with the conventional one in terms of harmonic distortions and semiconductor power losses. Simulation and experimental results under same conditions are provided for validation purposes.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133402843","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}
引用次数: 2
Virtual Inertia Emulation using Commercial Off-The-Shelf Inverters 使用商用现成逆变器的虚拟惯性仿真
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8557592
Ujjwol Tamrakar, Fernando B. Dos Reis, André Luna, Dipesh Shrestha, Robert S. Fourney, R. Tonkoski
{"title":"Virtual Inertia Emulation using Commercial Off-The-Shelf Inverters","authors":"Ujjwol Tamrakar, Fernando B. Dos Reis, André Luna, Dipesh Shrestha, Robert S. Fourney, R. Tonkoski","doi":"10.1109/ECCE.2018.8557592","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557592","url":null,"abstract":"Virtual inertia based control of renewable energy sources (RESs) helps to enhance the frequency stability of power systems. In this paper, a Control Area Network (CAN) communication-based method is demonstrated to emulate virtual inertia using commercial off-the-shelf inverters. This allows the currently installed systems to be retrofitted with virtual inertia in a cost-effective manner which would allow for higher RES penetration in power systems. The proof-of-concept is demonstrated using a Xantrex XW6048 hybrid inverter/charger and OPAL-RT real-time digital simulator. Results show that CAN-based communication can be an effective way to reduce frequency variations in the power system.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133295822","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}
引用次数: 2
Next Generation Integrated Drive, NGID: A Novel Approach to Thermal and Electrical Integration of High Power Density Drives in Automotive Applications 下一代集成驱动，NGID:汽车应用中高功率密度驱动的热电集成新方法
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558001
L. de Lillo, B. Ahmadi, L. Empringham, Mark C. Johnson, J. Espina, Robert Abebe
{"title":"Next Generation Integrated Drive, NGID: A Novel Approach to Thermal and Electrical Integration of High Power Density Drives in Automotive Applications","authors":"L. de Lillo, B. Ahmadi, L. Empringham, Mark C. Johnson, J. Espina, Robert Abebe","doi":"10.1109/ECCE.2018.8558001","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558001","url":null,"abstract":"An innovative arrangement for the electrothermal integration of power electronics and motor in a high power drive systems is presented within this paper with a focus on automotive traction applications. Important challenges which needed to be overcome within this research work consist firstly of the coupling of the thermal design of the switching power modules and of the permanent magnet (PM) electric motor and secondly, the integration of high speed switching devices into the motor housing, without compromising the performance of the transistors. To provide a solution to these challenges, an integrated liquid cooling system for both the stator windings and the power devices has been designed. A bespoke power module has been designed and manufactured in order to meet the specific requirements of this packaging approach. The control structure of the drive system is also highlighted together with initial commissioning results.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133421326","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}
引用次数: 10
Optimal Design of Outer Rotor Switched Reluctance Machines for Direct Drive Rim Applications 直接驱动环用外转子开关磁阻电机的优化设计
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8557367
V. Rallabandi, Jie Wu, A. Cramer, D. Ionel, P. Zhou
{"title":"Optimal Design of Outer Rotor Switched Reluctance Machines for Direct Drive Rim Applications","authors":"V. Rallabandi, Jie Wu, A. Cramer, D. Ionel, P. Zhou","doi":"10.1109/ECCE.2018.8557367","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557367","url":null,"abstract":"This paper discusses the optimal design of external rotor switched reluctance (SR) machines for direct drive applications. The machines considered for this study include SR motors with a higher number of rotor poles than stator teeth; machines employing a larger number of stator teeth than rotor poles, as well as machines with segmented rotor constructions. Differential evolution is utilized for the optimization, and two objectives, of mass and loss are considered. A comprehensive comparison of the mass, loss, and inverter VA rating required to meet target torque for all three studied machine was performed, in which, hundreds of candidate designs were analyzed. The calculations are also benchmarked with results from a prototype motor.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131460908","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}
引用次数: 3
Fast Solution of Rotor Losses in Inverter-Fed Cage Induction Motors with Skewed Slots 斜槽型逆变式笼型异步电动机转子损耗的快速求解
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558354
Y. Zhan, Libo Ma, Haisen Zhao, Guorui Xu, Dongdong Zhang
{"title":"Fast Solution of Rotor Losses in Inverter-Fed Cage Induction Motors with Skewed Slots","authors":"Y. Zhan, Libo Ma, Haisen Zhao, Guorui Xu, Dongdong Zhang","doi":"10.1109/ECCE.2018.8558354","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558354","url":null,"abstract":"The conventional calculation of rotor losses in cage induction motors by time-stepping finite element method needs a full slip-cycle calculation of the rotor flux density and the bar current density waves to include the effect of fundamental and harmonic components. This calculation is extremely expensive in CPU time when handling motors with skewed slots and inverter supply. This paper proposes a technique that reproduces the full slip-cycle waves by utilizing both the time-varying and the spatial information of the rotor electromagnetic quantities so that the CPU time of the simulation can be saved significantly. The more rotor bars per pole pair the induction motor has, the less CPU time the simulation needs. The proposed technique is adopted for the rotor losses of a 5.5-kW induction motor, and the results are compared for validation with those obtained by the conventional method and by a test.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128867058","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}
引用次数: 5
Lumped-Parameter and 3D Thermal Model of a PMASynRM Under Fault Conditions with Asymmetric Temperature Distribution 温度分布不对称故障条件下PMASynRM的集总参数和三维热模型
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8557727
Yanwen Shi, Jiabin Wang, Bo Wang
{"title":"Lumped-Parameter and 3D Thermal Model of a PMASynRM Under Fault Conditions with Asymmetric Temperature Distribution","authors":"Yanwen Shi, Jiabin Wang, Bo Wang","doi":"10.1109/ECCE.2018.8557727","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557727","url":null,"abstract":"This paper develops a 3D transient thermal model and a lumped-parameter (LP) thermal model to predict the asymmetric temperature distribution in a triple redundant 9-phase permanent magnet-assisted synchronous reluctance machine (PMASynRM) under fault conditions. The predicted temperatures by the LP thermal model will be compared with those by the 3D thermal model in order to validate the developed LP thermal model. The transient and steady-state temperatures predicted by the 3D thermal model which accounts a number of practical issues will be comprehensively compared with the test results. The relative merits of the two thermal models are discussed. It is shown that both the models have good accuracy in predicting the machine thermal behavior under fault conditions and can be chosen according to the requirements.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127425939","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}
引用次数: 2
Accelerated Life Test of Bearing Under Electrical Stress 电应力下轴承加速寿命试验
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558127
Jun-Hyuk Im, Junkyu Park, J. Hur
{"title":"Accelerated Life Test of Bearing Under Electrical Stress","authors":"Jun-Hyuk Im, Junkyu Park, J. Hur","doi":"10.1109/ECCE.2018.8558127","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558127","url":null,"abstract":"This study proposes the method of remaining useful life estimation based on accelerated life test. To estimate the remaining useful life of bearing, the confidence of accelerated life test need to be validated. First, the properties of bearing depend on bearing state are analyzed. The accelerated life test conditions are established following bearing state. In addition, the fault condition is defined by the acoustic noise changes. Finally, the results by normal condition test and accelerated life test are compared to validate the confidence of accelerated life test. By validated accelerated life test, the remaining useful life and changes by bearing degradation can be investigated easily. In addition, accumulating historical data of degraded bearings can be facilitated.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127430989","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}
引用次数: 0
Impact of Modulation Methods on the Trade-Off between Investment and Operation Costs of a Medium-Voltage MMC-based STATCOM 调制方式对中压mmc型STATCOM投资与运行成本权衡的影响
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558220
Frederik Hahn, R. Teodorescu, G. Buticchi, Marco Liserre, C. Lascu
{"title":"Impact of Modulation Methods on the Trade-Off between Investment and Operation Costs of a Medium-Voltage MMC-based STATCOM","authors":"Frederik Hahn, R. Teodorescu, G. Buticchi, Marco Liserre, C. Lascu","doi":"10.1109/ECCE.2018.8558220","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558220","url":null,"abstract":"The Modular Multilevel Converter (MMC) has become a preferred topology in HVDC applications due to its full controllability and the huge number of voltage steps. The excellent waveform generation, even at low switching frequencies, makes the MMC also very attractive for medium-voltage applications. In this context, both the converter design and the modulation methods need to be properly studied. Minimum switching frequencies are achieved by appropriate modulation, however, sufficient energy needs to be stored in the capacitors. This is particularly a challenge for STATCOM applications because the stored energy in the system needs to be controlled from the ac grid. In this paper different modulation methods with various capacitor designs are investigated for this application to find an optimum trade-off between capacitor design (investment costs) and switching frequency (operation costs). The appropriate MMC design and operation have been proven by simulation and experimental results showing excellent waveforms without additional filtering.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133720143","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}
引用次数: 4
Single-Phase Inverter Scheme for Permanent Magnet Synchronous Motor Drive with Resonant Capacitor 谐振电容驱动永磁同步电机的单相逆变方案
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8557782
Kahyun Lee, Jung-Ik Ha
{"title":"Single-Phase Inverter Scheme for Permanent Magnet Synchronous Motor Drive with Resonant Capacitor","authors":"Kahyun Lee, Jung-Ik Ha","doi":"10.1109/ECCE.2018.8557782","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557782","url":null,"abstract":"This paper proposes a method of driving a permanent magnet synchronous motor (PMSM) with a single-phase inverter and a capacitor. The proposed system combines variable speed and load control capability of the inverter and phase shift capability of the capacitor to provide high power density. In the system, stator voltages can be boosted above the dc voltage by resonance of stator windings and capacitor. Due to wider available voltage range, the proposed system provides greater maximum power than the conventional three-phase drive. Also, it has wider operating range and reduced torque ripple than existing single-phase drives as power imbalance due to single-phase excitation is mitigated by capacitor. In this paper, operating characteristics and operable area of the proposed drive are analyzed, and a torque control method is proposed to minimize copper losses. The feasibility of the proposed PMSM drive and control method is verified by experiments with a 3.5kW PMSM.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115709142","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}
引用次数: 1
A Multi-Pulse AC-DC Converter Fed Multi-Level Inverter for Power Quality Improvement in VCIMD 一种用于VCIMD中电能质量改善的多脉冲交直流变换器馈电多电平逆变器
2018 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2018-09-01 DOI: 10.1109/ECCE.2018.8558283
Piyush Kant, Bhim Singh
{"title":"A Multi-Pulse AC-DC Converter Fed Multi-Level Inverter for Power Quality Improvement in VCIMD","authors":"Piyush Kant, Bhim Singh","doi":"10.1109/ECCE.2018.8558283","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558283","url":null,"abstract":"This work presents a variable frequency induction motor drive (VFIMD) for medium power application. A fifty-four pulse AC-DC converter is utilized on grid end of proposed IMD and a 27-level cascaded multi-level inverter (MLI) is utilized on the motor end. A fifty-four pulse converter makes the grid current nearly sinusoidal and reduces total harmonics distortion (THD) to a very low value. A ternary principle is utilized to select the DC-link voltages of a cascaded MLI in order to get a 27-levels in phase voltage. Proposed IMD has good power quality performances at both grid and motor end. Apart from this, proposed drive enhanced the performances of IMD. An area equalization modulation technique (AEMT) is proposed in this work for a 27-level cascaded MLI to switch this inverter at fundament frequency, which ensures the very low switching losses in the proposed VCIMD. A Simulink/MATLAB platform is utilized for modelling and design of proposed IMD and extensive simulation results from this model are presented here, to show the usefulness of proposed IMD for medium power application.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"7 15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124240377","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}
引用次数: 1
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