2020 IEEE Energy Conversion Congress and Exposition (ECCE)最新文献_第6页

An Active Damping Control Strategy for a Multi-Cell AC-DC Solid State Transformer 多单元交直流固态变压器的主动阻尼控制策略

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235759

V. Iyer, Srinivas Gulur, S. Bhattacharya

{"title":"An Active Damping Control Strategy for a Multi-Cell AC-DC Solid State Transformer","authors":"V. Iyer, Srinivas Gulur, S. Bhattacharya","doi":"10.1109/ECCE44975.2020.9235759","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235759","url":null,"abstract":"Cascaded system stability plays a critical role in the proper operation of any multi-stage power electronic based solid state transformer (SST). Hence, it is imperative to develop small-signal models for the SST system, evaluate its stability margins and develop control based solutions for unstable operating conditions to ensure reliable operation. In this respect, the present work elucidates a system level control strategy for a multi-cell AC-DC SST that can be used to interface with a medium voltage (MV) grid. An active damping control strategy based on classical feedback theory is proposed to improve the stability margins of the individual DC link voltages within the multi-cell SST. This is achieved by emulating a virtual resistance at the individual DC links by employing an active damping control strategy. Such a control strategy presents several attractive benefits such as simple control implementation and does not require additional current or voltage sensors. It is demonstrated through extensive circuit simulations that a single active damping controller can stabilize all the individual DC link voltages within the multi-cell SST leading to excellent performance of the SST system.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"76 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":"121178601","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

Influence of Airgap Length on Performance of High Power PM-Assisted Syn-Rel Machines 气隙长度对大功率永磁辅助同步电机性能的影响

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235712

T. Zou, D. Gerada, A. Walker, G. Vakil, S. La Rocca, A. La Rocca, K. Paciura, Richard Barden, E. Ernest, Shaohong Zhu, Naila Qayyum, A. McQueen, A. Bardalai, R. Ram kumar, A. Marfoli, C. Gerada

{"title":"Influence of Airgap Length on Performance of High Power PM-Assisted Syn-Rel Machines","authors":"T. Zou, D. Gerada, A. Walker, G. Vakil, S. La Rocca, A. La Rocca, K. Paciura, Richard Barden, E. Ernest, Shaohong Zhu, Naila Qayyum, A. McQueen, A. Bardalai, R. Ram kumar, A. Marfoli, C. Gerada","doi":"10.1109/ECCE44975.2020.9235712","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235712","url":null,"abstract":"In recent years, synchronous reluctance (Syn-Rel) machines are research hotspots in variable speed motor drives due to their robust rotor structure and wide constant power speed range (CPSR). More practically, when kVA limitation is considered, embedded permanent magnets (PMs) have been widely adopted in Syn-Rel rotors to further increase power density as well as power factor. In this paper, the authors have investigated the potential of PM-assisted Syn-Rel machine to be the next generation electrical propulsion motor topology for automotive application, with special attention put on a key geometric parameter, i.e., airgap length. In MTPA region, the influence of airgap length on different torque components has been analyzed in detail based on the frozen permeability method. In field weakening region, the variation trend of several key performance such as peak power, iron loss and torque ripple have been investigated along with airgap length. It is found that with specifically high level of electric and magnetic loading, there exists optimal value of airgap length to achieve high power density based on specific cooling and kVA limitation. Numerical FEA and experimental tests are associated to validate the conclusions.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"31 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":"121398272","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

Systematic Finite-Control-Set Model Predictive Control Design with Unified Model for Isomorphic and Dual Power Converters 同构双功率变流器系统有限控制集模型预测控制设计

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235729

Cheng Xue, Yuzhuo Li, Y. Li

{"title":"Systematic Finite-Control-Set Model Predictive Control Design with Unified Model for Isomorphic and Dual Power Converters","authors":"Cheng Xue, Yuzhuo Li, Y. Li","doi":"10.1109/ECCE44975.2020.9235729","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235729","url":null,"abstract":"Finite-control-set model predictive control (FCS-MPC) has been applied to various power converters successfully in the last decades. However, the FCS-MPC algorithm for a power converter is usually a case-by-case design process. In this article, instead of designing an FCS-MPC scheme for power converters individually, a systematic FCS-MPC design framework is proposed. Firstly, the power converters are classified into associate converter groups based on isomorphic and dual relationships. Secondly, all converters in the associate group are modeled through unified models. Then, the same FCS-MPC framework can be shared between the converters with special relationships, which shows a significant simplification compared to the conventional design process. Also, the system performance of power converters in the associate group can be analyzed systematically. Various converters (e.g., three-phase current-source/voltage-source converter, single-phase T-type voltage-source converter) are selected as case studies in this work to show the feasibility of this work. Therefore, the systematic FCS-MPC design represents a universal design for a set of power converters while not only a specific one.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"176 5 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":"114080074","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

Investigation of Low-Pressure Condition Impact on Partial Discharge in Micro-Voids using Finite-Element Analysis 低压条件对微孔洞局部放电影响的有限元分析

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235846

M. Borghei, M. Ghassemi

{"title":"Investigation of Low-Pressure Condition Impact on Partial Discharge in Micro-Voids using Finite-Element Analysis","authors":"M. Borghei, M. Ghassemi","doi":"10.1109/ECCE44975.2020.9235846","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235846","url":null,"abstract":"The aviation industry, as one of the major CO2 producers, anticipates a reduction in its carbon emission. While big manufacturers and governmental agencies are betting on the more- (and soon all-) electrified aircraft to reduce the dependency of this industry on fossil fuels, there are major milestones to be reached in the next three decades. Among those, enhancing the specific power of systems, that are expected to substitute the fuel-based engines, is one of the primary targets. An enabling technology to achieve this goal is the wide bandgap (WBG)-based power converting, a promising technology toward increasing the efficiency of electrical systems. However, not only the partial discharges (PDs) -induced by the high voltage, high-frequency, fast-rise square voltages generated by these systems- endanger the insulation system, but also the operation at higher altitudes can be another game-changing factor in the design of power converters. This study puts forth the investigation of the pressure impact in tandem with the impact of short rise-times on various PD characteristics including but not limited to PD true charge magnitude and duration. The results show how the incorporation of harsh environmental conditions and short rise times lead to more intense and prolonged discharges. Moreover, it shows that micro-voids that have negligible PD activities at sea level can turn into serious threats at higher altitudes. In this project, COMSOL Multiphysics interfaced with MATLAB is used to simulate the PD identification process based on the experimental data found in the literature.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"81 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":"114314985","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: 7

Dynamic Process Analysis of a High-Power Bidirectional DC/DC Converter for Electric Vehicles 大功率电动汽车双向DC/DC变换器动态过程分析

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235909

Liyan Zhu, Hua Bai, Alan Brown, Matt Mcammond

引用次数: 2

Design and Evaluation of a Power Hardware-in-the-Loop Machine Emulator 电力半实物仿真器的设计与评价

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235711

J. Noon, He Song, B. Wen, I. Cvetkovic, Srdjan Srdic, Gernot Pammer, R. Burgos

引用次数: 8

ECCE 2020 Committees

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ecce44975.2020.9236385

引用次数: 0

Body Diode Reverse Recovery Effects on SiC MOSFET Half-Bridge Converters SiC MOSFET半桥变换器的体二极管反向恢复效应

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9236330

M. Pulvirenti, A. Sciacca, L. Salvo, M. Nania, G. Scelba, G. Scarcella

引用次数: 4

Design and Analysis of a Vernier Motor Considering Series Compensation 考虑串联补偿的游标电机设计与分析

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235904

Abdur Rehman, Byungtaek Kim, Y. Joo

{"title":"Design and Analysis of a Vernier Motor Considering Series Compensation","authors":"Abdur Rehman, Byungtaek Kim, Y. Joo","doi":"10.1109/ECCE44975.2020.9235904","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235904","url":null,"abstract":"This paper demonstrates that the problem in design of vernier motors that their high torque capability needs to be compromised due to extremely low power factor is improved by using the series compensation method and torque performance in the field of weakened driving is also strengthen. In order to quantitatively analyze the advantages obtained from vernier motors by the series compensation, first the vernier motors with various gear ratios are designed under a constraint of the given air gap radius. From the comparison of the back electromotive force (EMF), reactance and speed versus torque characteristics for the designed models, it is shown that the model with the largest back EMF, on the contrary, has the worst torque characteristic at high speed. To improve the torque characteristics in the high-speed operation area, the winding of the vernier motor with the largest counter electromotive force is configured as the open ended, and the series compensation is performed by connecting the secondary inverter and the floating capacitance. The characteristics of the vernier motor with the series compensation are first analyzed using electrical circuit simulation and then the time step finite element (FE) method is also performed. Especially, in the FE simulations, the equivalent capacitances reflecting series compensation are used to reduce the enormous calculation time of the FE analysis considering the actual inverter operations. From the analysis results, the improvement of the torque and power factor characteristics of the motor is confirmed.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"24 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":"114879221","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

High Power Dc-Dc Converter Based on Parallel Hybrid Converter 基于并联混合变换器的大功率Dc-Dc变换器

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235732

M. S. Ansari, Ibhan Chand Rath, S. Patro, A. Shukla

引用次数: 3