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2021 IEEE Energy Conversion Congress and Exposition (ECCE)最新文献

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Dynamic Performance Limitation and Enhancement of Grid-Forming Converters 网格成形变流器的动态性能限制与改进
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595056
Han Deng, Jingyang Fang, Y. Qi, V. Debusschere, Yi Tang
{"title":"Dynamic Performance Limitation and Enhancement of Grid-Forming Converters","authors":"Han Deng, Jingyang Fang, Y. Qi, V. Debusschere, Yi Tang","doi":"10.1109/ECCE47101.2021.9595056","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595056","url":null,"abstract":"Grid-forming converters (GFMCs) are emerging as promising candidates in more-electronics power systems for their capabilities of forming voltage and frequency. Regarding the control of GFMCs, lots of research have been done on the active and reactive power control loop and the voltage control loop of standalone voltage source converters. However, little literature elaborates the design of the voltage and current controllers when GFMCs are connected to the grid. This paper analyzes the stability of standard dual-inner-loop GFMCs. The requirements for the stability are analyzed and the facts that limiting the control bandwidth are identified. Specifically, it is revealed that in the synchronous dq frame, the coupling terms introduced by the grid impedance have a non-negligible impact on system dynamics. More importantly, the conventional dual-loop control scheme inherently limits the control bandwidth of GFMCs to be less than 50 Hz. To improve the speed of tracking the reference, a novel control scheme with a band-pass filter and a band-stop filter is proposed. With the proposed control scheme, the bandwidth of the GFMC is increased without causing instability.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132110960","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 Comparison of Cryogenic-Cooled and Superconducting Electrical Machines 低温冷却和超导电机的比较
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595182
M. Biasion, F. P. João Fernandes, P. Branco, S. Vaschetto, A. Cavagnino, A. Tenconi
{"title":"A Comparison of Cryogenic-Cooled and Superconducting Electrical Machines","authors":"M. Biasion, F. P. João Fernandes, P. Branco, S. Vaschetto, A. Cavagnino, A. Tenconi","doi":"10.1109/ECCE47101.2021.9595182","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595182","url":null,"abstract":"This paper compares the steady-state operation of air-cooled, cryogenic-cooled and superconducting induction machines. The aim is to investigate the impact of a very low temperature and the influence of a superconducting rotor cage on the performances of standard designed, air-cooled machines. The research work includes a review of the state of the art of cryogenic-cooled and superconducting induction machines for various applications. The performances of the machines are assessed analytically by solving the single-phase equivalent circuit and considering the influence of the temperature, the skin-effect and the nonlinear behavior of superconductors. The analytical results are validated by experiments on a fractional kilowatt induction motor. The experimental activities include the characterization of the core losses at cryogenic temperature.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132357949","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
Operational Flexibility of the Modular Multilevel Converter under Unbalanced Grid Conditions 不平衡电网条件下模块化多电平变换器的工作灵活性
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595263
Yu-Chen Su, Hsuan-ming Li, Po-lin Chen, Po-tai Cheng
{"title":"Operational Flexibility of the Modular Multilevel Converter under Unbalanced Grid Conditions","authors":"Yu-Chen Su, Hsuan-ming Li, Po-lin Chen, Po-tai Cheng","doi":"10.1109/ECCE47101.2021.9595263","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595263","url":null,"abstract":"This paper has developed a static synchronous compensator (STATCOM) based on the open-DC modular multilevel converter (MMC) which has one more degree of freedom than the cascaded H-bridge converter to deal with the unbalanced grid conditions. In addition to the negative sequence current and the zero sequence voltage, the DC circulating current is also available in the open-DC MMC so that there are three control freedoms for addressing the unbalanced grid conditions. The corresponding control scheme is thus designed, and the laboratory test results are provided as well to validate the proposed control scheme.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129974115","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
An Active Gate Driver for Dynamic Current Sharing of Paralleled SiC MOSFETs 一种用于并联SiC mosfet动态共流的有源栅极驱动器
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9596040
Xun Wang, Yang He, Junming Zhang, Shuai Shao, Han Li, Cheng Luo
{"title":"An Active Gate Driver for Dynamic Current Sharing of Paralleled SiC MOSFETs","authors":"Xun Wang, Yang He, Junming Zhang, Shuai Shao, Han Li, Cheng Luo","doi":"10.1109/ECCE47101.2021.9596040","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9596040","url":null,"abstract":"Due to the power limitation of single chip SiC MOSFET, the parallel operation of silicon carbide (SiC) MOSFETs is necessary for high power applications. However, the unbalanced current will cause potential safety and reliability risk. This paper proposes a new active gate drive (AGD) circuit to solve the dynamic unbalanced current problem. Compared with the existing current sharing scheme, this method can adjust the dynamic current distribution in real time and improve the dynamic current sharing among the devices. The experimental results verify the effectiveness of the proposed AGD.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134010187","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: 6
Comparative Investigation of System-Level Optimized Power Conversion System Architectures to Reduce LCOE for Large-Scale PV-Plus-Storage Farms 降低大型光伏+储能电站LCOE的系统级优化功率转换系统架构的比较研究
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595154
Z. An, R. Kandula, D. Divan
{"title":"Comparative Investigation of System-Level Optimized Power Conversion System Architectures to Reduce LCOE for Large-Scale PV-Plus-Storage Farms","authors":"Z. An, R. Kandula, D. Divan","doi":"10.1109/ECCE47101.2021.9595154","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595154","url":null,"abstract":"PV-plus-storage (PVS) has become a prevalent configuration for newly commissioned large-scale solar projects. However, the optimal power conversion system (PCS) architecture has not been investigated yet. This paper first validates the limited impact of inverter cost on LCOE and then explores a system-level optimized PCS architecture with extended LCOE reduction to proliferate large-scale dispatchable solar energy. Two state-of-the-art architectures including central inverters (CI), traditional 480/600 V string inverters (SI) are compared with newly proposed medium voltage string inverters (MVSI) and multiport DC transformer (MDCT). With verified layouts and single line diagrams (SLDs) of 20 MW PVS plants, the losses and costs breakdown of different architectures are extracted and the PCS related LCOEs are derived. In this analysis, all electrical bill of materials (EBOS) elements, inverters, battery storage and its associated components, are included, whose losses and costs are obtained from markets, manufacturers, and literature. Besides, the sensitivities of PCS-related LCOEs to Inverter-Loading-Ratio (ILR) are also investigated. The results show that compared with CI and SI with 1.5 kV PV, 4 kV MVSI and 34 kV MDCT present an extended LCOE reduction across all ILR from 1.0 to 3.0, making them economically favorable candidates for PVS farms.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134316601","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
Performance and Cost Comparison of Conventionaland Vernier PM Wind Generators for Small-scale Uncontrolled Passive Wind Energy Systems 小型无控被动风能系统中常规和游标永磁风力发电机的性能和成本比较
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595478
C. Labuschagne, M. Kamper
{"title":"Performance and Cost Comparison of Conventionaland Vernier PM Wind Generators for Small-scale Uncontrolled Passive Wind Energy Systems","authors":"C. Labuschagne, M. Kamper","doi":"10.1109/ECCE47101.2021.9595478","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595478","url":null,"abstract":"This paper forms part of a broader study that focusses on the use of permanent magnet wind generators in small-scale uncontrolled passive wind energy systems. Separate studies have previously been done on the design of permanent magnet synchronous generators and permanent magnet Vernier generators for these passive wind energy systems. In this paper, the two respective generator technologies are directly compared. Power matching capability, torque quality and the system cost are the main criteria for comparison. The significant result is that the permanent magnet Vernier generator is found to be the best generator choice for this application in terms of performance. However, the permanent magnet Vernier generator is extremely expensive in terms of permanent magnet material.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134356654","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
Comparison of Fault-Tolerant Control Methods Reducing Torque Ripple of Multi-phase BLDC Motor Drive System under Open-phase Fault 开相故障下多相无刷直流电机驱动系统减小转矩脉动容错控制方法的比较
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595506
Hyeoncheol Park, Taeyun Kim, Y. Suh
{"title":"Comparison of Fault-Tolerant Control Methods Reducing Torque Ripple of Multi-phase BLDC Motor Drive System under Open-phase Fault","authors":"Hyeoncheol Park, Taeyun Kim, Y. Suh","doi":"10.1109/ECCE47101.2021.9595506","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595506","url":null,"abstract":"Multi-phase BLDC (Brushless DC) motors with high efficiency and power density are widely used in electric propulsion systems such as electric vehicles, submarines, and electric ships. It is important that the multi-phase motors used in these applications operate stably without generating large torque ripple in various fault scenarios. In this paper, three fault-tolerant control methods are compared to reduce torque ripple by controlling the magnitude and phase angle of healthy phase currents under open circuit failure applied to remove the second harmonic component of torque, which has a large influence on torque ripple, is compared. The proposed fault-tolerant control methods were validated through HIL simulation of a 12-phase BLDC motor.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131544047","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
Loss Mitigation Techniques for a Novel Toroidal Permanent Magnet Motor 一种新型环形永磁电机的损耗抑制技术
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595226
M. Ibrahim, F. Bernier, J. Lamarre
{"title":"Loss Mitigation Techniques for a Novel Toroidal Permanent Magnet Motor","authors":"M. Ibrahim, F. Bernier, J. Lamarre","doi":"10.1109/ECCE47101.2021.9595226","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595226","url":null,"abstract":"This paper analyzes the losses of a high torque density toroidal permanent magnet motor has. The motor has a rotor wrapping around the stator in a circular shape in order to maximize the electromagnetic interaction with in the motor volume. The toroidal motor is simulated using 3D finite element analysis and the results show that the proposed configuration can achieve torque densities higher than radial and axial flux permanent magnet machines. However, it also has high magnet eddy current losses that could potentially limit the machine efficiency and reliability. Several techniques for magnet loss reduction are proposed including magnet orientation, material composition, position, and segmentation as well as winding configuration. These modifications led to a high efficiency - high torque density toroidal motor with only 1.3% of the magnet eddy current loss of the original design.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128940938","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
Cogging Torque Analysis in a Series Hybrid Variable Flux Machine Using Lumped Magnetic Circuits 集总磁路串联混合变磁通电机齿槽转矩分析
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595424
Dwaipayan Barman, P. Pillay
{"title":"Cogging Torque Analysis in a Series Hybrid Variable Flux Machine Using Lumped Magnetic Circuits","authors":"Dwaipayan Barman, P. Pillay","doi":"10.1109/ECCE47101.2021.9595424","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595424","url":null,"abstract":"This work tries to compute cogging torque in a 36-slot 6-pole SVFM where the higher coercive force N48SH magnet is in series with the lower coercive force AlNiCo9 magnet. A lumped parameter model of the SVFM is developed based on the magnetic flux lines in a slot-less machine obtained using the finite element analysis (FEA) method. The air gap flux density in the slot-less 6-pole SVFM is calculated using the developed lumped magnetic circuit model at different magnetization levels of the AlNiCo9 magnet. The error between the analytical and FEA results of air gap flux density is less than 4% at lower magnetization levels. By utilizing the air gap flux density in an equivalent slot-less machine and the relative air gap permeance function, the cogging torque of the 36-slot 6-pole SVFM is computed and compared to the analytical results at different magnetization levels of the AlNiCo9 magnet.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130819734","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
Electric Near Field Emission From a 1Mhz Power Converter For Electric Vehicles 电动汽车用1Mhz功率转换器的近场发射
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595815
Yanwen Lai, Juntao Yao, Shuo Wang, Zheng Luo, Yiming Li
{"title":"Electric Near Field Emission From a 1Mhz Power Converter For Electric Vehicles","authors":"Yanwen Lai, Juntao Yao, Shuo Wang, Zheng Luo, Yiming Li","doi":"10.1109/ECCE47101.2021.9595815","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595815","url":null,"abstract":"Recent years have witnessed evolutions of topologies and applications in electric vehicles. Many international standards such as CISPR 25 are designed to protect on-board devices from disturbances caused by radiated emissions arising in a vehicle. This paper investigates the radiated EMI (RE) caused by a buck-boost power converter in the 150kHz to 30MHz frequency range. Based on the developed emission noise model, the switching noise voltage is applied across the inductor, and it is identified as the main emission noise source. The lumped charge model is proposed to analyze the E field in the space due to a coil and the impact of dielectric medium is investigated using electrostatic theory. Experiments for near electric field emission measurement and RE measurement are conducted to identify the noise source and the analysis is verified in simulation.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130864624","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: 6
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