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

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Transient Angle Stability Prediction of Virtual Synchronous Generator Using LSTM Neural Network 基于LSTM神经网络的虚拟同步发电机暂态角稳定性预测
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595637
Yang Shen, Zhikang Shuai, Chao Shen, Xia Shen, Jun Ge
{"title":"Transient Angle Stability Prediction of Virtual Synchronous Generator Using LSTM Neural Network","authors":"Yang Shen, Zhikang Shuai, Chao Shen, Xia Shen, Jun Ge","doi":"10.1109/ECCE47101.2021.9595637","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595637","url":null,"abstract":"Virtual synchronous generator (VSG) attracts great attention for mimicking synchronous generators but suffers from transient instability. Predicting the stability is important for protecting the VSG. Unlike synchronous generators, quick and precise prediction is needed for VSG due to the lack of physical inertia. In this paper, a long-short term memory (LSTM) neural network is proposed to predict hundreds of milliseconds in the future of VSG’s synchronousness and stability margin, but only takes dozens of milliseconds. Furthermore, the input and output data of the proposed LSTM is designed based on singular perturbation theory so that quick and accurate prediction is guaranteed. Simulation result shows that proposed LSTM possesses a great potential in online prediction.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"41 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":"128323673","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
Circuit-semiconductor Dynamic Coupling Analysis for PiN Diode Reverse Recovery PiN二极管反向恢复电路-半导体动态耦合分析
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595195
Ruiwen Chen, Zhi Yang, Xiaoli Tian, Mingyan Wang, Yupeng Pan, Sideng Hu
{"title":"Circuit-semiconductor Dynamic Coupling Analysis for PiN Diode Reverse Recovery","authors":"Ruiwen Chen, Zhi Yang, Xiaoli Tian, Mingyan Wang, Yupeng Pan, Sideng Hu","doi":"10.1109/ECCE47101.2021.9595195","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595195","url":null,"abstract":"To analyze the complex nonlinear phenomenon of PiN diode under short-pulse and short-time dynamic process, this paper proposes a circuit-semiconductor dynamic coupling analysis for PiN diode reverse recovery process. The key parameters in each stage of reverse recovery process are theoretically explained, including duration, turn-off loss, and voltage overshoot. Firstly, the dynamic coupling principle between semiconductor chip and commutation loop is clarified via reverse bias voltage and forward current. Key parameters in reverse recovery process are quantitatively calculated as well. Secondly, an interaction simulation coupled with circuit and semiconductor was established. Finally, the dynamic coupling analysis and key parameter calculation are verified through simulation and experimental results of Infineon 1200V/40A anti-parallel diode of IGBT. This study can be used as an effective technical means to guide the selection of PiN diode type and the optimization of commutation circuit design.","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":"128537007","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
A 700kHz 800V/14V GaN-based DC-DC Converter with optimized Integrated Transformer for Electrical Vehicles 一种700kHz、800V/14V、优化集成变压器的基于gan的电动汽车DC-DC变换器
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595023
H. Kieu, Donghan Lee, Sewan Choi, Sangiin Kim
{"title":"A 700kHz 800V/14V GaN-based DC-DC Converter with optimized Integrated Transformer for Electrical Vehicles","authors":"H. Kieu, Donghan Lee, Sewan Choi, Sangiin Kim","doi":"10.1109/ECCE47101.2021.9595023","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595023","url":null,"abstract":"This paper proposes a high-step-down DC-DC converter for electric vehicles (EVs) with 800V battery system. The output of the input series half bridge (ISHB) converter is reconstructed to reduce the DC blocking capacitor in secondary. The maximum duty cycle of the proposed converter can be larger than 0.5, which allows the use of larger leakage inductance. This turns out to be a crucial advantage to achieve fully range ZVS in high switching frequency over 500kHz. The two transformers are integrated with partial cancellation, resulting in 20% of power loss and 32% of footprint reduction. A prototype of 1.2kW base on GaN devices achieves a power density of 10.2kW/1. Obtained maximum efficiency was up to 93%. Experiment results are provided to verify the proposed concepts.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"28 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":"128719228","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
Sliding Mode Control Based Energy Harvesting System For Low Power Applications 基于滑模控制的低功耗能量收集系统
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595302
Honorio Martinez Sarmiento, Maen Marji, Cheaheng Lim, Jonghoon Kim, Nan Wang, W. Na
{"title":"Sliding Mode Control Based Energy Harvesting System For Low Power Applications","authors":"Honorio Martinez Sarmiento, Maen Marji, Cheaheng Lim, Jonghoon Kim, Nan Wang, W. Na","doi":"10.1109/ECCE47101.2021.9595302","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595302","url":null,"abstract":"As technology advances and cities become more innovative, the need to harvest energy to power intelligent devices at remote locations, such as wireless sensors, is increasing. This paper focuses on studying and simulating an energy management system (EMS) for energy harvesting with a battery and a supercapacitor for low power applications. Lithium-ion batteries are the primary energy storage source for low power applications due to their high energy density and efficiency. On the other hand, the supercapacitors excel in fast charge and discharge. Furthermore, supercapacitors tolerate high currents due to their low equivalent series resistance (ESR). The supercapacitor in the system increases the time response of the power delivery to the load, and it also absorbs the high currents in the system. Moreover, the supercapacitor covers short-time load demand due to the fluctuation of the renewable source. The EMS monitors the proposed system to maintain power to the load either from the renewable source or the energy storage. The power flow of the energy storage is controlled via DC-DC bidirectional converters. The lithium-ion battery is charged via a constant current (CC) using a sliding mode controller (SMC) and a constant voltage (CV) via a typical PI controller. The response of the SMC current controller is compared with PI and Fuzzy current controller. Furthermore, the performance of a system having and not having a supercapacitor is compared. Finally, MATLAB modeling system simulation and experimental implementation results are analyzed and presented.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"20 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":"124582635","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
A Three-Phase Voltage Doubler Topology Consisted of Small Number of Switching Devices with Low Switching Frequency 一种由少量开关器件组成的低开关频率三相倍压器拓扑结构
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9594991
M. Nakahara, Hirooki Tokoi, Hideto Takada, H. Oohashi
{"title":"A Three-Phase Voltage Doubler Topology Consisted of Small Number of Switching Devices with Low Switching Frequency","authors":"M. Nakahara, Hirooki Tokoi, Hideto Takada, H. Oohashi","doi":"10.1109/ECCE47101.2021.9594991","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9594991","url":null,"abstract":"Three-phase voltage doublers are used to boost DC link voltages for many applications, such as motor drives and uninterruptible power supplies. However, conventional topologies are complex and need many switching devices, which increases their cost. The conventional topologies have a power factor correction (PFC) function as well as a boosting function. A low-cost configuration is required for industry, and applications which do not need PFC exist. Consequently, it has been difficult to implement them for industrial use. This paper proposes a simple circuit topology of a three-phase voltage doubler. The proposed topology focuses on only boosting the voltage and it reduces the number of switching devices to less than half that of other topologies by sharing a bi-directional switch with three phases. It was evaluated in experiments with a 4-kW prototype. The results show that the proposed topology can boost the DC link voltage to twice that of a normal diode bridge rectifier over the whole load range.","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":"130367848","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
Mechanical Performance of Transverse Flux Machines at High Speeds of Operation 高速运转时横向磁通机的机械性能
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595849
Shuvajit Das, Anik Chowdhury, T. Tsuda, Naoto Saito, Subrata Saha, Y. Sozer
{"title":"Mechanical Performance of Transverse Flux Machines at High Speeds of Operation","authors":"Shuvajit Das, Anik Chowdhury, T. Tsuda, Naoto Saito, Subrata Saha, Y. Sozer","doi":"10.1109/ECCE47101.2021.9595849","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595849","url":null,"abstract":"Static structural design challenges of a multi-segment Transverse flux machine (TFM) rotor with orthogonally directed magnets is studied in this work through von-mises stress and safety factor analysis. Impact of rotor sleeve thickness and material selection is considered during the design phase. The material selection for sleeve design is approached from both electromagnetic and structural design points of view. Moreover, TFM rotor and shaft vibration over the entire speed range of interest is studied using structural unit response analysis method in this work. Utilization of structural unit responses for fast vibration prediction of TFM rotors is a prime contribution of this work. The analysis shows a strong presence of spatial order 10 in rotor vibration and first bending mode resonance in shaft vibration spectrum. Based on the outcome of static structural stress analysis and vibration performance evaluation over the entire speed range of interest a maximum speed constraint is determined for the TFM rotor under study.","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":"130389354","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
Transformer-less Alternative Topologies of a Unified Power Quality Conditioner with Embedded Hybrid Energy Storage 嵌入式混合储能统一电能质量调节器的无变压器替代拓扑
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595585
Jose M. Piedra, P. García, Ramy Georgious, G. Villa, Mhret Berhe Gebremariam
{"title":"Transformer-less Alternative Topologies of a Unified Power Quality Conditioner with Embedded Hybrid Energy Storage","authors":"Jose M. Piedra, P. García, Ramy Georgious, G. Villa, Mhret Berhe Gebremariam","doi":"10.1109/ECCE47101.2021.9595585","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595585","url":null,"abstract":"This paper proposes alternative transformer-less topologies of a Unified Power Quality Conditioner with embedded hybrid energy storage, based on supercapacitors and Li-ion batteries for power condition in distribution grids. Existing transformer-based alternatives, analyzed in a previous contribution from the same authors, are able to compensate voltage sags and swells, current unbalances as well as operation in grid-forming mode when required. Nevertheless, due to the usage of shunt and series single-phase iron core transformers, the design is bulky, heavy and expensive. The main contribution of this paper is the study of alternative transformer-less topologies, which could be more efficient (less conduction losses), compact and cost convenient. The research included in here considers both half-bridge and full-bridge configurations, either with shared and independent dc-links. Control system design is analyzed and simulation results are used for the validation of the topology.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"14 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":"126695270","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
Hybrid Flying Capacitor Inverter Based on Array Bootstrap Driver for High Power Density Application 基于阵列引导驱动的高功率密度混合飞电容逆变器
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595718
Jingxiang Shi, S. Pan, Jinwu Gong, Zhipeng Yin, X. Dang, Minglong Wang
{"title":"Hybrid Flying Capacitor Inverter Based on Array Bootstrap Driver for High Power Density Application","authors":"Jingxiang Shi, S. Pan, Jinwu Gong, Zhipeng Yin, X. Dang, Minglong Wang","doi":"10.1109/ECCE47101.2021.9595718","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595718","url":null,"abstract":"High efficiency and compact converters are in demand in many applications. The multilevel converter is a promising choice for high-efficiency and high-power-density design. So, in this paper, the hybrid flying capacitor converter based on all Si power devices is adopted to complete the challenge. Apart from reducing the volume of filter inductor, the optimization of conduction loss and special design considerations of power stage are introduced in detail. Further, an array bootstrap driving circuit is proposed to relieve the voltage dip caused by multistage cascade bootstrap diode. The simulation and experimental prototype are built to verify the effectiveness of this high-power-density inverter design.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"723 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":"126934955","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-Phase Cascaded Series-Parallel (CaSP) Hybrid Converter for Direct 48 V to Point-of-Load Applications 多相级联串并联(CaSP)混合转换器直接48v到负载点应用
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9596032
Yicheng Zhu, Zichao Ye, T. Ge, Rose A. Abramson, R. Pilawa-Podgurski
{"title":"A Multi-Phase Cascaded Series-Parallel (CaSP) Hybrid Converter for Direct 48 V to Point-of-Load Applications","authors":"Yicheng Zhu, Zichao Ye, T. Ge, Rose A. Abramson, R. Pilawa-Podgurski","doi":"10.1109/ECCE47101.2021.9596032","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9596032","url":null,"abstract":"The rapid growth in data-center electricity consumption has created an imperative need for more energy-efficient solutions to data center power delivery. This work proposes a multi-phase hybrid switched-capacitor (SC) converter for direct 48 V to point-of-load (PoL) conversion with high performance. The proposed topology can be viewed as a 6to-1 cascaded series-parallel (CaSP) converter merged with a three-phase interleaved buck converter with automatic current balancing. Due to multi-phase operation, the CaSP stage is able to achieve a higher conversion ratio compared to twophase SC converters with the same number of components as well as lower turn-on voltage for switching devices. Moreover, the proposed CaSP-PoL topology benefits from the frequency multiplication effect similar to that in flying capacitor multilevel converters, which allows for lower frequency operation of higher voltage rated switches and doubled frequency operation of buck inductors, contributing to a further reduction in switching loss and inductor size. A 48 V-to-PoL hardware prototype was built in vertical assembly structure for compact packaging and tested up to 90 A output current, achieving 94.1% peak efficiency (93.2% including gate drive loss) and 702 W/in 3 power density (by box volume) at 2.0 V output voltage.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"6 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":"129120174","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
A High-Efficiency Charge-Pump Gate Drive Power Delivery Technique for Flying Capacitor Multi-Level Converters with Wide Operating Range 宽工作范围飞电容多电平变换器的高效率电荷泵门驱动供电技术
2021 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2021-10-10 DOI: 10.1109/ECCE47101.2021.9595216
Rahul K. Iyer, N. Ellis, Zichao Ye, R. Pilawa-Podgurski
{"title":"A High-Efficiency Charge-Pump Gate Drive Power Delivery Technique for Flying Capacitor Multi-Level Converters with Wide Operating Range","authors":"Rahul K. Iyer, N. Ellis, Zichao Ye, R. Pilawa-Podgurski","doi":"10.1109/ECCE47101.2021.9595216","DOIUrl":"https://doi.org/10.1109/ECCE47101.2021.9595216","url":null,"abstract":"In this work, we present a robust gate drive power delivery approach well-suited for converter topologies, such as the flying-capacitor multi-level (FCML) converter, that contain several series-connected switching elements. The proposed power delivery network leverages internal voltages inherent to the FCML topology in combination with a charge-pump mechanism to provide gate drive power with high efficiency. The charge-pump design operates independently of the primary switching devices, allowing the converter to operate at very low duty ratios without suffering from significant degradation of the floating supplies. The concept is validated in a hardware prototype, demonstrating an estimated 38% reduction in gate drive power delivery losses compared to competing techniques. Moreover, the robustness of the technique is validated through incorporation into a 400V, 2kW 6-level FCML DC-DC converter, achieving a 99.07% peak conversion efficiency and 2.05kW/in3 power density.","PeriodicalId":349891,"journal":{"name":"2021 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"103 3 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":"123388249","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
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