2019 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献_第4页

Isolated DC-DC Converter utilizing GaN power device for Automotive Application 基于GaN电源器件的汽车隔离DC-DC变换器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722097

H. Matsumori, T. Kosaka, Kisho Sekido, Kitae Kim, T. Egawa, N. Matsui

{"title":"Isolated DC-DC Converter utilizing GaN power device for Automotive Application","authors":"H. Matsumori, T. Kosaka, Kisho Sekido, Kitae Kim, T. Egawa, N. Matsui","doi":"10.1109/APEC.2019.8722097","DOIUrl":"https://doi.org/10.1109/APEC.2019.8722097","url":null,"abstract":"This paper presents an isolated step-sown DC-DC converter using GaN power device for automotive applications. The works for a power supply from a high voltage main battery with 200V to low voltage auxiliary battery with 13.6V in hybrid electric vehicle. A LLC converter is known as isolated DC-DC converter with high-efficiency. However, when input and/or output voltage considerably fluctuates, efficiency of a LLC resonant converter becomes worse. In order to solve this problem, a DC-DC boost-up converter to mitigate efficiency deterioration for the input and/or output voltage fluctuation is added to a LLC resonant converter. Generally speaking, an additional circuit, the boost-up chopper in this case, also deteriorates the total system efficiency. To avoid the efficiency degradation, discontinuous current mode control and GaN power devices are applied to the boost-up chopper. The DC-DC boost-up converter experimentally achieves 99.03% of conversion efficiency at nominal output so that it has no effect on the total system efficiency. Even though adding a DC-DC boost-up chopper to the LLC resonant converter, a power density expected to 10 W/cc.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129084321","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: 16

Continuous Stability Monitoring of DC Microgrids Using Controlled Injection 可控注入直流微电网连续稳定监测

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722069

Rohail Hassan, Hongjie Wang, R. Zane

引用次数: 8

A Novel Noncomplementary Active Clamp Flyback Control Technique 一种新的非互补有源箝位反激控制技术

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721838

A. Bianco, C. Adragna, S. Saggini, Mario Ursino, Francesco Ciappa, G. Scappatura

引用次数: 4

A Wide Gain Range LLC Resonant Converter Based on Reconfigurable Bridge and Asymmetric Resonant Tanks 基于可重构桥和非对称谐振槽的宽增益范围LLC谐振变换器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722214

Cheng Li, Hao Wang

{"title":"A Wide Gain Range LLC Resonant Converter Based on Reconfigurable Bridge and Asymmetric Resonant Tanks","authors":"Cheng Li, Hao Wang","doi":"10.1109/APEC.2019.8722214","DOIUrl":"https://doi.org/10.1109/APEC.2019.8722214","url":null,"abstract":"In wide voltage gain range applications, it is demanding to optimize the design of the conventional frequency modulated LLC resonant converter. In this paper, a novel reconfigurable LLC resonant topology is customized to mitigate this design challenge. On the primary side, six MOSFETs are utilized to formulate a reconfigurable inverter bridge. This bridge exhibits six different operation modes. Those operation modes enable a wide voltage gain range with a narrow switching frequency span. Furthermore, two asymmetric LLC resonant tanks with different turns ratios are deployed to further squeeze the switching frequency range. Zero-voltage switching is realized on all MOSFETs during all six modes. The conduction loss is reduced due to the reduced circulating current in each resonant tank. High efficiency and narrow frequency range over a wide voltage gain range are well achieved. The operating principles, design considerations, voltage gain analysis, and key experimental results are presented. A 1 kW laboratory prototype is built to verify the effectiveness of the proposed concept. The prototype converts a 390V input to an 80-420V output. A 97.42% peak efficiency is reported.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129252547","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

Power Flow Control in Multi-Active-Bridge Converters: Theories and Applications 多有源桥式变换器的潮流控制:理论与应用

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722122

Yenan Chen, Ping-Jian Wang, Haoran Li, Minjie Chen

{"title":"Power Flow Control in Multi-Active-Bridge Converters: Theories and Applications","authors":"Yenan Chen, Ping-Jian Wang, Haoran Li, Minjie Chen","doi":"10.1109/APEC.2019.8722122","DOIUrl":"https://doi.org/10.1109/APEC.2019.8722122","url":null,"abstract":"This paper investigates the theories and applications of power flow control in multi-active-bridge (MAB) power converters. Many emerging applications including differential power processing, low voltage power delivery in smart homes, multi-cell battery balancers, and photovoltaic energy systems comprise sophisticated power flow across multiple dc voltage ports. Connecting many dc voltage ports together with a MAB converter reduces the power conversion stress, improves the efficiency and enhances the power density. Fundamentally, the advantages of a MAB design come from merging many standalone magnetic components with simple functions into one single magnetic component that performs sophisticated functions. Three control strategies for MAB converters, including phase-shift (PS) control, time-sharing (TS) control, and hybrid phase-shift and time-sharing (PSTS) control are developed to regulate the voltage and precisely control the power flow. A four-port MAB converter prototype designed for low voltage power delivery applications in future smart homes has been built and tested to compare the performance of the three control methods and verify the effectiveness of the proposed architecture.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121333662","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: 26

Analytical Analysis of Ac and Dc Side Harmonics of Three-level Active Neutral Point Clamped Inverter with Space Vector Modulation 空间矢量调制三电平有源中性点箝位逆变器交直流侧谐波分析

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721981

Ruirui Chen, Jiahao Niu, Handong Gui, Zheyu Zhang, Fred Wang, L. Tolbert, B. Blalock, D. Costinett, Benjamin B. Choi

{"title":"Analytical Analysis of Ac and Dc Side Harmonics of Three-level Active Neutral Point Clamped Inverter with Space Vector Modulation","authors":"Ruirui Chen, Jiahao Niu, Handong Gui, Zheyu Zhang, Fred Wang, L. Tolbert, B. Blalock, D. Costinett, Benjamin B. Choi","doi":"10.1109/APEC.2019.8721981","DOIUrl":"https://doi.org/10.1109/APEC.2019.8721981","url":null,"abstract":"This paper presents a comprehensive analytical analysis of the ac and dc side harmonics of the three-level active neutral point clamped (ANPC) inverter with space vector modulation (SVM) scheme. An analytical model to calculate the harmonics of a three-level converter with SVM is developed. The ac side output voltage harmonics and dc side current harmonics characteristics are calculated and analyzed. With the developed models, the impact of interleaving on both sides harmonics are studied which considers the modulation index, interleaving angle, and power factor. The analysis provides guideline for interleaving angle optimization to reduce the ac side power filter and dc side dc-link capacitor. The relationship between electromagnetic interference (EMI) filter corner frequency and switching frequency is also analytically derived which provides guideline for switching frequency and EMI filter design optimization. Two paralleled three-level ANPC inverters are constructed and experimental results are presented to verify the analytical analysis.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121347137","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: 12

Multiphase Control for Robust and Complete Soft-charging Operation of Dual Inductor Hybrid Converter 双电感混合变换器鲁棒完全软充电的多相控制

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721951

Tianshi Xie, R. Das, Gab-Su Seo, D. Maksimović, Hanh-Phuc Le

{"title":"Multiphase Control for Robust and Complete Soft-charging Operation of Dual Inductor Hybrid Converter","authors":"Tianshi Xie, R. Das, Gab-Su Seo, D. Maksimović, Hanh-Phuc Le","doi":"10.1109/APEC.2019.8721951","DOIUrl":"https://doi.org/10.1109/APEC.2019.8721951","url":null,"abstract":"This paper presents a new Multiphase Dual Inductor Hybrid (MP-DIH) Converter for application in data center and telecommunication systems. The converter is based on addition of two output filter inductors to a Dickson switched-capacitor converter. The inductors are operated in multiple phases that are non-overlapped and evenly distributed over one switching cycle, completely soft-charging all flying capacitors even in the presence of practical capacitor mismatches and voltage ripples. In this converter operation, each branch of the switched-capacitor network is activated individually in one charging phase, and two interleaved inductors are employed to softly charge and discharge the capacitors to achieve high efficiency without any complex capacitor sizing or split phase operation. To verify the topology and its soft-charging advantages, a 48V-to-1.8V 20W experimental converter prototype is constructed. The converter achieves 92.4% peak efficiency for 40V-to-1.8V conversion and 92.1% peak efficiency for 48V-to-1.8V conversion at 4A load, and with 20% capacitance variations.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131613460","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: 14

A Dickson Resonant Switched-capacitor Converter with "Indirect" Resonant Core and Continuous Conversion Ratio 具有“间接”谐振核和连续变换器的Dickson谐振开关电容器变换器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721994

Shouxian Li, Ningning Zhang, Shuhua Zheng, Wenhao Xie, K. Smedley

引用次数: 8

Quasi-Online Low-Frequency Impedance Monitoring Scheme for Submodule Capacitors in Modular Multilevel Converters 模块化多电平变换器中子模块电容的准在线低频阻抗监测方案

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722277

D. Ronanki, S. Williamson

{"title":"Quasi-Online Low-Frequency Impedance Monitoring Scheme for Submodule Capacitors in Modular Multilevel Converters","authors":"D. Ronanki, S. Williamson","doi":"10.1109/APEC.2019.8722277","DOIUrl":"https://doi.org/10.1109/APEC.2019.8722277","url":null,"abstract":"Despite being the most fragile component, aluminum electrolytic capacitors (AECs) are preferred in modular multilevel converters (MMC) due to their high volumetric efficiency and low price. Due to the ageing of AECs, its capacitance decreases and equivalent series resistance (ESR) increases. This can result in an increased voltage ripple, power loss, and could damage the operation of the MMC. Therefore, condition monitoring of submodule (SM) capacitors in an MMC is indispensable to enhance system reliability. This paper presents a new condition monitoring technique for SM capacitors based on the measurement of its low-frequency impedance. The low-frequency impedance is evaluated based on the information of the second harmonic component in the SM capacitor voltage and current. In this scheme, a low-frequency voltage signal is injected in the control loop of the MMC with available hardware and controller for converter control. The proposed scheme has been validated through PLECS simulations on a three-phase half-bridge submodule (HB-SM) based MMC. This technique is also verified experimentally on a single-phase MMC with a four HB-SMs per arm.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115491744","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: 8

Accelerated Low Gate Count Parameter Identification for Integrated Switched-Mode Power Supplies with Digital Control 数字控制集成开关电源低门数参数的加速识别

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722002

Samuel Quenzer-Hohmuth, J. Messner, Steffen Ritzmann, Thoralf Rosahl, B. Wicht

{"title":"Accelerated Low Gate Count Parameter Identification for Integrated Switched-Mode Power Supplies with Digital Control","authors":"Samuel Quenzer-Hohmuth, J. Messner, Steffen Ritzmann, Thoralf Rosahl, B. Wicht","doi":"10.1109/APEC.2019.8722002","DOIUrl":"https://doi.org/10.1109/APEC.2019.8722002","url":null,"abstract":"Parameter identification in digital switched-mode power supplies (SMPS) enables new features in terms of design, diagnostics, and autotuning. It is beneficial for plug and play solutions, which allow to choose practically any inductor or capacitor for the SMPS meeting the application, cost and quality requirements. Parameter identification enables indication of component failure cases and adaption to unwanted parameter variations due to production tolerances, aging, and temperature changes. This paper proposes an identification concept for inductance and capacitance, the most influential parameters in SMPS. It allows for autotuning during startup and operation. The SMPS parameters are identified with very short identification time (85 µs during startup / 2 µs during operation), low gate count (8778 gates), small output voltage perturbations (0.4 % of the nominal output voltage), and high identification accuracy (max. 5 % deviation for inductance / max. 13 % deviation for capacitance). Experimental results are shown for a variable input voltage (3-6 V), 6.3 V output voltage, 1 A digitally controlled boost converter with 500 kHz switching frequency.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123196502","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