2019 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献_第5页

75 MHz discrete GaN based multi-level buck converter for envelope tracking applications 用于包络跟踪应用的75 MHz离散GaN多级降压转换器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721823

A. Villarruel-Parra, A. Forsyth

引用次数: 6

DC-UPS Capability for the SCALDO-Assisted 48-V Google Rack Power Architecture scaldo辅助48v谷歌机架电源架构的DC-UPS能力

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722306

Thilanga Ariyarathna, N. Kularatna, D. Steyn-Ross

引用次数: 6

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

Modeling, Design, and Experimental Verification of a WPT Level-3 Wireless Charger with Compact Secondary Coupler 具有紧凑型二次耦合器的WPT 3级无线充电器的建模、设计和实验验证

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8722104

O. Onar, V. Galigekere, J. Pries, G. Su, Shenli Zou, Saeed Anwar, Jonathan Wilkins, R. Wiles, L. Seiber, C. White

引用次数: 4

Dual-Band Multi-Receiver Wireless Power Transfer: Architecture, Topology, and Control 双频多接收机无线电力传输:架构、拓扑和控制

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721837

Ming Liu, Minjie Chen

{"title":"Dual-Band Multi-Receiver Wireless Power Transfer: Architecture, Topology, and Control","authors":"Ming Liu, Minjie Chen","doi":"10.1109/APEC.2019.8721837","DOIUrl":"https://doi.org/10.1109/APEC.2019.8721837","url":null,"abstract":"Wireless power transfer (WPT) via near-field magnetic coupling is an enabling technology for many applications including consumer electronics and electric vehicles. A few WPT standards have been established with frequencies ranging from kHz to MHz. MHz operation offers smaller size and higher tolerance to coil misalignment, and kHz operation offers higher efficiency and higher power rating. This paper presents a WPT architecture with new transmitter and receiver topologies that are reconfigurable for dual-band operation. On the transmitter side, we developed a novel architecture based on the reactance steering network (RSN) which can seamlessly compensate an arbitrary load impedance for radio-frequency (RF) power amplifiers. It can transmit power at two frequencies (kHz and MHz range) with decoupled power modulation. On the receiver side, we developed a reconfigurable dual-band rectifier that can achieve a power density of 300 W/inch3 at both 100 kHz and 13.56 MHz with very low component count. A dual-band reconfigurable WPT system comprising a dual-band transmitter and multiple dualband receivers has been built and tested. The RSN-based dualband transmitter can efficiently and simultaneously deliver 15 W of power to multiple receivers at both 100 kHz and 13.56 MHz.","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":"129771573","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

Fixed-Frequency Modulator for PFC with Power Semiconductor Filter to Mitigate Oscillation in the Input Current 带功率半导体滤波器的PFC定频调制器以减轻输入电流的振荡

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721780

Kun Zhang, Akhil Relekar, John Wing-to Fan, Jeff Po-Wa CHOW, Wan-Tim Cha, C. Tung, Ray Ho, H. Chung

引用次数: 2

A New 5–Level Voltage Source Inverter 一种新型5级电压源逆变器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721809

A. Dekka, A. Ramezani, S. Ounie, M. Narimani

引用次数: 8

An 80-W 94.6%-Efficient Multi-Phase Multi-Inductor Hybrid Converter 一种80瓦94.6%效率的多相多电感混合变换器

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI: 10.1109/APEC.2019.8721952

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

引用次数: 22