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Hybrid-SoRo: Hybrid Switched Capacitor Power Management Architecture for Multi-Channel Piezoelectric Soft Robot Hybrid- soro:多通道压电软机器人的混合开关电容电源管理架构
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773687
Hsin Cheng, Zhiwu Zheng, Prakhar Kumar, Yenan Chen, Minjie Chen
{"title":"Hybrid-SoRo: Hybrid Switched Capacitor Power Management Architecture for Multi-Channel Piezoelectric Soft Robot","authors":"Hsin Cheng, Zhiwu Zheng, Prakhar Kumar, Yenan Chen, Minjie Chen","doi":"10.1109/APEC43599.2022.9773687","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773687","url":null,"abstract":"Soft robots are enabling technologies for many emerging and important applications. The operation voltages of many soft actuators, i.e., Macro Fiber Composites (MFCs) and Dielectric Elastomers (DEs), are usually above 1000 V. Many of these actuators need to work together to perform useful functions. This paper presents Hybrid-SoRo, a hybrid switched capacitor power management architecture for multi-channel piezoelectric soft robot. A 6 V-input dc-dc converter leverages the strengths of a transformer-based circuit in boosting the voltage and a switched capacitor multiplier in creating multiple voltage levels. A modular distribution unit controls the operation of each actuator. The 6 V-1500 V Hybrid-SoRo prototype achieves a power density of 1 W/g when driving a five-actuator inchworm soft robot. The peak efficiency of the 6 V-1500 V converter is 88.28%, and the full-load efficiency is 79.14%.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126361345","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
A 1MHz Oak Ridge AC / DC Converter for UAV Contactless Charger Implementation 用于无人机非接触式充电器的1MHz Oak Ridge AC / DC转换器实现
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773397
Erdem Asa, Lincoln Xue, Mostak Mohammad, V. Galigekere, O. Onar, B. Ozpineci
{"title":"A 1MHz Oak Ridge AC / DC Converter for UAV Contactless Charger Implementation","authors":"Erdem Asa, Lincoln Xue, Mostak Mohammad, V. Galigekere, O. Onar, B. Ozpineci","doi":"10.1109/APEC43599.2022.9773397","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773397","url":null,"abstract":"In this paper, a 1 MHz single-phase Oak Ridge Converter (ORC) AC/DC wireless power transfer (WPT) system is introduced for unmanned air vehicle (UAV) charging applications. The proposed advanced solution eliminates the design, weight, volume, and the cost of the power factor correcting (PFC) front-end rectifier compared to the conventional practices. Additionally, grid power quality requirements can be achieved with the presented innovative idea. With this method, single stage WPT primary side uses the hybrid grid frequency and high frequency (60 Hz and 1 MHZ) from ac source through the coupler coils and to UAV battery with GaN FETs. Experimental results of the single-phase system is presented to confirm the mathematical analyses with the source voltage of 110 VAC, RMS and output voltage of 40 VDC at 1 kW power with 6 inches air gap between couplers. The primary coupler consists of a ferrite-backed single-turn coil with a radius of 1.5 ft, and the secondary coupler is made with an air-core single-turn coil with radius of 1.2 ft. The system overall ac to dc efficiency is measured 77 % acquiring 0.99 power factor (PF) and 3.3 % current total harmonic distortion (THD) at 1 kW power.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188455","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
Characterization of GaN HEMT under short-circuit events 短路事件下GaN HEMT的表征
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773602
Javier Galindos Vicente, D. Serrano, M. Vasić
{"title":"Characterization of GaN HEMT under short-circuit events","authors":"Javier Galindos Vicente, D. Serrano, M. Vasić","doi":"10.1109/APEC43599.2022.9773602","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773602","url":null,"abstract":"In this paper, an analysis of the failure mecha-nisms and degradation indicators of GaN HEMTs is presented. Understanding how this technology fails is critical, especially for space applications. Due to radiation, a common failure mechanism in space applications for GaN devices is the short-circuit event. A systematic method is proposed to perform “on-board” measurement of the critical electrical parameters and analyze the behavior of DUTs under short-circuit failures to build a reliability model. A setup to characterize GaN HEMTs devices is developed, and multiple tests at different conditions have been performed. The reliability challenge of GaN devices could be addressed by having on-board, in-system prognostics and device health monitoring techniques to predict device failures well ahead of time.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121093291","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
Core Size Scaling Law of Two-Phase Coupled Inductors – Demonstration in a 48-to-1.8 V Hybrid Switched-Capacitor MLB-PoL Converter 两相耦合电感的磁芯尺寸缩放规律——在48- 1.8 V混合开关电容MLB-PoL变换器中的演示
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773645
T. Ge, Rose A. Abramson, Zichao Ye, R. Pilawa-Podgurski
{"title":"Core Size Scaling Law of Two-Phase Coupled Inductors – Demonstration in a 48-to-1.8 V Hybrid Switched-Capacitor MLB-PoL Converter","authors":"T. Ge, Rose A. Abramson, Zichao Ye, R. Pilawa-Podgurski","doi":"10.1109/APEC43599.2022.9773645","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773645","url":null,"abstract":"Conventional design of coupled inductors is focused on a specific converter topology, and the size advantage of coupled inductors over uncoupled inductors is rarely analyzed systematically. This work models the core size for generalized two-phase gapped coupled inductors and provides an effective way to compare the core size for different duty ratios (corresponding to different topologies) and different coupling coefficients. Both the analytical model and hardware prototypes are provided to demonstrate a significant size reduction by using tightly-coupled inductors in hybrid switched-capacitor converters with a large duty ratio. The proposed coupled inductors are applied in a Multi-Level Binary (MLB) Point-of-Load (PoL) converter, achieving 94.4% peak system efficiency and 474 W/in3 power density with 48-to-1.8 V conversion and 60 A output. Both the efficiency and power density are higher than the conventional MLB-PoL converter using discrete inductors.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"681 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116108537","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
Equivalent Circuit Modeling Method for Real-Time Simulation of Multi-Active Bridge based Solid-State Transformer 多有源桥式固态变压器实时仿真的等效电路建模方法
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773662
Xuekun Meng, Wei Li
{"title":"Equivalent Circuit Modeling Method for Real-Time Simulation of Multi-Active Bridge based Solid-State Transformer","authors":"Xuekun Meng, Wei Li","doi":"10.1109/APEC43599.2022.9773662","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773662","url":null,"abstract":"The Solid-State Transformer (SST) technologies present a favorable opportunity in various domains within the distribution power system. By utilizing the high-frequency square wave voltage modulation, the SST can transfer high density power while reducing transformer size and weight. However, the high number of electronic switches and the high-frequency switching characteristic in SST introduce challenges to real-time simulation and hardware-in-the-loop (HIL) testing. This paper presents an equivalent model for real time simulation of Multi-Active Bridge (MAB) based SST systems. The proposed model is computationally efficient to improve simulation speed and maintains the model accuracy, which is demonstrated in case studies where the model is compared to a detailed reference model.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125007387","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
Modeling and Characterization of Natural-Convection Oil-Based Insulation for Medium Frequency Transformers 中频变压器自然对流油基绝缘的建模与表征
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773591
Nikolina Djekanovic, D. Dujić
{"title":"Modeling and Characterization of Natural-Convection Oil-Based Insulation for Medium Frequency Transformers","authors":"Nikolina Djekanovic, D. Dujić","doi":"10.1109/APEC43599.2022.9773591","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773591","url":null,"abstract":"Due to its high value of dielectric strength, oil is often used for transformer insulation, especially when processing high powers. Nevertheless, its presence needs to be considered when determining thermal coordination of a converter system, which also includes the challenging modeling of fluid dynamics. This paper presents an analytical model for calculation of charac-teristic oil temperatures for medium frequency transformers with oil-immersed windings. The characterization and verification of the developed analytical model is performed based on a small-scale experimental setup. The paper demonstrates that the analytical model reasonably agrees with the selected verification method, and can aid design optimization.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125229642","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
Optimization of Self-Adaptive INR-MPPT for R-Mode RED Stacks R-Mode红色堆叠自适应INR-MPPT优化
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773476
Zhihong Yan, Ying Huang, Li Wang, Siew-Chong Tan, Chuyang Tang, S. Hui
{"title":"Optimization of Self-Adaptive INR-MPPT for R-Mode RED Stacks","authors":"Zhihong Yan, Ying Huang, Li Wang, Siew-Chong Tan, Chuyang Tang, S. Hui","doi":"10.1109/APEC43599.2022.9773476","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773476","url":null,"abstract":"This paper presents a self-adaptive incremental-resistance maximum-power-point-tracking (INR-MPPT) method to achieve maximum power extraction from a recycle-mode (R-mode) operating reverse-electrodialysis (RED) stack. By considering the electrical characteristics of the R-mode RED stack, the design principle of the INR-MPPT method, which involves its scaling factor and sampling period, to ensure both fast response and system stability, is discussed. The validity of the proposed INR-MPPT method is verified by simulation and experiments.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122391770","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
Farm-level Interactions Study of a Novel Tri-port Soft-switching Medium-Voltage String Inverter (MVSI) based Large-scale PV-Plus-Storage Farms 基于新型三端口软开关中压串逆变器(MVSI)的大型光伏+储能电场电场级相互作用研究
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773544
Vikram Roy Chowdhury, Z. An, R. Kandula, D. Divan
{"title":"Farm-level Interactions Study of a Novel Tri-port Soft-switching Medium-Voltage String Inverter (MVSI) based Large-scale PV-Plus-Storage Farms","authors":"Vikram Roy Chowdhury, Z. An, R. Kandula, D. Divan","doi":"10.1109/APEC43599.2022.9773544","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773544","url":null,"abstract":"A medium-voltage photovoltaic power conversion unit supported by battery based on a novel topology of soft switching solid state transformer is presented in this paper. It can reduce the Levelized Cost of Energy (LCOE) of PVS farm in an extended degree. However, its capability to provide grid-support services, such as frequency response, reactive power support, etc, have not been demonstrated. A series/parallel combination of these modules form a large 20 MVA solar farm. To validate them with reduced computation burden, a small-signal model of MVSI is firstly derived and validated in this paper. The model has been validated to match the full-switch model in both steady-state and dynamic conditions. Next, a farm-level simulation based on the proved small-signal model was implemented to demonstrate grid-support services. Real irradiation date from NREL is used to show the operational capabilities of the system. The overall farm is simulated based on MATLAB/Simulink domain to check the performance for various cases namely: power transfer from dc-ac side, reactive power support during grid voltage sag and utilization of battery during grid voltage disturbance or partial shading over PV panels.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131166511","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
Hardware Design of a 150kW/1500V All-SiC Grid-forming Photovoltaic Synchronous Generator (PVSG) 150kW/1500V全碳化硅并网光伏同步发电机硬件设计
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773550
Zibo Chen, Houshang Salimian Rizi, Wei Xu, Ruiyang Yu, A. Huang
{"title":"Hardware Design of a 150kW/1500V All-SiC Grid-forming Photovoltaic Synchronous Generator (PVSG)","authors":"Zibo Chen, Houshang Salimian Rizi, Wei Xu, Ruiyang Yu, A. Huang","doi":"10.1109/APEC43599.2022.9773550","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773550","url":null,"abstract":"Synchronous generators are being gradually replaced by power electronics based renewable energy generations. However, this may reduce the power system stability and resiliency due to a reduced inertia support to the grid. A viable solution is to change the inverter from grid-following to grid-forming which provides grid inertia. An ideal grid forming PV inverter should operate at the maximum power point to maximize the energy production while providing the inertia and other grid forming functions. This paper presents the design of a 150kW/1500V silicon carbide grid-forming Photovoltaic Synchronous Generator (PVSG). The developed PVSG integrates a 150kW three-phase PV inverter, a 100kW DC-DC converter and a 2.4F supercapacitor energy storage for inertia support. An inverter peak efficiency of 99.1% and a DC-DC converter efficiency of 99.5% are predicted or tested.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131446110","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: 9
Magnetic Core Losses under Square-wave Excitation and DC Bias in High Frequency Regime 高频方波激励和直流偏压下的磁芯损耗
2022 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2022-03-20 DOI: 10.1109/APEC43599.2022.9773563
Bima Nugraha Sanusi, Z. Ouyang
{"title":"Magnetic Core Losses under Square-wave Excitation and DC Bias in High Frequency Regime","authors":"Bima Nugraha Sanusi, Z. Ouyang","doi":"10.1109/APEC43599.2022.9773563","DOIUrl":"https://doi.org/10.1109/APEC43599.2022.9773563","url":null,"abstract":"This paper aims to provide more insight into core losses at high frequency (MHz range) with superimposed DC bias. Inductive cancellation method is employed to reduce measurement sensitivity to phase errors. PC200 material was used for frequency range 1 - 3 MHz. Measurement results show higher $B$ field excitation results in ß parameter shift in Steinmetz parameter. At higher frequency, similar behaviour is found in α parameter. DC bias is found to bring significant loss increase. To address the parameter shift and increased losses, several new modifications are proposed. The ßeff and αeff improves the curve fitting accuracy. The Hinc and γ are proposed to account for DC bias impact. These modifications can help core losses prediction for engineers.","PeriodicalId":127006,"journal":{"name":"2022 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"43 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126994287","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
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