检索结果-内蒙古大学图书馆

2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024

作者： Song, Xiaoqing Nawafleh, Yannal Rahman, Mohammad Dehan University of Arkansas Department of Electrical Engineering and Computer Science FayettevilleAR United States

ISBN: (纸本)9798350376067

Direct current (DC) systems require fast fault protection speed due to ultrafast transients with high currents in short circuit faults, where solid state circuit breakers (SSCBs) can perfectly fit. Compared to the traditional mechanical circuit breakers (MCBs), SSCBs demonstrate 10 to 100 orders of magnitude faster fault breaking speed and enhanced safety with arc-less fault current interruption. One remaining challenge of the SSCB is large conduction losses, resulting in heavy and bulky cooling systems. In this paper, a novel high efficiency multi-port SSCB is proposed, which reduces >50% conduction losses compared to conventional SSCB topology. The power loss reduction benefits and operation principles of the proposed multiport SSCB are analyzed. A SiC MOSFET based SSCB hardware prototype is built, and experimental results validate the feasibility and effectiveness of the proposed SSCB concept. © 2024 IEEE.

关键词： MOSFET devices

来源：评论

学校读者我要写书评

暂无评论

Securing Energy Equity With Multilayer Market Clearing

IEEE Transactions on Energy Markets, Policy and Regulation

引用

IEEE Transactions on Energy Markets, Policy and Regulation 2024年第3期2卷 301-312页

作者： Zhang, Qiwei Li, Fangxing The University of Tennessee Min H. Kao Department of Electrical Engineering and Computer Science KnoxvilleTN37996 United States

Energy equity has been quickly gaining attention as policymakers seek to place 'Clean Energy for ALL' at the center of the low-carbon energy transition. Power system researchers have started to build the groundwork for incorporating energy equity into grid modernization. However, existing research has mostly focused on energy equity from a policy perspective, such as concept clarifications and tariff designs for residential customers. Little effort has been devoted to discussing energy equity in wholesale markets and to reflecting energy equity in electricity price with technical models. To the best of our knowledge, this paper presents the first study attempting to understand and implement energy equity consideration within a physically constrained electricity market-clearing model. First, we identify and discuss several concerns regarding energy equity in the existing locational marginal pricing (LMP) model. Then, we propose a multilayer framework reflecting energy equity in LMPs. Finally, the proposed framework is elaborated via a modified PJM 5-bus system and demonstrated with the WECC 179-bus system. © 2023 IEEE.

关键词： Power markets

来源：评论

学校读者我要写书评

暂无评论

TILE: Input Structure Optimization for Neural Networks to Accelerate Secure Inference 40

TILE: Input Structure Optimization for Neural Networks to Ac...

引用

40th Annual computer Security Applications Conference, ACSAC 2024

作者： Feng, Yizhou Zhang, Qiao Cai, Yifei Wu, Hongyi Xin, Chunsheng Department of Electrical and Computer Engineering Old Dominion University NorfolkVA United States College of Computer Science Chongqing University Chongqing China Department of Electrical and Computer Engineering University of Arizona TucsonAZ United States

ISBN: (纸本)9798331520885

Machine Learning as a Service (MLaaS) is an innovative framework that enables a broad range of users to capitalize on the powerful Artificial Intelligence (AI) technologies. Nevertheless, MLaaS raises a privacy concern for both the client data and server model. To address this issue, several Secure Inference (SI) frameworks for MLaaS have been proposed in the literature that take advantage of Homomorphic Encryption (HE) operations. However, the computation cost of these frameworks is still high, especially for real-time applications. In this paper, we propose a novel system called input structure optimization for neural networks (TILE) to accelerate SI. The goal of TILE is to reduce both linear and non-linear computation costs, as well as non-linear communication costs in MLaaS, while maintaining the model accuracy. TILE defines two novel HE-friendly input structures: Internal Tile and External Tile Structures, aimed at reducing the HE operations for SI. We also develop a search mechanism to identify optimal application locations for these input structures. We apply TILE to widely used models such as VGG and ResNet, and datasets including Cifar10 and Tiny-ImageNet. The experimental results demonstrate that TILE effectively reduces the computation time, with up to 51.57% reduction for a state-of-the-art SI framework. Furthermore, TILE can also be applied to models that have already been pruned to significantly reduce the computation time, to further reduce the overall computation time by 25.90%. © 2024 IEEE.

关键词： Structural optimization

来源：评论

学校读者我要写书评

暂无评论

Designing A Student Success Framework with Zachman Architecture

Designing A Student Success Framework with Zachman Architect...

引用

2024 ASEE Annual Conference and Exposition

作者： Chaback, Benjamin Edward Watson, Bryan C. Embry-Riddle Aeronautical University Department of Electrical Engineering and Computer Science United States

来源：评论

学校读者我要写书评

暂无评论

A Comparative Study on Prosumers Load Demand and Production Forecasting Using Machine Learning and Time Series Techniques 16

A Comparative Study on Prosumers Load Demand and Production ...

引用

16th International Conference on Applied and Theoretical Electricity, ICATE 2024

作者： Solea, Claudiu Hera, Corina Florea, Adrian Morariu, Daniel Stanescu, Dorel Vintan, Maria Lucian Blaga University of Sibiu Computer Science and Electrical Engineering Department Sibiu Romania

ISBN: (纸本)9798350388107

A data-driven and realistic policy could overcome the current turmoil in the intricate energy landscape. With solar and wind expanding faster than liquified natural gas or nuclear ever have, local, bottom-up solutions, such as organising collaboratively residential prosumers into electricity trading communities and the efficient use of aggregators, are one way to resilience and control over these resources. This paper analyses the features and characteristics of some prosumers and facilitates the identification of relevant algorithms for the specific tasks of both load demand and production forecasting using machine learning and time series techniques, thus enabling them to operate on a level playing field in the market. Load demand and production forecast simulations on two data sets, one collected in 2019, corresponding to 50 residential households and a public building from Portugal, and the other from 2023, that aggregates values from 29 household prosumers from Romania, show that both simple and double exponential smoothing techniques are more accurate than Markov predictors. Provided that the external contingencies influencing either the consumption or the production are considered, the latter gives a better prediction accuracy for energy production, whereas the former provides a better forecast for the consumption. © 2024 IEEE.

关键词： Demand response

来源：评论

学校读者我要写书评

暂无评论

A Hybrid Rectifier Mode Control for Communication-Free Wireless Power Transfer

A Hybrid Rectifier Mode Control for Communication-Free Wirel...

引用

2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024

作者： Zhu, Gangwei Dong, Jianning Bauer, Pavol Delft University of Technology Department of Electrical Engineering Mathematics and Computer Science Delft Netherlands

ISBN: (纸本)9798350376067

This paper presents a hybrid rectifier mode control for broad-range output power regulation in wireless power transfer (WPT) systems. The proposed control method employs a secondary-side active rectifier for output tuning, thereby eliminating the necessity for communication links. Furthermore, leveraging the pulse-skipping technique, two hybrid modes are introduced in the proposed approach. These hybrid modes reduce circulating reactive power within the resonant circuits, thereby optimizing the transmission efficiency of the WPT systems. To validate the effectiveness of the proposed method, experiments were conducted using a WPT prototype. Experimental results demonstrate that the proposed approach achieves higher efficiency than the conventional phase-shift control strategy, with a maximum efficiency improvement of up to 3.7%. © 2024 IEEE.

关键词： Inductive power transmission

来源：评论

学校读者我要写书评

暂无评论

A Large Model's Ability to Identify 3D Objects as a Function of Viewing Angle 6

A Large Model's Ability to Identify 3D Objects as a Function...

引用

6th IEEE International Conference on Artificial Intelligence and eXtended and Virtual Reality, AIxVR 2024

作者： Rubinstein, Jacob Ferraro, Francis Matuszek, Cynthia Engel, Don University of Maryland Department of Computer Science and Electrical Engineering BaltimoreMD United States

ISBN: (纸本)9798350372021

Virtual reality is progressively more widely used to support embodied AI agents, such as robots, which frequently engage in 'sim-to-real' based learning approaches. At the same time, tools such as large vision-and-language models offer new capabilities that tie into a wide variety of tasks and capabilities. In order to understand how such agents can learn from simulated environments, we explore a language model's ability to recover the type of object represented by a photorealistic 3D model as a function of the 3D perspective from which the model is viewed. We used photogrammetry to create 3D models of commonplace objects and rendered 2D images of these models from an fixed set of 420 virtual camera perspectives. A well-studied image and language model (CLIP) was used to generate text (i.e., prompts) corresponding to these images. Using multiple instances of various object classes, we studied which camera perspectives were most likely to return accurate text categorizations for each class of object. © 2024 IEEE.

关键词： Virtual reality

来源：评论

学校读者我要写书评

暂无评论

High Temperature Characterization and Degradation Test of a Cascode Gallium Nitride Field Effect Transistor 11

High Temperature Characterization and Degradation Test of a ...

引用

11th IEEE Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2024

作者： Rahman, Mohammad Dehan Hasan, Abu Shahir Md Khalid Mantooth, H. Alan Song, Xiaoqing University of Arkansas Department of Electrical Engineering and Computer Science FayettevilleAR United States

ISBN: (纸本)9798350375602

Gallium Nitride (GaN) is a wide bandgap semiconductor material known for its exceptional performance in high-Temperature and high-voltage environments. This makes GaN a preferred material for field-effect transistors (FETs) used in demanding applications. While GaN FETs are theoretically capable of operating at temperatures exceeding 200 {C}, practical applications often limit their maximum junction temperature to around 150 {C}, primarily due to packaging limitations, such as those associated with the standard TO-247 package. This paper presents an experimental analysis of the high-Temperature performance of GaN FETs, focusing on how elevated temperatures influence various operational parameters. Key areas of investigation include the impact on output characteristics, on-resistance ({R}-{{dson}}), threshold voltage ({V}-{{th}}), transfer characteristics, and gate leakage currents. Furthermore, the study examines potential degradation effects that may result from prolonged operation at elevated temperatures. The insights gained from this study are crucial for advancing the deployment of GaN FETs in applications that demand robust performance under extreme conditions, including automotive, aerospace, and industrial power systems. Ultimately, the findings will contribute to the development of more reliable and efficient power electronics, pushing the boundaries of GaN technology. © 2024 IEEE.

关键词： III-V semiconductors

来源：评论

学校读者我要写书评

暂无评论

Command, Control and Communications for Unmanned Aereal Systems in C-Band

Command, Control and Communications for Unmanned Aereal Syst...

引用

2024 International Symposium on Networks, computers and Communications, ISNCC 2024

作者： Alghamdi, Mubark Kostanic, Ivica Florida Institute of Technology Department of Electrical Engineering and Computer Science Melbourne United States

ISBN: (纸本)9798350364910

C band spectrum 5030-5091 MHz is allocated for command-and-control communication services with unmanned aircraft systems. This paper evaluates the possibility of using 3GPP 5G standards for provisioning of such services. Channelization of the spectrum and major system parameters are proposed. The performance of the proposed system in channel fading environment is evaluated using MATLAB based simulations. The evaluations examine SINR, and average throughput of the proposed system at different altitudes of the unmanned aircraft system. © 2024 IEEE.

关键词： MATLAB

来源：评论

学校读者我要写书评

暂无评论

Development and Demonstration of MW Modular Multilevel Converter based Reconfigurable Load Emulator

Development and Demonstration of MW Modular Multilevel Conve...

引用

2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024

作者： Wang, Jingxin Xu, Yang Wang, Fred Martin, Bob The University of Tennessee Department of Electrical Engineering and Computer Science KnoxvilleTN United States

ISBN: (纸本)9798350376067

This paper presents the design and development of a megawatt (MW) level modular multilevel converter (MMC) based reconfigurable load emulator with wide range of operation voltage and frequency. Through the modification of MMC's internal configuration with different numbers of submodules (SMs) connected in series and phase legs connected in parallel, the system adapts to various testing requirements, supporting up to 13.8kV in ac voltage and fundamental frequency reaching 3kHz, enhancing its versatility for evaluating power electronics converters. Meanwhile, a distributed control system is designed and implemented that is composed of one central controller, six arm controllers, and local controllers located in SMs. Moreover, a ramping PWM precharging method is utilized that can simultaneously precharge all the SMs using PWM with ramping duty cycle scheme to deal with the imbalanced impedance issue among different SMs caused by self-powered SM auxiliary power supply (APS). Finally, preliminary experimental results are presented to demonstrate the performance of the proposed reconfigurable load emulator. © 2024 IEEE.

关键词： Electric power system control

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：