检索结果-内蒙古大学图书馆

A Study on Power-Based Modeling for Predicting Nonlinear Compressed Air Flow Patterns

Transactions of the Korean Institute of Electrical Engineers 2025年第3期74卷 500-505页

作者： Lim, Chae-Young Yeo, Chae-Eun Kim, Kyung-Ho Dept. of Electrical and Electronic Engineering Dankook University Korea Republic of Dept. of Energy Environment IT Convergence Center Institute for Advanced Engineering Korea Republic of

In smart factory manufacturing processes, irregular and uncertain environmental factors can lead to unexpected equipment failures or abnormal operations, resulting in product defects, safety incidents, and energy waste, which ultimately reduce productivity. To prevent these issues and ensure stable equipment operation, it is essential to accurately predict not only equipment failures but also energy consumption. Maximizing energy efficiency requires a predictive model that comprehensively considers both equipment status and energy usage patterns. This study proposes a machine learning-based flow pattern prediction model using power data from smart factory manufacturing processes. The model utilizes Multi-Layer Perceptron (MLP), Convolutional Neural Network (CNN), and Long Short-Term Memory (LSTM) algorithms to predict equipment power consumption and flow patterns. By applying these prediction models to a digital twin framework, the study demonstrates the potential to optimize energy consumption. Copyright © The Korean Institute of Electrical Engineers.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

A Development of PSS/E UDM of ESS Plant Controller for Verification of Grid Connection Code

引用

Transactions of the Korean Institute of Electrical Engineers 2025年第1期74卷 1-6页

作者： Jung, JooYong Kim, NamKyu Kwon, YoungJin Yang, JaeYoung Dept. of Power System Research Hyosung Corporation Korea Republic of Dept. of Electrical and Electronic Engineering Yonsei University Korea Republic of

In response to the increase in renewable energy sources, large-scale Energy Storage systems (ESS) are being deployed in the power grid. When power facilities composed of large-scale plants are connected to the grid, it is necessary to verify detailed engineering assessment and grid code compliance. To successfully conduct these evaluations using power system analysis programs, detailed modeling of the ESS plant is required. This paper presents the development of a User Defined Model (UDM) for ESS plant controllers, which is essential for performing engineering assessment and assessing grid connection code of ESS plants using PSS/E, a large-scale power system analysis program. Through various case studies, it was verified that the control performance required by grid connection code could be achieved by regulating the power based on a Point Of Interconnection (POI) by the plant controller, which manages multiple inverters in the ESS plant. © 2025 Korean Institute of Electrical Engineers. All rights reserved.

关键词： Computer software selection and evaluation

来源：评论

学校读者我要写书评

暂无评论

An Analysis on Harmonic Interaction of Grid Connected STATCOM Based on Impedance Modeling

引用

Transactions of the Korean Institute of Electrical Engineers 2024年第11期73卷 1904-1909页

作者： Jung, JooYong Kwon, YoungJin Kim, NamKyu Dept. of Power System Research Hyosung Corporation Korea Republic of Dept. of Electrical and Electronic Engineering Yonsei University Korea Republic of

To mitigate the instability of power systems caused by the increasing penetration of renewable energy sources, the installation of Static Synchronous Compensator(STATCOM), which serve as reactive power compensation devices, is on the rise. These devices, composed of converters with switching elements, generate harmonics, which can lead to harmonic interaction issues with nearby power electronics based equipment. Therefore, a detailed analysis of harmonic interaction is required when designing and operating STATCOM systems. In this paper, impedance modeling of the power system and STATCOM is implemented using Matlab software, and the possibility of resonance occurrence due to changes in controller parameters when integrating STATCOM into the power system is analyzed. © The Korean Institute of Electrical Engineers.

关键词： MATLAB

来源：评论

学校读者我要写书评

暂无评论

Unscented Kalman Filter-based Beam Tracking in NR MIMO system using Hybrid Beamforming 14

Unscented Kalman Filter-based Beam Tracking in NR MIMO Syste...

引用

14th International Conference on Ubiquitous and Future Networks, ICUFN 2023

作者： Sin, Seungseok Sim, Yuna Cho, Jihun Kim, Kyunam Moon, Sangmi Hwang, Intae Chonnam National University Dept. of Ict Convergence System Engineering Gwangju Korea Republic of Alps Electric Korea Co. Ltd. Gwangju Korea Republic of Korea Nazarene University Dept. of It Intelligence Cheonan Korea Republic of Chonnam National University Dept. of Ict Convergence System Engineering and Electronic Engineering Gwangju Korea Republic of

ISBN: (纸本)9798350335385

Unmanned aerial vehicles (UAVs) and millimeterwave frequencies play key roles in supporting 5G wireless communication systems. They expand the field of wireless communication by increasing the data capacities of communication systems and supporting high data rates. However, short wavelengths, owing to the high millimeter-wave frequencies can cause problems, such as signal attenuation and path loss. To address these limitations, research on high directional beamforming technologies continue to garner interest. Furthermore, owing to the mobility of the UAVs, it is essential to track the beam angle accurately to obtain full beamforming gain. This study presents a beam tracking method based on the unscented Kalman filter using hybrid beamforming. The simulation results reveal that the proposed beam tracking scheme improves the overall performance in terms of the mean-squared error and spectral efficiency. In addition, by expanding analog beamforming to hybrid beamforming, the proposed algorithm can be used even in multi-user and multi-stream environments to increase data capacity, thereby increasing utilization in new-radio multiple-input multiple-output orthogonal frequency-division multiplexing systems. © 2023 IEEE.

关键词： 5G mobile communication systems

来源：评论

学校读者我要写书评

暂无评论

Cooperative Beam Selection based on Fingerprint Database using User Types in Unmanned Aerial Vehicle Supported systems 14

Cooperative Beam Selection based on Fingerprint Database usi...

引用

14th International Conference on Ubiquitous and Future Networks, ICUFN 2023

作者： Sim, Yuna Sin, Seungseok Cho, Jihun Kim, Kyunam Moon, Sangmi Hwang, Intae Chonnam National University Dept. of Ict Convergence System Engineering Gwangju Korea Republic of Alps Electric Korea Co. Ltd Gwangju Korea Republic of Korea Nazarene University Dept. of It Intelligence Cheonan Korea Republic of Chonnam National University Dept. of Ict Convergence System Engineering and Electronic Engineering Gwangju Korea Republic of

ISBN: (纸本)9798350335385

Unmanned aerial vehicles (UAVs) are attracting attention in the New Radio (NR) system due to their high altitude and mobility features, but high altitude UAVs can be greatly affected by interference between different cells with high line-of-sight (LOS) probabilities. Therefore, in this paper, we propose an algorithm to select the optimal beam to reduce the effect of interference and maximize the transmission efficiency. The proposed algorithm is divided into a process of constructing a user position-based fingerprint database that stores the necessary information and a cooperative beam selection process. As a performance analysis indicator, the Signal-to-Interference-plus-Noise Ratio Cumulative Distribution Function (SINR CDF) was used. © 2023 IEEE.

关键词： Signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

A New Transition Structure between Microstrip and Substrate Integrated Waveguide 10

A New Transition Structure between Microstrip and Substrate ...

引用

10th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2024

作者： Kang, Huijune Park, Kyungmin Yoo, Minjong Jang, Youna Ahn, Dal Soonchunhyang University Dept. of ICT Convergence Asan-Si Korea Republic of Soonchunhyang University Dept. of Electrical Communication System Engineering Asan-Si Korea Republic of Soonchunhyang University Dept. of Electrical Engineering Asan-Si Korea Republic of

ISBN: (纸本)9798350364163

In this paper, transition structures from microstrip to SIW (Substrate Integrated Waveguide) are proposed for an efficient transition. Transition structures reduce return loss and insertion loss by eliminating electric field discontinuity and impedance matching between microstrip and SIW. This paper proposes two transition structures using tapered lines. In the first transition structure, both the tapered lines and the SIW are designed on a single substrate. In the second transition structure, the SIW, which is designed on a separate substrate, is laminated over the substrate with the tapered lines. The single-substrate transition structure has the advantages of a simple manufacturing process and lower cost, while the laminated transition structure offers advantages in terms of design flexibility, performance optimisation and miniaturization. Both designs have reflection loss of less than 20dB and insertion loss of less than 3dB in the frequency range of 8~12GHz. © 2024 IEEE.

关键词： Substrate integrated waveguides

来源：评论

学校读者我要写书评

暂无评论

Design of Broadband Microstrip Interdigital Bandpass Filter Using Coupling Matrix 10

Design of Broadband Microstrip Interdigital Bandpass Filter ...

引用

10th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2024

作者： Park, Kyungmin Yoo, Minjong Kang, Huijune Jang, Youna Ahn, Dal Soonchunhyang University Dept. of ICT Convergence Asan-Si Korea Republic of Soonchunhyang University Dept. of Electric Communication System Engineering Asan-Si Korea Republic of Soonchunhyang University Dept. of Electrical Engineering Asan-Si Korea Republic of

ISBN: (纸本)9798350364163

This paper proposes a structure for a 15th order interdigital bandpass filter in the S-band range, designed by extracting the group delay and coupling coefficients through EM simulation using a coupling matrix. The proposed filter is designed as a broadband filter with a center frequency of 3.75 GHz and a bandwidth of 2 GHz. The designed filter has an insertion loss of 3.78 dB and a return loss of 12.17 dB in the specified frequency band. Additionally, to achieve miniaturization, a substrate with a dielectric constant of 10.2 was used, and the substrate's dimensions are 28.5 × 9.5 × 4.4 mm3 © 2024 IEEE.

关键词： Group delay

来源：评论

学校读者我要写书评

暂无评论

A Study on the Efficient ESS Charging/Discharging Operation Algorithm in LVDC Microgrid Environment

引用

Transactions of the Korean Institute of Electrical Engineers 2024年第6期73卷 1063-1073页

作者： Jung, Sang-Woo An, Yoon-Young Kim, Ki-Il Dept. of Computer Science and Engineering Chungnam National University Korea Republic of ICT Convergence Standards Research Division Electronics and Telecommunications Research Institute Korea Republic of

Modern power systems are developing in a sustainable and energy-efficient direction, and research on intelligent power grids that accommodate new and renewable energy is being actively conducted. Since new and renewable energy-based distributed power generation systems and ESS are output as DC power, the DC microgrid reduces the power conversion step and improves the stability and efficienc of the power distribution network. The core of this study is to compare and analyze the performance of the three charge/discharge operation algorithms based on AI prediction in the LVDC microgrid environment. The AI server learns real-time data through interworking with the EMS to predict future load usage and solar power generation, and performs the charge/discharge operation algorithm of ESS based on the collected ESS state data. This paper presents the configuration of the LVDC microgrid testbed, the integration method between EMS and electrical facilities, and analyzes the performance of the developed ESS charge/discharge operation algorithm. It also evaluates the effectiveness of each operation algorithm through actual operation data and simulation, analyzes how these strategies contribute to system load reduction and energy efficiency improvement, and provides guidelines for selecting the optimal ESS charge/discharge operation algorithm under specific conditions. © The Korean Institute of Electrical Engineers.

关键词： Solar energy

来源：评论

学校读者我要写书评

暂无评论

Flux-Weakening Control Methods Using the Feed-Forward Compensation of a Wound Field Synchronous Motor

引用

Transactions of the Korean Institute of Electrical Engineers 2025年第3期74卷 447-454页

作者： Kim, Han-Vit Lee, June-Hee Kim, Do-Hyeon Lee, June-Seok Dept. of Electrical and Electronic Engineering Dankook University Korea Republic of Propulsion System Lab Korea Railroad Research Institute Korea Republic of

This paper proposes a flux-weakening control methods using the feed-forward compensation of a wound field synchronous motor (WFSM). Typically, in the high-speed region, the voltage applied to the motor is limited by the maximum output of the inverter and Proportional-Integral (PI) controller is used to maintain this constant voltage. However, as the speed increases, the control performance deteriorates when the bandwidth of the controller is small. Therefore, this paper applies a feed-forward compensation method to improve controller performance during high-speed operation. Due to the control characteristics of WFSM, the feed-forward compensation components can be mathematically derived into d-axis current compensation and field current compensation, depending on the two flux-weakening methods. As a result, the proposed methods can use a small bandwidth that is robust to noise and enhances control stability. The validity of the proposed method is verified by experimental results. Copyright © The Korean Institute of Electrical Engineers.

关键词： Transient analysis

来源：评论

学校读者我要写书评

暂无评论

Hybrid ARQ for URLLC Using Deep Learning 15

Hybrid ARQ for URLLC Using Deep Learning

引用

15th International Conference on Information and Communication Technology convergence, ictC 2024

作者： Kusi, Narayan Prasad Ahn, Sung Hwan Kim, Dong Ho Seoultech University Dept. of Integrated It Engineering Seoul Korea Republic of Seoultech University Dept. of Smart Ict Convergence Engg. Seoul Korea Republic of

ISBN: (纸本)9798350364637

This study proposes early HARQ based on Deep learning techniques to predict the decodability of a received codeword early within few decoding iterations of the initial redundancy version(RV) of the codeword. The transmitter reacts with the transmission of the required RV versions in accordance with the feedback. system level simulation is performed for the performance analysis. The simulation shows the significant improvement of link throughput and reduction of delay in comparison to the traditional HARQ maintaining the BLER performance with traditional HARQ. © 2024 IEEE.

关键词： Contrastive Learning

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：