检索结果-内蒙古大学图书馆

Symmetrical Operation of Four Channel Resonant Boost DC-DC Converters in Continuous Conduction Mode

Symmetrical Operation of Four Channel Resonant Boost DC-DC C...

2024 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2024

作者： Hamar, János Stumpf, Péter Bándy, Kristóf Orvai, Róbert Department of Automation and Applied Informatics Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Műegyetem rkp. 3 Budapest1111 Hungary

ISBN: (纸本)9783800762620

The steady-state operation of a four channel resonant step-up dc/dc converter is presented and analyzed in continuous current conduction mode (CCM). The converter is equipped with two input channels, four output channels, and facilitates zero voltage (ZVS) and/or zero current switching (ZCS), which help reducing the switching losses. The quasi-sinusoidal waveforms assist in improving the EMI characteristics. The relations among the input and output voltages, with the use of the control variables, are derived. The effect of the control variables on the operation is evaluated. The theoretical results are verified by computer simulations and experimental tests. © VDE VERLAG GMBH · Berlin · Offenbach.

关键词： DC-DC converters

来源：评论

学校读者我要写书评

暂无评论

An Evaluation of the Dual Vectors Based Solutions for Robot-World/Hand-Eye Calibration 1

引用

25th International Symposium on Measurement and control in Robotics, ISMCR 2023

作者： Ganciu, Aura Burlacu, Adrian Department of Automatic Control and Applied Informatics Faculty of Automatic Control and Computer Engineering "Gheorghe Asachi" Technical University of Iași Iași Romania

ISBN: (数字)9783031510854

ISBN: (纸本)9783031510847

The hand-eye calibration problem represents a major challenge in robotics, arising from the widespread usage of robotic systems along with robot-mounted sensors. Briefly, consisting of estimating the position and orientation of a visual sensor (usually a camera attached to the robot’s end-effector) with respect to the robot itself, calibration is critical in tracking rigid bodies—a common task within mixed reality applications. Hand-eye calibration implies solving the problem formulated as AX = XB or AX = YB equations. The solution lies in computing the unknown homogeneous transformation matrices X and Y, given the A and B parameterizations of rigid body motions. We present the dual vectors based approaches for AX = XB and AX = YB calibration problems, making use of the isomorphism between the special Euclidean group and the orthogonal dual tensor group. Comparisons with state-of-the-art algorithms are used to assess our obtained results. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Mixed reality

来源：评论

学校读者我要写书评

暂无评论

Efficient Time-Delay System Optimization with Auto-Configured Metaheuristics

Efficient Time-Delay System Optimization with Auto-Configure...

引用

2023 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2023

作者： Senkerik, Roman Byrski, Aleksander Guzowski, Hubert Janku, Peter Kadavy, Tomas Oplatkova, Zuzana Kominkova Matusu, Radek Pluhacek, Michal Pekar, Libor Smolka, MacIej Viktorin, Adam Tomas Bata University A.I. Lab Faculty of Applied Informatics Department of Informatics and Artificial Intelligence Zlin Czech Republic Tomas Bata University Faculty of Applied Informatics Department of Automation and Control Engineering Zlin Czech Republic Institute of Computer Science Agh University of Science and Technology Krakow Poland

ISBN: (纸本)9798350337020

This paper presents an experimental study that compares the performance of four selected metaheuristic algorithms for optimizing a time delay system model. Time delay system models are complex and challenging to optimize due to their inherent characteristics, such as non-linearity, multi-modality, and constraints. The study includes an explanation of the choice and core functionality of the selected algorithms, which are both baseline and state-of-the-art variants of self-organizing migrating algorithm (SOMA), state-of-the-art variant from the Success-History-based Adaptive Differential Evolution family of algorithms, with emphasis on diverse search (DISH algorithm), and Covariance Matrix Adaptation Evolution Strategy (CMA-ES) algorithm. The hyperparameters of the metaheuristic algorithms were set using the iRace automatic algorithm configuration framework. The paper emphasizes the importance of metaheuristic algorithms in control engineering for time-delay systems to develop more effective and efficient control strategies and precise model identifications. The experimental results highlight the effectiveness of the state-of-the-art algorithms with specific adaptive mechanisms like population organization process, diverse search and adaptation mechanisms ensuring a gradual transition from exploration to exploitation. Overall, this study contributes to understanding the challenges and advantages of using metaheuristic algorithms in control engineering for time delay systems. The results provide valuable insights into the performance of modern metaheuristic algorithms and can help guide the selection of appropriate adaptive mechanisms of metaheuristics. © 2023 IEEE.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Robust H∞ controller Design for Satellite Systems with Uncertain Inertia Matrix: A Linear Matrix Inequality Approach 7th

Robust H∞ Controller Design for Satellite Systems with Un...

引用

7th Computational Methods in Systems and Software, CoMeSySo 2023

作者： Shaikh, Ibrahim Emebu, Samuel Matušů, Radek Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín nám. T. G. Masaryka 5555 Zlín760 01 Czech Republic

ISBN: (纸本)9783031535482

This paper discusses the design of a robust H∞ controller for satellite systems that exhibit changes in its inertia matrix within a range of ±5%. Using MATLAB Simulink, the proposed approach is a Linear Matrix Inequality (LMI) by LMILAB Semidefinite programming solver in YALMIP. Simulation results demonstrate the controller’s effectiveness in stabilizing the system against disturbance and maintaining performance despite variations in the inertia matrix. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Disturbance rejection

来源：评论

学校读者我要写书评

暂无评论

Machine Learning Vulnerability Assessment of Ring Oscillator Physical Unclonable Functions

Machine Learning Vulnerability Assessment of Ring Oscillator...

引用

2023 International Conference on control, automation and Diagnosis, ICCAD 2023

作者： Kareem, Husam Dunaev, Dmitriy Budapest University of Technology and Economics Faculty of Electrical Engineering and Informatics Department of Automation and Applied Informatics Muegyetem rkp. 3. BudapestH-1111 Hungary

ISBN: (纸本)9798350347074

Devices authentication and cryptographic keys production techniques are implemented in various security applications. Because of its ability to generate unique, unclonable, and unpredictable cryptographic keys, physically unclonable functions (PUFs) have been utilized in various hardware security applications. However, PUFs can be vulnerable to adversary attacks like machine learning (ML)-based modeling attacks. Input-output combinations of PUFs are called challenge-response pairs (CRPs). This article provides a vulnerability assessment of three recent Ring Oscillator (RO) PUFs approaches against ML modeling attacks. Assuming that adversary obtains part of the RO-PUF CRPs, and they can be used to predict the unrevealed CRPs. The article has a secondary objective to assess the impact of aging on the tested RO-PUF approaches in regenerating the same response. © 2023 IEEE.

关键词： Machine learning

来源：评论

学校读者我要写书评

暂无评论

Diffusion probabilistic model based face anonymization in embedded environments 14

Diffusion probabilistic model based face anonymization in em...

引用

14th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2023

作者： Morvay, Balázs Tibor Béres, Bálint Torma, Szabolcs Szegletes, Luca Department of Automation and Applied Informatics Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economic Műegyetem rkp. 3 BudapestH-1111 Hungary

ISBN: (纸本)9798350325652

Computer vision systems depend on vast and diverse datasets to achieve optimal performance. However, in scenarios where data collection involves personal identifiable information, privacy-protecting legislation can impede the acquisition process. To address this challenge, we present a novel face anonymization pipeline capable of running on embedded platforms. The proposed methodology combines denoising diffusion probabilistic models (DDPMs) and advanced image super-resolution techniques, such as DFDNet and ESPCN, to achieve high-quality anonymized facial images while preserving crucial facial keypoint locations. We conduct a comprehensive evaluation of the pipeline’s performance, encompassing image quality, keypoint precision, and efficiency on two popular single-board computers, namely the Nvidia Jetson Nano and the Raspberry Pi 4B. The source code is available at https://***/balazsmorv/facediffusion. © 2023 IEEE.

关键词： Pipelines

来源：评论

学校读者我要写书评

暂无评论

Quadratic Regression Model Based Predictive control of PMSM Drives with Field Weakening Operation Capability Constrained to the Linear Modulation Range 32

Quadratic Regression Model Based Predictive Control of PMSM ...

引用

32nd IEEE International Symposium on Industrial Electronics, ISIE 2023

作者： Bándy, Kristóf Stumpf, Péter Budapest University of Technology and Economics Faculty of Electrical Engineering and Informatics Department of Automation and Applied Informatics Megyetem rkp. 3. H-1111 Budapest Hungary

ISBN: (纸本)9798350399714

Continuous control Set Model Predictive control in power electronics has prospective outlooks, however, due to the computational requirements, these techniques are still underutilized. In the paper, a novel method is discussed that allows the reduction of the complex optimization underlying the predictive control algorithm. However, the optimization is further restricted with a non-linear (circular) constraint, that allows the modulator to remain in the linear modulation region. The paper offers an effective solution to the optimization problem, with simulation results showing the effectiveness of the proposed method. © 2023 IEEE.

关键词： Electric drives

来源：评论

学校读者我要写书评

暂无评论

Target Capturing in an Ellipsoidal Region for a Swarm of Double Integrator Agents

引用

IEEE/CAA Journal of Automatica Sinica 2022年第5期9卷 801-811页

作者： Antonio Bono Luigi D'Alfonso Giuseppe Fedele Veysel Gazi IEEE Department of Informatics ModelingElectronics and Systems EngineeringUniversity of CalabriaRende 87036Italy Dept.Electrical and Electronics Eng. Faculty of EngineeringMarmara UniversityIstanbul 34722 Department of Control and Automation Engineering Faculty of Electrical and Electronics EngineeringYildiz Technical UniversityEsenler 34220Turkey

In this paper we focus on the target capturing problem for a swarm of agents modelled as double integrators in any finite space *** agent knows the relative position of the target and has only an estimation of its velocity and *** that the estimation errors are bounded by some known values,it is possible to design a control law that ensures that agents enter a user-defined ellipsoidal ring around the moving *** know the relative position of the other members whose distance is smaller than a common detection ***,in the case of no uncertainty about target data and homogeneous agents,we show how the swarm can reach a static configuration around the moving *** simulations are reported to show the effectiveness of the proposed strategy.

关键词： Agents-based systems cooperative control swarms target-capturing

来源：评论

学校读者我要写书评

暂无评论

Real-Time Validation of Quadratic Regression Model-Based Predictive control of Grid-Side Converters

Real-Time Validation of Quadratic Regression Model-Based Pre...

引用

2023 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2023

作者： Bándy, Kristóf Gábor Stumpf, Péter Pál Chowdhury, MD Moshiur Rahman Süto, Zoltán Department of Automation and Applied Informatics Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Műegyetem rkp. 3. BudapestH-1111 Hungary

ISBN: (纸本)9783800760916

A quadratic regression model-based predictive control method is presented for grid-side converters. The control scheme calculates the cost function for seven voltage vectors of the inverter and extends it to the entire modulation region using regression. Then a constrained optimization problem must be solved to find the most feasible control action in this continuous control space. The found optimal voltage vector can be generated using Pulse-Width Modulation methods. The control method is validated in a custom Hardware-in-the-Loop environment using model-based rapid-prototyping tools of Matlab/Simulink. Measurement results show the viability of the method. © VDE VERLAG GMBH · Berlin · Offenbach.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Load Comparison Between Two controlling Strategies for Wind Energy Conversion System Power-Boosting 16

Load Comparison Between Two Controlling Strategies for Wind ...

引用

16th IEEE International Symposium on applied Computational Intelligence and informatics, SACI 2022

作者： Bordeasu, Dorin Prostean, Octavian Vasar, Cristian Debes, Ali Department of Automation and Applied Informatics Timişoara Romania Control Engineering Siemens Gamesa Brande Denmark

ISBN: (数字)9781665481250

ISBN: (纸本)9781665481250

This paper explains in detail the development, validation and simulation of a standard PI controller that can boost the WECS (Wind energy conversion system) power through two strategies. In the first strategy, the power is boosted by increasing the generator angular velocity through the direct increase of the angular velocity of the wind turbine rotor by slightly pitching the blades. In the second strategy, the power is boosted by increasing the load torque of the generator, through the direct increase of the load torque of the wind turbine rotor. For achieving this goal, the following tasks have been accomplished: a wind energy conversion system nonlinear mathematical model has been developed, a gain scheduled proportional-integral (PI) controller as the baseline controller, and two gain scheduled proportional-integral (PI) power-boosting controllers for the two power-boosting strategies. For the power-boosting controllers, it is also presented a logic that switches between baseline and power booster controllers when certain wind speeds conditions are met. The response, stability, performance and the increase in the shaft torsion, tower and blades bending moments of the gain scheduled PI power-boosting controllers have been compared with the baseline controller. By comparing the output power response of the controllers, it can be seen that the power booster controllers boost the power when the defined conditions are met. Finally, for boosting the power of a WECS in certain conditions the most efficient way is by increasing the generator load torque, because this strategy increases the least the loading of the main components of a WECS. This power boosting strategy implementation it might require the change (or reinforcement) of the drive train shaft, if it cannot take the extra loading created by power boosting controller. © 2022 IEEE.

关键词： controllers

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：