检索结果-内蒙古大学图书馆

SSRN 2024年

作者： Liu, Hanchen Chen, Laijun Cui, Sen Chen, Siyuan Mei, Shengwei State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing100084 China

In response to climate change and the need to decrease carbon emissions, the penetration of renewable energies into power grids is growing dramatically. However, the high intermittence and low inertia of renewable energy pose significant risks to frequency security. The advanced adiabatic compressed air energy storage (AA-CAES) is a promising solution to enhancing grid frequency security due to its flexible and high inertia properties. Therefore, based on distributionally robust optimization, this paper proposes a dispatch strategy with the participation of AA-CAES to enhance frequency security. Firstly, a dispatch-friendly model of AA-CAES is proposed and can reflect the impacts of the part-load features on the dis-/charging efficiencies and capacities. Subsequently, a frequency response model with AA-CAES is presented to establish frequency security constraints, ensuring compliance with minimum inertia and maximum frequency deviation requirements. Furthermore, to cope with the randomness of renewable energy, this proposed model is formulated as a distributionally robust optimization problem with a "min-max-min" structure. In the day-ahead stage, the optimal on/off schedules for generators and AA-CAES can be determined according to the worst probability distribution in the second stage for providing sufficient grid inertia. In the intra-day stage, the generation and AA-CAES can be adjusted to minimize the frequency deviation. Finally, numerical studies are tested on the modified IEEE-39 bus system. The simulation results demonstrate the validity and feasibility of the proposed strategy with AA-CAES in supporting grid frequency security. © 2024, The Authors. All rights reserved.

关键词： Wind power

来源：评论

学校读者我要写书评

暂无评论

Robust Fault-tolerant control of Periodic Piecewise Time-varying systems Based on Matrix Polynomials

Robust Fault-tolerant Control of Periodic Piecewise Time-var...

引用

2023 China Automation Congress, CAC 2023

作者： Huang, Jiantai Xie, Xiaochen Lam, James Harbin Institute of Technology Shenzhen Department of Automation Shenzhen518055 China Institute for Automatic Control and Complex Systems University of Duisburg-Essen Duisburg47057 Germany The University of Hong Kong Department of Mechanical Engineering Hong Kong Hong Kong HKU Shenzhen Institute of Research and Innovation Shenzhen518057 China

ISBN: (纸本)9798350303759

This paper investigates the robust fault-tolerant control issue for a type of periodic piecewise time-varying systems (PPTVSs). The PPTVS is modeled considering the coexistence of external disturbances, structural parameter perturbations, and actuator failures in the system. Stability analysis is conducted for the considered PPTVS, and a sufficient condition concerning the exponential stability of the closed-loop system is given. Through a matrix polynomial approach capable of decoupling time-varying parameters, the robust fault-tolerant controller synthesis is transformed into a convex optimization problem. Flexible controller gains are enabled through selectable subinterval partitioning parameters. A sufficient condition is presented for maintaining the exponential stability, achieving H∞ disturbance attenuation, and obtaining a tractable robust fault-tolerant controller. Simulation verification using a multi-input multi-output PPTVS model shows that the designed controller can maintain the exponential stability under actuator failures, satisfy the H∞ performance index, and exhibiting robustness against structural parameter perturbations. © 2023 IEEE.

关键词： Closed loop systems

来源：评论

学校读者我要写书评

暂无评论

Grey Wolf Optimization Based Tuning of Terminal Sliding Mode controllers for a Quadrotor

引用

Computers, Materials & Continua 2021年第8期68卷 2265-2282页

作者： Rabii Fessi Hegazy Rezk Soufiene Bouallègue Research Laboratory in Automatic Control(LARA) National Engineering School of Tunis(ENIT)University of Tunis EL MANARTunis1002Tunisia College of Engineering at Wadi Addawaser Prince Sattam Bin Abdulaziz UniversityAl-Kharj11911Saudi Arabia Department of Electrical Engineering Faculty of EngineeringMinia UniversityMinia61517Egypt High Institute of Industrial Systems of Gabès(ISSIG) University of GabèsGabès6011Tunisia

The research on Unmanned Aerial Vehicles(UAV)has intensified considerably thanks to the recent growth in the fields of advanced automatic control,artificial intelligence,and *** this paper,a Grey Wolf Optimization(GWO)algorithm is proposed and successfully applied to tune all effective parameters of Fast Terminal Sliding Mode(FTSM)controllers for a quadrotor UAV.A full control scheme is first established to deal with the coupled and underactuated dynamics of the *** for altitude,attitude,and position dynamics become separately designed and *** work around the repetitive and time-consuming trial-error-based procedures,all FTSM controllers’parameters for only altitude and attitude dynamics are systematically tuned thanks to the proposed GWO *** a hard and complex tuning task is formulated as a nonlinear optimization problem under operational *** performance and robustness of the GWO-based control strategy are compared to those based on homologous metaheuristics and standard terminal sliding mode *** simulations are carried out to show the effectiveness and superiority of the proposed GWO-tuned FTSM controllers for the altitude and attitude dynamics’stabilization and *** statistical analyses revealed that the GWO algorithm is more competitive with high performance in terms of fastness,non-premature convergence,and research exploration/exploitation capabilities.

关键词： Quadrotor cascade control fast terminal sliding mode control grey wolf optimizer nonparametric Friedman analysis

来源：评论

学校读者我要写书评

暂无评论

Urban traffic congestion control: a DeePC change

arXiv

引用

arXiv 2023年

作者： Rimoldi, Alessio Cenedese, Carlo Padoan, Alberto Dörfler, Florian Lygeros, John Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zürich Physikstrasse 3 Zürich8092 Switzerland

Urban traffic congestion remains a pressing challenge in our rapidly expanding cities, despite the abundance of available data and the efforts of policymakers. By leveraging behavioral system theory and data-driven control, this paper exploits the DeePC algorithm in the context of urban traffic control performed via dynamic traffic lights. To validate our approach, we consider a high-fidelity case study using the state-of-the-art simulation software package Simulation of Urban MObility (SUMO). Preliminary results indicate that DeePC outperforms existing approaches across various key metrics, including travel time and CO2 emissions, demonstrating its potential for effective traffic management. Copyright © 2023, The Authors. All rights reserved.

关键词： Travel time

来源：评论

学校读者我要写书评

暂无评论

Impact of Natural Measurement Noise and Cyber Threats on Renewable Energy Metering in Smart Energy systems: A Case Study of Wind Turbines

Impact of Natural Measurement Noise and Cyber Threats on Ren...

引用

Iranian Conference on Renewable Energy and Distributed Generation (ICREDG)

作者： Daryoush Tavangar Rizi Mohammad Hassan Nazari Seyed Hossein Hosseinian Gevork B. Gharehpetian Maryam Fani Department of Physics and Energy Engineering Amirkabir University of Technology Tehran Iran Smart Control Systems Department Niroo Research Institute (NRI) Tehran Iran Department of Electrical Engineering Amirkabir University of Technology Tehran Iran

ISBN: (数字)9798331525132

ISBN: (纸本)9798331525149

This study explores the impact of natural measurement noise and cyber threats on renewable energy metering in smart energy systems, with a focus on wind turbines. The research examines the simultaneous distribution of diverse loads supported by energy storage devices, which enhances energy resource management and system efficiency. Additionally, the influence of cyber-attacks on wind turbine power measurement devices and the effects of natural noise and measurement failures on system operating costs and performance are analyzed. The findings highlight that cyberattacks induce a mean data deviation of 17.18%, significantly disrupting system reliability, while natural noise results in a deviation of 7.4%, indicating its notable yet lesser impact. These results emphasize the importance of advanced monitoring and mitigation strategies to safeguard renewable energy systems from disruptions caused by both noise and malicious interference. The proposed framework provides actionable insights for improving the resilience and efficiency of smart energy systems in practical scenarios.

关键词： Renewable energy sources Power measurement Prevention and mitigation Noise Energy measurement Wind turbines Noise measurement Reliability Monitoring Resilience

来源：评论

学校读者我要写书评

暂无评论

Accelerating Distributed Nash Equilibrium Seeking

Accelerating Distributed Nash Equilibrium Seeking

引用

European control Conference (ECC)

作者： Tatiana Tatarenko Angelia Nedić Department of Control Theory and Intelligent Systems TU Darmstadt German School of Electrical Computer and Energy Engineering Arizona State University USA

ISBN: (数字)9783907144107

ISBN: (纸本)9798331540920

This work proposes a novel distributed approach for computing a Nash equilibrium in convex games with restricted strongly monotone pseudo-gradients. By leveraging the idea of the centralized operator extrapolation method presented in [4] to solve variational inequalities, we develop the algorithm converging to Nash equilibria in games, where players have no access to the full information but are able to communicate with neighbors over some communication graph. The convergence rate is demonstrated to be geometric and improves the rates obtained by the previously presented procedures seeking Nash equilibria in the class of games under consideration.

关键词： Extrapolation Europe Games Nash equilibrium Topology Convergence

来源：评论

学校读者我要写书评

暂无评论

Bio-inspired Multi-agent Model and Optimization Strategy for Collaborative Aerial Transport

Bio-inspired Multi-agent Model and Optimization Strategy fo...

引用

Chinese Intelligent Automation Conference, CIAC 2021

作者： Huang, Kangyao Chen, Jingyu Oyekan, John Zhang, Xinyu Tsinghua University School of Vehicle and Mobility Beijing100084 China Department of Automatic Control and Systems Engineering The University of Sheffield Mappin Street SheffieldS1 3JD United Kingdom

ISBN: (纸本)9789811663710

Collaboration between robots provides solutions for transporting more complex and heavier loads. In this work, inspired by the ant colony foraging and transport, we put forward two collaborative models, Coupled-Carriers and Navigator-Carrier, for aerial cooperative transport. To achieve this, a linear quadratic regulator (LQR) is applied to optimize the performance. The results show the task of dual-drone transport of a bar load is successfully accomplished. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

A Moreau Envelope Approach for LQR Meta-Policy Estimation

A Moreau Envelope Approach for LQR Meta-Policy Estimation

引用

IEEE Conference on Decision and control

作者： Ashwin Aravind Mohammad Taha Toghani César A. Uribe Centre for Systems and Control IIT Bombay Mumbai MH India Department of Electrical and Computer Engineering Rice University Houston TX USA

ISBN: (数字)9798350316339

ISBN: (纸本)9798350316346

We study the problem of policy estimation for the Linear Quadratic Regulator (LQR) in discrete-time linear timeinvariant uncertain dynamical systems. We propose a Moreau Envelope-based surrogate LQR cost, built from a finite set of realizations of the uncertain system, to define a meta-policy efficiently adjustable to new realizations. Moreover, we design an algorithm to find an approximate first-order stationary point of the meta-LQR cost function. Numerical results show that the proposed approach outperforms naive averaging of controllers on new realizations of the linear system. We also provide empirical evidence that our method has better sample complexity than Model-Agnostic Meta-Learning (MAML) approaches.

关键词： Linear systems Uncertain systems Costs Uncertainty System realization Estimation Cost function Numerical models Trajectory Convergence

来源：评论

学校读者我要写书评

暂无评论

Designing Optimal Personalized Incentive for Traffic Routing using BIG Hype algorithm

arXiv

引用

arXiv 2023年

作者： Grontas, Panagiotis D. Cenedese, Carlo Fochesato, Marta Belgioioso, Giuseppe Lygeros, John Dörfler, Florian Automatic Control Laboratory Department of Electrical Engineering and Information Technology ETH Zürich Physikstrasse 3 Zürich8092 Switzerland

We study the problem of optimally routing plug-in electric and conventional fuel vehicles on a city level. In our model, commuters selfishly aim to minimize a local cost that combines travel time, from a fixed origin to a desired destination, and the monetary cost of using city facilities, parking or service stations. The traffic authority can influence the commuters' preferred routing choice by means of personalized discounts on parking tickets and on the energy price at service stations. We formalize the problem of designing these monetary incentives optimally as a large-scale bilevel game, where constraints arise at both levels due to the finite capacities of city facilities and incentives budget. Then, we develop an efficient decentralized solution scheme with convergence guarantees based on BIG Hype, a recently-proposed hypergradient-based algorithm for hierarchical games. Finally, we validate our model via numerical simulations over the Anaheim's network, and show that the proposed approach produces sensible results in terms of traffic decongestion and it is able to solve in minutes problems with more than 48000 variables and 110000 constraints. Copyright © 2023, The Authors. All rights reserved.

关键词： Travel time

来源：评论

学校读者我要写书评

暂无评论

Biological Influence of Low-Frequency Electromagnetic Field Exposition Based on Selected Cell Death Markers

Biological Influence of Low-Frequency Electromagnetic Field ...

引用

ELEKTRO

作者： Robert Cichorowski Olga Kocikowska Marek Bajtoš Roman Radil Ladislav Janoušek Daria Gendosz De Carrillo Sebastian Student Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology liwice Poland Department of Engineering and Systems Biology Faculty of Automatic Control Electronics and Computer Science Gliwice Poland Department of Physiology Faculty of Medical Sciences Silesian University of Medicine Katowice Poland Department of Electromagnetic and Biomedical Engineering Faculty of Electrical Engineering and Informational Technology Žilina Slovakia Department of Histology Faculty of Medical Sciences in Zabrze Silesian University of Medicine Zabrze Poland Biotechnology Center Silesian University of Technology Gliwice Poland

ISBN: (数字)9798350372359

ISBN: (纸本)9798350372366

This work presents the results of the examination of the HeLa cell line exposure on the ELF-EMF (extremely low-frequency electromagnetic field). In particular, the relationship between ELF-EMF exposition time and cell death. The examination of cell death hallmarks were examined by estimation levels of selected proteins - FACL4 (a protein that is a part of the ferroptosis pathway) and CK18 (Cytokeratin related to necrosis and apoptosis pathways) in the proposed model of workers exposed to ELF-EMF week.

关键词： Proteins Biological system modeling Estimation Electromagnetic fields

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：