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8th Southern Power Electronics Conference and the 17th Brazilian Power Electronics Conference, SPEC / COBEP 2023

作者： Zerdali, Emrah Rivera, Marco Wheeler, Patrick Toledo, Sergio Ege University Department of Electrical and Electronics Engineering Izmir Turkey University of Nottingham Power Electronics and Machine Centre - Pemc Faculty of Engineering 15 Triumph Rd Lenton NottinghamNG7 2GT United Kingdom Vicerrectoría de Innovación Universidad de Talca Laboratorio de Conversión de Energías y Electrónica de Potencia - Lceep Merced 437 Curicó3341717 Chile Universidad Nacional de Asunción Laboratory of Power and Control Systems Luque2060 Paraguay

ISBN: (纸本)9798350321128

Predictive direct speed control (PDSC) of electric motors makes the control of both electrical and mechanical systems possible over a single control law by eliminating the cascade control structure. Speed-sensorless control also reduces the cost of electric drive while increasing system reliability. In this paper, a speed-sensorless PDSC-based permanent magnet synchronous motor (PMSM) drive is proposed, which combines the advantages of speed-sensorless control and the PDSC strategy. An extended Kalman filter (EKF) is designed to estimate stator currents, speed, position, and load torque. By using estimated stator currents in the prediction models of the PDSC, a reduction in current/torque ripples is achieved. Additionally, EKF uses a PMSM model defined in the stator stationary reference frame to eliminate the adverse effect of the initial position estimation errors. The proposed drive system is tested in different operating conditions, and finally, satisfactory control performance is achieved overall. © 2023 IEEE.

关键词： Model predictive control permanent magnet synchronous motor predictive direct speed control speed-sensorless control

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Predictive Direct Speed control of PMSM without Weighting Factors 8

Predictive Direct Speed Control of PMSM without Weighting Fa...

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8th Southern Power Electronics Conference and the 17th Brazilian Power Electronics Conference, SPEC / COBEP 2023

作者： Zerdali, Emrah Rivera, Marco Wheeler, Patrick Toledo, Sergio Ege University Department of Electrical and Electronics Engineering Izmir Turkey Power Electronics and Machine Centre-PEMC University of Nottingham Faculty of Engineering 15 Triumph Rd Lenton NottinghamNG7 2GT United Kingdom Vicerrectoría de Innovación Universidad de Talca Laboratorio de Conversión de Energías y Electrónica de Potencia - Lceep Merced 437 Curicó3341717 Chile Universidad Nacional de Asunción Laboratory of Power and Control Systems Luque2060 Paraguay

ISBN: (纸本)9798350321128

Predictive direct speed control (PDSC) of electric drives eliminates the cascade control structure and provides faster speed and current/torque response, but suffers from the selection of weighting factors (WFs). This paper proposes a PDSC strategy without WFs for permanent magnet synchronous motor (PMSM) drives. The proposed method evaluates each control objective separately and decides on the optimum voltage vector using normalized Euclidean distances in n-dimensional space generated by the objective functions. Simulation results show that it provides good control performance in different operating conditions with its inherent overcurrent protection feature while simplifying the design process. Finally, the proposed method overcomes the difficulty of WF selection in the traditional PDSC strategy with a slight additional computational load and also improves the overall control performance. © 2023 IEEE.

关键词： Model predictive control permanent magnet synchronous motor predictive direct speed control weighting factors

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A Unifying Passivity-Based Framework for Pressure and Volume Flow Rate control in District Heating Networks

arXiv

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arXiv 2023年

作者： Strehle, Felix Machado, Juan E. Cucuzzella, Michele Malan, Albertus J. Scherpen, Jacquelien M.A. Hohmann, Sören Karlsruhe76131 Germany The Jan C. Willems Center for Systems and Control ENTEG Faculty of Science and Engineering University of Groningen Nijenborgh 4 Groningen9747 AG Netherlands The Department of Electrical Computer and Biomedical Engineering University of Pavia via Ferrata 5 Pavia27100 Italy

A fundamental precondition for the secure and efficient operation of district heating networks (DHNs) is a stable hydraulic behavior. However, the ongoing transition towards a sustainable heat supply, especially the rising integration of distributed heat sources and the increasingly meshed topologies, introduce complex and potentially destabilizing hydraulic dynamics. In this work, we propose a unifying, passivity-based framework which guarantees asymptotic stability of any forced hydraulic DHN equilibrium while allowing for meshed, time-varying topologies and different, dynamically interacting distributed heat sources. To establish the desired hydraulic equilibria, we propose decentralized, passivity-based pressure and volume flow rate controllers for the pumps and valves in the actuated DHN subsystems. In particular, we leverage the equilibrium-independent passivity (EIP) properties of the DHN subsystems, the skew-symmetric nature of their interconnections, and LaSalle's Invariance principle to assess asymptotic stability in a modular manner. The obtained results hold for the state-of-the-art as well as future DHN generations featuring, for example, multiple distributed heat sources, asymmetric pipe networks, and multiple temperature layers. We verify our findings by means of simulations. Copyright © 2023, The Authors. All rights reserved.

关键词： Asymptotic stability

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Defining, measuring, and modeling passenger's in-vehicle experience and acceptance of automated vehicles

arXiv

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arXiv 2023年

作者： Bhide, Neeraja Hashimoto, Nanami Dokurno, Kazimierz Van der Hoorn, Chris Hoogendoorn-Lanser, Sascha Nordhoff, Sina Delft Center for Systems and Control Delft University of Technology Netherlands Department of Cognitive Robotics Delft University of Technology Netherlands Faculty of Electrical Engineering Mathematics and Computer Science University of Twente Netherlands Department Transport & Planning Delft University of Technology Netherlands

Automated vehicle acceptance (AVA) has been measured mostly subjectively by questionnaires and interviews, with a main focus on drivers inside automated vehicles (AVs). To ensure that AVs are widely accepted by the public, ensuring the acceptance by both drivers and passengers is key. The in-vehicle experience of passengers will determine the extent to which AVs will be accepted by passengers. A comprehensive understanding of potential assessment methods to measure the passenger experience in AVs is needed to improve the in-vehicle experience of passengers and thereby the acceptance. The present work provides an overview of assessment methods that were used to measure a driver's behavior, and cognitive and emotional states during (automated) driving. The results of the review have shown that these assessment methods can be classified by type of data-collection method (e.g., questionnaires, interviews, direct input devices, sensors), object of their measurement (i.e., perception, behavior, state), time of measurement, and degree of objectivity of the data collected. A conceptual model synthesizes the results of the literature review, formulating relationships between the factors constituting the in-vehicle experience and AVA acceptance. It is theorized that the in-vehicle experience influences the intention to use, with intention to use serving as predictor of actual use. The model also formulates relationships between actual use and well-being. A combined approach of using both subjective and objective assessment methods is needed to provide more accurate estimates for AVA, and advance the uptake and use of AVs. © 2023, CC BY.

关键词： Vehicles

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Port-Hamiltonian Modeling of Hydraulics in 4th Generation District Heating Networks

Port-Hamiltonian Modeling of Hydraulics in 4th Generation Di...

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IEEE Conference on Decision and control

作者： Felix Strehle Juan E. Machado Michele Cucuzzella Albertus J. Malan Jacquelien M.A. Scherpen Sören Hohmann Institute of Control Systems Karlsruhe Institute of Technology (KIT) Karlsruhe Germany Jan C. Willems Center for Systems and Control ENTEG Faculty of Science and Engineering University of Groningen AG Groningen the Netherlands Department of Electrical Computer and Biomedical Engineering University of Pavia Pavia Italy

ISBN: (数字)9781665467612

ISBN: (纸本)9781665467629

In this paper, we use elements of graph theory and port-Hamiltonian systems to develop a modular dynamic model describing the hydraulic behavior of 4th generation district heating networks. In contrast with earlier generation networks with a single or few heat sources and pumps, newer installations will prominently feature distributed heat generation units, bringing about a number of challenges for the control and stable operation of these systems, e.g., flow reversals and interactions among pumps controllers, which may lead to severe oscillations. We focus thus on flexible system setups with an arbitrary number of distributed heat sources and end-users interconnected through a meshed, multi-layer distribution network of pipes. Moreover, differently from related works on the topic, we incorporate dynamic models for the pumps in the system and explicitly account for the presence of pressure holding units. By inferring suitable (power-preserving) interconnection ports, we provide a number of claims about the passivity properties of the overall, interconnected system, which proves to be highly beneficial in the design of decentralized control schemes and stability analyses.

关键词： Heating systems Heat pumps Decentralized control Hydraulic systems Interconnected systems Distribution networks Stability analysis

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A Prototype of an Arduino-Based Home Automation System

A Prototype of an Arduino-Based Home Automation System

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International Conference on Advanced systems and Electric Technologies (IC_ASET)

作者： Yamna Ghoul Naoufel Zitouni Assaad Jmal LR11ES20 Analysis Conception and Control of Systems Laboratory University of Tunis El Manar National Engineering School of Tunis Le Belvédère Tunis Tunisia Faculty of Sciences of Tunis Loboratory of Applications of Energy Efficiency and Renewable Energies UR-LAPER Tunis El Manar University Tunis Tunisia Electrical Engineering Department Control and energy management laboratory (CEM lab) - BP 1173 Sfax University Engineering National School Sfax Tunisia

ISBN: (数字)9798350384895

ISBN: (纸本)9798350384901

This paper explores the realm of home automation, focusing on the development and implementation of a sophisticated system leveraging Internet of Things (IoT) technology. The core of the proposed system revolves around the Arduino Nano board, showcasing its adaptability and versatility. A DHT11 sensor is utilized to actively collect current information on temperature and humidity, and a MQ2 sensor is deployed to monitor kitchen gas leaks with an Arduino microcontroller processing this data. The continuously refreshed data is subsequently sent to an Android mobile app through the Zigbee protocol. The home automation system presented in this paper boasts a unique combination of essential features, including real-time functionality, cost-effectiveness, flexibility, upgradability, and reconfiguration capabilities. This research contributes to the expanding landscape of home automation by providing an innovative solution that addresses key aspects of modern living.

关键词： Temperature sensors Temperature measurement Temperature distribution Home automation Microcontrollers Zigbee Smart homes

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Open access resources to support the first course in feedback, dynamics and control

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IFAC-PapersOnLine 2022年第17期55卷 1-6页

作者： A. Serbezov K. Zakova A. Visioli J.A. Rossiter B. Douglas J. Hedengren Department of Chemical Engineering Rose-Hulman Institute of Technology Terre Haute IN USA Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Slovakia Department of Mechanical and Industrial Engineering University of Brescia Italy Department of Automatic Control and Systems Engineering University of Sheffield Sheffield S1 3JD UK Engineering Media LLC Kirkland WA 98034 USA Department of Chemical Engineering Brigham Young University Provo UT 84602 USA

The Technical Committees for control Education of IFAC and IEEE have started a collaborative initiative to collect, curate, and disseminate high quality freely available resources that support instruction of the first control course for undergraduate students in engineering and applied sciences programs. An initial survey with limited distribution provided 64 resources that cover all topics in a typical introductory control curriculum. This paper gives an initial glimpse of the resources collected thus far. It also suggests possible ways for categorization and dissemination.

关键词： engineering education Automatic control curriculum E-learning in control engineering Open access resources in automatic control Automatic control virtual learning environments

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Anomaly Detection Based on Principle of Justifiable Granularity and Probability Density Estimation

Anomaly Detection Based on Principle of Justifiable Granular...

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Chinese Automation Congress (CAC)

作者： Sheng Du Xian Ma Xiang Li Min Wu Weihua Cao Witold Pedrycz School of Automation China University of Geosciences Wuhan China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan China Department of Electrical and Computer Engineering University of Alberta Edmonton AB Canada Systems Research Institute Polish Academy of Sciences Warsaw Poland Department of Computer Engineering Faculty of Engineering and Natural Sciences Istinye University Sariyer/Istanbul Turkiye

Anomaly detection is essential to ensure the safety of industrial processes. This paper presents an anomaly detection approach based on the probability density estimation and principle of justifiable granularity. First, time series data are transformed into a two-dimensional information granule by the principle of justifiable granularity. Then, the test statistic is constructed, and the probability density and cumulative distribution functions of the test statistic are calculated. Next, the confidence level determines the test threshold. Finally, the time series data of a key parameter in the sintering process is used as a case study. The experimental result demonstrates that the proposed approach can detect abnormal time series data effectively, providing an accurate and effective solution for detecting time series anomalies in industrial processes.

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Current source rectifier for high-power water electrolysers: analysis and sizing

Current source rectifier for high-power water electrolysers:...

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13th International Conference on Power Electronics, Machines and Drives (PEMD 2024)

作者： Álvaro Iribarren Ernesto L. Barrios Julián Balda Marco Rivera Patrick Wheeler Alfredo Ursúa Pablo Sanchis Department of Electrical Electronic and Communications Engineering Institute of Smart Cities Public University of Navarre (UPNA) Edificio de los Pinos Campus Arrosadia s/n 31006 Pamplona Spain Department of Solar PV Systems – Solar PV BESS & Green H2 Ingeteam Power Technology S.A. – Energy 31621 Sarriguren Spain Power Electronics Machines and Control (PEMC) Research Group Department of Electrical and Electronic Engineering Faculty of Engineering University of Nottingham NG7 2RD Nottingham UK

ISBN: (数字)9781837241217

Current source rectifiers offer advantageous features that make them attractive solutions for powering grid-connected high-power electrolysers. Being a single-stage step-down rectifier topology is particularly well-suited for the low voltage, high current characteristics of high-power electrolysers. This paper investigates the impact of electrolyser electrical behaviour on the operation of current source rectifiers and provides practical guidelines for their optimal sizing, aiming to enhance power quality while minimizing overall system costs. Requirements for both grid and electrolyser sides are defined, and key considerations for sizing converter elements such as semiconductors, input LC filter, output dc inductance, and power transformer are discussed. Through optimal sizing of these components, it is demonstrated that high switching frequency IGBT-based current source rectifiers can emerge as cost-effective solutions for industrial high-power electrolyser applications.

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Fully Automated Bi-Hormonal Intraperitoneal Artificial Pancreas Using a Two-Layer PID control Scheme

Fully Automated Bi-Hormonal Intraperitoneal Artificial Pancr...

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European control Conference (ECC)

作者： Jana Langholz Karim Davari Benam Bindu Sharan Sebastien Gros Anders Lyngvi Fougner Institute of Control Systems Technical University of Hamburg Eißendorfer Straße 40 Hamburg Germany Department of Engineering Cybernetics Faculty of Information Technology and Electrical Engineering Norwegian University of Science and Technology (NTNU) O. S. Bragstads Plass 2D Trondheim Norway

Treatment of type 1 diabetes mellitus is significantly improved by using commercially available hybrid closed-loop systems to deliver insulin. These systems, also called artificial pancreas (AP), use the subcutaneous (SC) route to deliver insulin. However, meal announcements are necessary due to the slow insulin absorption from the SC tissue. Thus due to the need for human intervention, it is called “hybrid closed loop” AP. In this work, a bi-hormonal AP with intraperitoneal (IP) infusion is designed to increase the time within the range of 3.9-10.0 mmol/l and alleviate the burden of meal announcements. A two-layer controller is designed to provide safe and effective insulin and glucagon delivery. The primary layer is based on classical PID controllers for insulin and glucagon, and the supervisory layer includes four parts: (A) Zone-based control settings, (B) Extrapolation of sensor data to compensate for sensor delay in SC tissue, (C) Auto-tuning of the PID parameters in the primary layer through simulation in an animal model, and (D) Safety barriers. The controller is designed to prevent hypoglycemia after meals and during physical activity, as well as prevent postprandial hyperglycemia. The designed AP achieved 92.5% of the time within the range of 3.9-10.0 mmol/l on a simulator trained on data from animal experiments. The results indicate that this two-layer control structure with IP infusions makes it feasible to achieve a fully automated artificial pancreas without the need for meal announcements, i.e. without human intervention.

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