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International Conference on Applied and Theoretical Electricity (ICATE)

作者： Madalin Costin Ion Bivol Dept. of Electrical Engineering and Energy Conversion Systems “Dunarea de Jos” University of Galati Galati Romania Dept. of Automatic Control and Applied Informatics “Gheorghe Asachi” Technical University of Iasi Iasi Romania

ISBN: (数字)9798350388107

ISBN: (纸本)9798350388114

In this paper is proposed a Data Driven control (DDC) law of a Permanent Magnet Synchronous Machine (PMSM) drive as an alternative to the Model Predictive control (MPC) strategy. The DDC method is designed for the inner control structure of the PMSM drive, the outer speed loop being employed by a classical linear PI controller. Thus, the DDC is based on build up a database of the relevant quantities as electromagnetic torque, speed, voltages and current, all obtained in steady - state regime with MPC strategy, being selected for the highest efficiency values for a given pair of speed and torque. The learning process of the DDC strategy by a mutidimesional interpolation method leads to obtain high performances in both steady - state and dynamic regimes, without any additional optimal current reference command. A comparative analysis done in Matlab simulation environment of the results obtained by both MPC and DDC control laws shows the effectiveness of the last strategies. The DDC method provide a robust optimal control under energetic constraints, being more suitable then the classical MPC law that can not offers reliable results for a large area of conditions in practice.

关键词： Permanent magnet machines Interpolation Torque Stator windings Prediction algorithms Permanent magnets Temperature control Steady-state Reliability Predictive control

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High-Speed CBJT Operational Amplifier with Dual-Input-Stage Subclass Input Stage

High-Speed CBJT Operational Amplifier with Dual-Input-Stage ...

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Informatics, Electronics, and Radio engineering (PIERE), International Conference Problems of

作者： Dmitry V. Kuznetsov Alexey E. Titov Marsel A. Sergeenko Nikolay N. Prokopenko Dept. of Scientific Research dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia Dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

ISBN: (数字)9798331516321

ISBN: (纸本)9798331516338

A significant disadvantage of classical operational amplifiers with two complementary differential stages in parallel (on the inputs) is that here the slew rate has small values (50–80 V/μs). This is due to the non-linear mode of operation of the input differential stage. In this paper, a new circuit technique for slew rate enhancement in CBJT operational amplifiers of this subclass is discussed. Due to the use of special circuitry of the input differential stage, the process of recharging of the integrating correction capacitance in non-inverting and inverting operational amplifier inclusions is forced. This ultimately improves the performance of the operational amplifier in the large-signal mode. The purpose and originality of this paper is to investigate a new circuit solution of operational amplifier, in which by introducing differentiating transient correction circuits, slew rate is improved by two orders of magnitude. This does not require nanometer-scale technological processes, and the operational amplifier transistors can operate with emitter currents on the order of 100 μA. It is possible to build micro-power operational amplifier on the basis of the proposed circuit design technique, including CBJT and CCMOS transistors. Computer simulations show that for micron CBJT silicon technological processes, the SR of the proposed operational amplifier in non-inverting inclusion (at 100% feedback) increases from 80 to 10000 V/μs, i.e., more than two orders of magnitude.

关键词： Operational amplifiers Micrometers Patents Voltage Silicon Circuit synthesis Transistors Transient analysis Informatics Parasitic capacitance

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Method for Improving the Performance of Operational Amplifier with HA2700 Microchip Architecture

Method for Improving the Performance of Operational Amplifie...

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IEEE International Conference on Electrical engineering and Photonics (EExPolytech)

作者： Dmitry V. Kuznetsov Alexey E. Titov Marsel A. Sergeenko Nikolay N. Prokopenko Dept. of Scientific Research Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia Dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

ISBN: (数字)9798350388879

ISBN: (纸本)9798350388886

A circuit technique for increasing the maximum output voltage slew rate (SR) of an integrated operational amplifier (OpAmp) with the HA2700 microchip architecture based on the modernization of the input differential stage (DS) is considered. An OpAmp architecture is proposed in which the influence of parasitic capacitances of DS reference current sources and capacitances on the transistor substrate on the SR is minimized. This allows the use of micron technological processes in the fabrication of CBJT OpAmps, which are widely used to improve the radiation resistance of microchips. Computer simulation of the proposed OpAmp is performed, which shows that the SR of the new circuit differs from the SR of the well-known serial OpAmp by more than 40 times and reaches values of about 800 V/µs at the emitter current of the input transistors of the DC in the range of up to 80-100 μA. The developed OpAmp is recommended for practical use in discrete-to-analog filters on switched capacitors.

关键词： Operational amplifiers Integrated circuits Micrometers Filters Capacitors Computer architecture Voltage Capacitance Transistors Switching circuits

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Cooperative adaptive cruise control with string stability based on DMPC for vehicle platooning

Cooperative adaptive cruise control with string stability ba...

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International Conference on System Theory, control, and computing (ICSTCC)

作者： Ovidiu Pauca Mircea Lazar Constantin F. Caruntu Dept. of Automatic Control and Applied Informatics ”Gheorghe Asachi” Technical University of Iasi Iasi Romania Dept. of Electrical Engineering Eindhoven University of Technology Eindhoven The Netherlands

The cooperative adaptive cruise control (CACC) functionality received significant interest in the state-of-the-art due to its advantages in optimizing traffic flow. The model-based predictive control (MPC) strategy was used in various studies due to its advantages in improving the performance of the vehicles (reducing the travel costs, improving the quality of the travel by reducing sudden accelerations, and ensuring the stability of the platoons). Moreover, MPC solutions are built to maximize the advantages of vehicular communication by sharing predictions on states of vehicles (e.g., velocities, accelerations, trajectories). In addition, MPC is also used to compensate for the disturbances added by communications. Thus, this paper proposes a CACC strategy for a vehicle platoon. The solution is based on the distributed MPC (DMPC) strategy, and the controller is proposed in discrete time, ensuring predecessor-follower string stability for the whole platoon.

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Introducing Modelling, Analysis and control of Three-Phase Electrical Systems Using Geometric Algebra

arXiv

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arXiv 2023年

作者： Velasco, Manel Zaplana, Isiah Dòria-Cerezo, Arnau Duarte, Josué Martí, Pau The Automatic Control Department Universitat Politècnica de Catalunya Barcelona Spain The Automatic Control Department Inst. of Industrial and Control Engineering Universitat Politècnica de Catalunya Barcelona Spain The Dept. of Electrical Engineering Inst. of Industrial and Control Engineering Universitat Politècnica de Catalunya Barcelona Spain

State-of-the-art techniques for modeling, analysis and control of three-phase electrical systems belong to the real-valued multi-input/multi-output (MIMO) domain, or to the complex-valued nonlinear single-input/single-output (SISO) domain. In order to complement both domains while simplifying complexity and offering new analysis and design perspectives, this paper introduces the application of geometric algebra (GA) principles to the modeling, analysis and control of three-phase electrical systems. The key contribution for the modeling part is the identification of the transformation that allows transferring real-valued linear MIMO systems into GA-valued linear SISO representations (with independence of having a balanced or unbalanced system). Closed-loop stability analysis in the new space is addressed by using intrinsic properties of GA. In addition, a recipe for designing stabilizing and decoupling GA-valued controllers is provided. Numerical examples illustrate key developments and experiments corroborate the main findings. © 2023, CC BY.

关键词： Geometry

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Recent advances in data-driven methods for degradation modelling across applications

arXiv

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arXiv 2025年

作者： Jarosz, Anna Zagorowska, Marta Baranowski, Jerzy AGH University of Krakow Dept. of Automatic Control & Robotics al. Mickiewicza 30 Krakow30-059 Poland NTNU Department of Engineering Cybernetics Trondheim7034 Norway

Understanding degradation is crucial for ensuring the longevity and performance of materials, systems, and organisms. To illustrate the similarities across applications, this article provides a review of data-based method in materials science, engineering, and medicine. The methods analyzed in this paper include regression analysis, factor analysis, cluster analysis, Markov Chain Monte Carlo, Bayesian statistics, hidden Markov models, nonparametric Bayesian modeling of time series, supervised learning, and deep learning. The review provides an overview of degradation models, referencing books and methods, and includes detailed tables highlighting the applications and insights offered in medicine, power engineering, and material science. It also discusses the classification of methods, emphasizing statistical inference, dynamic prediction, machine learning, and hybrid modeling techniques. Overall, this review enhances understanding of degradation modelling across diverse domains. © 2025, CC BY-SA.

关键词： Hybrid materials

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The Second-Order Discrete-Analog Filter on Switched Capacitors with Three-Phase control

The Second-Order Discrete-Analog Filter on Switched Capacito...

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Wave Electronics and its Application in Information and Telecommunication Systems (WECONF)

作者： Darya Denisenko Dmitry Kuznetsov Yuri Ivanov Nikolay Butyrlagin Dept. of Scientific Research Don State Technical University Rostov-on-Don Russia Dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

ISBN: (数字)9781665465687

ISBN: (纸本)9781665465694

A discrete-analog filter of the second order with three frequency-setting capacitors has been developed, where the electronic keys are controlled by pulse sequences that do not intersect in time. It has been shown that in the proposed filter the pole frequency can be changed by changing the capacitance of the capacitor C1. In this case, the pole attenuation depends on the resistance of the resistor R5, the transmission coefficients are changed by resistors R1 or R2, and when changing one of the parameters, all other filter parameters remain unchanged. The performance of this filter is confirmed by the results of computer modeling in the Micro-Cap environment.

关键词： Band-pass filters Resistors Resistance Time-frequency analysis Capacitors Switches Attenuation Information filters Capacitance Tuning

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Averaged Models and Analysis of a Three-Phase CSI as a Dual of a Three-Phase VSI

Averaged Models and Analysis of a Three-Phase CSI as a Dual ...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Pau Boira Pujol Arnau Dòria-Cerezo Robert Griñó Inst. of Ind. and Control Engineering (IOC) Universitat Politècnica de Catalunya Barcelona Spain Dept. Electrical Engineering IOC Universitat Politècnica de Catalunya Barcelona Spain Dept. Automatic Control IOC Universitat Politècnica de Catalunya Barcelona Spain

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

The averaged model of a current source inverter (CSI) as a voltage source inverter (VSI) dual is presented in this paper. The differential equations defining the CSI are in-troduced in matrix representation for phase-to-phase and phase-to-neutral voltages and expressed using the Clarke and Park transformations. This multiple-input, multiple-output system is studied through the transfer function matrix of the linearized model, and the results are related to original CSI dynamics. Finally, open-loop simulations using Matlab/Simulink and realtime Typhoon-HIL have been carried out to validate the models.

关键词： Analytical models Voltage source inverters Tropical cyclones Transfer functions Oscilloscopes Modulation Switches

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System Identification-informed Transparent and Explainable Machine Learning with Application to Power Consumption Forecasting

System Identification-informed Transparent and Explainable M...

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2023 International Conference on Electrical, Computer, Communications and Mechatronics engineering, ICECCME 2023

作者： Wei, Hua-Liang Dept. Automatic Control and Systems Engineering The University of Sheffield Sheffield United Kingdom Energy Institute The University of Sheffield Sheffield United Kingdom Centre of Machine Intelligence The University of Sheffield Sheffield United Kingdom Centre for Signal Processing and Cpmplex Systems The University of Sheffield Sheffield United Kingdom

ISBN: (纸本)9798350322972

System identification (SysID) is the art and science of dealing with dynamic data modelling problems from systems science perspectives. It has been an active field and is still very active today, due to its wide range of applications, especially its basic principles of finding transparent, interpretable and parsimonious models for different purposes. The past decades have witnessed the explosive growth in machine learning (ML) and its applications in all areas of science and engineering. Meanwhile, there has been an increasing demand for the development of transparent, explainable and/or interpretable ML models. This paper proposes a new framework for developing System Identification-informed Transparent and Explainable MAchine Learning (SITEMAL) models. A case study, involving a real power consumption dataset, is presented to demonstrate the application of the proposed modelling framework and its performance for power consumption forecasting. © 2023 IEEE.

关键词： Electric power utilization

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An Energy-Aware Decision-Making Scheme for Mobile Robots on a Graph Map Based on Deep Reinforcement Learning

An Energy-Aware Decision-Making Scheme for Mobile Robots on ...

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International Conference on control, Automation, Robotics and Vision (ICARCV)

作者： Gabriele Gemignani Margherita Bongiorni Lorenzo Pollini Dept. of Electrical and Information Engineering DAuSy National Programme for Polytechnic of Bari Bari Italy Department of Information Engineering University of Pisa Pisa Italy University of Pisa Automatic Control University of Pisa

ISBN: (数字)9798331518493

ISBN: (纸本)9798331518509

Autonomous decision-making has always been one of the primary goals to pursue as concerns mobile robots. Researchers of this field have recently turned their attention to Deep Reinforcement Learning (DRL). This paper presents a Double Deep Q Network architecture for managing the high level decisions of a mobile robot involved in a site servicing task. We imagined a scenario where an autonomous service robot must react to alarms due to failures in its area of interest; the robot must have onboard the necessary servicing tool by resorting to a tool change station if needed, reach the area of the failure and fix it, while at the same time handling its battery status. One of the key properties, yet rarely examined, when it comes to robots' long-term independence is the energy-awareness, namely the ability of autonomously managing the charge state as a function of current and future needs. The proposed Deep Q Network training reward scheme is defined specifically to obtain an energy-aware high-level controller, by penalizing both extremely low levels of battery charge as well as unnecessary recharges. The model is numerically simulated on a graph scenario constituted of several failure and charging nodes. Results show that the trained agent always succeeds in reaching the destination without ever incurring in a complete discharge, as it promptly performs temporary stops at charging locations whenever needed.

关键词： Training Wireless communication Service robots Decision making Fault location Deep reinforcement learning Discharges (electric) Batteries Planning Mobile robots

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