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10th International Conference on Mathematical Modeling in Physical Sciences, IC-MSQUARE 2021

作者： Kinzhalieva, A.R. Protalinskiy, O.M. Khanova, A.A. Bondareva, I.O. Department of Applied informatics Astrakhan State Technical University Astrakhan Russia Department of Automated Control Systems of Thermal Processes Moscow Power Engineering Institute Moscow Russia

Modern electric grid companies are focused on minimum economically feasible costs and are aimed at improving the efficiency of financial and economic activities through the rational use of resources. The digital twin structure is proposed for the management of field service teams in the event of accidents and technological failures in an electric grid company. The digital twin includes an agent model, a system dynamics model, a geographic information system component, and modules with experiments. The description of the simulation model of management of field service teams in the event of accidents and technological failures is formalized, the input and output information on the model components is highlighted, the information is structured, and the scheme of the system dynamics model is created. Experiment designs for the digital twin of the management of field service teams in the event of accidents and technological failures in order to determine the best reliability and cost indicators are developed. The developed approach can be used to create digital twins of the management process of field service teams in the event of accidents and technological failures for various electric grid companies by selecting the parameters of simulation models according to the statistical reports by electric grid companies and connecting the appropriate GIS modules. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Human resource management

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Feedback-based Optimal Dispatch for Virtual power Plants in Active Distribution Networks 5

Feedback-based Optimal Dispatch for Virtual Power Plants in ...

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5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021

作者： Xu, Tong Zeng, Xuesong Wu, Wenchuan Energy Planning and Research Institute Southwest Electric Power Design Institute Co. Ltd. China Power Engineering Consulting Group Chengdu China Department of Electrical Engineering State Key Laboratory of Power Systems Tsinghua University Beijing China

ISBN: (纸本)9781665434256

Virtual power plants (VPPs) play an increasingly important role in power systems as they provide flexibility and efficiency for active distribution networks and serve as a great tool of energy management for the power grid penetrated with plenty of distributed energy resources (DERs) in the future. This article aims to propose a novel optimal dispatch method for VPP to realize real-time autonomous optimization. The proposed method combines the advantage of model-based method and data-driven method to provide instant optimal points trajectory based on system feedback, i.e., measurements. Firstly, the approximated mapping from control variables to state variables is established. Then a zeroth order optimization method is presented to calculate real-time command of DERs. The proposed strategy is adaptively compatible with the sudden change of the system and provide effective voltage support verified by the simulation in the unbalanced distribution networks. © 2021 IEEE

关键词： Virtual power Plants

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A Data-Driven Closed-Loop System Identification Approach Using Canonical Correlation Analysis

A Data-Driven Closed-Loop System Identification Approach Usi...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Xinyu Qiao Xianling Li Wei Zheng Mingyi Huo Yuchen Jiang Hao Luo Department of Control Science and Engineering Harbin Institute of Technology Harbin China Science and Technology on Thermal Energy and Power Laboratory Wuhan 2ndShip Design and Research Institute Wuhan P.R. China

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

In this paper, a data-driven closed-loop system identification approach using canonical correlation analysis (CCA) is proposed. Based on the subspace identification methods (SIM), an auxiliary matrix is constructed by utilizing known controller information in the structure of the closed-loop system. With the help of the projection, the equivalent relationship between past input and future output is found, and the optimal identification of system parameters is implemented by using the CCA method. The proposed method solves the biased identification problem caused by the correlation between closed-loop input and noise. The main results are tested and verified via the numerical example, and the superiority of the identification estimation results of the proposed method is compared through different methods.

关键词： Correlation Parameter estimation Noise Estimation System identification Closed loop systems

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Performance-Aware control of Modular Batteries For Fast Frequency Response

arXiv

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arXiv 2025年

作者： He, Yutong Ruan, Guangchun Zhong, Haiwang State Key Laboratory of Power System Operation and Control Department of Electrical Engineering Tsinghua University Beijing100084 China Lab for Information and Decision Systems Massachusetts Institute of Technology CambridgeMA02139 United States

Modular batteries can be aggregated to deliver frequency regulation services for power grids. Although utilizing the idle capacity of battery modules is financially attractive, it remains challenging to consider the heterogeneous module-level characteristics such as dynamic operational efficiencies and battery degradation. In addition, real-time decision making within seconds is required to enable fast frequency response. In order to address these issues, this paper proposes a performance-aware scheduling approach for battery modules to deliver fast frequency response (FFR) support. In particular, the conduction loss and switching loss of battery packs as well as converters are captured within a mix-integer quadratic constrained program (MIQCP). The cycle-based aging model identifies the aging cost of battery modules during frequent cycling by introducing the aging subgradient calculation and linearization. Case studies based on real-world battery data show that the proposed scheduling approach can effectively reduce power loss cost by nearly 28%-57% and battery aging cost by 4%-15% compared to conventional methods, which can also enhance the SoC balance. Copyright © 2025, The Authors. All rights reserved.

关键词： Battery management systems

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Quick-response protection system against electric shock in distributed generation systems

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Diagnostyka 2021年第3期22卷 59-65页

作者： Shkrabets, Fedir Plaksin, Sergej Ostapchuk, Oleksandr Kuznetsov, Valeriy Tymchenko, Irina Muntian, Antonina Department of Power Engineering Ukrainian State University of Chemical Technology Gagarina 8 Dnipro Ukraine Department of Control Systems Institute of Transport Systems and Technologies of NAS of Ukraine Pisarzhevsky str. 5 Dnipro Ukraine Department of Renewable Energy Igor Sikorsky Kyiv Polytechnic Institute Peremohy ave. 37 Kyiv03056 Ukraine Electric Power Department Railway Research Institute 4 Chlopickiego str. 50 Warsaw Poland Department of Control Systems Institute of Transport Systems and Technologies of NAS of Ukraine Pisarzhevsky str. 5 Dnipro Ukraine Foreign Language Department Dnipro National University of Railway Transport Lazariana 2 Dnipro Ukraine

The peculiarities of the operation of distributed generation systems lead to a change in the requirements for the reliability and safety of the power distribution systems in which they are integrated. To meet the increased requirements, continuous monitoring of the insulation parameters (active resistance and capacitance to ground) is often used with operating artificial non-industrial frequency operational signals introduced into the network. In the case of a sudden touch, such a system is not effective, since the response time of the protection device, which consists of the signal processing time and the operating of the actuator, is crucially important. For the used operational signals with a frequency of 100 and 200 Hz, the processing time using the Fourier transform is 10 ms for 100 Hz and 5 ms for 200 Hz. Considering that the response time of the fastest actuators (based on vacuum switches) is from 3 to 7 ms, this is a rather significant period of time. To develop an effective resolver system, the capabilities of the Matlab environment were used to determine the most successful design of an analog prototype (Butterworth, Bessel, Chebyshev and Cauer of 6th order) for an operational signal with a frequency of 200 Hz. As a result, the processing time was established, which varies widely from 3.5 to 19 ms. Taking into account the known indicators, namely the frequency and number of operational signals, a signal processing system was developed using the vector-matrix analysis method. As a result of modeling the processing characteristics of functional signals (at a sampling rate of 1 kHz), the system quick-response was 3 ms, with the possibility of its further decrease as its productiveness increases. © 2021 Polish Society of Technical Diagnostics. All rights reserved.

关键词： Actuators

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To the Issue of the Comparison of 2D and 3D Modeling of Mechanical-engineering Parts

To the Issue of the Comparison of 2D and 3D Modeling of Mech...

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International Conference on Information Technologies in engineering Education (Inforino)

作者： Anastasia V. Rudnitskaya Semeon A. Sokolov Gennady V. Fedotov Institute of Power Machinery and Mechanics National Research University “MPEI” Moscow Russia Faculty of Radio-electronic systems and complexes National Research University “MPEI” Moscow Russia Department of Applied Mathematics and Artificial Intelligence Power Engineering Design Department National Research University “MPEI” Moscow Russia

ISBN: (数字)9798350371369

ISBN: (纸本)9798350371376

The article provides a comparison of two methods for designing mechanical engineering parts using 2D and 3D modeling according to the following criteria:•speed of creating models.•responsibilities for creating models.•project editing capabilities.•information content of the model.•methods of manufacturing *** examples, assignments from the course “engineering and Computer Graphics” of the department of Modeling and design of power Installations (MDPI) of the National Research University “MPEI” were used, which the authors, students of this article, completed on the nanoCAD *** authors believe that the course program “engineering and Computer Graphics” of the department of MDPI National Researching University “MPEI” is effective and relevant; the use of 3D modeling without mastering 2D modeling is not the right method of specialist education, because the latter provides the necessary skills in engineering graphics of complex mechanical-engineering parts.

关键词： Solid modeling Three-dimensional displays Computational modeling Production Computer graphics Mathematical models Manufacturing

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Learning-Allocation Dynamics in Coalitional Games with Transferable Utility ⁎

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IFAC-PapersOnLine 2024年第30期58卷 31-36页

作者： A. Khaleghi D. Bauso T. Namerikawa Jan C. Willems Center for Systems and Control ENTEG Faculty of Science and Engineering University of Groningen Groningen 9747 AG The Netherlands Jan C. Willems Center for Systems and Control ENTEG Faculty of Science and Engineering University of Groningen Groningen 9747 AG The Netherlands and also Dipartimento di Ingegneria Università di Palermo Palermo 90128 Italy Department of System Design Engineering Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama Kanagawa 223-8522 Japan

We consider a set of players who have to make a joint decision under uncertainty and learn via gradient dynamics how to reach the maximal profit for the coalition while the game is running and the revenue gets allocated to the players. The main result is the convergence of the intertwined learning-allocation dynamics to a stable solution which yields the maximal profit for the coalition and a stable allocation in the core of the asymptotic game.

关键词： Coalitional games game theory gradient dynamics wind energy aggregation

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Reliability-Aware Vehicular Communication and Mobility Optimization: Joint Data Transmission Scheduling and Motion Planning

Reliability-Aware Vehicular Communication and Mobility Optim...

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2022 IEEE International Conference on Unmanned systems, ICUS 2022

作者： Xu, Gangchuan Zhou, Jianshan Tian, Daxin Ren, Chenghao Duan, Xuting Sheng, Zhengguo School of Transportation Science and Engineering Beihang Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control Beijing100191 China Zibo Vaucrefly Intelligent Technology Co. Ltd. Zibo255000 China University of Sussex Department of Engineering and Design Richmond United Kingdom

ISBN: (数字)9781665484565

ISBN: (纸本)9781665484565

Motion planning and vehicular communication are two enabling technologies for the practical realization of connected autonomous vehicles (CAVs), However, few studies have recently provided an effective systematic design from a joint optimization perspective. In our research, we present an optimization system that joins the reliability-oriented cellular vehicle-to-infrastructure communication (V2I) and the multi-objective motion planning into a model predictive control (MPC) model. We propose a stochastic model characterizing the V2I communication reliability and an optimization cost function for the motion planning of a CAV regarding control energy consumption, mobility efficiency, and smoothness. The system model is to maximize the V2I communication reliability meanwhile minimizing the motion cost by jointly optimizing the velocity and data transmission of the vehicle. Using an E-constraint method, we transform the multi-objective optimization model into a tractable problem and propose a numerical optimization algorithm to solve it. Simulation results demonstrate the validity of our joint optimization method for reliability-guaranteed vehicular communication and optimal motion planning and its performance outperforms several baselines. © 2022 IEEE.

关键词： Motion planning

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Particle Swarm Optimization Tuned PID control of Hybrid Renewable Energy Based Multi-Area power System

Particle Swarm Optimization Tuned PID Control of Hybrid Rene...

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IEEE International Symposium on Dependable, Autonomic and Secure Computing (DASC)

作者： Muhammad Majid Gulzar Muhammad Shahab Adnan Shakoor Department of Control & Instrumentation Engineering Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS) King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia

The hybrid power system combines renewable and conventional power plants, resulting in certain power quality issues such as longer settling times and increased transient contents. One of the most significant problems with such a hybrid system is frequency variations, which can affect the overall efficiency and reliability of the energy system. To address this concern, the Load Frequency controller (LFC) is used to sustain the system frequency within safe limits and ensure the efficient and reliable operation of the electric grid. The primary function of governing the oscillation of load is to adjust the power delivery and balance the load demand of the system to maintain a specific range of power output. This study tries to determine the best control approach for efficiently regulating system frequency and upholding a power balance in the presence of renewable energy sources. In this work, controllers such as Proportional Integral Derivative (PID), Genetic algorithm-PID (GA-PID), and Particle Swarm Optimization-PID (PSO-PID) are examined and studied to settle the load oscillation issue arising in a two-area energy generation system. Comparison of results obtained with the controllers are presented and summarized based on their settling time (T s ), maximum overshoot (%OS) oscillation, and steady-state error (SSE).

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Dc Leakage Current in Isolated Grid-Connected dc Nanogrid - Origins and Elimination Methods

Dc Leakage Current in Isolated Grid-Connected dc Nanogrid - ...

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Compatibility in power Electronics (CPE)

作者： Mohammadreza Azizi Oleksandr Husev Oleksandr Veligorskyi Marek Turzvński Ryszard Strzelecki Department of Radiotechnic and Embedded Systems Chernihiv Polytechnic National University Chernihiv Ukraine Department of Electric Electronic and Automation Engineering University of Extremadura Badajoz Spain Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn Estonia Faculty of Electrical and Control Engineering Gdansk University of Technology Gdansk Poland

ISBN: (数字)9798350318265

ISBN: (纸本)9798350318272

The LV dc system is a relatively new trend in the distribution sector, which seems to grow widely in the near future due to its promising advantages. In this context, LV dc protection and grounding are challenging issues. Although the galvanically isolated connection mode of dc nanogrid to the ac grid has high reliability, the leakage current can still be injected into the ac grid through the interwinding capacitors and the insulation resistance between the primary and secondary windings of the transformer. The way of grounding the dc nanogrid can also be a determining factor in the leakage current and its dc components. This study deals with the leakage current in the galvanically isolated dc nanogrid. Then, it examines the dc leakage current and its relationship with the dc nanogrid grounding and finally provides solutions to remove the dc components in the leakage current.

关键词： Resistance Insulation Grounding Simulation Windings Capacitors Leakage currents

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