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SOC Balancing control Based on Multi-Agent for Multiple Energy Storage Units in MMC High power Energy Storage System

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CSEE Journal of power and Energy systems 2023年第3期11卷 1253-1261页

作者： Shijie Yan Qianxiang Shen Xiangjun Li Shuo Li Enhui Chu College of Information Science and Engineering Northeastern University Shenyang China Energy Storage and Electrical Engineering Department State Key Laboratory of Control and Operation of Renewable Energy and Storage Systems China Electric Power Research Institute Beijing China

Since high power energy transmission is required for a grid-level energy storage system, a high-power energy storage system based on modular multilevel converter (MMC) is very promising at present. However, in order to produce desired high power, an MMC-based energy storage system needs to be constructed by cascading a large number of energy storage units, which will make it difficult to balance state of charge (SOC) of these units. To solve SOC unbalancing of these units, special modeling and control methods are employed and an SOC balancing controller is designed. First, a high-power energy storage system is modeled as a multi-agent model. Then, an event-trigger control method is used to control information transmission and operation period of the energy storage agent, which further reduces the amount of communication and computation. Moreover, observers are designed to estimate battery current, which can reduce in half the amount of status information that needs to be collected. Finally, the simulation platform of the MMC-based storage system is established with MATLAB, the proposed SOC balancing control method is simulated and its validity is verified.

关键词： State of charge Observers Fluctuations Batteries Voltage control Renewable energy sources Real-time systems

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Neural Mixed Platoon controller design

Neural Mixed Platoon Controller Design

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2022 IEEE International Conference on Unmanned systems, ICUS 2022

作者： Xie, Ailing Zhou, Jianshan Tian, Daxin Duan, Xuting Sheng, Zhengguo Zhao, Dezong School of Transportation Science and Engineering Beihang Beijing100191 China Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Afety Control Beijing100191 China University of Sussex Department of Engineering and Design Richmond United Kingdom James Watt School of Engineering University of Glasgow Glasgow United Kingdom

ISBN: (数字)9781665484565

ISBN: (纸本)9781665484565

Vehicle platooning can be formulated as an optimal control problem and many solving paradigms, such as Pontryagin's maximum principle-based and dynamical programming methods, have been recently developed. However, these methods usually rely on solving a group of necessary conditions or Hamilton-Jacobi-Bellman (HJB) partial differential equations, which is hard to calculate. Besides, due to the heterogeneous dynamics of different vehicles in a mixed and complex platoon which comprises of not only connected autonomous vehicles (CAVs), but also human-driven vehicles (HDVs), it is also challenging to coordinate the behaviors of different vehicles in an unified control framework. Here we provide a Neural Mixed Platoon control (NMPC) framework, a novel control design for mixed vehicle platooning based on a neural ordinary differential equation (NODE). We first formulate an optimal control model that incorporates the heterogeneous dynamics of a leading CAV and several following HDVs. We use a neural network to parameterize a state-feedback controller and join the neural controller and the mixed platooning dynamics into the NODE solver to create a closed-loop and learnable controlled system. The resulting system can learn optimal control inputs driving the mixed platoon to evolve from a given beginning condition to the target state within a finite duration in an unsupervised manner. Finally, simulation results validate our suggested method's usefulness in terms of space headway and velocity tracking. © 2022 IEEE.

关键词： Vehicles

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control System for Electric Drives of Plate Straightening Machines

Control System for Electric Drives of Plate Straightening Ma...

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2023 International Russian Automation Conference, RusAutoCon 2023

作者： Radionov, Andrey A. Semitko, Andrey Yu. Loginov, Boris M. Khramshin, Vadim R. Filimonova, Aleksandra A. Moscow Polytechnic University Department of Automation and Control Moscow Russia South Ural State University Department of Mechatronics and Automation Chelyabinsk Russia Magnitogorsk Iron and Steel Works Magnitogorsk Russia Nosov Magnitogorsk State Technical University Power Engineering and Automated Systems Institute Magnitogorsk Russia South Ural State University Department of Electric Drive Mechatronics and Electromechanics Chelyabinsk Russia

ISBN: (纸本)9798350345551

The essential quality parameter of rolled products is the flatness along the rolled stock length. The profile defects of the rolled stock, produced at the modern plate mill 5000, frequently occur in the course of intense cooling implied by the thermomechanical rolling technology. To eliminate them, the mill lines include cold straightening machines. The authors show typical flatness defects caused by the occurrence of longitudinal, central and edge waves. Further, the paper characterizes a cold straightening machine installed at the mill 5000 and provides the parameters of electric engines of straightening rollers. The key drawback of the design algorithm for electric drives' control is setting engine constant moments regardless of the thickness and character of the defects in the rolled stock processed. This causes overloading of the electric and mechanical systems of certain rollers and unsatisfactory product quality. To eliminate the drawback, the authors developed a method for individual setting of engine moments closely coupled in the course of sheet processing. The authors present a functional block diagram for the control system to implement the method. The rationale is provided for the digital setting of moment controllers switched on the inputs of speed controllers. The authors conducted simulation modelling and comparative analysis of engine speeds and moments at the design and proposed settings. The paper provides the analysis of oscillograms obtained before and after the introduction of the control system developed. Its technical and economic feasibility was confirmed during operation. © 2023 IEEE.

关键词： control systems

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False Data Injection Attack Detection Based on Wavelet Packet Decomposition and Random Forest in Smart Grid 23

False Data Injection Attack Detection Based on Wavelet Packe...

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23rd IEEE International Conference on High Performance Computing and Communications, 7th IEEE International Conference on Data Science and systems, 19th IEEE International Conference on Smart City and 7th IEEE International Conference on Dependability in Sensor, Cloud and Big Data systems and Applications, HPCC-DSS-SmartCity-DependSys 2021

作者： Chen, Zhenyu Yuan, Shuai Wu, Longfei Guan, Zhitao Du, Xiaojiang School of Control and Computer Engineering North China Electric Power University China Brock University Department of Finance Operations and Information Systems ON Canada Fayetteville State University Department of Mathematics and Computer Science Fayetteville United States Stevens Institute of Technology Department of Electrical and Computer Engineering HobokenNJ United States

ISBN: (纸本)9781665494571

As one of the critical infrastructures, the safety and reliability of the smart grid are directly associated with the development and stability of society. However, studies have shown that the power grid is at risk when the parameters are manipulated and cyber-attacks are generated against the state estimation, i.e., under false data injection attack (FDIA). Currently, a rich body of literature has studied on the FDIA defense methods, but most of them focus on the direct current (DC) scenario. This paper proposes a novel detection model that combines the wavelet packet decomposition (WPD) technique with the random forest (RF) algorithm. The WPD is able to capture the deviation of parameters from the normal conditions, whereas the RF is developed to classify these features and effectively identify the malicious data. The proposed model is also evaluated using real-world data on IEEE 118-bus power system. The results demonstrate excellent performance on precision rate and recall rate under varying scenarios. © 2021 IEEE.

关键词： Radio frequency Training data Interference power system stability Feature extraction Data models Wavelet packets

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Application of optimal kalman filter to improve the accuracy of aircraft wing vibration parameters measurement system

Application of optimal kalman filter to improve the accuracy...

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2021 International Conference on Automatics and Energy, ICAE 2021

作者： Afonin, A.A. Sulakov, A.S. Maamo, M.S. Department of Control Systems Informatics and Power Engineering Moscow Aviation Institute National Research University Volokolamskoe shosse 4 Moscow125993 Russia

This paper discusses the advantages of constructing a vibration parameters measurement system of an aircraft wing using mems IMUs. In addition to mems IMUs, the system makes use of displacement sensor and navigation system as secondary measurements, along with the optimal Kalman filter estimation. The basic principles of system operation are described. The main algorithms of the system and its errors mathematical model are presented. The results of simulation are presented, demonstrating the expected measurement accuracy of the system as a whole. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Navigation systems

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design and Implementation of Biological Inspired Algorithm Coupled with Sliding Mode controller for Autonomous Cruise control System

Design and Implementation of Biological Inspired Algorithm C...

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

作者： Muhammad Majid Gulzar Muhammad Mughees Ahmed Adnan Shakoor Huma Tahreem Department of Control & Instrumentation Engineering Center for Renewable Energy and Power Systems King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia Department of Electrical Engineering University of Central Punjab Lahore Pakistan

In modern automobiles, driving assistance systems are extensively used for efficiency, safety and comfort. These systems are utilized for autonomous driving, cruise control, and obstacle avoidance. All of these systems consist of a large number of radars and sensors that generate rapid responses to control the speed or direction of a vehicle. The primary objective of this type of technology is to reduce accidents by reducing driver tension and enhancing travel comfort. The purpose of this study is to develop a controller for cruise control in vehicles that can precisely, rapidly, and efficiently attain the desired speed. In this study, biological inspired optimization tuned Sliding Mode controller is utilized which is more accurate and robust, and can help to adjust the parameters so that the cruise control system provides minimal error, stable results with the fewest disturbances possible. In order to demonstrate the superiority of the proposed controller, the results are subsequently compared to currently employed cutting-edge technologies for cruise control.

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Development of a Method for Providing the Breaking Capacity of High-Voltage Circuit Breakers using an Adjustable Deceleration of the Short-Circuit Clearance Time

Development of a Method for Providing the Breaking Capacity ...

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2021 International Ural Conference on Electrical power engineering, UralCon 2021

作者： Fedosov, Denis S. Bakeev, Nikita V. Department of Electric Power Plants Networks and Systems Irkutsk National Research Technical University Irkutsk Russia Design and Engineering Department LLC Stroyresurs Holding Irkutsk Russia

ISBN: (纸本)9781665419666

The article deals with the problem of ensuring the breaking capacity of high-voltage circuit breakers with an increase in the level of short-circuit currents. Instead of replacing the switches with more powerful ones, it is proposed to use an adjustable deceleration in the protection action on opening the circuit breaker in order to reduce the aperiodic current to an acceptable value at the moment of opening the main contacts. The application of electromechanical relays with intermediate saturable transformers to slow down the protection action is considered. Models of these relays were developed using MATLAB Simscape library, studies were carried out on the models, which confirmed the effectiveness of deceleration. For use in microprocessor protection terminals, a digital algorithm for slowing down the shutdown is proposed. For its application, a method has been developed for determining all parameters of the short-circuit current from its oscillogram. The algorithm has been tested on a mathematical model in MATLAB Simulink, its effectiveness has been confirmed for various initial conditions and influencing factors. The limitation of the proposed deceleration method associated with possible saturation of current transformers at the initial moment of a short-circuit is noted. It is proposed to apply the developed algorithm in conjunction with digital current transformers. © 2021 IEEE.

关键词： Electric circuit breakers

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Optimal Dispatching Considering the Participation of Flexible Resources on the Load Side in Deep Peak Regulation Market

Optimal Dispatching Considering the Participation of Flexibl...

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IEEE/IAS Industrial and Commercial power System Asia (I&CPS Asia)

作者： Yue Zhao Kai Dong Lianfu Chen Tong Cheng Qiuna Cai Qiaoyu Zhang Dispatching department Electric Power Dispatching Control Center of Guangdong Power Grid Co. Ltd Guangzhou China Dept. of Electrical Engineering State Key Laboratory of Power Systems Tsinghua University Beijing China

With the construction of new power system in China, the shortage of peak regulation resources in China's power system and the serious dilemma of abandoning wind and solar energy have become increasingly severe. It is urgent to fully mobilize the peak regulation potential of flexible resources on the load side. In view of the situation that traditional thermal power units and flexible resources on the load side participate in the market together, the day-ahead market mechanism and optimal dispatching model considering deep peak regulation are proposed. On the basis of considering the load characteristics of virtual power plant (VPP), the market mechanism based on deep peak regulation quotation is designed. It provides a mechanism basis for flexible resources on the load side to participate in the power market and provide flexible regulation services for the power grid. And the participation of VPP has effectively reduced the market cost of deep peak regulation market. The effectiveness and applicability of the model are proved by analyzing the cases of IEEE-30 bus system and IEEE-118 bus system.

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Balanced Technique Using Integrated Winding Coupled Inductor for High-power Density Two-Phase Interleaved Boost Converter

Balanced Technique Using Integrated Winding Coupled Inductor...

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Annual IEEE Conference on Applied power Electronics Conference and Exposition (APEC)

作者： Yuta Imaeda Jun Imaoka Masayoshi Yamamoto Hiroyuki Onishi Department of Electrical Engineering Nagoya University Nagoya Japan Insitute of Materials and Systems for Sustainability (IMaSS) Nagoya University Nagoya Japan Power Stage Product Design Division ROHM Co. Ltd Kyoto Japan

ISBN: (数字)9798331516116

ISBN: (纸本)9798331516123

This paper proposes a two-phase boost converter using an integrated winding coupled inductor (IWCI) that achieves high-power density and common-mode (CM) noise reduction. As an attractive feature of the proposed circuit using IWCI, two output diodes are eliminated compared to the conventional circuit using loosely coupled inductor (LCI) and symmetry-balanced technique. The CM noise of the proposed converter is effectively reduced by fulfilling the balancing conditions derived from the CM equivalent circuit. Additionally, components are inherent to the circuit, and it can be done without compromising other design parameters or requirements. To confirm the validity of the derived balancing conditions, experimental evaluations are carried out by using a 300W prototype of the proposed circuit using Gallium Nitride (GaN) devices. The experimental results demonstrated a significant common mode noise reduction effect, achieving up to 50 dBµV across a frequency range of 1 MHz to 30 MHz compared to conventional circuits.

关键词： power system measurements Noise reduction Windings Noise Prototypes power electronics Inductors Gallium nitride Integrated circuit modeling Equivalent circuits

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Traction powered multiport DC-DC converter for bidirectional EV charging application – HIL simulation results

Traction powered multiport DC-DC converter for bidirectional...

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Compatibility in power Electronics (CPE)

作者： Mykola Lukianov Enrique Romero Cadaval Oleksandr Matiushkin Ryszard Strzelecki Faculty of Electrical and Control Engineering Gdańsk University of Technology Gdańsk Poland Power Electrical and Electronic Systems R+D Group University of Extremadura Badajoz Spain Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn Estonia Faculty of Electrical Engineering Gdynia Maritime University Gdynia Poland

ISBN: (数字)9798331515171

ISBN: (纸本)9798331515188

The limited availability of public electric vehicle (EV) charging infrastructure poses a significant challenge to EV adoption in urban areas. This underscores the need for cost-effective solutions that enable charging for a large number of EVs, particularly for multiterminal charging stations. One promising approach to reducing installation costs is the implementation of a current-fed multi-active bridge multiport converter, powered by existing DC traction infrastructure. The use of a multiport converter allows for sharing electric components between several ports, reducing total number of elements required, compared to conventional systems, where each EV charger relies on a separate converter. Additionally, connection to the DC traction grid enables sharing some of the substation equipment between the traction network and the EV charger, further lowering installation costs while providing additional benefits, such as DC grid voltage stabilization and transit transport braking energy recuperation. In the case studied in the paper, the use of the converter reduced catenary voltage drops by $10 \%$ and voltage surges by $30 \%$, compared to $\pm 35 \%$ in the base scenario (without a converter).

关键词： power engineering Costs Substations Hardware-in-the-loop simulation Urban areas Voltage DC-DC power converters Electric vehicle charging Traction power supplies Surges

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