Article
Engineering, Electrical & Electronic
Ila Rai, R. Anand, Abderezak Lashab, Josep M. Guerrero
Summary: This paper proposes a robust controller design approach based on H-infinity control norms to address the nonlinearity added by CPL in DC microgrid. Necessary and sufficient conditions for transient performance and stability are obtained through Linear Matrix Inequality (LMI), with the LMI equation solved to maximize the estimated domain of stability.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Automation & Control Systems
Xiaoli Chen, Songlin Hu, Jianrui Li, Chunyang Hu, Xiangpeng Xie, Jing Zhang
Summary: This article investigates the impact of a new type of time-constrained DoS attack model on a stochastic control system and proposes corresponding controller synthesis and stability criteria. The validity of the theoretical results is verified using an aircraft system as an example.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Engineering, Electrical & Electronic
Siamak Derakhshan, Marjan Shafiee-Rad, Qobad Shafiee, Mohammad Reza Jahed-Motlagh, Subham Sahoo, Frede Blaabjerg
Summary: This article presents an optimal decentralized robust H-infinity control system for the voltage control problem of autonomous uncertain dc microgrids, which is validated through simulations and experimental studies for its effectiveness and robust performance.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Automation & Control Systems
Dingchao Ren, Junlin Xiong, Daniel W. C. Ho
Summary: This paper investigates the design of static output feedback (SOF) NI controllers with H-infinity performance and proposes an iterative LMI-based algorithm for synthesis.
Article
Mathematics, Applied
Valiollah Ghaffari, Saleh Mobayen
Summary: This paper presents a robust H-infinity integral control scheme for a class of nonlinear uncertain systems, achieving disturbance rejection and set-point regulation through state-feedback design and utilizing LMI-based controller synthesis. The controller gains are numerically calculated by solving LMIs, and the method's efficiency is demonstrated in a numerical example by comparing disturbance attenuations and transient performance in none-zero regulation scenarios.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2022)
Article
Energy & Fuels
Subrat Kumar Pradhan, Dushmanta Kumar Das
Summary: This work presents a control approach based on sliding-mode-control (SMC) to design robust H-infinity state feedback controllers for load frequency regulation of delayed interconnected power system (IPS) with parametric uncertainties. Two SMC laws are proposed considering both state feedback control strategy and delayed feedback control strategy. The proposed control laws aim to improve the stability and disturbance rejection performance of delayed IPS, while stabilization criteria in the form of linear matrix inequality are derived by choosing a Lyapunov-Krasovskii functional. An artificial time-delay is incorporated in the control law design of the delayed feedback control structure to enhance the controller performance.
PROTECTION AND CONTROL OF MODERN POWER SYSTEMS
(2023)
Article
Mathematics, Applied
Junkang Tian, Zerong Ren, Yanmin Liu
Summary: This paper studies the stability analysis of systems with an interval time-varying delay. New integral inequalities are introduced and less conservative stability criteria are proposed based on these inequalities. The advantages of these criteria are demonstrated through numerical examples.
Article
Automation & Control Systems
Jason J. R. Liu, James Lam, Xiaochen Xie, Zhan Shu
Summary: This article extends lead, lag, and lead-lag compensators to multi-input-multi-output systems for the first time, while also providing algorithmic design methods that are more systematic compared to traditional approaches.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Mathematics
Khac Huan Su, Kwankyun Byeon, Wonhee Kim, Youngwoo Lee
Summary: This study presents an LPV H-∞ control method with an augmented nonlinear observer (ANOB) to improve the position and yaw tracking errors for Sawyer motors. The proposed method utilizes forces and torque modulation, an ANOB, and a Lyapunov-based current controller with an LPV H-∞ state feedback controller to ensure stability of the tracking error dynamics. The ANOB estimates all state variables using only position feedback. The study evaluates the effectiveness of the method through simulation results and compares it with the traditional PID control method.
Article
Energy & Fuels
Wei Hu, Yu Shen, Zhichun Yang, Huaidong Min
Summary: In this paper, a multi-objective optimization control design approach based on the LMI solution is proposed for the application of smart transformers. The approach is able to achieve excellent performances and alleviate the burden of designers.
Article
Computer Science, Artificial Intelligence
Mouquan Shen, Yongsheng Ma, Ju H. Park, Qing-Guo Wang
Summary: This article focuses on the fuzzy fault-tolerant tracking control of Markov jump systems with unknown mismatched faults. Proportional-integral observers are established to reconstruct the faults and system states, and the gains are solved using a linear matrix inequality framework. A backstepping-based fuzzy fault-tolerant tracking control scheme is proposed to ensure uniformly ultimately bounded closed-loop system with rebuilt faults and states obtained from an iterative estimation algorithm. Simulations show the effectiveness of the proposed methods.
IEEE TRANSACTIONS ON FUZZY SYSTEMS
(2022)
Article
Engineering, Civil
Kaushik Halder, Lee Gillam, Shilp Dixit, Alexandros Mouzakitis, Saber Fallah
Summary: This paper proposes a discrete time distributed state feedback controller design strategy for a homogenous vehicle platoon system with undirected network topology. The system is resilient to external disturbances and random consecutive network packet drop. The control strategy ensures internal stability and performance by incorporating a distributed state feedback controller design and satisfying bounded H-infinity norm using Lyapunov-Krasovskii based LMI approach. The effects of packet drops on internal stability and variation of stability margin for different network topologies are studied.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Computer Science, Information Systems
Valiollah Ghaffari, Saleh Mobayen, Sami Ud Din, Andrzej Bartoszewicz, Amin Torabi Jahromi
Summary: This article addresses a robust H-infinity fault tolerant control law for uncertain dynamical systems. By utilizing a state-feedback controller law, disturbance suppression is achieved, and a linear matrix inequality based performance condition ensures system stability and control effectiveness. Numerical simulations demonstrate the efficiency of this method in dynamic uncertain systems.
Article
Automation & Control Systems
Wu-Hua Chen, Hao Sun, Xiaomei Lu
Summary: This paper investigates the variable gain impulsive observer design problem for Lipschitz nonlinear systems. The piecewise linear interpolation method is used to construct the variable gain function and a Lyapunov-based condition for establishing exponential input-to-state stability (EISS) property of the observation error dynamics is presented. The effectiveness of the proposed design technique is illustrated through comparisons with existing methods.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2022)
Article
Computer Science, Information Systems
Wei Liu, Xuejie Que, Yanyan Wang
Summary: This paper focuses on the H infinity observer-based control problem for discrete-time singularly perturbed systems (DTSPSs) with nonlinear disturbances. The main contributions of this paper include the construction of a proper observer, the proposal of a sufficient condition for the asymptotic stability of the observer error system, and the design of an observer-based feedback controller based on the input-to-state stability property.
Article
Automation & Control Systems
Jitendra Kumar Goyal, Shubham Aggarwal, Sandip Ghosh, Shyam Kamal, Pawel Dworak
Summary: This paper presents a robust L-2-based Static Output Feedback (SOF) controller design for linear continuous-time polytopic systems subject to actuator saturation. New sufficient LMI conditions are derived using parameter-dependent Lyapunov function. The research considers L-2 performance and actuator saturation constraint to develop a considerably complete problem framework.
INTERNATIONAL JOURNAL OF CONTROL
(2022)
Article
Engineering, Electrical & Electronic
Debottam Mukherjee, Samrat Chakraborty, Sandip Ghosh
Summary: With the advancement in smart grid technology, real-time monitoring of the grid has become crucial. This paper proposes a deep learning architecture that can detect the exact locations of data intrusions in real-time, catering to both structured and unstructured false data injection attacks. The architecture is model-free and emphasizes the consistency and co-occurrence dependency of potential attacks, making it a multilabel classifier.
ELECTRICAL ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Debottam Mukherjee, Samrat Chakraborty, Sandip Ghosh
Summary: The modern power sector requires grid observability for ideal functioning, with operators incorporating state estimation solutions based on a priori measurements to deduce the grid's operating states. This study compares various machine learning models for accurate forecasting of operating states in normal and contingency scenarios.
ELECTRICAL ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Sudipta Chakraborty, Jiwanjot Singh, Asim K. Naskar, Sandip Ghosh
Summary: This article introduces a control method for chemical reactors, which achieves good tracking and load-disturbance rejection by adjusting the controller parameters and set-point weights. Explicit controller parameters for different classes of integrating processes are obtained using gain-margin, phase-margin, and inverse plant model.
IETE JOURNAL OF RESEARCH
(2022)
Article
Automation & Control Systems
Sandeep Kumar Soni, Shyam Kamal, Sandip Ghosh, Sorin Olaru
Summary: This paper addresses the finite-time stabilization problem of nonlinear polytopic systems and proposes sufficient conditions through a robust control Lyapunov function for the existence of a continuous time-invariant finite-time stabilizing state feedback controller. It is also shown that the obtained sufficient condition is necessary if there exists a state feedback controller such that the closed-loop system has a robust Lyapunov function for all possible uncertainties. Finally, a numerical example is presented to verify the efficacy of the proposed control design.
IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
(2022)
Article
Automation & Control Systems
Jitendra Kumar Jain, Weidong Zhang, Sandip Ghosh
Summary: This paper presents a study on robust adaptive output feedback stabilization for a class of nonlinear systems. The proposed method is able to handle parametric uncertainties and disturbances, including both matched and unmatched disturbances. By introducing a novel lemma and tuning functions, the difficulties associated with nonlinear gain functions and unknown parameters are addressed. Simulation results demonstrate the effectiveness of the proposed robust controller.
INTERNATIONAL JOURNAL OF CONTROL
(2023)
Article
Engineering, Electrical & Electronic
Shyam Kamal, Aishwarya Bharti, Xinghuo Yu, Durgesh Kumar, Sharat Chandra Mahto, Sandip Ghosh, X. Xiong
Summary: This paper proposes an output feedback based twisting algorithm for uncertain systems with relative degree two, which ensures practical asymptotic convergence to the origin based on the information of output and its delayed version. The convergence of the proposed algorithm is proved by a continuous, weighted homogeneous, and strict Lyapunov function.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2022)
Article
Automation & Control Systems
Jitendra Kumar Goyal, Shubham Aggarwal, Ankit Sachan, Pradosh Ranjan Sahoo, Sandip Ghosh, Shyam Kamal
Summary: This paper presents the design of output feedback controllers for discrete-time linear systems. New sufficient LMI conditions are derived by decomposing an auxiliary matrix, which facilitates the linearization of nonlinear terms and leads to less conservative results. The proposed static output feedback criteria are also used for designing dynamic output feedback controllers, and a comparative study is conducted. Finally, a DT static output feedback H-infinity controller is designed for a quarter-car suspension system, and simulation results demonstrate the effectiveness of the proposed design method.
ASIAN JOURNAL OF CONTROL
(2023)
Article
Automation & Control Systems
Kallol Chatterjee, Vijay K. Singh, Parijat Prasun, Shyam Kamal, Sandip Ghosh, Thach N. Dinh
Summary: This article proposes a fixed-time event-triggered control for a networked system under denial-of-service (DoS) attacks. The fixed-time input-to-state stability (ISS) analysis is conducted without DoS, and then the fixed-time ISS under DoS is examined with the same control law. Sufficient conditions for the frequency and duration of DoS attacks are derived to ensure the fixed-time ISS of the closed-loop system. A numerical example is provided to demonstrate the effectiveness of the proposed methodology.
EUROPEAN JOURNAL OF CONTROL
(2023)
Article
Automation & Control Systems
Haritha Mittapally, Sandip Ghosh, Shyam Kamal
Summary: Event-triggered communication is used in networked control system to reduce data transfer rate. This work employs event triggering in both feedback and forward channels, while maintaining closed-loop control performance through predictive control. The predictive controller not only handles information loss from event triggering, but also delays and packet dropouts caused by the communication network. A comparison is presented to show that using event triggering in both channels yields comparable performance.
EUROPEAN JOURNAL OF CONTROL
(2023)
Article
Engineering, Electrical & Electronic
Pritam Paral, Amitava Chatterjee, Anjan Rakshit, Sankar K. Pal
Summary: This article introduces a new algorithm for human leg localization using ultrasonic sensors in human-robot coexisting environments, utilizing advanced techniques and metaheuristic search along with chaos enhanced algorithms to enhance performance.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Proceedings Paper
Automation & Control Systems
Rupak Datta, Rajeeb Dey, Nabanita Adhikari
Summary: This paper focuses on the dissipativity analysis of a single flexible joint robotic system using the Takagi-Sugeno fuzzy modelling technique. The objective is to design a delayed state feedback controller to achieve asymptotic stability of the system under a specified dissipativity condition. The condition is derived in terms of a linear matrix inequality framework by constructing an appropriate Lyapunov Krasovskii functional and using a higher order polynomial based integral inequality to estimate its derivative. Numerical simulation results are provided to demonstrate the effectiveness of the proposed theoretical method.
Article
Mathematics, Applied
Rupak Datta, Ramasamy Saravanakumar, Rajeeb Dey, Baby Bhattacharya
Summary: This paper addresses the problem of delay-range-dependent stability analysis for continuous time Takagi-Sugeno fuzzy time-delay systems. An improved stability criterion is proposed by constructing an appropriate Lyapunov-Krasovskii functional and utilizing relaxed integral inequality. The efficacy of the obtained stability conditions is validated through the solution of three numerical examples.
Proceedings Paper
Automation & Control Systems
Muhammad Usman Asad, Jason Gu, Umar Farooq, Rajeeb Dey, Valentina E. Balas, Ghulam Abbas
Summary: This paper describes the design and implementation steps of a fuzzy logic-based controller for autonomous navigation of an educational robot called Qbot2. The robot is equipped with ultrasonic sensors and DC motors, and the controller generates obstacle avoidance commands in real-time. The controller's performance is validated through experiments. The designed platform can be used for real-time implementation of various fuzzy inference systems, serving as a laboratory work for testing soft computing algorithms on mobile robotics.
Proceedings Paper
Automation & Control Systems
Muhammad Usman Asad, Jason Gu, Umar Farooq, Rajeeb Dey, Valentina E. Balas, Ghulam Abbas
Summary: This paper presents the design of a composite state convergence controller for teleoperating a multi-degrees-of-freedom manipulator, and validates the proposal through MATLAB simulations.
Article
Engineering, Electrical & Electronic
Wandry R. Faria, Gregorio Munoz-Delgado, Javier Contreras, Benvindo R. Pereira Jr
Summary: This paper proposes a new bilevel mathematical model for competitive electricity markets, taking into account the participation of distribution systems operators. A new pricing method is introduced as an alternative to the inaccessible dual variables of the transmission system.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Chao Zhang, Liwei Zhang, Dong Wang, Kaiyuan Lu
Summary: The load disturbance rejection ability of electrical machine systems is crucial in many applications. Existing studies mainly focus on improving disturbance observers, but the speed response control during the transient also plays a significant role. This paper proposes a sliding mode disturbance observer-based load disturbance rejection control with an adaptive filter and a Smith predictor-based speed filter delay compensator to enhance the transient speed response.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Arif Hussain, Arif Mehdi, Chul-Hwan Kim
Summary: The proposed scheme in this research paper is a communication-less islanding detection system based on recurrent neural network (RNN) for hybrid distributed generator (DG) systems. The scheme demonstrates good performance in feature extraction, feature selection, and islanding detection, and it also performs effectively in noisy environments.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Zonghui Sun, Xizheng Guo, Shinan Wang, Xiaojie You
Summary: This paper presents a status pre-matching method (SPM) that eliminates the iterative calculations for resistance switch model, and simulates all operation modes of PECs through a more convenient approach. Furthermore, a FPGA implementation scheme is proposed to fully utilize the multiplier units of FPGA.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Rui Zhou, Shuheng Chen, Yang Han, Qunying Liu, Zhe Chen, Weihao Hu
Summary: In power system scheduling with variable renewable energy sources, considering both spatial and temporal correlations is a challenging task due to the complex intertwining of spatiotemporal characteristics and computational complexity caused by high dimensionality. This paper proposes a novel probabilistic spatiotemporal scenario generation (PSTSG) method that generates probabilistic scenarios accounting for spatial and temporal correlations simultaneously. The method incorporates Latin hypercube sampling, copula-importance sampling theory, and probability-based scenario reduction technique to efficiently capture the spatial and temporal correlation in the dynamic optimal power flow problem. Numerical simulations demonstrate the superiority of the proposed approach in terms of computational efficiency and accuracy compared to existing methods.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Juan Manuel Mauricio, J. Carlos Olives-Camps, Jose Maria Maza-Ortega, Antonio Gomez-Exposito
Summary: This paper proposes a simplified thermal model of VSC, which can produce accurate results at a low computational cost. The model consists of a simple first-order thermal dynamics system and two quadratic equations to model power losses. A methodology is also provided to derive the model parameters from manufacturer data.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Jae-Kyeong Kim, Kyeon Hur
Summary: This paper investigates the relationship between the accuracy of finite difference-based trajectory sensitivity (FDTS) analysis and the perturbation size in non-smooth systems. The study reveals that the approximation accuracy is significantly influenced by the perturbation size, and linear approximation is the most suitable method for practical applications.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yuan Si, Amjad Anvari-Moghaddam
Summary: This paper investigates the impact of geomagnetic disturbances on small signal stability in power systems and proposes the installation of blocking devices to mitigate the negative effects. Quantitative evaluation reveals that intense geomagnetic disturbances significantly increase the risk of small signal instability. Optimal placement of blocking devices based on sensitivity scenarios results in a significant reduction in the risk index compared to constant and varying induced geoelectric fields scenarios.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xuejian Zhang, Wenxin Kong, Nian Yu, Huang Chen, Tianyang Li, Enci Wang
Summary: The intensity estimation of geomagnetically induced currents (GICs) varies depending on the method used. The estimation using field magnetotelluric (MT) data provides the highest accuracy, followed by the estimation using 3D conductivity models and the estimation using a 1D conductivity model. The GICs in the North China 1000-kV power grid have reached a very high-risk level, with C3 and C4 having a significant impact on the geoelectric field and GICs.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yue Pan, Shunjiang Lin, Weikun Liang, Xiangyong Feng, Xuan Sheng, Mingbo Liu
Summary: This paper introduces the concept and model of offshore-onshore regional integrated energy system, and proposes a stochastic optimal dispatch model and an improved state-space approximate dynamic programming algorithm to solve the model. The case study demonstrates the effectiveness and high efficiency of the proposed method in improving economic and environmental benefits.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Mohammad Eydi, Reza Ghazi, Majid Oloomi Buygi
Summary: Proportional current sharing, voltage restoration, and SOCs balancing in DC microgrid control algorithms are the leading challenges. This paper proposes a novel communication-less control method using a capacitor and a DC/DC converter to stabilize the system and restore the DC bus voltage. The method includes injecting an AC signal into the DC bus, setting the current of energy storage units based on frequency and SOC, and incorporating droop control for system stability. Stability analysis and simulation results validate the effectiveness of the proposed method.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xiangjian Meng, Xinyu Shi, Weiqi Wang, Yumin Zhang, Feng Gao
Summary: With the increasing penetration of photovoltaic power generation, regional power forecasting becomes critical for stable and economical operation of power systems. This paper proposes a minute-level regional PV power forecasting scheme using selected reference PV plants. The challenges include the lack of complete historical power data and the heavy computation burden. The proposed method incorporates a novel reference PV plant selection method and a flexible approach to decrease the accumulated error of rolling forecasting.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Huabo Shi, Yuhong Wang, Xinwei Sun, Gang Chen, Lijie Ding, Pengyu Pan, Qi Zeng
Summary: This article investigates the dynamic stability characteristics of the full size converter variable speed pumped storage unit and proposes improvements for the control strategy. The research is important for ensuring the safe and efficient operation of the unit.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Firmansyah Nur Budiman, Makbul A. M. Ramli, Houssem R. E. H. Bouchekara, Ahmad H. Milyani
Summary: This paper proposes an optimal harmonic power flow framework for the daily scheduling of a grid-connected microgrid, which addresses power quality issues and ensures effective control through demand side management.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Cong Zeng, Ziyu Chen, Jizhong Zhu, Fellew Ieee
Summary: This paper introduces a distributed solution method for the multi-objective OPF problem, using a coevolutionary multi-objective evolutionary algorithm and the idea of decomposition. The problem is alleviated by decomposing decision variables and objective functions, and a new distributed fitness evaluation method is proposed. The experimental results demonstrate the effectiveness of the method and its excellence in large-scale systems.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
