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Journal articles on the topic 'DISTRIBUTED CONTROLLERS SYSTEM'

Author: Grafiati

Published: 11 September 2023

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1

Zaytsev, Sergej Vladilenovich. "REALIZATION OF ADAPTIVE REGULATORS IN DISTRIBUTION CONTROL SYSTEMS." Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics 2020, no. 3 (2020): 99–104. http://dx.doi.org/10.24143/2072-9502-2020-3-99-104.

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The article considers the problems of synthesis of different distributed controllers and methods for implementing the adaptation the system of these controllers. Each type of distributed controllers has its own parameters in the transfer functions. The parameters of the controller can be obtained after studying and identification of the distributed control object. In the transfer functions there are two parameters that can be changed in order to achieve the high-quality transient processes in the control system. These parameters are: weight coefficient of the distributed link ni and the propor

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2

Nakayama, Ryoichi, Hitoshi Iida, Hisashi Hozumi, Satoshi Okada, Hideharu Okano, and Tatsuo Miyazawa. "Distributed Control System for Six-Legged Walking Robot." Journal of Robotics and Mechatronics 5, no. 6 (1993): 570–74. http://dx.doi.org/10.20965/jrm.1993.p0570.

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In this paper, describe a walking robot system which has been developed based on the assumption that it will be used to perform visual inspections. The robot is designed to be static walking and cableless. The six legs are disposed symmetrically around the center of the robot's body, and each modular leg comprises a number of links. The distributed control concept is adopted for the control system, which consists of a main controllers a sub-controller, and local controllers. The local controllers and driver circuits for the DC servo motors are mounted on the individual leg modules, and special

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Bouzid, Allal El Moubarek, Mohamed Zerrougui, Seifeddine Ben Elghali, Karim Beddiar, and Mohamed Benbouzid. "Robust Resonant Controllers for Distributed Energy Resources in Microgrids." Applied Sciences 10, no. 24 (2020): 8905. http://dx.doi.org/10.3390/app10248905.

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Motivated by the problem of different types and variations of load in micro-grids, this paper presents robust proportional-resonant controllers with a harmonics compensator based on the internal model principle. These controllers ensure robust tracking of sinusoidal reference signals in distributed energy resource systems subject to load variation with respect to sinusoidal disturbances. The distributed generation resource and the resonant controllers are described using the augmented state system approach, allowing the application of the state feedback technique. In order to minimize the trac

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Jahn, Uwe, Carsten Wolff, and Peter Schulz. "Concepts of a Modular System Architecture for Distributed Robotic Systems." Computers 8, no. 1 (2019): 25. http://dx.doi.org/10.3390/computers8010025.

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Modern robots often use more than one processing unit to solve the requirements in robotics. Robots are frequently designed in a modular manner to fulfill the possibility to be extended for future tasks. The use of multiple processing units leads to a distributed system within one single robot. Therefore, the system architecture is even more important than in single-computer robots. The presented concept of a modular and distributed system architecture was designed for robotic systems. The architecture is based on the Operator–Controller Module (OCM). This article describes the adaption of the

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Cho, Yon Sang, Sung Jae Jun, and Heung Sik Park. "AGV System with Dual Motor Drive by Distributed Control." Key Engineering Materials 297-300 (November 2005): 2297–302. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.2297.

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With the recent progress in flexible manufacturing systems (FMS) in industry, increasing attention has been given to Automatic Guided Vehicle (AGV) systems. An AGV is a self-powered unit for transporting materials between stations without needing to be controlled by an operator. Such a system has several sensors to recognize the external state, and it is designed to travel between stations without external assistance. To manage each device quickly and independently it requires a distributed controller with a main computer as the host, as well as a number of micro-controllers. In this study, an

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Xu, Ning, Runfeng Chen, Yuchong Huang, Yiting Chen, and Jie Li. "Synthesis of Asynchronous Control and Synchronization for Multi-Robot System under Finite Horizon Temporal Task." Journal of Physics: Conference Series 2213, no. 1 (2022): 012030. http://dx.doi.org/10.1088/1742-6596/2213/1/012030.

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Abstract This paper proposes a novel control synthesis method for cooperative multi-robot systems to fulfil a global mission given as linear temporal logic on finite traces (LTLf). Transition systems are used as the form of distributed controllers, such that the robots are driven to act asynchronously and synchronize on shared actions for necessary local coordination. An automated control synthesis method is proposed, which generates provably correct distributed controllers by two steps: (i) synthesizing satisfiable global controllers for the parallel composition of the uncontrolled system, su

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Xu, Ning, Ting Peng, Dawei Liu, and Jie Li. "Temporal Logic Control Synthesis for Distributed Multi-Agent Cooperative Tasking." Journal of Physics: Conference Series 2216, no. 1 (2022): 012061. http://dx.doi.org/10.1088/1742-6596/2216/1/012061.

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Abstract In this work, we present a novel control synthesis method for cooperative multi-agent systems to fulfill a global mission given as linear temporal logic on finite traces (LTLf). The proposed method first synthesizes satisfiable global controllers for uncontrolled system, such that the global specification is met; and then, searches for a decomposable global controller among them over a maximum synchronization scheme; finally, further refining the synchronization scheme to obtain decomposed distributed controllers. To search for a decomposable global controller among the satisfiable on

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Badotra, Sumit, Sarvesh Tanwar, Salil Bharany, et al. "A DDoS Vulnerability Analysis System against Distributed SDN Controllers in a Cloud Computing Environment." Electronics 11, no. 19 (2022): 3120. http://dx.doi.org/10.3390/electronics11193120.

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Software-Defined Networking (SDN) is now a well-established approach in 5G, Internet of Things (IoT) and Cloud Computing. The primary idea behind its immense popularity is the separation of its underlying intelligence from the data-carrying components like routers and switches. The intelligence of the SDN-based networks lies in the central point, popularly known as the SDN controller. It is the central control hub of the SDN-based network, which has full privileges and a global view over the entire network. Providing security to SDN controllers is one such important task. Whenever one wishes t

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Pan, J. Z., and R. V. Patel. "Reconfigurable distributed real-time processing for multi-robot control: Design, implementation and experimentation." Robotica 22, no. 6 (2004): 661–79. http://dx.doi.org/10.1017/s0263574704000360.

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Sophisticated robotic applications require systems to be reconfigurable at the system level. Aiming at this requirement, this paper presents the design and implementation of a software architecture for a reconfigurable real-time multi-processing system for multi-robot control. The system is partitioned into loosely coupled function units and the data modules manipulated by the function units. Modularized and unified structures of the sub-controllers and controller processes are designed and constructed. All the controller processes run autonomously and intra-sub-controller information exchange

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Elgammal, Adel, and Tagore Ramlal. "Adaptive Voltage Regulation Control Strategy in a Stand-Alone Islanded DC Microgrid based on distributed Wind / Photovoltaic / Diesel / Energy Storage Hybrid Energy Conversion System." European Journal of Electrical Engineering and Computer Science 5, no. 4 (2021): 26–33. http://dx.doi.org/10.24018/ejece.2021.5.4.343.

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An adaptive approach for optimal tuning of a SMC for an automated voltage regulator system is displayed in this study. The approach is centered on hybrid of the GA and MOPSA. In addition, unique objective functions for the controller's parameter optimization are suggested. The performance of the resulting perfect sliding mode controller is confirmed by comparing it to controllers adjusted using various techniques that have been published in the literature. The simulation outcomes indicate that controllers tuned with the projected MOPSO and GA algorithms outperform controllers tuned with existi

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Yu, Haisheng, Keqiu Li, and Heng Qi. "An Active Controller Selection Scheme for Minimizing Packet-In Processing Latency in SDN." Security and Communication Networks 2019 (October 13, 2019): 1–11. http://dx.doi.org/10.1155/2019/1949343.

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In software-defined network, the use of distributed controllers to control forwarding devices has been proposed to solve the issues of scalability and load balance. However, the forwarding devices are statically assigned to the controllers in these distributed systems, which can overload some controllers while others are underutilized. In this paper, we propose an architecture named ASLB (active controller selection load balance), which proactively selects appropriate controllers for load balancing and minimize packet processing delays. We also present a novel active controller selection algor

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Hulewicz, Arkadiusz, Zbigniew Krawiecki, and Krzysztof Dziarski. "Distributed control system DCS using a PLC controller." ITM Web of Conferences 28 (2019): 01041. http://dx.doi.org/10.1051/itmconf/20192801041.

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The article presents The unconventional use of PLC controllers in a distributed control system DCS were presented in this article. The functionality, requirements and the costs of installation and operation of commercial DCS systems and those built on the basis of PLC logic controllers were analyzed. The features, the architecture and the structure of DCS systems based on PLC controllers have been described in details. The particular attention was paid to the allocation of the individual system components to the appropriate layers contained in their structure.

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Shi, Linda Z., and Mohamed B. Trabia. "Comparison of Distributed PD-like and Importancebased Fuzzy Logic Controllers for a Two-link Rigid-flexible Manipulator." Journal of Vibration and Control 11, no. 6 (2005): 723–47. http://dx.doi.org/10.1177/1077546305053660.

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Fuzzy logic control presents a computationally efficient and robust alternative to conventional controllers. While experts can easily design fuzzy logic controllers (FLCs) for many applications, some systems such as multilink flexible manipulators, which have many variables and complex behavior, offer challenges to fuzzy logic control. In this paper we present two distributed controllers for a two-link rigid-flexible manipulator that moves in a vertical plane where the gravity field is active. The first distributed controller, which is based on observing the performance of the manipulator, use

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14

Jiang, Chong Ran, Li Li, Jin Quan Bai, and Yan Zhong Huo. "Research and Design of Distributed Controllers for Mechanical Arms of Humanoid Robot Based on FCS." Applied Mechanics and Materials 419 (October 2013): 682–87. http://dx.doi.org/10.4028/www.scientific.net/amm.419.682.

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According to the high real-time and the high anti-interference which required by the machanical arms of humanoid robot, a distributed controllers for mechanical arms of humanoid robot system based on CAN is developed, to which C8051F041 micro controller is applied as the joint controllers. The circuits of incremental discs and speed detection as well as their applications are designed. The achievement of develop and design on distributed controllers for six degrees of freedom mechanical arms fulfills the trajectory requirement of humanoid robot qualification and the system according to the stu

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15

Gehring, Nicole, Abdurrahman Irscheid, Joachim Deutscher, Frank Woittennek, and Joachim Rudolph. "Control of distributed-parameter systems using normal forms: an introduction." at - Automatisierungstechnik 71, no. 8 (2023): 624–46. http://dx.doi.org/10.1515/auto-2023-0051.

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Abstract This paper gives an overview of the control of distributed-parameter systems using normal forms. Considering linear controllable PDE-ODE systems of hyperbolic type, two methods derive tracking controllers by mapping the system into a form that is advantageous for the control design, analogous to the finite-dimensional case. A flatness-based controller makes use of the hyperbolic controller canonical form that follows from a parametrization of the system’s solutions. A backstepping design exploits the strict-feedback form of the system to recursively stabilize and transform the subsyst

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16

Yang, Hongyong, Fujun Han, Fei Liu, Huixia Liu, and Mei Zhao. "Distributed Coordination of Fractional Dynamical Systems with Exogenous Disturbances." Mathematical Problems in Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/793903.

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Distributed coordination of fractional multiagent systems with external disturbances is studied. The state observer of fractional dynamical system is presented, and an adaptive pinning controller is designed for a little part of agents in multiagent systems without disturbances. This adaptive pinning controller with the state observer can ensure multiple agents' states reaching an expected reference tracking. Based on disturbance observers, the controllers are composited with the pinning controller and the state observer. By applying the stability theory of fractional order dynamical systems,

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17

Gaur, Puru, Amish Tandon, Nupur Goyal, Gitanjali Chandwani, and Mangey Ram. "An Analysis of Hierarchical Software-Defined Network Control Plane: A Reliability Approach." International Journal of Reliability, Quality and Safety Engineering 27, no. 03 (2019): 2050010. http://dx.doi.org/10.1142/s0218539320500102.

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Present-day computer systems have drastically transformed from the ones in days of basic file sharing, peripheral sharing or the hosting of companywide applications on a server to much more sophisticated, small and faster systems. These systems have further expanded to include cloud-based networks, virtualized desktops, servers, etc. The capabilities of evolving heterogeneous computer systems require advanced control plane. Software-defined networking (SDN) proposes to control the network from a centralized controller instead of a distributed configuration. SDN makes it easier for network oper

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18

Rashad, Muhammad, Uzair Raoof, Muhammad Ashraf, and Bilal Ashfaq Ahmed. "Proportional Load Sharing and Stability of DC Microgrid with Distributed Architecture Using SM Controller." Mathematical Problems in Engineering 2018 (2018): 1–16. http://dx.doi.org/10.1155/2018/2717129.

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DC microgrids look attractive in distribution systems due to their high reliability, high efficiency, and easy integration with renewable energy sources. The key objectives of the DC microgrid include proportional load sharing and precise voltage regulation. Droop controllers are based on decentralized control architectures which are not effective in achieving these objectives simultaneously due to the voltage error and load power variation. A centralized controller can achieve these objectives using a high speed communication link. However, it loses reliability due to the single point failure

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Iftar, Altug. "Overlapping Decentralized Controller Design for Descriptor-type Systems with Distributed Time-delay." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 20 (September 27, 2021): 257–63. http://dx.doi.org/10.37394/23201.2021.20.29.

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Decentralized controller design using overlapping decompositions is considered for descriptor-type systems with distributed time-delay. The approach is based on the principle of extension. In this approach, a given large-scale system is decomposed overlappingly into a number of subsystems and expanded such that the overlapping parts appear as disjoint. A decentralized controller is then designed for the expanded system. This controller is then contracted for implementation on the original system. It is shown that if the decentralized controllers are designed to stabilize the expanded system an

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Qazi, Sajid Hussain, Mohd Wazir Mustafa, and Shakir Ali. "Review on Current Control Techniques of Grid Connected PWM-VSI Based Distributed Generation." ECTI Transactions on Electrical Engineering, Electronics, and Communications 17, no. 2 (2019): 152–68. http://dx.doi.org/10.37936/ecti-eec.2019172.219187.

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Nowadays, new trends in the industry of electricity generation are to enhance the power generation by employing distributed generation (DG) system which is mostly based on renewable generation sources such as wind, solar, etc. However, many power quality problems could arise on existing grid when DG is connected or the operation of distributed energy resources (DER) is not controlled properly. That's why, while integrating DG with the power grid, a seamless attention should be given to power generation and safe running of system. Several methods, having a diverse concept, have been divided int

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Patsalides, Minas, Christina N. Papadimitriou, and Venizelos Efthymiou. "Low Inertia Systems Frequency Variation Reduction with Fine-Tuned Smart Energy Controllers." Sustainability 13, no. 5 (2021): 2979. http://dx.doi.org/10.3390/su13052979.

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The distributed and stochastic nature of Renewable Power Sources is certainly forming considerable challenges for the operation of the power system. Specifically, the stability of the system can be jeopardized when the penetration of inverter-based systems is high. Storage and the proper design of controllers is seen as part of the solution for supporting the future expansion of distributed systems. Thus, control strategies need to be designed to provide the appropriate support to the system and be capable of keeping the variation of the frequency within limits to keep the reliability of the s

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Delgado, Raimarius, Jaeho Park, and Byoung Choi. "Open Embedded Real-time Controllers for Industrial Distributed Control Systems." Electronics 8, no. 2 (2019): 223. http://dx.doi.org/10.3390/electronics8020223.

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This paper presents design details adopting open embedded systems (OES) as real-time controllers in industrial distributed control systems. OES minimize development cost and enhance portability while addressing widely known shortcomings of their proprietary counterparts. These shortcomings include the black box method of distribution which hinders integration to more complex systems. However, OES are highly dependent on the compatibility of each software components and essential benchmarking is required to ensure that the system can satisfy hard real-time constraints. To address these issues a

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23

Yasuda, Gen’ichi. "Distributed Controller Design for Cooperative Robot Systems Based on Hierarchical Task Decomposition." International Journal of Humanoid Robotics 14, no. 02 (2017): 1750017. http://dx.doi.org/10.1142/s0219843617500177.

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A distributed simulation and control method for humanoid robot systems based on the discrete event net models is proposed. Extended Petri nets are adopted as an effective tool to describe, design and control the cooperative behavior of robots. Based on hierarchical net decomposition, conceptual and detailed Petri net models are assigned to the upper level and the lower level controllers, respectively. For the lower level control, individual net models of robots are executed on separate local controllers. The unified net representation for the hierarchical coordination of cooperative execution

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Liang, Wei, Sizhe Ma, Erica Cochran, and Katherine A. Flanigan. "Distributed MPC-ILC Thermal Control Design for Large-Scale Multi-Zone Building HVAC System." ACM SIGEnergy Energy Informatics Review 3, no. 2 (2023): 34–46. http://dx.doi.org/10.1145/3607114.3607118.

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With building heating, ventilation, and air conditioning (HVAC) systems accounting for 50% the energy consumption in the building sector in the United States, there is a need to develop and implement optimal control strategies for building HVAC systems that reduce energy consumption while achieving thermal comfort for users. In the author's previous work, an integrated model predictive control (MPC) and iterative learning control (ILC) design approach was presented that took advantage of both controllers. It did not rely on model accuracy compared to conventional MPC and reduced the learning c

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Mureşan, Vlad, Mihail Abrudean, Honoriu Vălean, Mihaela Ligia Ungureşan, and Tiberiu Coloşi. "Tuning a Neural Controller with Distributed Parameters." Applied Mechanics and Materials 555 (June 2014): 341–51. http://dx.doi.org/10.4028/www.scientific.net/amm.555.341.

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In this paper, a solution for the control of a distributed parameter process, using a neural distributed parameter controller is presented. The main originality elements from the paper are the introducing of the distributed parameter controller concept, respectively the including of this type of controller in a control structure. In the paper, a method for tuning a distributed parameter controller is presented, taken as example the pH control system associated to a blunting process. Also, due to the complex structure of the controller two neural networks are used for its implementation. In ord

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Bulatov, Yu N. "Joint voltage and frequency predictive controllers for distributed generation plants." iPolytech Journal 25, no. 5 (2021): 568–85. http://dx.doi.org/10.21285/1814-3520-2021-5-568-585.

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The paper determines the effect of proposed joint voltage and frequency predictive controllers for distributed generation (DG) plants on quality indicators characterizing the control process in different operating modes of power supply systems. The studies are conducted in the MatLab environment (Simulink and SimPowerSystems simulation packages) employing control engineering methods. It is proposed to design and adjust joint predictive controllers by determining the resonant frequency of oscillations for the master generator rotor. This approach provides better quality indicators of voltage an

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Pereira, José N., Porfírio Silva, Pedro U. Lima, and Alcherio Martinoli. "Formalization, Implementation, and Modeling of Institutional Controllers for Distributed Robotic Systems." Artificial Life 20, no. 1 (2014): 127–41. http://dx.doi.org/10.1162/artl_a_00100.

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The work described is part of a long term program of introducing institutional robotics, a novel framework for the coordination of robot teams that stems from institutional economics concepts. Under the framework, institutions are cumulative sets of persistent artificial modifications made to the environment or to the internal mechanisms of a subset of agents, thought to be functional for the collective order. In this article we introduce a formal model of institutional controllers based on Petri nets. We define executable Petri nets—an extension of Petri nets that takes into account robot act

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Delgoshaei, Parhum, and James D. Freihaut. "Development of a Control Platform for a Building-Scale Hybrid Solar PV-Natural Gas Microgrid." Energies 12, no. 21 (2019): 4202. http://dx.doi.org/10.3390/en12214202.

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Building-scale microgrids are a type of behind-the-meter microgrids where the building operator has control of the distributed energy resources, including, in this case, a natural gas-fired microturbine in addition to solar PV and battery energy storage systems. There is a growing trend in deploying behind-the-meter microgrids due to their benefits including the resiliency of serving critical loads, especially in regions with abundant natural gas. In order to ensure distributed energy resources are dispatched optimally for the desired mode of operation, a hierarchical control platform includin

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Jabri, Dalel, Djamel Eddine Chouaib Belkhiat, Kevin Guelton, and Noureddine Manamanni. "Decentralized Controller Design for Large Scale Switched Takagi-Sugeno Systems with H∞ Performance Specifications." Journal of Advanced Engineering and Computation 2, no. 2 (2018): 139. http://dx.doi.org/10.25073/jaec.201822.187.

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This paper investigates the design of decentralized controllers for a class of large scale switched nonlinear systems under arbitrary switching laws. A global large scale switched system can be split into a set of smaller interconnected switched Takagi-Sugeno fuzzy subsystems. In this context, to stabilize the overall closed-loop system, a set of switched non-Parallel-Distributed-Compensation (non-PDC) output-feedback controllers is considered. The latter is designed based on Linear Matrix Inequalities (LMI) conditions obtained from a multiple switched non-quadratic Lyapunov-like candidate fun

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Dmitrieva, Valeria, Pavel Sizin, and Ilyas Avkhadiev. "Selection of a Multi-Functional Controller for the Software and Hardware Complex of an Automated Control System for a Thermal Power Plant." MATEC Web of Conferences 346 (2021): 03091. http://dx.doi.org/10.1051/matecconf/202134603091.

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The article describes the main tasks that need to be solved when automating technological processes at TPS. Technological processes at TPS take place in difficult conditions, which complicates the management tasks. When creating an automated control system, modern software and technical complexes are used, which are developed by domestic manufacturers. The software and hardware complex allows you to solve all the problems of monitoring and controlling technological processes in all operating modes of power equipment. They can be used for both newly constructed and reconstructed energy faciliti

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Zhu, Zhihao, Yu Guo, and Zhi Gao. "Distributed Coordinated Attitude Regulation Control for Multiple Spacecraft with Time-varying Uncertainties." Journal of Circuits, Systems and Computers 29, no. 01 (2019): 2050018. http://dx.doi.org/10.1142/s0218126620500188.

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For multiple spacecrafts under the communication topology containing a spanning tree with the leader as the root, we investigate a distributed coordinated attitude regulation control problem of the spacecraft with unknown time-varying uncertainties and state-dependent disturbances. Aiming at solving the practical problem that the information of the leader may be only available to a subset of the followers, a novel class of distributed finite-time leaders’ state observer for each follower is proposed. Meanwhile, a new self-adjustment matrix is designed to reduce the overshoot of the system. In

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Lee, Daeil, Seoryong Koo, Inseok Jang, and Jonghyun Kim. "Comparison of Deep Reinforcement Learning and PID Controllers for Automatic Cold Shutdown Operation." Energies 15, no. 8 (2022): 2834. http://dx.doi.org/10.3390/en15082834.

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Many industries apply traditional controllers to automate manual control. In recent years, artificial intelligence controllers applied with deep-learning techniques have been suggested as advanced controllers that can achieve goals from many industrial domains, such as humans. Deep reinforcement learning (DRL) is a powerful method for these controllers to learn how to achieve their specific operational goals. As DRL controllers learn through sampling from a target system, they can overcome the limitations of traditional controllers, such as proportional-integral-derivative (PID) controllers. I

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Subudhi, Bidyadhar, Subhakanta Ranasingh, and Ajaha Swain. "Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator." Archives of Control Sciences 21, no. 3 (2011): 269–85. http://dx.doi.org/10.2478/v10170-010-0043-2.

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Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator Controlling multi-link flexible robots is very difficult compared rigid ones due to inter-link coupling, nonlinear dynamics, distributed link flexure and under-actuation. Hence, while designing controllers for such systems the controllers should be equipped with optimal gain parameters. Evolutionary Computing (EC) approaches such as Genetic Algorithm (GA), Bacteria Foraging Optimization (BFO) are popular in achieving global parameter optimizations. In this paper we exploit these EC techniq

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Yu, Lu, and Jinzhi Wang. "Cooperative Control for Uncertain Multiagent Systems via Distributed Output Regulation." Mathematical Problems in Engineering 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/898375.

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The distributed robust output regulation problem for multiagent systems is considered. For heterogeneous uncertain linear systems and a linear exosystem, the controlling aim is to stabilize the closed-loop system and meanwhile let the regulated outputs converge to the origin asymptotically, by the help of local interaction. The communication topology considered is directed acyclic graphs, which means directed graphs without loops. With distributed dynamic state feedback controller and output feedback controller, respectively, the solvability of the problem and the algorithm of controller desig

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Su, Can, Hao Zhou, Peng Yan, Liang Meng, and Ziwei Cheng. "Research on Improving Transient Stability of Power System with Distributed BESS and its Coordinated Control Method." E3S Web of Conferences 256 (2021): 01007. http://dx.doi.org/10.1051/e3sconf/202125601007.

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The feasibility of battery energy storage system (BESS) in ameliorating power system transient stability has been proved. However, the required BESS capacity is large, which leads to high price. Meanwhile, the improving effect is significantly affected by fault location and BESS location. To address the problem, a distributed configuration of BESS, with a coordinated control method, is proposed in this paper. Firstly, an independent double-closed loop decoupling controller is designed for each BESS, so that the BESS unit can realize decentralized control according to its local correlation info

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Shojaee, Milad, and S. Mohsen Azizi. "Sequential Design of Decentralized Robust Controllers for Strongly Interconnected Inverter-Based Distributed Generation Systems: A Comparative Study versus Independent Design." Energies 15, no. 23 (2022): 8995. http://dx.doi.org/10.3390/en15238995.

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Internal oscillations among multiple generation systems in low-voltage stand-alone nanogrids and small-scale microgrids can cause instability in the entire generation system. This issue becomes worse when the coupling strength between the generation systems increases, which is a result of a shorter distance between them and a smaller reactance to resistance ratio. Previous approaches, which were based on the independent control design and considered the coupling effect as disturbances, may fail to tackle this issue when the two generation systems become strongly coupled. Therefore, in this pap

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BUSI, JACOB PRABHAKAR, and SRINIVASARAO YELAVARTHI. "A Fuzzy Logic Based DSTATCOM for Diesel Generation System for Load Compensation." IAES International Journal of Artificial Intelligence (IJ-AI) 4, no. 1 (2015): 8. http://dx.doi.org/10.11591/ijai.v4.i1.pp8-13.

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This paper proposes the concept of distributed static compensator for compensation of harmonics, unbalances and reactive powers. The main aim of this diesel electrical generator is to generate electrical power and transfer to the distribution point. The main problems occurred in this distribution systems are voltage distributions, interruptions and variations in distribution system also called as power quality problems. The FACTS controllers are classified into different types based on improvement of power quality. These facts devices are classified based on their construction and connection t

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Erol, H. Ersin, and Altuğ İftar. "Decentralized time-delay controller design for systems described by delay differential-algebraic equations." Transactions of the Institute of Measurement and Control 43, no. 14 (2021): 3129–48. http://dx.doi.org/10.1177/01423312211015961.

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This paper presents a complete approach for designing stabilizing linear time-invariant decentralized finite-dimensional or retarded time-delay output feedback controllers for linear time-invariant systems of delay differential-algebraic equations. The proposed approach is based on the sequential design of the local controllers by using a centralized controller design algorithm. In this sequential design approach, the local controller to be designed at each step is determined depending on the mobility of the rightmost modes with respect to the controllers that have not yet been designed and cl

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Liu, Zongcheng, Hanqiao Huang, Sheng Luo, Wenxing Fu, and Qiuni Li. "Fully Distributed Control for a Class of Uncertain Multi-Agent Systems with a Directed Topology and Unknown State-Dependent Control Coefficients." Applied Sciences 11, no. 23 (2021): 11304. http://dx.doi.org/10.3390/app112311304.

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To address the control of uncertain multi-agent systems (MAS) with completely unknown system nonlinearities and unknown control coefficients, a global consensus method is proposed by constructing novel filters and barrier function-based distributed controllers. The main contributions are as follows. Firstly, a novel two-order filter is designed for each agent to produce informational estimates from the leader, such that a connectivity matrix is not used in the controller’s design, solving the difficultly caused by the time-varying control coefficients in a MAS with a directed graph. Secondly,

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Menighed, Kamel, Joseph Julien Yamé, and Issam Chekakta. "A Non-Cooperative Distributed Model Predictive Control Using Laguerre Functions for Large-Scale Interconnected Systems." Journal Européen des Systèmes Automatisés 55, no. 5 (2022): 555–72. http://dx.doi.org/10.18280/jesa.550501.

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This paper deals with a new non-cooperative distributed controller for linear large-scale systems based on designing multiple local Model Predictive Control (MPC) algorithms using Laguerre functions to enhance the global performance of the overall closed-loop system. In this distributed control scheme, that does not require a coordinator, local MPC algorithms might transmit and receive information from other sub-controllers by means of the communication network to perform their control decisions independently on each other. Thanks to the exchanged information, the sub-controllers have in this

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Yasuda, Gen’ichi. "Model Based Design and Implementation of Hierarchical and Distributed Control for Robotic Flexible Manufacturing System Cells Using Petri Nets." Advanced Materials Research 211-212 (February 2011): 856–60. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.856.

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This paper deals with the modeling and control of discrete event robotic manufacturing cells using Petri nets, and proposes a methodology of model based design and implementation of hierarchical and distributed control. Hierarchical Petri net models are adopted; conceptual Petri net model and detailed Petri net model. The overall detailed Petri net model is decomposed into local Petri net models which are used by the local machine controllers. The upper level station controller coordinates the distributed local controllers so that the aggregate behavior of decomposed subnets is the same as tha

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Fusco, Giuseppe, and Mario Russo. "A Procedure to Determine the Droop Constants of Voltage Controllers Coping with Multiple DG Interactions in Active Distribution Systems." Energies 13, no. 8 (2020): 1935. http://dx.doi.org/10.3390/en13081935.

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In modern distribution systems, the presence of an increasing amount of Distributed Generation (DG) systems causes over-/under-voltage problems, due to the reverse power flows. To face these problems, the voltage-reactive power droop controllers of DG systems are commonly used for their simplicity and are required by international standards. On the other hand, the interaction among voltage droop controllers of different DG systems may introduce instability. The paper presents an effective procedure to determine the droop constants of voltage-reactive power controllers for multiple DG systems.

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Oleiwi, Wed Kadhim, and Alharith A. Abdullah. "Design and Implementation of Distributed Controller Clustering for Solving the Issue of Single Failure in SDN Networks." Webology 18, no. 2 (2021): 1365–78. http://dx.doi.org/10.14704/web/v18i2/web18395.

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Abstract Software-Defined Networks (SDN) It is a centralized control structure in the network that opens up new possibilities that did not exist before. The significant characteristic of this innovative approach is the focus on the capability of proposing networks of high dynamicity and programmability to transform the intelligence of underlying systems to the networks via controllers. The main issue of the SDN approach is found in its security, mainly due to its central-controlling architecture since the entire network is controlled from a central point. This makes it very vulnerable to singl

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Xiao, Mengmeng, and Shaorong Wang. "Coordination Control Method Suitable for Practical Engineering Applications for Distributed Power Flow Controller (DPFC)." Energies 11, no. 12 (2018): 3406. http://dx.doi.org/10.3390/en11123406.

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To control multiple series units of distributed power flow controller (DPFC), a hierarchical control method is proposed. This coordination control system consists of a coordination controller and multiple series unit controllers. According to the demand of power flow ordered by a dispatch center, the corresponding series-compensated voltage is calculated by a high-level controller and transferred to each series unit controller. Comparing the targeted compensated voltage with actual injected voltage, the modulation signal of the converter will be modified to change the power flow accurately. Th

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KING, BELINDA B. "NONUNIFORM GRIDS FOR REDUCED BASIS DESIGN OF LOW ORDER FEEDBACK CONTROLLERS FOR NONLINEAR CONTINUOUS SYSTEMS." Mathematical Models and Methods in Applied Sciences 08, no. 07 (1998): 1223–41. http://dx.doi.org/10.1142/s0218202598000561.

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In this paper, we discuss the use of nonuniform grids in reduced basis design for developing low order nonlinear feedback controllers for hybrid distributed parameter systems. The reduced basis approach was presented in an earlier paper by Burns and King; therein, all approximations were based upon uniform grids. In this paper, we explore the effect on control design of using nonuniform grids in the fundamental step of approximating the functional controller gains. We illustrate the process using a weakly nonlinear distributed parameter system.

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Rajabpour, Leila, Hazlina Selamat, Alireza Barzegar, and Mohamad Fadzli Haniff. "Design of a robust active fuzzy parallel distributed compensation anti-vibration controller for a hand-glove system." PeerJ Computer Science 7 (October 29, 2021): e756. http://dx.doi.org/10.7717/peerj-cs.756.

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Undesirable vibrations resulting from the use of vibrating hand-held tools decrease the tool performance and user productivity. In addition, prolonged exposure to the vibration can cause ergonomic injuries known as the hand-arm vibration syndrome (HVAS). Therefore, it is very important to design a vibration suppression mechanism that can isolate or suppress the vibration transmission to the users’ hands to protect them from HAVS. While viscoelastic materials in anti-vibration gloves are used as the passive control approach, an active vibration control has shown to be more effective but require

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Anderson, A. J. "Adaptive Pole Placement Control Using Multiple Transputers." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 206, no. 1 (1992): 63–71. http://dx.doi.org/10.1243/pime_proc_1992_206_308_02.

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The paper details the implementation of an adaptive pole placement algorithm on a multiple transputer system. The controller makes use of the extended least squares parameter estimation algorithm and is controlled at the local level by a supervisor task which monitors the behaviour of the control system to ensure robust operation under a variety of environmental conditions. This enhances the integrity of the controller in real-time operations. The adaptive controller is also configured to be used as a node within a distributed control system such that a central network interface can configure

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Aluko, Anuoluwapo, Elutunji Buraimoh, Oluwafemi Emmanuel Oni, and Innocent Ewean Davidson. "Advanced Distributed Cooperative Secondary Control of Islanded DC Microgrids." Energies 15, no. 11 (2022): 3988. http://dx.doi.org/10.3390/en15113988.

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In an islanded DC microgrid with multiple distributed generators (DGs), the droop control is employed to realize proportional current sharing among the DGs in the microgrid. The action of the droop control causes a deviation in the DC bus voltage which is exacerbated by the line impedance between the DG and the DC bus. In this paper, an advanced distributed secondary control scheme is proposed to simultaneously achieve accurate voltage regulation and cooperative current sharing in the islanded DC microgrid system. The proposed distributed secondary controller is introduced in the cyber layer o

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Lee, S., and Y. Kim. "Distributed persistent coverage control and performance evaluation of multi-agent system." Aeronautical Journal 123, no. 1268 (2019): 1701–23. http://dx.doi.org/10.1017/aer.2019.11.

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ABSTRACTThe persistent coverage control problem is formulated based on cell discretisation of two-dimensional mission space and time-increasing cell ages. A new performance function is defined to represent the coverage level of the mission space, and time behaviour is evaluated by the probabilistic method based on the detection model of agents. For comparison, persistent coverage controllers are designed by a target-based approach and a reactive approach. Both controllers are designed in a distributed manner using Voronoi tessellation and Delaunay graph-based local information sharing. Numeric

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Chen, Wei Min, and Cai Hui. "Design on a Micro-Grid System without Inverse-Power-Flow Based on Distributed Generation." Applied Mechanics and Materials 321-324 (June 2013): 1342–46. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1342.

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Recent years, traditional radiate passive power distribution will become an active power with many medium or small power sources and loads, when distributed generation by new energy (such as wind power or photovoltaic power) are connected to power grid more and more. This change of power distribution brings large harm to security of power grid. This paper proposed a micro-grid system without inverse-power-flow based on distributed generation, which center controller and load controller are deployed, and distribution powers, loads and load controllers are partitioned into different domains conn

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