In recent years, reinforcement learning (RL)-based controller design methods have emerged as a powerful alternatives to traditional methods, providing a novel paradigm that overcomes limitations associated with the ne...
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This paper presents the development of improved synergetic current control for the injected current of an inverter in the grid-connected microgrid and the distributed generation system(DGS). This paper introduces new ...
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This paper presents the development of improved synergetic current control for the injected current of an inverter in the grid-connected microgrid and the distributed generation system(DGS). This paper introduces new formulas of the macro-variable functions for integral synergetic control(SC)and integral fast terminal SC, which both have an integral term to guarantee zero steady-state error. The proposed integral SC and integral fast terminal SC achieve a seamless performance such as the fast convergence, minimal overshoot, zero steady-state error, and chattering-free operation. To demonstrate the meritorious performance of the proposed scheme for injected current control, it is compared with the performance of a proportional-integral(PI) controller and advanced exponential sliding mode control(SMC). Finally, the practicality of the proposed scheme is justified by experimental results obtained through rapid control prototyping(RCP) using the dSPACESCALEXIO platform.
In this paper, a new block diagonal chaotic model (BDC) is investigated due to higher necessity of advanced secure data transmission method in wireless medium and considerable limitation on computational storage space...
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This research examines the optimal combination of solar panel and battery capacity in hybrid systems in 11 cities on the island of Borneo,utilizing the region’s significant solar energy potential and high irradiation...
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This research examines the optimal combination of solar panel and battery capacity in hybrid systems in 11 cities on the island of Borneo,utilizing the region’s significant solar energy potential and high irradiation *** research analyses the optimal combination of solar panels and battery capacity in 11 cities in Kalimantan using particle swarm optimization(PSO)and grey wolf optimization(GWO)algorithms to maximize energy output,reduce levelised energy costs,and maximally reduce carbon *** show Tara-kan as the most optimal location,generating 215,804.88 kWh for IDR 916.9/kWh and lowering emissions by 435,884.29 kgCO_(2)e,while Samarinda is the least optimal ***,electricity tariffs of IDR 2,466.78/kWh and IDR 2,000/kWh generate a positive Net Present Value(NPV)with a payback period(PP)of 9-12 years,while a tariffof IDR 1,500/kWh is considered *** demonstrate the effectiveness of PSO and GWO in optimizing the renewable energy system and confirm the project’sfinancial viability,with a positive NPV and reasonable *** renewable energy systems in Kalimantan Island can improve energy effi-ciency and significantly reduce carbon emissions,supporting environmental sustainability goals.
Modern automobiles are equipped with connectivity features to enhance the user's *** is one such communication technology that is used to pair a personal device with an automotive infotainment *** pairing,the user...
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Modern automobiles are equipped with connectivity features to enhance the user's *** is one such communication technology that is used to pair a personal device with an automotive infotainment *** pairing,the user could access the personal information on the phone through the automotive head unit with minimum distraction while ***,such connectivity introduces a possibility for privacy ***,performing an in-depth analysis of the system with privacy constraints is extremely important to prevent unauthorized access to personal *** this work,we perform a systematic analysis of the Bluetooth network of an automotive infotainment unit to exploit security and privacy-related *** model the identifed threat with respect to privacy constraints of the system,emphasize the severity of attacks through a standardized rating metric and then provide potential countermeasures to prevent the *** perform System Theoretic Process Analysis for Privacy as a part of the systematic analysis and use the Common Vulnerability Scoring System to derive attack *** identifed vulnerabilities are due to design flaws and assumptions on Bluetooth protocol implementation on automotive infotainment *** then elicit the vulnerability by performing a privacy attack on the Automotive system in an actual *** use Android Open-Source Project to report our findings and propose defense strategies.
This paper investigates a security problem of simultaneously addressing two types of attacks:Eavesdropping and *** authors model the target system as a discrete-event system(DES)with subsets of concealable events and ...
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This paper investigates a security problem of simultaneously addressing two types of attacks:Eavesdropping and *** authors model the target system as a discrete-event system(DES)with subsets of concealable events and protectable events,in order to make the proposed methodology applicable to various practical systems and employ two existing works of DES security:Degree of opacity and state ***,the authors consider that all protectable events are observable,and some observable events are *** addition,protectable events cannot be protected once they are *** such a constraint,the goal is to figure out which events to conceal and which transitions to protect so that the prescribed requirements of degree of opacity and state protection are *** this work the authors decide which events to conceal as all transitions of a given event label are concealed or not *** proposed problem formulation also requires a solution to only involve absolutely necessary protectable events in order for the system to avoid superfluous protection *** authors first examine a general version of our security problem with an intuitive algorithm to compute acceptable solutions,and then present a special version which results in a reduced computation time compared to the general version.
While spin-orbit interaction has been extensively studied,few investigations have reported on the interaction between orbital angular momenta(OAMs).In this work,we study a new type of orbit-orbit coupling between the ...
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While spin-orbit interaction has been extensively studied,few investigations have reported on the interaction between orbital angular momenta(OAMs).In this work,we study a new type of orbit-orbit coupling between the longitudinal OAM and the transverse OAM carried by a three-dimensional(3D)spatiotemporal optical vortex(STOV)in the process of tight *** 3D STOV possesses orthogonal OAMs in the x-y,t-x,and y-t planes,and is preconditioned to overcome the spatiotemporal astigmatism effect.x,y,and t are the axes in the spatiotemporal *** corresponding focused wavepacket is calculated by employing the Debye diffraction theory,showing that a phase singularity ring is generated by the interactions among the transverse and longitudinal vortices in the highly confined *** Fourier-transform decomposition of the Debye integral is employed to analyze the mechanism of the orbit-orbit *** is the first revelation of coupling between the longitudinal OAM and the transverse OAM,paving the way for potential applications in optical trapping,laser machining,nonlinear light-matter interactions,and more.
Assistive lower limb exoskeleton robot has been developed to help paraplegic patients walk again.A gait planning method of this robot must be able to plan a gait based on gait parameters,which can be changed during th...
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Assistive lower limb exoskeleton robot has been developed to help paraplegic patients walk again.A gait planning method of this robot must be able to plan a gait based on gait parameters,which can be changed during the stride according to human intention or walking *** gait is usually planned in cartesian space,which has shortcomings such as singularities that may occur in inverse kinematics equations,and the angular velocity of the joints cannot be entered into the ***,it is vital to have a gait planning method in the joint *** this paper,a minimum-time and minimum-jerk planner is proposed for the robot *** do so,a third-order system is defined,and the cost function is introduced to minimize the jerk of the joints throughout the *** minimum time required is calculated to keep the angular velocity trajectory within the range specified by the motor’s maximum *** conditions of the joints are determined to secure backward balance and fulfill gait ***,the proposed gait planning method is tested by its implementation on the Exoped®exoskeleton.
Multiagent Reinforcement Learning (MARL) plays a pivotal role in intelligent vehicle systems, offering solutions for complex decision-making, coordination, and adaptive behavior among autonomous agents. This review ai...
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Multiagent Reinforcement Learning (MARL) plays a pivotal role in intelligent vehicle systems, offering solutions for complex decision-making, coordination, and adaptive behavior among autonomous agents. This review aims to highlight the importance of fostering trust in MARL and emphasize the significance of MARL in revolutionizing intelligent vehicle systems. First, this paper summarizes the fundamental methods of MARL. Second, it identifies the limitations of MARL in safety, robustness, generalization, and ethical constraints and outlines the corresponding research methods. Then we summarize their applications in intelligent vehicle systems. Considering human interaction is essential to practical applications of MARL in various domains, the paper also analyzes the challenges associated with MARL's applications in human-machine systems. These challenges, when overcome, could significantly enhance the real-world implementation of MARL-based intelligent vehicle systems. IEEE
Power line communication (PLC) systems enable information exchange over existing electric power grids at a low deployment cost. Such systems constitute a crucial component of smart grids. However, PLC is negatively af...
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