In traditional power system, economic dispatch and generation control are separately applied. Online adjustment is necessary to regulate reference for real-time realize operation of systems. Since most solutions centralized, they usually expensive implement, susceptible single-point-failures, inflexible. To address the above-mentioned problems, this paper proposed a multi-agent system based distributed solution that can optimal control. The designed upon an improved gradient algorithm, which...

This letter investigates masked beamforming schemes for multiuser multiple-input multiple-output (MIMO) downlink systems in the presence of an eavesdropper. With noisy and outdated channel state information (CSI) at base station (BS), we aim to maximize transmit power artificial noise, which is broadcast jam any potential eavesdropper, while meeting individual minimum mean square error (MMSE) constraints desired user links. To this end, adopt a Bayesian approach derive average MSE...

A novel traveling-wave-based fault-location algorithm for multiterminal transmission lines is introduced in this paper. Existing traveling-wave methods that based on the data measured at line terminals lack reliability and accuracy because time synchronization needed, which brings error. To solve problem, complex structure of power system divided into several fault identification branches, current midpoint each branched measured, a proposed, error eliminated. line-based device designed to...

We investigate properties of strange quark matter in the framework SU(3) Nambu--Jona-Lasinio model with vector interactions under strong magnetic fields. The effects vector-isoscalar and vector-isovector on equation state are investigated, it is found that not sensitive to interaction; however, a repulsive interaction channel gives stiffer for cold dense matter. In presence field, gluons will be magnetized via loops, contribution from also estimated. sound velocity square quantity measure...

We study the robust production and maintenance control for a system subject to degradation. A periodic scheme is considered, rate can be dynamically adjusted before maintenance, serving as proactive way of degradation management. Optimal aims strike balance between risk failure profit. first consider scenario in which increases linearly with rate. Different from existing literature that posits parametric stochastic process, we suppose increment during period lies an uncertainty set, our...

Aiming at the accuracy of modeling in existing integrated energy system planning methods, a comprehensive p lanning method that takes into account actual operating efficiency is proposed. First, output model various equipment units based on basic structure established. Then, traditional hub model, correction for work to construct an improved dynamic With goal minimizing cost system, operation characteristics Finally, proposed this paper verified through simulation. The results show that:...

This paper investigates the joint state and disturbance estimation for general linear multi-input multi-output (MIMO) systems that do not satisfy observer matching conditions. Resorting to invariant subspace decomposition, given system is initially partitioned into two components: a strongly observable subsystem detectable subsystem. For subsystem, step-to-step scheme prescribed-time differentiator are adopted achieve accelerated estimation. Cooperated with particular intermediate variables...

Accurate and efficient climate simulations are crucial for understanding Earth's evolving climate. However, current general circulation models (GCMs) face challenges in capturing unresolved physical processes, such as cloud convection. A common solution is to adopt resolving models, that provide more accurate results than the standard subgrid parametrisation schemes typically used GCMs. also referred super paramtetrizations, remain computationally prohibitive. Hybrid modeling, which...

Within the confined isospin- and density-dependent mass model, we study properties of strange quark matter (SQM) stars (QSs) under strong magnetic fields. The equation state SQM a constant field is obtained self-consistently pressure perpendicular to shown be larger than that parallel field, implying magnetized QSs generally depend on both strength orientation fields distributed inside stars. Using profile which introduced mimic distribution in star, static spherical by assuming two extreme...

Fragility modeling and real-time risk assessment can be widely applied to evaluate enhances the resilience of power system High-Impact Low Probability events. In previous studies, fragility generally targets extreme weather conditions other than thunderstorm. This paper proposes a model describe relationship between duration thunderstorm probability lightning related trip-out. The thunderstorms, which usually forecasted from meteorological department, together with function expression help...

This study proposes a novel multiple model adaptive control (MMAC) algorithm for class of nonlinear discrete time systems. The controller consists linear indirect controller, based on neural networks, and switching mechanism. input is generated by the mechanism, which selects candidate from two controllers. assumption term relaxed to linear-bounded when modified law introduced. restraint that plant should be with respect removed resorting pole-placement scheme. proposed method can address...

Predictions of the spatiotemporal distribution fault events help management planning and maintenance scheduling in power transmission systems. To this end, study proposes an early warning system based on exploration cause‐attribute relationships. A comprehensive assessment all causes is conducted by incorporating entire available environmental attributes investigated as inputs. cope with rarely occurred elements, a procedure weighted association rule mining established. Then, risk evaluation...

This project is based on quad-rotor Unmanned aerial vehicle (UAV), which made of ARM embedded system and STM32F1 series 32-bit micro-control Mono-Chip Computer. Under the framework operating UC/OS, to replace staff workers, this UAV employed conduct detecting noxious gas through all kinds sensors. With use wireless transmission technology, it possible real-time communication with mobile phone, assist ground complete detection work auxiliary undertake safety assessment, such as exploring...

Lightning performance evaluation is aimed at classifying transmission lines into different risk levels of thunderstorm-induced trip-out. Its applications range from better lightning protection guidance, arrester installation design, line retrofits, and corridor design. Previous studies fail to consider the real-time intensity, which an essential factor trip-out that must not be ignored. This article proposes a novel model based on idea tower, has record with weaker more susceptible trip out,...