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In this paper, we present a new model using the high frequency electromagnetic simulator for several binary mixtures where the load is in the lossless thin film form with a permittivity of (∊ = 100, 200, 300, and 400) and for various thickness values in a range of 10 μm to 250 μm with respect to the host matrix. The model operates in a variety of frequencies from 8.2 GHz to 12.4 GHz. The effective...
In consistent flow migration, the task is to change the paths the flows take in the network, but without inducing congestion during the update process. Even though the rise of Software Defined Networks allows for centralized control of path changes, the execution is still performed in an inherently asynchronous system, the switches distributed over the network. To this end, a multitude of scheduling...
The occurrence of multiple holes in wireless sensor networks poses many challenges in designing routing protocols. The traditional scheme is forwarding packets along the hole perimeters. However, this scheme leads to two serious problems: data concentration around the hole boundaries and routing path enlargement Recently, several approaches have been proposed to address these two problems, wherein...
This paper offers a form of filtration based on moving average filter and KNN imputation method, for pre-processing hourly electricity load data for Short-Term Load Forecasting (STLF). The STLF is developed by the Adaptive Network Based Fuzzy Inference System (ANFIS). There is a lack of data pre-processing related to load forecasting, especially STLF. Unlike previous studies, to enhance the accuracy...
The efficient integration of renewable energy in the present infrastructure requires the use of storage technologies and the inclusion of other energy sectors as electricity and natural gas to use synergistic effects. In this paper we present an approach to find an optimal solution using Reinforcement Learning (RL) methods. We use the concept of “Energy Hub” (EH) and “Smart Grid” to improve the operation...
In far-off regions without a connection to the main grid, primarily diesel generators are used for the power supply. However, hybrid energy systems such as PV-diesel-battery systems have a high potential to reduce CO2-emissions and fuel costs. As a challenge, on the one hand, smart dispatch strategies are required to compensate the limited part-load capacity of diesel generators and the volatility...
As renewable energy becomes a larger fraction of the overall energy mix in the US, energy storage technology and its efficient deployment will be increasingly necessary. This work examines a small-scale microgrid which supplies renewable energy to a single building with both electric (battery) and thermal (hot-water) energy storage. The building contains a mix of apartments and one commercial kitchen,...
Modeling and simulation have shown essential for forecasting load and resource availability in large-scale complex scenarios. The growth of urban environments, as well as the use of ICT in enabling applications and services, has encouraged several works on the modeling of transportation. High mobility of vehicles in such a context consists of a significant challenge in modeling traffic. Several microscopic...
Mesoscopic Traffic Simulation is an important tool in traffic analysis and traffic management support. The balance between traffic modeling details and performance has made Mesoscopic Traffic Simulation one of the key solutions for traffic controllers and policy makers. Mesoscopic traffic simulators offer acceptable speed in simulating normal traffic. However, when traffic prediction and optimization...
In this paper, design of a wideband high efficiency GaN-HEMT power amplifier operating in 1.9–2.9 GHz is presented. The amplifier is stabilized optimally for mean gain degradation over the frequency range by following a two-step process. Source- and load-pull simulations are applied to determine the optimum impedances for the transistor. Besides, harmonic load impedances are also considered to ensure...
This paper presents a simulation and experimental study on power sharing between batteries and supercapacitors. Filters are used as a frequency splitter to share the power demanded by the load between the battery and the supercapacitor according to their dynamics. Experimental tests were carried out on a test bench to validate the proposed simulation.
Basin-type insulators are major insulating component and the conductive supporting structure of GIS(Gas Insulated Switchgear) and GIL(Gas-insulated Metal-enclosed Transmission Line), and have significant influence on the performance and reliability of the equipment. Many studies focused on the mechanical strength and environmental adaptability since the application of basin-type insulator. The simulation...
A simple network model with torus topology and the virtual cut-through routing have been considered in order to find out and analyze certain relationships that can be used as a starting point for a deeper theoretical analysis and further research. An expression for the saturation point (message generation rate at which network saturates) and approximate expressions for the latency as a function of...
The location of distributed generators (DG) with different size on the power distribution systems could modify the voltage profile and impacts the level of real power losses. Faster optimization technique as well as a high computational speed of load flow are therefore required. This paper presents a linear model and an algorithm that allow to calculate the real power losses of the system. This methodology...
Improving electric energy conservation has been a topic of interest to the electric power industry for a long time. Conservation Voltage Reduction (CVR) is a proven method for saving energy and reducing peak demand. However, due to highly stochastic load behavior and increasing the market penetration by intermittent renewable energies, energy conservation remains a challenge. We propose an improved...
The paper presents recent technological advancements that have been made by Siemens PLM in its simulation tools for multi-body analyses and multi-physics simulation in order to run physics-based high fidelity models in real-time. The motivation is enable reuse of simulation models developed during the engineering phase during the validation phase with hardware or humans in the loop. To demonstrate...
The inductively coupled coil in wireless power transfer (WPT) system is the key to optimizing the power transfer efficiency. Based on an iterative printed spiral coil (PSC) design procedure, this paper proposes a load-based design method to improve the efficiency stability for a load-variable system. The efficiency stability coefficient is defined to choose the optimal PSCs. Several pairs of PSCs...
The electrical power transfer is an essential element of an energy system. Along with frequency and phase, electrical power influences the dimensions and costs involved. The paper presents an analysis of mark-space method, which offers a mathematical solving of power measurement in singlephase AC circuits. Remarkable that it can has analog solution implemented. The existence of electronic circuits...
This paper presents the modelling and simulation of a low-power Brushless DC machine in a Rotor Flux Oriented mode in MATLAB/Simulink. The modelling of the machine is presented in the synchronous dq frame. Using this model suitable Proportional Integral controllers have been designed for the Rotor Flux Oriented speed and current loops. Sensorless simulation estimates obtained from a back-emf observer...
The paper refers to the equipment for the espresso production process and the peculiarities of hydraulic systems and pump functioning. A common myth for newcomers to the espresso machine world is that the rotary vane pump, also known as the permanent displacement pumps are superior to the vibrating armature pumps. This is not always true and these two pumps, which are the most popular ones in espresso...
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