This paper proposes a non-superconducting bridge-type fault current limiter (BFCL) as potential solution to the problems of doubly fed induction generator (DFIG) integrated voltage source converter high-voltage DC (VSC-HVDC) transmission systems. As VSC-HVDC and DFIG systems are vulnerable AC/DC faults, BFCL controller is developed insert sizeable impedance during inception system disturbances. In proposed control scheme, constant capacitor maintained by stator VSC (SVSC) controller, while...

Recent advancements in design methodologies have greatly enhanced the dependable of offshore structures. However, rigorous validation remains crucial for confirming efficacy these designs. Concrete, a material widely used structures, faces significant challenges under harsh environmental conditions such as chloride ion exposure from seawater. This leads to deterioration concrete properties and poses severe threat sustainability Cracking concrete, both new operational phases, often...

This study demonstrates that a drone flying above photovoltaic (PV) panels can clean the dust and enhance panels’ efficiency. If operated regularly, drone’s downward thrust generated during its cruise at certain height remove most of accumulated dust. Sandstorms are frequent in Saudi Arabia, creating deposition on PV panels, which acts as shield against solar radiation. As result, energy absorption from radiation is reduced subsequently, output reduced. experimental investigation was...

Voltage source converter high voltage DC (VSC-HVDC) system has number of advantages over traditional line commutated HVDC (LCC-HVDC). However, VSC-HVDC is exposed to current due faults having great negative effect on converters. In order limit fault relatively low level, bridge type limiter (BFCL) for been proposed in this study. Fault limiters are placed with the AC gird sides system. Real and reactive power controller developed based control mode. Symmetrical as well unsymmetrical applied...

The maximum flow problem is a type of network optimization in the graph theory. Many important applications used and thus it has been studied by many researchers using different methods. Ford Fulkerson algorithm most popular that to solve problem, but its complexity high. In this paper, parallel Genetic applied find weighted directed graph, finding objective function value for each augmenting path from source sink simultaneously steps every iteration. implemented Message Passing Interface...

A novel CMOS current mode analog multiplier is presented. The design based on using MOSFET operating in subthreshold region to achieve ultra low power dissipation. circuit operated from ± 0.75V DC supply. proposed has been simulated Tanner 0.35μm TSMC process. Simulation results show that the total dissipation 2.3μW, harmonic distortion 0.7%, maximum linearity error 0.3% and bandwidth 2.8MHz.

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This paper proposes a non-linear control-based variable resistive bridge type fault current limiter (VR-BFCL) as prospective solution to ease the effect of disturbances on voltage source converter-based high DC (VSC-HVDC) systems. A controller for VR-BFCL has been developed insert optimum resistance during inception system in order limit current. The takes amount link deviation its input and provides duty generate effective faults. VSC-HVDC system’s real reactive power controllers have based...

Background Climate change poses significant challenges to the durability of concrete bridge structures, particularly regarding corrosion reinforcement. Iraq, due its geographical location, is vulnerable greenhouse gas emissions, with carbon dioxide (CO 2 ) being most prominent. The country's heavy reliance on energy resources like coal, gas, and oil exacerbates air pollution, further compounding environmental concerns. Corrosion reinforcement in infrastructure, including bridges, primarily...

Over the past decade, chaotic systems have found their immense application in different fields, which has led to various generalized, novel, and modified systems. In this paper, general jerk equation is combined with a scaled sine map, been approximated terms of polynomial using Taylor series expansion for exhibiting behavior. The paper based on numerical simulation experimental verification system four control parameters. proposed system’s behavior verified by calculating invariants MATLAB,...

In this paper, a new capacitor-less DC-DC converter is proposed to be used as light emitting diode (LED) driver. The design based on the utilization of internal capacitance LED replace smoothing capacitor. lighting systems usually have many LEDs for better illumination that can reach multiple tens LEDs. Such configuration utilized enlarge total and hence minimize output ripple. Also, switching frequency selected such minimum ripple appears at output. functionality confirmed experimentally...

Electric spring (ES) is a novel smart grid technology, which based on power electronic components. It has multitude of benefits associated with its widespread use at distribution level, includes voltage profile enhancement, imbalance mitigation, and quality improvement. With the ever increasing need incorporating intermittent renewable energy sources (RES), electric offers viable solution to problems linked such sources. A new generation electrical loads also recently proposed, known as...

This paper presents a linear parameter estimation technique used to estimate the rotor resistance, self inductance of winding, stator resistance and leakage an induction motor.Such is important for achieving high performance motor drives.The parameters model expresses relationships dynamic machine in terms measurable voltages, currents speed.This represented by regression equation from which can be obtained using recursive least squares (RLS) algorithm.Simulation results are presented...

This paper presents a new design of scattering transformation-based wide-area damping controller for static synchronous series compensator (SSSC) to enhance power system stability in the presence communication latency. The proposed control approach is comprised classical structure addition two transformation ports. These ports are inserted between and (WADC) regulate signal exchange. Since WADC centralized controller, time delay imperfections considered stage. formulated as an optimization...

The security and safety of public places have been a concern to more entities in recent decades. Video surveillance is widely used guarantee the places. Yet, abnormal crowd movement detection estimation are essential video avoid incidents like stampede. most challenging problem detecting locating people moving dense crowds with obstacles occlusion blind spots where traditional techniques fail. This paper presents an extensive review state-of-the-art advances behavior approaches. based on...

System level analysis is used to extract various specifications of the channel select filter for integrated dual-mode CMOS bluetooth (BT)/wireless local area network (WLAN; IEEE 802.11b) receivers. A digitally programmable active-RC suitable direct conversion topology presented. Six-bit R-2R ladders are adjust bandwidth with tuning resolution better than 1.56%. Experimental results obtained from 0.35 µm chips show that using a fourth-order satisfies selectivity requirements both...

Demand-generation mismatch introduces extensive technical as well economic challenges to the power system network. Furthermore, with increasing global interest in integrating variable renewable generation systems, it becomes more challenging eliminate demand-generation mismatch. Therefore, elimination of will define efficacy and quantify economics future integrated smart grid systems. Incorporating batteries provide energy buffering is among most feasible, but expensive, solutions deal...

The tree-hypercube (TH) interconnection network is relatively a new network, which constructed from tree and hypercube topologies. TH developed to support parallel algorithms for solving computation communication intensive problems. In this paper, we propose multiplication algorithm on present broadcast operation using store-and-forward technique, namely, one-to-all allows message be transmitted through the shortest path source node all other nodes. proposed implemented evaluated in terms of...