The use of solar photovoltaic (PV) panels has been seen as a viable solution to improve the rate rural electricity supply in African states. Today, PV systems helped overcome low coverage rates. One bottlenecks installations sub-Saharan Africa is efficiency modules caused largely by heat accumulation during system operation. This research work aims at studying electrical performances and PVT mo...

This study describes a novel approach to design of power factor correction (PFC) and total harmonic distortion (THD) reduction-based brushless DC (BLDC) motor drive. The drive was designed obtain reduced THD for PFC. basic the BLDC contains an AC voltage source as input diode bridge rectifier. output is filtered out reduce ripples. smooth supplied modified Zeta converter. converter controlled b...

This study aims to build a dynamic model of direct steam generation (DSG) solar power system coupled with accumulator meet electricity demands for hospital under transient environmental conditions in Libya. The main components the are DSG parabolic trough collectors, accumulator, turbine, condenser and circulation pump. is modelled via using Simulink\Simscape software blocks integrated MATLAB f...

The functionality of industrial refrigeration systems is important for environment-friendly companies and organizations, since faulty can impact human health by lowering food quality, cause pollution, even lead to increased global warming. Therefore, in this industry, there a high demand among manufacturers early automatic fault diagnosis. In paper, different machine learning classifiers are te...

This research suggests a novel distributed cooperative control methodology for secondary controller in islanded microgrids (MGs). The proposed technique not only brings back the frequency/voltage to its reference values, but also maintains precise active and reactive power-sharing among generation (DG) units by means of sparse communication system. Due dynamic behaviour (DSC), stability issues ...

The pulse-with modulated (PWM) dc-dc buck-boost converter is a non-minimum phase system, which requires proper control scheme to improve the transient response and provide constant output voltage during line load variations. pole placement technique has been proposed in literature this type of power achieve desired response. However, systematic design procedure such law using low-cost electroni...

In this study, a hybrid wheeled fire extinguisher robot has been created. The two-degrees-of-freedom (DoF) gun turret. To control the disruptive effect of mechanical oscillations on firing system during movement body, PID and SMC controllers are used. When closed flat ground, robot’s five-piece transformable wheel construction allows it to travel swiftly. mechanism opens tough terrain, allowing...

This article presents an optimization-based technique for solving the inverse kinematics (IK) of spatially redundant manipulators in agricultural environments (workspaces). A kinematic configuration 9 degrees freedom (DOF) manipulator with eight revolute and one prismatic joint has been modelled to improve accessibility complex workspaces. The proposed simulated harvesting fruits vegetables. To...

Abstract Hybrid systems based on renewable energies for the electrification of remote sites controlled by power management (PMSs) aim to reduce fossil fuels and increase efficiency energy sources minimize greenhouse gas emissions. The influential role PMS contributes improving effectiveness these ensuring a balance between different loads in all operating modes. However, abrupt transitions vari...

The impedance analysis has been proposed and proved to be an effective way analyze the grid-connected stability of Voltage Source Converter (VSC) based energy conversion systems. Most existing analyzes are discussed on vector oriented control, while there few discussions about Direct Power Control (DPC). In this paper, modeling approach VSC using DPC is firstly analyzed, which fills gap convert...