A power flow program is developed to analyze the harmonic distortion of a system with various types loads. The proposed can be applied solve current flow, voltage factor, resonance frequency, and amplification factor at every bus in system. In this study, large metal factory selected for analysis. waveforms are measured analyzed determine orders components. These currents used computer simulation buses system, variations impedance frequencies investigated. Finally, calculate load when...

This paper develops a systematic method of optimally locating and sizing the compensation capacitors on distribution feeders by taking into account mutual coupling effect among phase conductors. The equivalent circuit models three-phase, two-phase single-phase conductors are applied so that could be included in computer simulation. optimal capacitor placement is solved minimizing objective function which determined combination system peak power loss cost, energy cost cost. Both unbalance...

Due to concerns with air pollution and climate change, governments transport operators around the world have engaged in transforming their fossil-fueled vehicles into electric (EVs). It is essential build a model for electrifying process minimize operation costs. This paper presents systematic analytical approach electrification of fire ambulance service station. begins selection suitable EVs replace current vehicles. Subsequently, an in-depth analysis conducted determine practical...

The objective of this paper is to derive a systematic algorithm decide the optimal location and size shunt capacitors filters for distribution systems with harmonic distortion. In paper, problem reactive power compensation first formulated as nonlinear programming minimization real loss, energy loss capacitor cost under voltage constraints. solved by MINOS package determine locations sizes capacitors. load flow then applied solve total distortion factor filter design executed simultaneously....

Adaptive learning for individual learners has recently become popular in education. This study aims to fill the void existing literature by building an adaptive system with evaluation rubrics based on dynamic scaffolding theory order promote achievement. An experimental design was conducted evaluate effectiveness of using scaffoldings and self-assessment process. Sixty university students participated this executed a pre-test post-test. The independent-sample t-test procedure applied examine...

In this study, a bidirectional CL3C full-bridge resonant converter was developed using active bridge as the main framework to improve conventional LLC converters. A inductor and capacitor were installed at secondary side of converter. The operation enables zero-voltage switching supply-side power switch zero-current load side. aforementioned phenomena enhance overall circuit efficiency enable tank voltage be increased in reverse mode, which cannot achieved with electrical equipment isolation...

A novel single-switch single-stage high power factor LED driver is proposed by integrating a flyback converter, buck–boost converter and current balance circuit. Only an active switch corresponding control circuit are used. The can be adjusted the scheme of pulse–width modulation (PWM). performs function correction (PFC), which operated at discontinuous-current mode (DCM) to achieve unity low total harmonic distortion (THDi). regulates dc-link voltage obtain smooth dc for LED....

This study proposed an isolated three-port bidirectional resonant converter that combines 2C3L and 2C2L circuits for application in power dispatching. The improves the dispatch capabilities of conventional converters utilizes different to complete energy charge–discharge through ports voltage levels. By modulating frequency alone, regulation electrical isolation were achieved among three with involves use resonance techniques enable switch perform soft switching during transmissions,...

An isolated type bidirectional resonant converter is presented in this paper. Using a dual active bridge as the main topology and integrating symmetric mechanism, developed features an with power conversion electrical isolation capabilities to ensure working security stability. The application of scheme enables control range input output voltages be widened achieves soft switching during conversion. A design process covering all bases exhibited work. With digital signal processor (DSP)...

This paper presents the development of a bidirectional converter for AC grid and DC bus. The adopts full-bridge structure utilizes average current control sine pulse width modulation techniques power factor correction inverter design. system's core is based on chip, combined with technology. By sensing input output voltages, period calculated to enhance compensation speed overall loop. enables exhibit high stable voltage capabilities, while functioning as an enhanced system reliability in...

A systematic procedure for determining the optimal location and discrete sizes of compensation shunt capacitors distribution systems by considering mutual coupling among phase conductors grounding effect has been developed. The equivalent circuit models line segments are derived so that will be included in computer simulation. MINOS package is applied to solve highly nonlinear objective function subjected voltage constraint capacitor size. sample feeder used simulation verify proposed...

This paper presents a single-stage three-port isolated power converter that enables energy conversion among renewable port, battery storage and DC grid port. The proposed integrates an interleaved synchronous rectifier boost circuit bidirectional full-bridge into architecture, which features four modes, allowing adjustment for both the ports when is supplied by It also functionality allows port to provide through thereby providing uninterrupted supply functionality. uses switches two...

This paper describes a solar energy power regulation system using detectors.The developed comprises cubic detector, DC-DC converter, three-phase inverter, and single-chip control module.The detector is composed of five facets installed with front, rear, left, right, horizontal photo sensors.By detecting coming from different orientations, the orientation can be optimized based on geometric transformation principle, which evaluates relationship between photo-power for each sensor.Because...

This study realizes a high power-factor lithium battery charger which integrates bridgeless boost-type power-factor-correction converter and full bridge LLC resonant circuit to constitute single-stage topology. The developed is featured with power-factor, current voltage stresses reduction on components by introducing pair of converters using series-input parallel-output mechanism. has the following advantages: (a) structure reducing losses; (b) technique usage furnishing power switches...

Abstract The objective of this paper is to derive a systematic algorithm decide the optimal location and size shunt capacitors filters for distribution systems with harmonic distortion. In paper, problem reactive power compensation first formulated as nonlinear programming minimization real loss capacitor cost under voltage constraint locations sizes capacitors. load flow then applied solve total distortion factor (HDF). Finally, tuning frequency single‐tuned filter capacity ratings...