Design and control LCL-filter-based three-phase active rectifier

Abstract: This paper proposes a step-by-step procedure for designing the LCL filter of a front-end three-phase active rectifier. The primary goal is to reduce the switching frequency ripple at a reasonable cost, while at the same time achieving a high-performance front-end rectifier (as characterized by a rapid dynamic response and good stability margin). An example LCL filter design is report…

Analisa penanggulangan THD dengan filter pasif pada sistem kelistrikan di RSU…

Sistem kelistrikan RSUP Sanglah terdiri dari lima buah MDP (Main Distribution Panel) yang melayani begitu banyak beban yang menuntut kualitas tegangan dan arus yang baik demi kelancaran pelayanan kesehatan. Dari hasil simulasi THD (Total Harmonic Distortion) pada beban listrik di RSUP Sanglah dengan simulink MATLAB 7.04, untuk THDv sudah sesuai standar sedangkan untuk THDi pada beberapa MDP tid…

Power system harmonics as useful energy sources

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Vol. 6

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Design analysis of low-pass LC passive filter in single-phase grid-connected …

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Vol. 1

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Software predicts harmonic problem and simulates alternative solution

Many articles have been written about the growing harmonic problems in present day power systems. The topics range from the fundamentals of harmonics to specific case studies showing harmonic cause and effect relationships. The articles follow a common theme: they describe harmonic problems and recommend possible solutions after the problems occurs. This article describes how computer simulatio…

Power supply quality improvment: harmonic measurement and simulation

This paper presents the harmonic measurement and simulation in a power distribution network and then gives suggestion of filter installation to improve harmonic distortion. The specific case study has been conducted at Faculty of Electrical Engineering, UTM building where nonlinear loads such as computers and fluorescent lamps which produce the harmonics are connected. Measurements are conducte…

Harmonic suppression and simulation based on matlab

An active power filter (APF)based on digital signal processor (DSP) and complicated programming logic component (CPLD) is designed in this paper. Solft and hard wares are introduced and the simulation experiment to compensate the reactive power and harmonics in three-phase four-wires system is done. By using Matlab. simulation model is build for the device. The result shows that this model can …

Modeling and simulation of 6-Pulse rectifier drives with impacts to input cur…

This paper describes the measurements and simulations of harmonics from six pulse adjustable speed drives in Pulp and paper Industry. Harmonic analysis of the distribution system is essential to study the behavior of equipments connected in the non-sinusoidal system environment for designing and optimal location of filters. The simulations are done in Mat lab by sim-link circuit simulator. Vali…

Modeling the single tuned passive harmonic filter based on the fractional cal…

In this paper, the fractional characteristics of capacitor and inductor are considered, and the single tuned passive harmonic filter is modeled and analyzed based on the fractional calculus. The fractional-order mathematical model of the single tuned passive harmonic filter is given. The difference between the integer model and the fractional model is revealed. In the fractional model the reson…

Approach of optimal tuning frequency in single tuned harmonic filter

Filter detuning strongly affects the filter's size and operating performance. Partial resonance is recommended to raise the filtering efficiency of a single-tuned filter at the worst point in the detuning range. This paper presents a new way to obtain the optimal tuning frequency of a single-tuned harmonic filter in order to control harmonic currents to the allowable value with a minimum filter…