Methods for Estimation of Voltage Harmonic Components

Radil, T; Ramos, Pedro M.

doi:10.5772/14195

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Total Harmonic Distortion (THD) and its derivatives are generally used in the algorithms of electrical network analyzers to assess the quality level of the distributed electricity [9].…”

Section: Harmonic Distortion Ratementioning

confidence: 99%

Behavior of Harmonic Current Rates Generated by Linear, Nonlinear and Mixed Loads in Niamey Services

Abdourahimoun¹

2017

IJEPE

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Abstract:Since the discovery of electric energy, several improvements have been made by scientists, so that, suppliers can permanently guarantee a quality power to customers. In addition, the introduction of high-tech equipments in all sectors of activity has increased the level of harmonic disturbances in electricity distribution networks. Thus, power systems are subjected to harmonic disturbances injected by these loads and entail effects on the equipments of the distribution network itself and on that of the customers connected there to. In Niger, thereis a constant increase in these types of loads, although there is no complete renewal of energy consuming loads (incandescent bulbs, Cathode Ray Tube (CRT) televisions, fans, etc.). It is necessary to study the behavior of the harmonic rate generated by these loads connected to the distribution network in order to anticipate on the consequences [1]. This article presents a study on the behavior of harmonic distortion rate in current generated by linear, nonlinear and mixed loads in offices at Niamey, Niger. Using an electric analyzer (CA8220), a study on the behavior of harmonic distortion rate in current generated by linear, nonlinear and mixed appliances was conducted. To do this, it studied the variation of the harmonic content by acting on polluting loads (a compressor and an air conditioner), very polluting loads (a computer and an ultrasound machine) and a pure load (a water heater). The results show that a combined and simultaneous use of appliances with nonlinear and linear loads (mixed loads) makes it possible to attenuate the overall harmonic rate, compared to a use of the nonlinear loads alone in the network.

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“…Total Harmonic Distortion (THD) and its derivatives are generally used in the algorithms of electrical network analyzers to assess the quality level of the distributed electricity [9].…”

Section: Harmonic Distortion Ratementioning

confidence: 99%

Behavior of Harmonic Current Rates Generated by Linear, Nonlinear and Mixed Loads in Niamey Services

Abdourahimoun¹

2017

IJEPE

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Frequency and magnitude estimation in voltage unbalanced power systems

Gillich

Mituletu

Gillich

et al. 2017

2017 10th International Symposium on Advanced Topics in Electrical Engineering (ATEE)

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Investigation of harmonic estimation using imperalist competitive algorithm method

Ertugrul

Güney

2015

2015 23nd Signal Processing and Communications Applications Conference (SIU)

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Özetçe-Sondönemde harmonik kestiriminde geleneksel olarak kullanılan Fourier Dönüşümü tabanlı algoritmalar yerine alternatif bir takım yöntem ve algoritmalar kullanılmaya başlanmıştır. Çünkü, Fourier Dönüşümü tabanlı algoritmaların mevcut kısıtlamaları nedeniyle harmonik kesitiriminde bazı problemlerin çözümü konusunda alternatif çözümlere başvurulması kaçınılmaz olmuştur. Bu çalışmada incelenen emperyalist yarışmacı algoritma (Imperalist Competitive Algorithm-ICA) sosyal tabanlı sezgisel bir optimizasyon algoritmasıdır. Optimizasyon alanında daha yararlı olabilmesi amacıyla, doğanın seçtiği evrimsel yaklaşımların avantajları genetik algoritmalarda ve türevlerinde önerilmiştir. Hayvanların davranışları; yapılan çalışmalar sonucu, parçacık sürü algoritmaları ve karınca koloni algoritmalarıyla sonuçlanmıştır. Hayvan davranışları, son zamanlarda ise insanların sosyal davranışlarını simüle etmekte ve mühendislikte bazı problemlerin çözümünde yol göstermiştir. AnahtarKelimeler-emperyalist yarışmacı,koloni, imparatorluk, harmonik. Abstract-Recently, some new methods and algorithms have been started to use as an alternative for harmonic estimation instead of Fourier Transform based traditional algorithms. Because, it is inevitable to look for alternative solutions for harmonic estimation problems due to the existing limitations of Fourier Transform based algorithms. The Imperialist Competitive Algorithm (ICA) investigated in this study is a social based intuitive optimization algorithm.The advantages of the evolutionary approximations selected by the nature have been suggested in genetic algorithms and its derivations in order to be useful in optimization area. The animal behaviors have been concluded as partial swarm and ant colony optimization algorithms. Recently, the animal behaviors simulate the human social behaviors and guide us to solve some engineering problems.

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Methods for Estimation of Voltage Harmonic Components

Cited by 5 publications

References 8 publications

Behavior of Harmonic Current Rates Generated by Linear, Nonlinear and Mixed Loads in Niamey Services

Behavior of Harmonic Current Rates Generated by Linear, Nonlinear and Mixed Loads in Niamey Services

Frequency and magnitude estimation in voltage unbalanced power systems

Investigation of harmonic estimation using imperalist competitive algorithm method

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