An analysis and design of a star delta transformer in series with active power filter for current harmonies reduction

Izhar, Mohd Azri Mohd; Hadzer, C.M.; Masri, Syafrudin; Taib, Soib; Idris, Syed

doi:10.1109/pecon.2004.1461623

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…Active filters reduce the higher harmonics in electrical network by generating those harmonics which are consumed by nonlinear receivers (karVe 2016, izHar et al 2004, YaraHMadi et al 2013. For example, if the receiver needs the fifth and seventh harmonics the active filter generates them what results in more sinusoidal shape of the network current.…”

Section: Active Filtersmentioning

confidence: 99%

Analysis of Harmonics Reduction Method Selection for Transformer Substation

Racewicz¹,

Rokicki²

2019

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The article presents an investigation of the harmonic level and its possible reduction methods for one of the Michelin factory transformer substation. The substation electrical network consists of two transformers (1.6 MVA and 2.0 MVA) supplying a production line composed of several electrical equipment based on DC and AC motors. In order to investigate the harmonics level and its influence on the substation operation the measurements of the current and the load factor of the powered machines as well as the coefficients THDu, THDi, Du and Di have been performed using the 3-phase energy quality analyzer Fluke 435II and the network parameter recorder PEL103. Basing on the measurements data the four harmonics reduction methods (passive filters, active filters, 12-pulse rectifier and the Active Front End system) have been proposed and studied. For this purpose the substation electrical network has been modelled using Emerson Harmonics Estymator software. Furthermore, in order to choose the optimal solution the financial analysis of the potential investments has been performed.

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Section: Active Filtersmentioning

confidence: 99%