منابع مشابه
Harmonic Elimination of 25 kV AC Electric Railways Utilizing a New Hybrid Filter Structure
Thyristor rectifiers are widely used in electric railways in order to control the speed. As a consequence of their usage in addition to substantial input lead current, an enormous amount of harmonics is injected into the grid. To avoid such harmonics as well as reactive power compensation, reactive power hybrid filters consisting of active and passive filters are utilized. Regarding different p...
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With the rapid developments and use of non linear loads, the controlling over the harmonic current to get and maintain power quality is becoming more important. Active power filters has been used to compensate the harmonic pollution in our power system. This paper presents a efficient model to compensate the current harmonics using the inverter based Shunt Active Power Filter, Passive Power Fil...
متن کاملHybrid Model of Multilevel Inverter with Selected Harmonic Elimination
Multi-level inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. In this paper, the most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-clamped (flying capacitor), and cascaded multi cell with separate dc sources. In this paper, we proposed a new multi-level inverter topology based ...
متن کاملharmonic limits using wide - spectrum passive harmonic filter
T O ADDRESS CONCERNS ASSOCIATED WITH ELECTRICAL POWER system harmonic distortion on ships and offshore oil rigs and platforms, marine regulating bodies have introduced strict new harmonic standards. These standards define the acceptable level of harmonic voltage distortion allowed on the vessels they certify. High-harmonic distortion levels are appearing as a result of the increased use of powe...
متن کاملHarmonic Analysis Using Adaptive Filter Algorithm
-This paper presents a software filter for fast estimation of harmonic and frequency components of a power system voltage or current signal corrupted by noise with low signal to noise ratio (SNR). This new algorithm is based on an objective function often used in independent component analysis for robust tracking under impulse noise conditions. Instead of choosing the step size η and the parame...
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ژورنال
عنوان ژورنال: IJIREEICE
سال: 2018
ISSN: 2321-5526,2321-2004
DOI: 10.17148/ijireeice.2018.685