Volume 14, Issue 1 (March 2018)                   IJEEE 2018, 14(1): 59-68 | Back to browse issues page

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Rezaie H, Rastegar H, Pichan M. A New Pulsating Power Elimination Method for Single-Phase PWM AC/DC Converters with Minimum Voltage and Current Stress. IJEEE 2018; 14 (1) :59-68
URL: http://ijeee.iust.ac.ir/article-1-1173-en.html
A New Pulsating Power Elimination Method for Single-Phase PWM AC/DC Converters with Minimum Voltage and Current Stress
H. Rezaie , H. Rastegar , M. Pichan
Abstract:   (5130 Views)
An inherent problem of single-phase rectifiers is the existence of a pulsating portion in the input power, which pulsates at twice the grid frequency. If this pulsating power is transferred to the DC-link, it causes a significant amount of second-order harmonic at the output voltage. Since in many applications, such a high level of DC oscillation is not acceptable, so the pulsating power must be effectively filtered. A convenient solution to eliminate the output voltage oscillations is to use a capacitor with a relatively high capacity at the rectifier output. Due to the fact that the high capacity capacitors for this application usually have a short lifetime and occupy a lot of space, this solution cannot be considered as a proper one. In this paper, a new active method with the minimum of current and voltage stress is proposed to effectively eliminate the pulsating power and significantly reduce the required capacitance of the output filter. The proposed method is able to reduce the volume of the converter and increase its reliability and power density. The validity and effectiveness of the proposed method are confirmed by extensive simulations in the MATLAB/Simulink.
Keywords: Single Phase Systems , Single Phase PWM Rectifier , Active Power Decoupling , Active Filter , Pulsating Power , Capacitance Reduction , Current Stress , Voltage Stress
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Type of Study: Research Paper | Subject: Converters
Received: 2017/10/10 | Revised: 2018/03/02 | Accepted: 2018/01/20
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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.