Power quality improvement in three-phase telecommunication power supply system

Singh, Shikha ; Bhuvaneswari, Gurumoorthy ; Singh, Bhim (2015) Power quality improvement in three-phase telecommunication power supply system Electric Power Components and Systems, 43 (19). pp. 2105-2115. ISSN 1532-5008

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Official URL: http://www.tandfonline.com/doi/full/10.1080/153250...

Related URL: http://dx.doi.org/10.1080/15325008.2015.1077486


This article proposes power quality improvement in a three-phase AC mains-fed telecommunication power supply by using an improved power quality converter. Conventional telecommunication tower power supplies suffer from power quality problems, such as high input current harmonic distortion, low power factor, and voltage distortions at the utility interface. To mitigate these problems, modern AC-DC converters with power factor correction circuits are used at the utility interface. An integrated boost converter is used as a power factor corrector with an isolated DC-DC converter at the load end to form the proposed telecommunication power supply. The power factor correction converter mitigates the harmonic contents of the AC mains current and improves the power factor, whereas the isolated converter provides regulated load voltage and isolation. Voltage control is used for regulating the DC voltage of the isolated converter, while the power factor correction integrated boost converter employs a current control loop to shape input current to sinusoidal in-phase with voltage. The design, modeling, and simulation results are presented to demonstrate the effectiveness of the power supply at various AC mains voltages and loads. A prototype of the front-end converter is developed, and recorded test results are presented here to validate the simulated performance.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Group.
Keywords:Integrated Boost Converter; Power Quality; Total Harmonic Distortion; Power Factor; DC-DC Converter; Telecommunication Power Supply; Power Factor Correction; High-Frequency Transformer; Voltage Control; Input Current Ripple
ID Code:106689
Deposited On:07 Aug 2017 12:12
Last Modified:07 Aug 2017 12:12

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