التفاصيل البيبلوغرافية
| العنوان: |
A Power Factor Corrected SMPS with Improved Power Quality for Welding Applications. |
| المؤلفون: |
Narula, Swati, Singh, Bhim, Bhuvaneswari, G., Pandey, Rahul |
| المصدر: |
International Journal of Emerging Electric Power Systems; Apr2015, Vol. 16 Issue 2, p181-193, 13p, 3 Diagrams, 2 Charts, 6 Graphs |
| مصطلحات موضوعية: |
ELECTRIC power factor, SWITCHING power supplies, POWER supply quality, ELECTRIC welding, POWER resources, LOW voltage systems |
| مستخلص: |
This paper presents the analysis, design and implementation of a power factor corrected Arc Welding Power Supply (AWPS) with a boost converter at the front end and three full-bridge (FB) converters connected in parallel at the load end. The modular arrangement of the FB converters offers several meritorious features like usage of power devices with comparatively lower voltage and current ratings, ease of power expandability, easy maintenance, etc. The boost converter operates in continuous conduction mode minimizing the input current ripple and leading to the lowest RMS current thereby improving the input power quality. Individual control loops are designed for each power stage. A dual loop control scheme is employed to incorporate over-current limit on the proposed AWPS which ensures excellent weld bead quality. The proposed AWPS is implemented to validate its performance over a wide range of line/load variations. Test results confirm its fast parametrical response to load and source voltage variations and over-current protection leading to improved welding performance and weld bead quality. The system is found to perform extremely well with very low input current THD and unity power factor, adhering to international power quality norms. [ABSTRACT FROM AUTHOR] |
|
Copyright of International Journal of Emerging Electric Power Systems is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
