Ragini Malviya

Work place: Department of Electrical and Electronics, NIET, Greater Noida, India

E-mail: ragini.malviya@gmail.com


Research Interests: Engineering


Ragini Malviya received B.Tech degree from U.P Technical University in 2006 and perusing M.Tech from RTU in Control and Instrumentation Department. Presently she is working as an Assistant Professor (EN) in Noida Institute of Engineering, Greater Noida, India. She has presented many research papers in International Conferences and her research interests include FACTS controlling device, power system and power electronics.

Author Articles
Modified Approach for Harmonic Reduction in Transmission System Using 48-pulse UPFC Employing Series Zig-Zag Primary and Y-Y Secondary Transformer

By Ragini Malviya Rakesh Kumar Saxena

DOI: https://doi.org/10.5815/ijisa.2013.11.08, Pub. Date: 8 Oct. 2013

In this paper THD (Total Harmonic Distortion) is analysed and compared by using UPFC in a multi-line transmission system of 500 KV having 5-buses in two different arrangements. The UPFC converters are arranged as a Diode Clamped multilevel Converter (DCMLC) that leads to the cost reduction as compared with other multi-level converters. The comparison has been done by both series zig-zag/2Y-2Δ and series zig-zag/4Y transformer configuration for 48-pulses GTO based diode clamped converter. The THD is reduced to 42.59% and 58.82% of input waveform at bus B2 by using series zig-zag/4Y transformer configuration. This transformer converter configuration also reduces the difficulty of designing the transformer winding ratio. For calculation of THD, FFT analysis is carried out using MATLAB.

[...] Read more.
Other Articles