Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

A shunt active power filter for a medium-voltage 12-pulse current source converter using open loop control compensation

Hamad, Mostafa S. and Masoud, Mahmoud I. and Ahmed, Khaled H. and Williams, Barry W. (2014) A shunt active power filter for a medium-voltage 12-pulse current source converter using open loop control compensation. IEEE Transactions on Industrial Electronics, 61 (11). pp. 5840-5850. ISSN 0278-0046

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

AC-side compensation for current source converters using a shunt active power filter (SAPF) is affected by delays introduced into the reference signals and/or the actual injected current. The delays should be identified and compensated to eliminate distortion from the supply current extracted from the point of common coupling, such that the total harmonic distortion complies with standards. An improved distortion factor is achieved if the delay for each harmonic order is considered individually. This paper introduces an open-loop control strategy for the SAPF, which is capable of mitigating specific and predetermined harmonic orders and consequently achieves low total harmonic distortion. The delays are minimized or eliminated when extracting the reference current and controlling the filter current. The control technique is applied on a medium-voltage asymmetrically controlled 12-pulse ac to dc current source converter, which follows a specific power locus with the SAPF connected via taps on the star connected secondary winding of the front end transformer, to compensate the mains current dominant harmonics (5th, 7th, 11th, and 13th). Medium voltage simulation results are verified experimentally using a scaled prototype.