Abstract
In this project, a 18 pulse rectifier has been designed for high voltage application. Three 3 -phase are obtained from a single three phase source using zig-zag inter connection of conventional single phase transformer. Thus from the three 3-phase system displaced by 20˚, (obtained using zig - zag connection) 3 six pulse rectifier are obtained that are cascaded to realize a eighteen pulse rectifier. Phase shift of 0˚ and 20˚ are made using star and zig -zag connection and thus finally the addition of relevant line voltage. We can also bring down THD of it up to 5.47%
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More From: International Journal of Advance Engineering and Research Development
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