Abstract

With much advancement in the FACTS technologies STATCOM with multi-level inverter provides reactive compensation with less harmonics injection in the grid system. The voltage stress on each power electronic switch is also reduced as the voltage across each switch is low, in turn reduces the switching losses. In this paper a cascaded multi-level inverter with STATCOM application of 2m+1 levels controlling through Space Vector PWM was considered. Switch fault analysis is carried out by detecting and mitigating the fault with a bypass power electronic switch. Design method and parametric analysis is carried out in MATLAB simulation and results arevalidated.

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