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Analysis shows that A-SVPWM improves inverter reliability in photovoltaic systems, highlighting thermal stress and switching losses.
This paper presents a comprehensive analysis and design of an advanced modulation technique for improving the reliability of multilevel inverters (MLIs) in grid-connected photovoltaic (PV) power conversion systems. The proposed Adaptive Space Vector Pulse Width Modulation (A-SVPWM) technique addresses critical reliability concerns including thermal stress management, switching loss reduction, and power device lifetime enhancement. Through theoretical analysis and simulation studies, this work demonstrates significant improvements in inverter reliability metrics while maintaining superior power quality and grid compatibility. The proposed technique achieves a 23% reduction in junction temperature variations and 18% decrease in switching losses compared to conventional SPWM methods, resulting in an estimated 35% improvement in power device lifetime.
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G Raghavendran. (2020) studied this question.
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