Е-Публикации
Технически университет - София

Abstract: This paper presents a comparative analysis of two resonant rectifier topologies-Parallel Synchronized Switch Harvesting on Inductor (P-SSHI) and Series SSHI (S-SSHI)for low-frequency wind energy harvesting using piezoelectric generators. Aimed at powering wireless sensor networks, the study addresses the challenge of efficient energy conversion from vibrations typically below 100 Hz. Simulations were conducted across varying load conditions to assess power output and conversion efficiency. Results show that P-SSHI performs better under low load resistances due to lower energy losses, while S-SSHI achieves higher efficiency at greater resistances by maintaining effective resonance. Both topologies significantly outperform conventional rectifiers, confirming the effectiveness of resonant techniques for micropower piezoelectric wind energy harvesting.

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