Comprehensive dynamic and stability analysis of electrostatic Vibration Energy Harvester (E-VEH)

Dimitri Galayko (1) , Raphaël Guillemet , Andrii Dudka (1) , Philippe Basset

1 CIAN - Circuits Intégrés Numériques et Analogiques

This paper reports on an investigation of dynamic behavior of an electrostatic Vibration Energy Harvester (e-VEH) which uses gap-closing capacitive transducers and operates in a constant-charge mode. This work provides a deep insight into stability issues of a e-VEH investigating four dynamic modes, among which only one corresponds to a regular, stable and desirable operation mode needed for the energy conversion. The three other modes represent instable behavior. Each one corresponds to a particular range of external acceleration, and in none of these modes the e-VEH behaves similarly to an ideal constant-voltage biased transducer associated with a resonator. This paper describes a modeling experiment allowing a demonstration of the four operation modes, and proposes theoretical considerations for their quantitative description.

Domaines: Informatique [cs]

Dimitri Galayko, Raphaël Guillemet, Andrii Dudka, Philippe Basset. Comprehensive dynamic and stability analysis of electrostatic Vibration Energy Harvester (E-VEH). Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International, Jun 2011, Beijing, China. pp.2382-2385, ⟨10.1109/TRANSDUCERS.2011.5969592⟩. ⟨hal-01286044⟩