Transformation of oscillations of an unstable system in an energy harvester

S. V. Borzunov

Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, Tome 29 (2023) no. 2, pp. 7-18

Résumé

In this work, a simple model of energy harvester transforming the energy of unstable mechanical vibrations into useful electric energy is proposed. The mechanical part of the system is presented in the form of an inverted pendulum. The electric part consists of a converter of mechanical energy based on a direct piezoelectric effect, and a payload. The dynamics of the system is considered in the linearized production, the areas of stability are determined, various dynamics modes in the parameter space are identified. It was established that the stabilizing pendulum of management based on the principles of feedback allows you to transfer the system into a stable mode of functioning. The optimal characteristics of the system that meets maximum power were found.

Détail

Keywords: energy harvester, inverted pendulum, stability of the system.

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