Simulation Analysis of Interface Circuits for Piezoelectric Energy Harvesting with Damped Sinusoidal Signals and Random Signals

Abstract

Keywords: piezoelectric energy harvesting, interface circuit, damped sinusoidal signal, random signal, SLPSCopyright © 2015 Universitas Ahmad Dahlan. All rights reserved. IntroductionMicro-energy harvesting has been widely studied because of the development of wireless sensor networks. Various energy harvesting techniques, such as solar energy, thermal energy, and vibration energy have been investigated to eliminate dependence on batteries or wires [1][2][3][4][5]. The electromagnetic, electrostatic, and piezoelectric transition mechanisms are the main methods for harvesting vibration energy. In particular, piezoelectric vibration energy harvesting has received significant attention for its high power density, simple structure, and ability to operate without producing pollution [6].A piezoelectric energy harvesting system mainly consists of a mechanical structure and interface circuits. With regard to the mechanical structures in such systems, cantilever beams with patches of piezoelectric materials have been extensively investigated [7,8]. The performance of the energy generated by piezoelectric elements with harmonic excitations has been studied widely. Recently, flow-induced piezoelectric energy harvesting has gained much attention. Some of the trends in piezoelectric energy harvesting are multi-directional wideband technology [9] and flow-induced or impact-induced piezoelectric energy harvesting [10]. In these systems, the electricity generated by piezoelectric cantilever beams is not sinusoidal. Meanwhile, the mechanical structures for collecting multi-direction energy and flow-induced piezoelectric energy have been widely investigated. Experiments on many mechanical structures under different conditions have been performed to evaluate the performance of different structures. With regard to interface circuits, the standard interface circuit, series synchronized switch harvesting interface circuit (S-SSHI), parallel synchronized switch harvesting interface circuit (P-SSHI), and synchronized charge extraction interface circuit (SCE) have been analyzed in detail, and all involve standard sinusoidal equivalent sources [11][12][13]. However, the performance of different interface circuits with a non-standard sinusoidal equivalent source has been minimally investigated. Many experiments have been performed in ideal laboratory environments where piezoelectric elements were subjected to harmonic excitations; thus, numerous analyses involving sinusoidal signals have been made. An exciter

Estimation of Optimum Number of Poles for Random Signal by Yule-Walker Method

“…In addition in 2014 ranging system has been studied for pseudorandom continuous wave signal [11]. Moreover in 2015 simulation analysis has been done for interface circuits for piezoelectric energy harvesting for random signal as well [12]. Afterwards in 2015 an analysis has been completed to determination of spectrum for Additive White Gaussian Noise (AWGN) by minimum set of Yule-Walker Equations in comparison with least mean square method for the same signal [13].…”

Recognition of Fission Signals Based on Wavelet Analysis and Neural Network

“…Wavelet transform is a processing and analyzing method for signals of multi-scales with good time-frequency localized features [9][10][11], so it is very suitable for processing nuclear signals of fission neutrons with transient and time-varying characteristics. Usually, wavelet decomposition only decomposes low-frequency coefficients into two parts, while wavelet packet analysis further decomposes frequency of wavelet space based on binary system manner which makes wavelet packet overcome the problem of high time resolution but low frequency As it could be seen from the wavelet packet decomposition structure diagram, wavelet packet decomposition compartmentalizes frequency-band to multi-levels and further decomposes high-frequency which is no subsection in wavelet decomposition.…”

Accuracy and multi domain piezoelectric power harvesting model using VHDL-AMS and SPICE

“…It limits the amount of load current (i LOAD ) and, consequently, the average extracted power (<P LOAD >). In order to improved it, some circuits have been proposed [7], [8], as P-SSHI and SECE. P-SSHI (Fig.…”