Sökning: "Vibration energy harvesting"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Vibration energy harvesting.

  1. 1. Evaluating the performance of a vibration energy harvester under complex excitation

    Master-uppsats, Mittuniversitetet/Institutionen för elektronikkonstruktion

    Författare :Zhiqiang Chen; [2020]
    Nyckelord :Vibration energy harvesting; harvester; closed-loop control; resonant frequency; prediction;

    Sammanfattning : In recent years, vibration energy harvesting has become a research hotspot in the field of energy harvesting. Energy harvester output power is the most important parameter in a vibration energy harvesting system. Assessing the harvester output power in different vibration environments is an important study issue to study. LÄS MER

  2. 2. Automotive Energy Harvesting

    Master-uppsats, Mittuniversitetet/Institutionen för elektronikkonstruktion

    Författare :Petter Haugen; [2019]
    Nyckelord :Vibration measurement; Energy Harvesting; Piezoelectrics; On-Board Unit;

    Sammanfattning : Vibration measurements conducted in three vehicles windshields are used to determine frequency content in the windshield of moving vehicles. A piezoelectric energy harvester is modeled, and used in simulations to determine output voltage and power with measured acceleration signal as input.  .. LÄS MER

  3. 3. Analytical and Numerical Study of a Passive Self-Tuning Resonator

    Master-uppsats, Lunds universitet/Mekanik

    Författare :Majeed al Tmizi; [2018]
    Nyckelord :Energy harvesting; mechanical vibrations; passive self-tuning; beam resonators; string resonators; sliding proof-mass; MEMS; actuators; Technology and Engineering;

    Sammanfattning : Energy harvesting, from ambient vibrations, can be a very effective method for solving the problem with powering electronics were the need for constant power or regular battery replacements is a trouble or an inconvenience. But, since all energy harvesters, using mechanical vibrations, need to operate in resonance in order to generate maximal electrical output, and ambient vibrations usually do not have a constant vibration frequency, this results in the need for efficient self-tuning systems. LÄS MER

  4. 4. A Study on Interface Circuits for Piezoelectric Energy Harvesting

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Tang Honghao; [2018]
    Nyckelord :interface circuit; PEH system; switch;

    Sammanfattning : A piezoelectric energy harvesting (PEH) system can harvest electrical energy from ambient vibration energy. In a PEH system, the interface rectifier circuit is critical because it converts AC from the output of piezoelectric harvester to DC that can power the load. LÄS MER

  5. 5. Energy Harvesting for Electronic Systems

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Oscar Ridell; Pål Nilsson; [2017]
    Nyckelord :Energy Harvesting; Energy Scavenging; Photovoltaic cells; Electromagnetics; Piezoelectric element; Radiofrequency; Thermoelectric element; Science General; Technology and Engineering;

    Sammanfattning : Energy harvesting enables products to become more self-sufficient of power and offers the possibility to avoid battery exchange and power cables. The performance and applicability of the most promising or popular small scale energy harvesting technologies are investigated in this thesis. LÄS MER