Operator-Based Triboelectric Nanogenerator Power Management and Output Voltage Control
Chengyao Liu1, Ryusei Shimane1, Mingcong Deng1
1Department of Electrical and Electronic Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Tokyo, Japan.
Micromachines
|September 28, 2024
Summary
This study introduces an operator-based voltage control for triboelectric nanogenerators (TENGs), enabling stable output voltage without extra compensators. The method enhances energy harvesting and management systems.
Area of Science:
- Electrical Engineering
- Materials Science
- Energy Harvesting
Background:
- Triboelectric nanogenerators (TENGs) offer a promising avenue for energy harvesting due to their ability to convert mechanical energy into electrical energy.
- However, TENGs exhibit high-voltage, low-current pulsating outputs, posing challenges for efficient power management and stable voltage delivery.
- Existing control methods often require complex compensators, increasing system complexity and cost.
Purpose of the Study:
- To develop and validate an operator-based voltage control strategy for TENGs.
- To design a simulation-capable circuit model for TENGs, including essential electrical characteristics.
- To establish a robust TENG power management system capable of stable voltage output under varying conditions.
Main Methods:
- A comprehensive circuit model for TENGs was developed, incorporating open-circuit voltage and variable capacitance.
- A storage capacitor switching model was designed to manage the pulsating energy output from TENGs.
- An operator theory-based control strategy was implemented, integrated with a buck converter and unified control, to ensure voltage stability without compensators.
Main Results:
- The developed TENG model accurately simulated system behavior with rectifier bridges and capacitive loads.
- The proposed control strategy successfully achieved steady output voltage under varying load conditions, demonstrating uncertainty suppression.
- Simulation results confirmed the feasibility and effectiveness of the TENG system and its control strategy.
Conclusions:
- The operator-based voltage control method provides a robust and efficient solution for TENG energy harvesting.
- The integrated power management system simplifies TENG applications by eliminating the need for external compensators.
- This research offers a significant advancement for optimizing TENG performance and practical implementation.
Keywords:
circuit modeloperator theorypower managementrobust right coprime factorizationtriboelectric nanogeneratorMore Related Videos
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