Modelling of Output Power Response for Switched Damping Electromagnetic Energy Harvester
| Autor: | A. Rashid, Abdul Rashid Abdul Aziz, Beng Lee Ooi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Power loss Electric potential energy 010401 analytical chemistry Bandwidth (signal processing) Frequency shift 02 engineering and technology Large range 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Vibration Electricity generation Control theory Electromagnetic energy harvester 0210 nano-technology |
| Zdroj: | 2016 7th International Conference on Intelligent Systems, Modelling and Simulation (ISMS). |
| DOI: | 10.1109/isms.2016.19 |
| Popis: | The scavenging of electrical energy from surrounding environment has a number of attractions, and vibration energy is seen as one of the most potential sources. Switched damping is a method to improve the operational bandwidth of an electromagnetic energy harvester by alternatively switching the values of electrical damping coefficients of the device at different quadrants during oscillation. From the literature, a reasonably large range of resonant frequency shift can be achieved by this method, yet none of the works had demonstrated the model of the output power response. This paper presents the numerical modelling of the output power response of a damping switching device. The predictive results indicate that for a largely deviated effective loads system, significant power loss will be incurred to the output, which reduces the effectiveness of the system. Hence, this reduce the merit of the device even with a large achievable range of shifted resonant frequencies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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