System Identification and Resonant Control of Thermoacoustic Engines for Robust Solar Power
It was found that thermoacoustic solar-power generators with resonant control are more powerful than passive ones. To continue the work, this paper focuses on the synthesis of robustly resonant controllers that guarantee single-mode resonance not only in steady states, but also in transient states when modelling uncertainties happen and working temperature temporally varies. Here the control synthesis is based on the loop shifting and the frequency-domain identification in advance thereof. Frequency-domain identification is performed to modify the mathematical modelling and to identify the most powerful mode, so that the DSP-based feedback controller can online pitch the engine to the most powerful resonant-frequency robustly and accurately. Moreover, this paper develops two control tools, the higher-order van-der-Pol oscillator and the principle of Dynamical Equilibrium, to assist in system identification and feedback synthesis, respectively.
Year of publication: |
2015
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Authors: | Hong, Boe-Shong ; Lin, Tsu-Yu |
Published in: |
Energies. - MDPI, Open Access Journal, ISSN 1996-1073. - Vol. 8.2015, 5, p. 4138-4159
|
Publisher: |
MDPI, Open Access Journal |
Subject: | thermoacoustic engines | dynamical equilibrium | resonant control | limit-cycle generators |
Saved in:
freely available
Extent: | application/pdf text/html |
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Type of publication: | Article |
Classification: | Q - Agricultural and Natural Resource Economics ; Q0 - Agricultural and Natural Resource Economics. General ; Q4 - Energy ; Q40 - Energy. General ; Q41 - Demand and Supply ; Q42 - Alternative Energy Sources ; Q43 - Energy and the Macroeconomy ; q47 ; Q48 - Government Policy ; Q49 - Energy. Other |
Source: |
Persistent link: https://www.econbiz.de/10011275210
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