Randomized modulation of power converters via Markov chains
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Stankovic randomized.pdf
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579.99 KB
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Author(s)
Stankovic, Aleksandar M.
Verghese, George C.
Perreault, David J.
Date Issued
January 1997
Journal
IEEE Transactions on Control Systems Technology
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Stankovic, A.M., G.C. Verghese, and D.J. Perreault. “Randomized Modulation of Power Converters via Markov Chains.” IEEE Trans. Contr. Syst. Technol. 5, no. 1 (1997): 61–73. © Copyright 1997 IEEE.
Version
Final published version
Abstract
Randomized modulation of switching in power converters holds promise for reducing filtering requirements and reducing acoustic noise in motor drive applications. This paper is devoted to issues in analysis and synthesis of randomized modulation schemes based on finite Markov chains. The main advantage of this novel type of randomized modulation is the availability of an explicit control of time-domain performance, in addition to the possibility of shaping the power spectra of signals of interest. We focus on the power spectra of the switching functions that govern converter operation, and on the power spectra of certain associated waveforms, numerical (Monte Carlo) and experimental verifications for our power spectral formulas are presented. We also formulate representative narrow- and wide-band synthesis problems in randomized modulation, and solve them numerically. Our results suggest that randomized modulation is very effective in satisfying narrow-band constraints, but has limited effectiveness in meeting wide-band signal power constraints
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1109/87.553665
