Model-free subspace-based control scheme for grid-connected voltage source inverters
Author(s)
Chen, Jianmin
Yang, Fuwen
Han, Qing-Long
Griffith University Author(s)
Year published
2012
Metadata
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In this paper, both model-free subspace-based LQG control and H∞ control schemes are used to investigate the tracking control performance and robustness of grid-connected voltage source inverters (VSIs). The proposed approaches do not require any identification or other modeling process. The controller can be directly derived from the experimental inputs/outputs measurements. Both the subspace-based LQG controller and H∞ controller are recursively designed. Simulation results show subspace-based LQG controller has a better tracking control performance than subspace-based H∞ controller, whereas, H∞ controller has stronger ...
View more >In this paper, both model-free subspace-based LQG control and H∞ control schemes are used to investigate the tracking control performance and robustness of grid-connected voltage source inverters (VSIs). The proposed approaches do not require any identification or other modeling process. The controller can be directly derived from the experimental inputs/outputs measurements. Both the subspace-based LQG controller and H∞ controller are recursively designed. Simulation results show subspace-based LQG controller has a better tracking control performance than subspace-based H∞ controller, whereas, H∞ controller has stronger robustness than LQG controller.
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View more >In this paper, both model-free subspace-based LQG control and H∞ control schemes are used to investigate the tracking control performance and robustness of grid-connected voltage source inverters (VSIs). The proposed approaches do not require any identification or other modeling process. The controller can be directly derived from the experimental inputs/outputs measurements. Both the subspace-based LQG controller and H∞ controller are recursively designed. Simulation results show subspace-based LQG controller has a better tracking control performance than subspace-based H∞ controller, whereas, H∞ controller has stronger robustness than LQG controller.
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Conference Title
PROCEEDINGS OF THE 10TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION (WCICA 2012)
Subject
Electrical and Electronic Engineering not elsewhere classified