NDLI: Stability investigation of control system for power electronic converter acting as load interface in AC distribution system

Content Provider	IEEE Xplore Digital Library
Author	Jelani, N. Molinas, M.
Copyright Year	2011
Description	Author affiliation: Norwegian University of Science and Technology, Department of Electric Power Engineering, Trondheim, Norway (Jelani, N.; Molinas, M.)
Abstract	This paper presents the tuning techniques for the control system of the regulated loads in AC distribution system. A mathematical model of a voltage source converter based power electronic load in synchronous reference frame is considered with the implementation of vector control. The transfer function for the voltage and current control loops are derived. A frequency domain analysis based on the derived analytical expressions is performed with the decreasing values of the grid voltage. The analysis confirms the decrease in phase margins with the decrease in grid voltage. A time domain simulation analysis is carried out to validate the results from frequency domain analysis. The control system shows a very stiff control up to 0.6 pu decrease in grid voltage. A similar simulation study proves that the converter control system is more robust and stable in generation mode.
Starting Page	408
Ending Page	413
File Size	576353
Page Count	6
File Format	PDF
ISBN	9781424493104
e-ISBN	9781424493128
e-ISBN	9781424493111
DOI	10.1109/ISIE.2011.5984193
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-27
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Yttrium Decision support systems vector control Distributed energy systems frequency domain analysis modulus optimum power electronic loads PI controller symmetrical optimum voltage source converters
Content Type	Text
Resource Type	Article

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