DocumentCode :
3566691
Title :
A voltage regulator/conditioner based on a hybrid transformer with matrix converter
Author :
Szczesniak, P. ; Kaniewski, J.
Author_Institution :
Inst. of Electr. Eng., Univ. of Zielona Gora, Zielona Gòra, Poland
fYear :
2014
Firstpage :
3292
Lastpage :
3297
Abstract :
This paper deals with a voltage regulator based on a hybrid transformer with matrix converter realizing an electrical coupling in the hybrid transformer unit. The parameters of electrical energy such as voltage amplitude are very important, particularly from the viewpoint of the final consumer and sensitive loads connected to the grid. Furthermore, a hybrid transformer using matrix converter can be used for power flow control and for transient stability improvement in AC transmission systems. Active power flow and voltage magnitude in transmission lines can be varied using a conventional or thyristor controlled regulators. However, the control parameters can be executed only in steps depending on the taps available in the transformer. An approach for obtaining continuous control of the voltage magnitude and phase shift using a conventional transformer with two windings and a pulse width modulated matrix converter is presented in this paper. The operating principles and steady state properties are discussed. Detailed computer simulation results are presented in the paper. Furthermore, experimental test results obtained from a three-phase 3 kVA laboratory model with passive load are also presented.
Keywords :
PWM power convertors; flexible AC transmission systems; load flow control; matrix convertors; power system transient stability; power transformers; transformer windings; voltage control; voltage regulators; AC transmission systems; active power flow; apparent power 3 kVA; computer simulation; electrical coupling; electrical energy parameters; hybrid transformer unit; phase shift; power flow control; pulse width modulated matrix converter; three-phase laboratory model; thyristor controlled regulators; transformer windings; transient stability improvement; transmission lines; voltage magnitude; voltage regulator-conditioner; Matrix converters; Phase transformers; Power transformers; Voltage control; Voltage fluctuations; Windings; Matrix Converter; Phase Shifter; Power Flow Control; Voltage Compensator;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
Type :
conf
DOI :
10.1109/IECON.2014.7048984
Filename :
7048984
Link To Document :
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