Title :
On the control of a DC-link based high frequency AC-voltage regulator
Author_Institution :
Grundfos Manage. A/S, Bjerringbro, Denmark
fDate :
6/23/1905 12:00:00 AM
Abstract :
This article presents a DC-link based AC-voltage regulator topology and a control strategy which overcomes the known problems in AC-voltage regulator topologies which are based on bi-directional switches. The article starts with a review of the different principles for current commutation in high frequency AC-voltage regulators with bi-directional switches. The DC-link topology is presented, and control and modulation principles, are discussed. The proposed modulation principle reduces the losses. Saber simulations and sample results of a practical implementation are used to validate the performance of the topology. Finally, a comparison of the characteristics for high frequency ac-voltage regulators are presented
Keywords :
AC-AC power convertors; PWM power convertors; circuit analysis computing; commutation; control system analysis computing; control system synthesis; switching circuits; voltage control; voltage regulators; AC voltage regulator topology; AC/AC power conversion; DC-link based high frequency AC voltage regulator control; Saber simulations; bidirectional switches; characteristics comparison; control principles; control strategy; current commutation; losses reduction; modulation principles; Acoustic noise; Bidirectional control; Circuit noise; Circuit topology; Electric variables control; Frequency; Pulse width modulation; Regulators; Switches; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954270
